022397   Kadam M S;Nanware S S;Ambore N E (Zoology Post Graduate Dep, Yeshwant Mahavidyalaya, Nanded-431 602) : Fish diversity in Masoli dam, Gangakhed, Parbhani district (M S ) India. Bioinfolet 2007, 4(1), 73-4.

Investigation was carried out to study the aquatic vertebrate animals with reference to fishes of Masoli dam during the year 2003-2004. The Masoli dam is mainly used for irrigation, drinking water and fishing purpose. During the study 13 species of fishes were observed.

1 table, 13 ref

022396   Jyothi J V A (Zoology Dep, Bangalore Univ, Bangalore-560 056, Email: jyothi55@rediffmail com) : Effect of lighting conditions and substratum on egg laying behaviour of greater wax moth, Galleria mellonella (L ). Proc Zool Soc India 2006, 5(2), 97-105.

Greater wax moth (Galleria mellonella L) preferred darker places. The results showed lighting conditions have significant effect on the egg laying behaviour of greater wax moth and determines the various parameters viz. oviposition period and total number of eggs aid. Constant exposure to light showed considerable reduction in egg laying capacity of greater wax moth. In darker conditions 96.68%eggs were laid by the wax moth. In case of normal and continuous light exposure 52.93%and 32.26% eggs laid respectively. Under above-mentioned lighting conditions, a significant variation in ovipositional period was observed viz. 7.3 days, 6,6 days and 3.8 days. The substratum also showed an influence on egg laying behaviour of wax moth. The detailed study of the egg laying behaviour of greater wax moth suggested that the pest (wax moth) was nocturnal in habit. The relationship between the host and pest shows the ecological balance and their harmonious co-existence.

3 tables, 9 ref

022395   Jayakumari I (Zoology Dep, Sree Ayyappa College for Women, Chungankadai, Nagercoil) : Length - weight relationship of Palaemon (Palaemon) concinnus, Macrobarachium latimanus and Ocypode platytarsis. Proc Zool Soc India 2006, 5(2), 1-10.

Length-weight relationship of three species of decapod crustaceans namely, Palaemon (Palaemon) concinnus, Macrobrachium latimanus and Ocypode platytarsis collected from Thiruvananthapuram and environs were investigated. The results indicated that the females of P. (P.) concinnus, the males and females of M. latimanus and O. platytarsis exhibited, allometric growth while the males of P. (P.) concinnus exhibited isometric growth pattern.

3 tables, 2 illus, 18 ref

022394   Gurpreet Kaur;Parshad V R (Zoology & Fisheries Dep, Punjab Agricultural Univ, Ludhiana-141 004) : Effect of conspecific urine for improving the efficacy in trapping of rodents. Envir Ecol 2006, 24(4), 765-7.

Rodenticide baiting and trapping are the common methods for the control of rodents. During the present studies, efficacy of multi catch wonder traps baited with mixture of broken wheat grains, sugar powder and groundnut oil( WSO, 96:2:2) and with 0.5% female urine of bandicoot rat was determined in maize and bajra fields. Use of baits with 0.5% urine of female B. bengalensis improved the efficacy of trapping in fodder fields. Out of total trapped rats, 68.75% were caught in traps with 0.5% urine bait and 31.25% in traps baited without urine. Capturing of greater number of rats in traps with 0.5% urine bait during the present field experiment established the practical importance of urine for improving the trappability of rats in field situations where rats are widely dispersed.

1 table, 17 ref

022393   Gurpreet Kaur;Parshad V R (Zoology & Fisheries Dep, Punjab Agricultural Univ, Ludhiana-141 004) : Evaluation of appropriate method for application of conspecific, urine in plain and poison bait acceptance for the control of Bandicota bengalensis (gray and hardwicke) in the fields. Envir Ecol 2006, 24(4), 747-53.

Study was carried out to assess suitable method with the urine application for improving the acceptance of bait by the bandicoot rats. T-maze was fabricated by using laboratory cages for this experiment, which consisted of three arms I, II and III and the central cage. In the control experiment mixture of cracked wheat, powdered milk, powdered sugar and groundnut oil (WMSG, 85:5:5:5) was placed on a piece of paper in I and II arms whereas III arm had WMSG in a bait station fabricated from condemned scooter tyre pieces. Three experiments were carried out in which plain I lit was kept in all the three, II rat urine was applied to the paper on which plain bait was kept and in the III experiment 0.5% urine was mixed with bait and kept on plain paper. The last one experiment attracted maximum number of rats. The experiments were statistically verified and third experiment proved to be accepted significantly.

2 tables, 3 illus, 13 ref

022392   Gupta P;Shamim S M (Zoology Dep, R U, Ranchi) : Methods of collection, preservation and taxonomic study of. Proc Zool Soc India 2006, 5(2), 85-91.

Taxonomy plays an important role in the field of applied biology because unless and until the identity of the pest or the pests is accurately determined no control measures can work. A wrong identification may upset the entire control strategy. The chalcid parasitoids which are economically important natural enemies of insect pest of various crops are used in biological control programmes, It is a cost effective control measure and works without adversely affecting the environment.

4 illus, 3 ref

022391   Gandotra R;Ahmed S;Shanker R (Zoology Dep, Jammu Univ, Jammu-180 001) : Food and feeding habit of Barilius vagra (Ham.) -a minor carp, in different age groups from Jhajhar stream, Jammu (J&K). Aquacult 2007, 8(1), 1-11.

Gut content analysis of Barilius vagra (Ham.) in all the four age group viz. 0⁺, 1⁺. 2⁺, 3⁺ size range (2.1-13 cm TL) revealed that the fish is mainly an euryphagic and column feeder. Its food mainly composed of Algae, Insects, Crustaceans, Diatoms, Rotifers, Deteritius and Miscellaneous items. The younger stages i.e. from 0⁺ to 1⁺ age group were found to be carni-omnivorous, as the under yearlings feed mainly on 47.15% of animal matter and, 32.07% of plant matter, whereas in 1⁺ age group the animal and plant matter composition was 32.79% and 23.03% respectively. On the other hand, fishes of 2⁺ and 3⁺ age groups mainly feed on 11.29% and 14.52% of animal matter and 40.4% and 42.02% of plant matter respectively. On this basis, the adult stages can be safely categorized as herbi-omnivorous. Relative Gut length increase from 0.7280 in 0⁺ age group to 1.145 in 3⁺ age group and shows significant linear co-relation with length of the fish. The value of "r" was found to be 0.997, 0.983, 0.984, and 0.993 in 0⁺, 1⁺, 2⁺ and 3⁺ age group respectively. Gastrosomatic index shows gradual decline, it was maximum i.e. 4.39 in 0⁺ and minimum i.e. 1.95 in 3⁺ age group. In adults, the feeding intensity was maximum in pre-spawning period, moderate in post-spawning period and minimum during spawning phase.

