Journal of Ecophysiology and Occupational Health

Kumari Aprajita ¹, A. K. Pandey ¹, R. Singh ², U. K. Chauhan ³

Affiliations
1 Department of Fish Conservation Division, National Bureau of Fish Genetic Resources Lucknow – (UP) 226002, IN
2 Department of Fish Health and Management, National Bureau of Fish Genetic Resources Lucknow – (UP) 226002, IN
3 Department of Environmental Biology and Biotechnology A.P.S University, Rewa (M.P) – 486003, IN

Abstract

Due to the growing requirement of high protein food from aquatic sources and to find a substitute for fisheries, prawn culture is the major restricted access in crustacean aquaculture industry. It is imperative to understand the physiological mechanisms involved in seed production of the candidate species. This review was carried out on studies of endocrine regulation of reproduction in giant fresh prawn Macro brachium rosenbergii. This type of work seems to be a practical substitute to eyestalk ablation to induce spawning. Since it is a commercially important crustacean, crustacean aquaculture industry and these hormonal manipulation like neurotransmitter and vertebrate type sex hormone indicted the possibility of introducing a new strategies for ovarian maturation in aquaculture.

Keywords

Crustacean, Neurotransmitters, Ovary, Vertebrate Type Steroids

Full Text

   

B. G. Kulkarni ¹, Shirley Agwuocha ², A. K. Pandey ³

Affiliations
1 Department of Zoology, Institute of Science, 15 Madam Cama Road, Mumbai-400 032, IN
2 Department of Zoology, Thakur College of Science and Commerce, Kandivali (East), Mumbai-400 101, IN
3 National Bureau of Fish Genetic Resources, Canal Ring Road, Lucknow-226 002, IN

Abstract

Gafrarium divaricatum (Gmelin) was exposed to sublethal concentrations of xylene (4.25 and 8.50 mg/l), benzene (4.35 and 8.70 mg/l) and gear oil-WSF (1 and 2%) for 30 days. There was a decline in condition index of the treated clams while moisture content showed an increase on day 30. Glycogen content of hepatopancreas of the clams treated with the pollutants registered an initial increase on day 4 whereas the level declined in gill and adductor muscle during this period while this constituent in hepatopancreas, gill and adductor muscle of the treated clams recorded drastic decline by day 30. Lactic acid, pyruvic acid and protein content in the three tissues increased significantly on day 4 and 30 of the treatment. It appears that the clams resorts to anaerobic mode of respiration under the pollution stress induced due to prolonged chronic exposure of xylene, benzene and gear oil-WSF.

Keywords

Biochemical Parameters, Xylene, Benzene, Gear Oil-WSF, Gafrarium divaricatum.

Full Text

   

Sandhya S. Kupekar ¹, B. G. Kulkarni ², A. K. Pandey ³

Affiliations
1 Department of Zoology, Mahatma Phule A. S. C. College, Panvel-410206, IN
2 Department of Zoology, Institute of Science, 15 Madam Cama Road, Mumbai-400032, IN
3 National Bureau of Fish Genetic Resources, Canal Ring Road, Lucknow-226002, IN

Abstract

Bioaccumulation of five heavy metals (Cu, Zn, Mn, Fe, Pb) in the gastropods, Bursa spinosa and Nerita oryzarum from three stations along Uran coast (near Mumbai) was studied during 2005-2007.The coast receives discharges from the heavily industrialized and highly populated settlements. Bioaccumulation of heavy metals in Bursa spinosa followed the order Cu>Fe>Zn>Cd>Mn>Pb and Nerita oryzarum Fe>Cu>Zn>Mn>Cd>Pb. Seasonal variations in accumulation in these heavy metals in soft tissue of the gastropods were also noticed. Though the observed concentration of heavy metals in the bivalves were below the recommended limits, environmental surveillance of the creek is required for contaminant-free gastropods.

Keywords

Bioaccumulation, Heavy Metals, Nerita oryzarum, Bursa spinosa, Uran Coast.

Full Text