5 tables, 5 illus, 31 ref

022390   Gajare K A;Deshmukh A A;Pillai M M (Zoology Dep, Government Vidarbha Institute of Science and Humanities, Amravati-444 604, Email: kavita_kanu@rediffmail com) : Neuroprotective effect of Bacopa Monniera Linn extract on lipofuscinogenesis and fluorescence product in brain of d-galactose induced ageing accelerated mice. J Cell Tissue Res 2007, 7(2), 1167-72.

Bacopa monniera is a medicinal plant used in Ayurveda for improving memory and learning. It is also used as anxiolytic, cognition enhancer, antidepressant, anticancer, immuno-modulatory, and anti-inflammatory agent. It has been proven to posess antioxidant property. In the present investigation effect of ethanolic extract of B. monniera was studied on lipofuscinogenesis and fluorescence product in the brain of female albino mice. For this study ageing was accelerated by the treatment of 0.5 ml 5% D-galactose for 15 days. This resulted in increased accumulation of lipofuscin granules and increased fluorescence product. After co-treatment with ethanolic extract of B. monniera (40 mg/kg body wt.) there was decrease in accumulation of lipofuscin granules and significantly decreased fluorescence product in cerebral cortex, hippocampus, corpora quadrigemina, cerebellum as compared to ageing accelerated group.

1 table, 12 illus, 45 ref

022389   Gaikwad R B;Vaidya V V;Deshpande S D;Kulkarni J A;Kulkarni G K (Zoology Dep, Vidya Pratishthan's, A S C Collge, Baramati, Pune) : (NULL). Bioinfolet 2007, 4(2), 90-2.

Baramati is one of the well-known regions of Pune District (Maharashtra), where most of the land is under sugarcane cultivation. In this region, irrigation is available on about 60,656.00 hectares. Due to heavy irrigation the soil becomes more saline in nature. Study the experiments were conducted on an earthworm Polypheretima elongata to find the lethal dose of sodium chloride. Well-acclimatized healthy earthworms were selected for toxicity test in soil for a period of 24 to 96 hours. Observed and calculated values were recorded. LD₅₀ values for sodium chloride were found to be 10.5, 7.1, 5.5, and 3.1 gm/kg of soil for 24, 48, 72 and 96 h respectively.

1 table, 14 ref

022388   Deshmukh A A;Gajare K A;Pillai M M (Zoology Dep, Govt Vidarbha Institute of Science, and humanities Amravati-444604, Email: ashish_cellbio@rediffmail com) : Neuroprotective effects of lettuce (Lactuca sativa linn ) in d-galactose induced ageing in female albino mice. J Cell Tissue Res 2007, 7(1), 997-1002.

Consumption of green vegetables and fruits slow down the process of ageing as they contain natural antioxidants. Lactuca sativa is a rich source of flavonol antioxidants like quercetin and caffeic acid. In addition, it also carries ascorbic acid, which is a well-known antioxidant. Lettuce is routinely used in many parts of the world as green salad. Anti-ageing effect of ethanolic extract of Lactuca sativa was studied in D-galactose induced ageing accelerated female albino mice. For this purpose the animals were divided into three groups viz., control group - injected (s.c.) with 0.5 ml sterile water for fifteen days, ageing accelerated group - injected (s. c.) with 0.5 ml of 5% D-galactose for fifteen days and D-galactose + Lactuca sativa cotreated group - given 0.5 ml of 5% D-galactose containing ethanolic extract of Lactuca sativa (40 mg/kg body wt.) for fifteen days. Measurement of malondialdehyde (MDA), antioxidant enzymes SOD, CAT and GPx were carried out in various regions of brain viz., cerebral cortex, hippocampus, corpora quadrigemina and cerebellum. Study shows a significant increase in MDA and corresponding decrease in all the three antioxidant enzymes in ageing accelerated group than the control group. In the present model of D-Galactose induced mimetic ageing, ethanolic extract of Lactuca sativa (40 mg/kg body wt.) has significantly decreased (p<60>0.001) lipid peroxidation and balanced the antioxidant enzymes indicating the and ageing effect of Lactuca sativa.

4 tables, 1 illus, 47 ref

022387   Chatterjee P R;Raziuddin M (Zoology Dep, Kabi Nazrul College Murarai, Birbhum-731 219) : Status of a waterbody in relation to some physicochemical parameters in Asansol town, West Bengal. Proc Zool Soc India 2006, 5(2), 41-8.

Analysis of some physico-chemical parameters of water body in Asansol town (W. B.) has been carried out during the study period from November 2000 to October 2002. Parameters like Water temperature, Transparency, Total suspended Solids, Total Dissolved Soils, pH, Dissolved Oxygen, Free Carbon Dioxide, Total alkalinity, Hardness, BOD, COD Chloride, Nitrate Nitrogen, Phosphate Ammonical Nitrogen have been investigated. No earlier reports regarding the magnitude of such parameters indicating severe deterioration of the Water quality are available.

1 table, 22 ref

022386   Bodare R D;Pillai M M (Zoology Dep, Shivaji Univ, Kolhapur-416004, Email: rdbodare@rediffmail.com) : Effect of salivariadenectomy on the testicular lactate dehydrogenase-x in mice. J Cell Tissue Res 2007, 7(2), 1083-8.

Aim of present study is to investigate the effect of salivariadenectomy on the postnatal development of testicular lactate dehydrogenase-X. In general the salivariadenectomy means either the removal of sublingual or submandibular glands or removal of both the glands. These glands were removed in male mice at their age of 20 days. The controls were sham operated. The operated male mice were sacrificed at the age of 45 days, 60 days and 90 days. The testes of these animals were studied biochemically and by polyacrylamide gel electrophoresis (PAGE) for lactate dehydrogenase activity. The epididymis was used to study the sperm count. In control mice, the lactate dehydrogenase were electrophoretically separated into six bands i.e., I, II, HI, IV, V and LDH-X, but the testis specific LDH-X band was completely disappeared in salivariadenectomised mice. The total LDH activity and the sperm count were decreased significantly in the operated mice sacrificed at different age intervals.

3 tables, 2 illus, 28 ref

022385   Bahuguna S N;Rayal R (Zoology Dep, (UGC-SAP, COSIST, FIST), Post Box-70, H.N.B. Garhwal Univ, Srinagar, Garhwal-246 174) : Histo- morphological study of the optic tissue in the larvae of Himalayan snow trout Schizothorax plagiostomus (heckel). Aquacult 2006, 7(2), 153-58.

Deals with the histo-morphologjcal study of optic tissue in the larvae of Himalayan snow trout Schizothorax plagiostomus (Heckel). It is observed that the development of eyes is closely related to the development of brain, which starts to develop after 74 hrs of fertilization. At hatching the larvae have unpigmented optic tissue and after that the formation and development of different cells layer, enlargement and thickness of cells takes place. Retractor muscles were not functional until 15th day post hatching. During post flexion stage the retina of Schizothorax plagiostomus larvae had only single cones layer, while twin cone and rods cells begin to develop with the ending of post flexion stage (25-30th day post hatching). On 30th day post hatching the optic tissue (eyes) consists of well developed cornea and eight layered retina (outer is pigmented epithelial layer followed by rods and cones, next is outer nuclear layer, outer plexiform layer, inner nuclear layer, inner plexiform layer, ganglion cell layer, and nerve fiber layer), surrounding the three layered (outer encapsulating sheath, followed by physiologically active cells and fibrous layer) spherical ball like lens.

5 illus, 24 ref

022384   Arora S;Sharmila Rani;Dutta S (Zoology Dep, Ranchi Womens College, Ranchi) : Estimation of total carbohydrate, protein and lipid in a abomassal nematode, Haemonchus contortus. Proc Zool Soc India 2006, 5(2), 63-8.

Carbohydrate, Protein and lipid were estimated in a abomassal nematode Haemonchus contortus inhabiting the abomassums of goat, Capra capra. Protein content was much higher than Carbohydrate and lipid.

1 table, 20 ref

022383   Ansa E J;Sikoki E D (African Regional Aquaculture Center Buguma, , P M B 5122, Port Harcourt, Rivers State-500 001, Nigeria) : Composition, distribution and abundance of benthic macrofauna in the andoni flats, Niger delta, Nigeria. Envir Ecol 2006, 24(4), 784-91.

Composition distribution and abundance of benthic macrofauna in the Andoni flats were studied from January 1999 to December 2000. A total of 30 species of benthic macrofauna were recorded which cut across the Phyla Coelenterata, Annelida, Mollusca, Arthropoda and Chordata. Coelenterata was represented by one species of anemone; Annelida had four genera of polychaetes, Arthropoda was represented by five species of crabs, and two species of shrimps. Phylum Mollusca was represented by four bivalve species and seven gastropods; while Chordata was represented by seven species of fin-fish. The bivalves were more abundant in the intertidal sandy substrate with characteristic low organic carbon content and longer hours of exposure to sunlight than in intertidal muddy substrate shaded by mangrove vegetation and in the subtidal areas.

2 tables, 1 illus, 22 ref

022382   Abdulrazak I P (Zoology Dep, Unity Women's College, Manjeri-676 122) : Analytical study on female flower traits of fig syconia (moraceae). Geobios 2007, 34(1), 3-4.

An obligate mutualism exists between pollinating fig wasps (Agaonine, Agaonidae) and their host fig trees, each needing the other for reproduction. Out of six female flower characters of Ficus species examined, five species, Ficus drupacea, F. religiosa, F. benghalensis, F. exasperate have insignificant impact on the length of style over its ovary breadth and length. In contrast, F. racemosa has a significant relationship.

1 table, 3 ref

021481   Veerakumari L;Navaneetha Lakshmi K (PG and Research Zoology Dep, Unit of Parasitology, Pachaiyappa's College, Chennai-600 030) : In vitro effect of Allium sativum on lactate dehydrogenase activity of Haemonchus contortus. J Vet Parasitol 2006, 20(1), 93-6.

In vitro effect of Allium sativum on lactate dehydrogenase (LDH) of Haemonchus contortus was studied. A. sativum significantly inhibited the LDH activity catalysing both oxidation of lactate and reduction of pyruvate. At 1% concentration after 8h exposure, the inhibition of LDH catalysing the oxidation of lactate was 74.57% and the inhibition of LDH catalysing the reduction of pyruvate was 38.41%. This results in the debilitation of pyruvate and the accumulation of lactate. Consequently, the generation of ATP is affected and the energy-deprived worms unable to sustain themselves in situ get eliminated from the host.

2 illus, 1 table, 18 ref

021480   Veerakumar L;Priya P (PG & Research Zoology Dep, Unit of Parasitology, Pachaiyappa's College, Chennai-600 030) : In vitro effect of azadirachtin on the motility and acetylcholinesterase activity of Cotylophoron cotylophorum (Fischoeder, 1901). J Vet Parasitol 2006, 20(1), 1-5.

A anthelmintic activity of azadirachtin on the motility and acetylcholinesterase activity (AChE) of the digenetic trematode Cotylophoron cotylophorum was studied. The worms were exposed to five different sub-lethal concentrations (0.001%, 0.002%, 0.003%, 0.004% and 0.005%) of azadirachtin for 2, 4 and 8 h. Motility response of the drug-treated parasites was recorded with the aid of electronic micromotility meter (EMM). Maximum inhibition in the motility (86.12%) and AChE activity (85.4% was observed in 0.005% concentration after 8 h of exposure. Azadirachtin, thus, acts as a potent AChE inhibitor, affecting the motor activity of the parasite, thereby leading to its expulsion from the host rumen.

5 illus, 1 table, 17 ref

021479   Tripathi P;Sultana N (Zool Dep, A.N.D. Girls Degree College, Harsh Nagar Kanpur, Uttar Pradesh) : Fluroride content in ground water of some rural communities of district Unnao (U.P.). Ecol Envir Conserv 2006, 12(2), 279-80.

Twenty water samples were collected from rural communities of Tehsil Purwa district Vnnao (V.P.) and analysed for fluoride and other physico-chemical parameters like colour, odour, temperature, turbidity, suspended solids, pH, hardness and alkalinity which influence the fluoride concentration. The fluoride ion concentration in these areas ranged from 1.5 mg/L to 2.5 mg/L where as permissible limit for fluoride ion concentration is only 1.5 mg/L.

1 table, 7 ref

021478   Tripathi A;Tripathi N;Kumar Anand;Tripathi M (Zoology Dep, Lucknow Univ, Lucknow, 226 007) : Effect of fluoride on vertebral column of a freshwater fish Channa punctatus. J appl Biosci 2006, 32(2), 164-7.

Radiological observations of fish exposed to two different concentrations of fluoride for 90 days showed several structural deformities like bending, curvature in vertebral column and fusion of vertebrae at some places. Histological observations of vertebrae revealed decrease in diameter of neural canal. Increase in bone density was also recorded concluding that fluoride affected the vertebral column and caused immobilization due to deposition of the bony materials.

6 illus, 2 tables, 16 ref

021477   Taneja S K;Mandal R (Zoology Dep, Panjab Univ, Chandigarh-160 014, Email: sktaneja@gmail.com) : Effect of modified eggs on metabolic syndrome-x induced stress in female wistar rats. Nat Prod Radiance 2007, 6(1), 22-33.

Metabolic syndrome-X induced stress is prevalent world over and is being managed through pharmacological treatment. There are some dietary components such as Zn, Cu, Mg, Mn, vitamin-E, C and omega-3 fatty acids which have been shown, to reduce the severity of stress associated with metabolic syndrome-X. But in the Indian staple diet, there is a big gap between requirement of these dietary components and their availability in food particularly in the patients of metabolic syndrome-X. Keeping this in mind, modified eggs were designed (Patent Application No.2264 Del-2005) and their efficacy on metabolic syndrome-X was studied in female wistar rats. The results of this study revealed that feeding on these eggs mixed diets to metabolic syndrome-X induced rats, a considerable reduction in stress hormone cortisol, total lipids, IDL-c and VLDL-c in the blood, improvement in the sensitivity of insulin leading to reduction in blood glucose and rise in HDL-c and improvement in the mineral status in blood serum and tissues were observed. This data suggests that these modified eggs are effective in reducing the metabolic syndrome-X induced stress.

4 illus, 9 tables, 82 ref

021476   Sushil Kumar;Bhadauria M;Chauhan A K S; Chandel B S (Zoology Dep, Narain College, Shikohabad) : Use of certain naturally occurring herbal grain protectants against Sitophilus oryzae Linn. (Coleoptera: Curculionidae). Asian J expl Sci 2007, 21(2), 259-95.

Effect on life process of S. oryzae was observed in grains treated with various grain protectants. All grain protectants were found to be significantly superior in affecting the life process of the pest over untreated check, the oil of A. indica (18.00 eggs) was found to be most effective in reducing the number of egg laid by weevil which was followed by A. indica powder, M. azedarach and M. dioica being 21.00, 24.67 and 31.00 eggs, respectively. The incubation period was non significant in different grain protectants which varied from 6.48 to 8.95 days. However, it was 6.48 days in M. azedarach signify the minimum larval period was in the treatment C. nucifera (19.30 days), significantly highest larval period (26.50 days) was recorded on grains treated with A. indica powder. There was no significant variation in pupal period of the pest and it ranged from 12.54 to 13.94 days in different treatments. The F₁ population of the pest ranged from 3.33 to 31.00 adults in different grain protectants, while it was 76.33 adults in untreated check. The less number of weevils were found in grains treated with A. indica oil. The wheat grains treated with different grains protectants the grain damage by S. oryzae was maximum in grains treated with C. nucifera (39.39 percent) and minimum (4.65 percent) in A. indica oil. The loss in weight of the wheat grains in different grain protectants was significantly less, which ranged from 1.95 to 23.02 percent in comparison of untreated check (48.63 percent).

021475   Sudhakar Prakash;Saxena A M (Zoology Dep, University of Lucknow, Lucknow, Uttar Pradesh) : New species of the genus Lecithochirium Luhe, 1901 from marine fishes, Deegha (W.B.). Natn J Life Sci 2006, 3(1), 97-9.

New digenetic trematode species Lecithochirium guptai sp. Novo. having vesicular saminalis extending up to middle of ventral sucker has been described from the stomach of a marine fish Tetradon lunaris (Bl. and Schn.) from Deegha, West Bengal.

1 illus, 8 ref

021474   Srivastav M (Fruits and Horticultural Technology Div, I.A.R.I., New Delhi-110 012) : Response of paclobutrazol in selected bioassays. Indian J Pl Physiol 2006, 11(3), 223-6.

Present investigation was carried out to analyse the response of varying concentrations of paclobutrazol in plant tissues. Evidences were produced by examining the interaction of gibberellic acid (GA₃) and paclobutrazol (PBZ) in lettuce hypocotyl bioassay and 6-benzyl aminopurine (BAP) and paclobutrazol in radish cotyledon enlargement test that paclobutrazol counteracts gibberellin activity when applied exogenously. It also favoured radish cotyledon enlargement at low concentration without counteracting BAP action. Paclobutrazol slightly increased radish cotyledon growth at low concentration (up to 0.01 ppm) and could not counteract the growth caused by 1.0 ppm BAP at its 0.001 to 1.0 ppm concentrations suggesting independent effect of paclobutrazol to that of BAP. Furthermore, the activity of paclobutrazol was tested in corn root curvature test and it was found that PBZ concentrations from 0.001 to 10,0 ppm linearly increased the percentage of corn roots showing more than 90° curvature.

18 ref

021473   Singh A K;Srivastava A;S G;Singh V B (Zoology Dep. Tilak Dhari College, Purvanchal Univ, Jaunpur, U.P.-222 002, Email: amit_6jan@yahoo.com) : Effect of methyl parathion on antioxidant enzymes (Cat & GPX) of freshwater fish, Heteropneustes fossilis (Bloch.). J advd Zool 2006, 27(2), 94-7.

Effect of single exposure of Methyl parathion on Catalase (CAT), Glutathione peroxidase (GPx) of liver, Kidney & gill, of a medicinally important freshwater teleost fish, Heteropneustes fossilis (Bloch.) was evaluated. The LC (I) 50, initial lethal concentration of the technical grade MEP for 21 days was 2.458 ppm & its sub lethal concentration was 1 x 10^-1 ppm. MEP exposure resulted in to a significant induction (p<60>0.02-0.001) of GPx in all tissues was considered. However, CAT, activity was found notably decreased (p<60>0.01-0.003). Results unequivocally confirm peroxidative damage-dependent modulation of antioxidant level in liver, kidney & gill. Our study proposed the measurement of antioxidant level as a useful biomarker for exposure to aquatic pollutants.

1 illus 1 table, 17 ref

021472   Shrivasta M (Zoology Dep, Lucknow Univ, Lucknow-226 007, Email: minakshi_1949@yahoo.com) : Ultrastructures on the hypopharynx of the fifth instar of Gurdaspur borer Bissetia steniellus hampsn (Lepidoptera: crambidae). J appl Biosci 2006, 32(2), 185-8.

SEM studies have shown three types of ultra structures on the hypopharynx of fifth instar of Bissetia steniellus. Long slender hair like processes present on right and left margins in the distal region of hypopharynx may be sensilla cheatica. Very small peg like pointed structures on the margins in proximal part of hypopharynx may be sensilla basiconica. The surface of hypopharynx is covered with very small, medium and long processes. Some long and medium processes are fused together at their tips. These may be sensilla trichodea of variable length - responding to different phagostimulants.

8 illus, 15 ref

021471   Shibu S;Ritakumari S D;Balakrishnan Nair N (Aquatic Biology and Fisheries Dep, University of Kerala, Thiruvananthapuram-695 581) : Incidence and relative abundance of the zooplankton fauna in the Paravur lake - a stropical temporary estuary of Kerala. Ecol Envir Conserv 2006, 12(2), 275-8.

Qualitative and quantitative analysis of zooplankton collected for 12 months from 5 stations showed that the fauna were diverse in time and space. The planktonic groups included coelenterates, rotifers, nematods, oligochaets, polychaets, copepods, ostracods, cladocerans, amphipods, insects and fish larvae. Rotifers and copepods formed the major components in all the samples. Absence of some of the major groups in the retting zone was very conspicuous.

1 illus, 1 table, 7 ref

021470   Saxena R;Sharma A K (Zoology Dep, Pest & Parasite Research Lab. II, Bareilly College, Bareilly-243 001) : Effect of diflubenzuron, a chitin synthesis inhibitor, on the larvae of Henosepilachna vigintioctopunctata (Fabr.). J advd Zool 2006, 27(2), 67-71.

Diflubenzuron, a well known chitin synthesis inhibitor, was tested against Ist and IIIrd instar larvae of Henosepilachna vigintioctopunctata by feeding and contact method. In feeding method for Ist and IIIrd instar larvae, the per cent larval mortality in different concentrations ranged from 41.67 to 100.00 and 33.33 to 83.33, respectively as against 8.33 and 0.00 in their control sets. However, contact treatment on Ist and IIIrd instar larval mortality varied from 33.33 to 100.00% and 16.67 to 75.00%, respectively in various concentrations. No adult emergence in 1000 ppm when tested on Ist instars by both feeding and contact methods. It revealed that dose dependent effect on adult emergence was noticed in both the treatments on both the larval stages of hadda beetle. Data on developmental period revealed that only the least concentration i.e., 100 ppm, when tested on Ist instars through feeding increased the total developmental period (22.49 days) in comparison to control larvae (18.16 days). However, contact treatment on the IIIrd instar larvae also showed some prolongation in total developmental period of hadda beetle in all the concentrations of diflubenzuron as compared to that of control. In a few concentrations some deformed adults with malformed wings, elytra and legs were also noticed. LC₅₀ values were also calculated for both the larval instars of this beetle. On the basis of LC₅₀ values, feeding method proved to be superior over contact method for both the larval stages.

2 illus, 2 tables, 9 ref

021469   Sarabjeet Singh;Chaudhary R (Zoology Dep, Gov M.V.M., Bhopal-462 042) : Use of Y - chromosome in sexual assault by Y-Plex <. Asian J expl Sci 2007, 21(2), 395-406.

Post vasectomized azoospermic semen sample were analyzed for short. tandem repeat (STR) on the Y- Chromosome by using 310 Genetic Analyzer. It has been observed a wide variation was attributed to the number of epithelial or white blood cells that are present in these azoospermic sample. DNA Profile of the vasectomized males was obtained for all six Y- STR Loci and by amplification kit. The method developed in the study demonstrate that Y- STR is a sensitive method for the identification of the presence of male epithelial cell in the post coital vagina.

021468   Sanjeev Kumar;Sahi D N (Zoology Dep, University of Jammu, Jammu, Jammu and Kashmir) : Avian fauna of Sewa river catchment area dist. Kathua (J&K). Natn J Life Sci 2006, 3(1), 83-9.

Avifaunal survey was carried out in Sewa River catchment area district Kathua, J&K from Oct. 2001 to Dec. 2002. The investigation encompasses the diversity and resident I migratory as well as conservation status of different bird species reported in the proposed area by employing the Line transect method. During the course of study 79 species of birds belonging to 3 families and orders were reported. 4 species i.e. Indian Shikra (Order Falconiformes, Family Acciptridae) Chir pheasant, Kaleej pheasant and Monal pheasant (Order : Galliformes Family Phaseanldae) come under Schedule I and rest of the species come under Schedule IV of the Wildlife Protection Act. 1972.

1 table, 6 ref

021467   Rafiyuddin M;Rao N J;Girisham S;Reddy S M (Microbiology Dep, Kakatiya Univ, Warangal-506 009) : Toxicology of tremorgenic mycotoxin on chick. Natn Acad Sci Lett 2006, 29(7-8), 311-5.

Toxicity of aflatrem and penitrem A produced by Aspergillus flavus and Penicillium puberulum was tested on chicks. Significant decrease in iron, proteins, calcium, abumins and urea of serum, while increase in SGOT and SGPT was recorded under the influence of penitrem A. Similarly WBC decreased, while RBC increased due to penitrem A. Significant changes in proteins, glycogen, and cholesterol of liver, brain, heart and kidney were also recorded. Histopathological changes of much significance were also recorded in tissues of heart, liver and brain.

2 tables, 23 ref

021466   Priyanka Mehta;Singh K B (Animal Science Dep, Faculty of Applied Sciences, M.J.P. Rohilkhand University, Bareilly-243 005) : Non-enzymatic antioxidant-ascorbate status and cholesterol levels in ethanol treated albino rat Rattus norvegicus. J appl Biosci 2006, 32(2), 174-6.

Study was conducted to evaluate ascorbate defense system and oxidative stress in male albino rats under acute ethanol treatment. The levels of ascorbate (Liver & Adrenals) and cholesterol (Liver, Adrenals and Testes) were decreased significantly in ethanol treated animals as compared to control and distilled water treated animals. When ascorbate was supplemented with ethanol, the cholesterol and ascorbate levels decreased to a lesser extent as compared to only ethanol treated animals, but the decrease was significant as compared to both controls. Results show increased oxidative stress and compromised antioxidant ascorbate defense system in ethanol treated albino rats.

2 table, 25 ref

021465   Pradip Kumar;Gupta Y C;Tiwari V;Tiwari S (Zoology Dep, B.S.A. College, Mathura, Uttar Pradesh) : Bioaccumulation of copper in Cirrhinus mrigala (Ham.). Natn J Life Sci 2006, 3(1), 39-41.

Studies the LC₅₀ of copper sulphate to Cirrhinus mrigala (Ham.) was found to be 2.4 ppm. The accumulation of copper was studied in intestine, stomach, gills, liver, ovary and muscles of the same fish. The exposed fishes were later maintained in a copper free environment for fifteen days to notice the effect on depurating accumulated copper.

1 table, 8 ref

021464   Pavunraj M;Ezil Vendan S;Ignacimuthu S (Entomology, Research Institute, Loyola College, Chennai-600 034) : Digestion of cellulose and starch by symbiotic bacteria in the gut of the giant tiger prawn Peaneous monodon (F.). J advd Zool 2006, 27(2), 56-60.

Microorganisms play an important and often essential role in the digestion and growth of many arthropods. Little is known about symbiotic bacteria associated with Crustaecae. We inventoried the gut bacteria of an omnivore, the giant tiger prawn (Peaneous monodon). This shrimp consumes algal polysaccharides as their part of diet. Cellulose and starch are the major composition of marine green algae. As they consume polysaccharide in their diet, their digestive tract must contain cellulose and starch degrading enzymes. This is supported by bacteria in the digestion of cellulose and starch. The bacteria isolated were characterized biochemically and found to be Citrobacter, Proteus, Serratia, Bacillus and Pseudomonas. These bacteria help in the digestion of cellulose and starch in the diet of prawn P. monodon. Hence, the study shows that the midgut has higher activity than foregut and hindgut in cellulose and starch degradation.

1 illus, 2 table, 22 ref

021463   Parashar A;Diwan D (Zoology Dep, Sarojini Naidu Government Girls P.G. College, Bhopal, Madhya Pradesh) : Modeling of water quality dynamics for the optimisation of aquaculture pond. Natn J Life Sci 2006, 3(1), 43-6.

Water quality dynamics was developed as a tool to explain water quality interaction and behaviour in an aquaculture pond. Based on the chemical processes in pond water, the causal relationship linking the pond ecosystem structure to soil and water interactions, results into the productivity of fish pond was identified to develop a system dynamics model using STELLA software. In the present paper modeling result of water quality dynamics is given. The model was used to simulate a field experiment designed to evaluate the water quality parameters of water such as dissolved-oxygen, alkalinity, temperature, transparency and pH, that play an important role in fish pond. The model address the importance of management practices which dramatically inf1uencing pond productivity. Aimed at exploring better options for sustainable aquaculture.

3 illus, 8 ref

021462   Pancharatna K;Patil M M (Zoology Dep, Karnatak Univ, Dharwad-580 003, Email: pancharatnM@yahoo.com) : Control of oogonial proliferation in the ovary of indian skipper frog, Euphlyctis cyanophlyctis (SCHN.): role of gonadotrophins and estrogen. J advd Zool 2006, 27(2), 83-7.

In the recently metamorphosed frog Euphlyctis cyanophlyctis (body mass: 5 ± 1g; snout-vent length: 4±0.1 Cm, corresponding to TK stage XXV) one month treatment with pregnant mare serum gonadotrophin (PMSG)- or human chorionic gonadotrophin (HCG) (10 IU/day) or methalllibure (ICI compound, 10 μg/day) or estradiol-17p (0.2 μg/day) had no effect on the total oogonial number in the ovary (quantified from serial sections) compared to the distilled water injected controls. In all the groups oogonial number uniformly increased (P<60>0.05) over the start controls. The findings indicate that gonadotrophins and sex steroids play no role in the oogonial proliferation of this frog.

1 illus, 1 table, 17 ref

021461   Pallabi Devi;Islam S;Monoranjan Das (NO, , C/o Mr. B. K. Sarma, Advaocate, Kalaguru Bishnu Rabha Path, Alok Nagar, Beltola Tiniali, Guwahati-781 028) : Prevalence of freshwater snails in Assam. J Vet Parasitol 2006, 20(1), 81-4.

Prevalence of freshwater snails in Greater Guwahati (26°05' to 26°15'N latitudes and longitudes 91°35' to 91°50'E) was studied for a period of one year (September 1999 to August 2000). Out of a total 17 species recorded, the prevalence of Brotia (antimalania) costula, Lymnaea (Pseudosuccinia) acuminata f. chlamys, Lymnaea (Galba) andersoniana, Segmentina trochoidea, Physa acuta and Lamellidens corrianus are found to be new record from the region. Species wise highest and lowest prevalence was found in Indoplanorbis exustus (10.68%) and Lamel'idens corrianus (0.97%) species, respectively. Physa acuta has been recorded from the region which was otherwise considered to be available only in fossil forms in India.

1 illus, 1 table, 13 ref

021460   Narladkar B W;Deshpande P D;Shivpuje P R (Parasitology Dep, College of Veterinary and Animal Sciences, MAFSU, Parbhani-431 402) : Bionomics and life cycle studies on Culicoides sp. (diptera : ceratopogonidae). J Vet Parasitol 2006, 20(1), 7-12.

Studies on bionomics and life cycle of Culicoides schultzei and C. peregrinus species were carried out. Preferential breeding sites revealed that high concentration of larvae was observed in the wet soil, least contaminated with dung and urine, along the edges of sluggish drains around the cattle sheds. Moderate water content (around 50%), low pH (7.5), low organic matter content (2.64%) and soluble salts (electric conductivity of 1.18 mmhos/cm³) were found favourable for breeding of Culicoides sp. The time taken for development from egg to emergence of adult was 15.17 and 19.83 days, respectively for C. peregrinus and C. schultzei.

3 illus, 3 tables, 32 ref

021459   Mukherjee B;Rajan T (NO, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry-605 006) : Morphometric study of seminal vesicles of rat in normal health and stress conditions. J Anat Soc India 2006, 55(1), 31-6.

Male albino rats were studied from birth to postnatal day 98. Prolonged intermittent stress was inflicted. Consequent upon stress, body weight and weight of the seminal vesicles declined. Using morphometric methods, volume of the components of the seminal vesicle were estimated. Details of the results showed that between day 42 and day 98 in normal control rats, body weight and weight of seminal vesicle increase. The height of the epithelium increase approximately three fold, nuclear diameter increase to nearly double. Absolute volume of the epithelium multiplied enormously followed by the volume of the stroma. The luminal space widen with age of the normal rats. All parameters were depressed due to prolonged stress. On withdrawal of the prolonged stress, the size of the seminal vesicles and the prolific histo-architecture tend to build up.

4 illus, 3 tables, 32 ref

021458   Maurya R C;Srivastava U C (Zoology Dep, (UGC-SAP &DST-FIST SPONSORD), Allahaba Univ, Allahabad-211 002, Email: ucsrivastava@rediffmail.com) : Morphological diversity of the medial cortex neurons in the common indian wall lizard, Hemidactylus flaviviridis. Natn Acad Sci Lett 2006, 29(9-10), 375-83.

Medial cortex of lizards is a Simple three layered brain region displaying cyto- and chemoarchitectonical, connectional and ontogenetics that relate it to the hippocampal fascia dentata of mammals. Its neurons in the cell layer-II show a morphologically diverse population, partly as a result of the prominent continuous growth of this telencephalic region. Authors describe here the morphology of the neurons present in the medial cortex of the common Indian wall lizard (Hemidactylus flaviviridis) by using the classical Golgi-Colonnier procedure. According to classification criteria of dendritic tree pattern and dendritic spine covering we have observed seven different types of neurons in the cell layer-II of the medial cortex. Three of them, "bipolar", "aspinous monotufted monopolar", "aspinous monotufted bipolar", were without spines; whereas the four others having spines were classified as "spinous monotufted monopolar", "spinous monotufted bipolar", "spinous bitufted bipolar", "spinous multipolar". These neurons in the middle layer send their projection dendrites and axon towards the outer plexiform layer and inner plexiform layer. These neuronal types were compared with those reported previously by different workers in the other reptilian medial cortex and in the mammalian dentate area.

^ssc12 illus, 45 ref

021457   Kosygin L;Vishwanth W (Loktak Development Authority, , Ningthoukhong-795 126, Manipur, Email: laishramkosygin@yahoo.com,vnath54@yahoo.com) : Fish fauna of the Ukhrul district, Manipur with a note on conservation strategies. J advd Zool 2006, 27(2), 61-6.

Checklist of the fish resources of Ukhrul district of Manipur has been presented here based on an extensive survey and those reported by earlier workers. A total of 86 species belonging to 51 genera, 18 families and 6 orders have been recorded. The families have been arranged phylogenetically and the species under a genus follow an alphabetic sequence. For each species, correct Zoological name with author citation, have been cited. The fauna is a mixture of endemic hill stream, Burmese, Indochinese and widely distributed forms. Status, distribution and production potentials of the fish fauna are discussed.

2 illus, 1 table, 11 ref

021456   Kamna Singh;Singh N B (Animal Science Dep. Entomology Research Laboratory, M.J.P. Rohilkhan Univ, Bareilly-243 006, Email: kamna_mjpru@yahoo.co.in) : Effects of Azadirachta indica on growth-rates of the developmental stages of Periplaneta americana. J appl Biosci 2006, 32(2), 143-8.

The biomass growth-rate of the developmental stages of Periplaneta americana (Linn.) reared on baked bread, soaked with Azadirachta indica (A. Juss) leaf-extract (2% w/v), at 30 ± 2°C and 35-40% R.H. were determined. The fresh and dry body weight of treated individuals of P. americana were significantly lower in most of the developmental stages of both males and females in comparison to those of controls. The variation in dry body weight % recorded in terms of fraction of fresh weight of treated individuals fluctuated between 36.0-43.26% in males and 32.68-45.01% in females, which were lesser than the corresponding values in control males (39.15-51.67%) and females (36.31-49.66%). The lowest values of absolute daily growth were recorded among the second instar (N₂) male (0.1212 mg d.w./d) and female (0.1493 mg d.w./d) nymphs subjected to leaf extract treatment as compared to the growth-rate of untreated N₂ males (0.1843mg d. w./ind./d.) and N₂ females (0.2012mg d.w./ind./d.). The highest values of absolute growth-rate were recorded in untreated male (7.23mg d.w./d) and female (6.28mg d.w./ind./d.) adults, which were higher than the corresponding values of the treated adults male (4.47 mg d.w./ind./d.) and females (5.50mg d.w./ind./d.). The highest instantaneous growth in control as well as treated individuals were recorded in the early instars N₂ and N₃ while the lowest values were recorded in N₈ (female) ana N_g (male) instars.

2 illus, 5 tables, 31 ref

021455   John Milton M C (Advanced Zoology and Biotechnology and P G Research Dep, Loyola College, Chennai-600 034) : Larvicidal efficacy of the leaves of Azadirachta indica and datura metel against culex quinquefasciatus. J advd Zool 2006, 27(2), 101-5.

Larvicidal efficacy of the leaves of Azardirachta indica and Datura metel was tested against the larvae of Culex quinquefasciatus. After 24 hrs of exposure, the Hexane extract of the leaves of Azardirachta indica at 62.5, 125, 250, 500 and 1000 ppm produced percentage mortality of 24.0 ± 4.4, 36.0 ± 4.2, 55.0 ± 3.6, 64.0 ±, 4.2, 72.5 ± 4.3 and Chloroform extract produced percentage mortality of 12.2 ± 1.7, 48.5 ± 4.3, 56.5 ± 4.0, 73.0 ± 1.7, 87.0 ±1.7 respectively. In Datura metel the percentage mortality was 9.0 ± 1.7, 17.5 ± 2.5, 30.0 ± 2.8, 42.0 ± 2.0, 57.0 ±1.7 in Hexane extracts and 13.7 ± 2.1, 27.0 ± 1.7, 32.0 ± 2.0, 47.0 ± 1.7 and 62.0 ± 4.2 in Chloroform extract. Increase in the concentration of extracts produced higher mortality. The chloroform extract of the leaves of Azardirachta indica and Datura metel were highly effective against the larvae of Culex quinquefasciatus.

2 illus, 29 ref

021454   Hemaprasanth N S;Raghunath M R (Peninsular Aquaculture Div, Central Institute of Freshwater Aquaculture, Hessarghatta Lake, Bangalore-560 089) : Efficacy of nine laboratory chemicals against the free living developmental stages of Lernaea cyprinacea. J Vet Parasitol 2006, 20(1), 37-40.

Efficacy of varying concentrations of potassium permanganate, copper sulphate, potassium dichromate, acriflavin, picric acid, ammonium chloride, sodium chloride, potassium iodide and formaldehyde against the nauplius and copepodid stages of Lernaea cyprinacea were studied. Formaldehyde, picric acid and ammonium chloride are capable of killing the free living developmental stages of Lernaea at the lowest concentrations studied. Formalin and picric acid at 0.025% concentration were able to kill the nauplius stages within 21.00 and 16.00 min and copepodid I stages within 3.25 and 1.50 min of exposure, respectively. Ammonium chloride at 0.05% concentration was effective in killing the copepodid I stages within 9 min of exposure. However, it was observed that copper sulphate, acriflavin, potassium iodide, potassium permanganate and potassium dichromate were effective against the developmental stages at a much higher concentration reported to be toxic to the fish host. The possibility of using ammonium chloride which is commonly used as a fertilizer as a potential chemical in killing the free living stages of Lernaea cyprinacea, thereby disrupting the developmental cycle of the parasite is discussed.

2 tables, 13 ref

021453   Gupta V;Dwivedi D K (Zoology Dep, Lucknow Univ, Lucknow-226 007, Email: deepakdwi2003@yahoo.co.in) : A new species of the genus Hysterolecithoides (treamatoda: Hemiuridae) from the marine fish from Kerala. J appl Biosci 2006, 32(2), 194-5.

Hysterolecithoides yamagutii n. sp. from the intestine of a marine fish Serranus flavoceruleus (Cuv. & Val.) has been described. It differs from the other known species in having only three vitelline masses, in the presence of dermal gland cells in anterior half of the body and in the larger receptaculum seminis.

3 illus 7 ref

021452   Gupta S K;Jha A K;Pal A K;Venkateshwarlu G (Fish Nutrition and Biochemistry Div, Central Institute of Fisheries Education, 7-Bunglows Versova, Mumbai-400 061, Email: venkaticar@rediffmail.com) : Use of natural carotenoids for pigmentation in fishes. Nat Prod Radiance 2007, 6(1), 46-9.

Pigmentation is one of the important quality attributes of the fish for consumer acceptablllty. Carotenoids are responsible for pigmentation of muscle in food fish and skin colour in ornamental fish. As fish is not capable of synthesizing carotenoids de novo there is a need to incorporate carotenoids in the diet of cultured species. Since synthetic carotenoids are known to have deteriorating effects on the environment, there is a great demand for inclusion of natural carotenoids in aqua feed to achieve bright coloration in fish. The possible use of naturally available carotenoid rich ingredients such as microalgal pigments (Chlorella vulgaris Beijer, Haematococcus pluvialis, Dunaliella salina(Dun.) Teodor), yeast extract (Phafia rhodozyma, Xanthophyllomyces dendrorhous, marigold, capsicum, etc. has been discussed in this article.

21 ref

021451   Ghosh S (Zoology Dep, Midnapore College, Midnapore, Paschim Medinipur-721 101) : Effect of Lithium chloride on the endocrine pancreas of domestic pigeon (Columba livia). Asian J expl Sci 2007, 21(2), 325-8.

Deals with the action of lithium chloride (LiCl) on the endocrine pancreas, i.e. Islets of Langerhans regarding histological and certain biochemical parameters. Study revealed that, high dosage of LiCl treatment initiates high mobilization of alpha cell granules,- indicating a storage of the hormone glucagon. It also increased the blood glucose and slightly depleted the liver glycogen of the pigeons. The probable mechanism behind these results was briefly discussed.

021450   Dwivdei S C;Yadav S (Ecotoxicolgoy Lab, Zoology Dep, University of Rajasthan, Jaipur, Rajasthan) : Toxic effects of Ricinus communis seed extracts on various stages of Khapra beetle, Trogoderma granarium everts. Natn J Life Sci 2006, 3(1), 79-82.

Crude seed extract of Ricinus communis in acetone and petrolium ether exhibited toxic effects on the larvae and pupae of Trogoderma granarium. Each extract was tested at four concentrations 25%, 50%, 75% and 100%, along with a control in respective solvent. The acetone extract was found to be more toxic than the petrolium ether extract at highest dose concentration. Percent larval corrected mortality was 76.67% in acetone and 61.40% in petrolium ether. The pupae also showed significant retardation in the development as compared to control. Percent pupal corrected mortality was 72.54% in acetone and 66.67% in petrolium ether extract at 100% dose concentration.

2 tables, 10 ref

021449   Anil Paliwal;Rajeev Dubey (Zoology Dep, Ganjdundwara (P.G.) College, Ganjdundwara District, Etah, Uttar Pradesh) : Description of Collembola (Insecta : Apterygota) collected from sugar cane field at Etah (U.P.). Natn J Life Sci 2006, 3(1), 91-5.

Investigation describe first consolidated record of Collembola insects, involving 8 species, genera of 3 families from sugar cane field at Distt. Etah (U.P.) and its enviorns. The recorded species were Drepanura naginica sp. nov., Lepidocyrtinus noorpuricus sp. nov., Salina etharica sp. nov., Proisotoma /rimalayana, Baijal, Sminthurus ganeshpurensis sp. nov., Sminthurus temurensis sp. nov., Sphyrotheca langpuricus sp. novo and Bourletiella raptis sp. nov.

8 illus, 11 ref

021448   Ambrose D P;Krishnan S S;Ravichandran B (Entomology Research Unit, St. Xavier's College, Palayankottai-627 002, Email: geruxavier@sancharnet.in) : Impact of deltamethrin on the functional response, predatory and mating behaviour of a nontarget harpactorine assassin bug predator Rhynocoris marginatus (Fabricius), (Hemiptera : Reduviidae). J advd Zool 2006, 27(2), 72-8.

Effects of sublethal concentrations of insecticide deltamethrin on the functional response, predatory and mating behaviour were studied in a nontarget harpactorine reduviid predator Rhynocoris marginatus (Fabricius) in the, laboratory (Temp. 30 ± 1°C, RH 75 ± 5%, photoperiod 12 ± 1 hrs). The intensity of abnormal behaviour increased as the concentration of deltamethrin was increased. The insecticide affected the predatory potential i.e., functional response events such as number of prey killed, attack ratio and rate of discovery. Deltamethrin also prolonged the predatory behaviour, inhibited the premating events and quickened the mating events in R. marginatus.

4 tables, 27 ref