Variations in the Enzyme Activity of Gills and Hemolymph in Cypermethrin, a Pesticide Treated Fresh Water Female Field Crab, Spiralothelphusa hydrodroma (Herbst)

Cypermethrin Induced Toxicity to Phosphatases and Dehydrogenases in Gills and Hemolymph of Fresh Water Crab, Spiralothelphusa hydrodroma(Herbst)

Spiralothelphusa gibberosa, a new freshwater crab (Brachyura: Gecarcinucidae) from Thrissur district, Kerala, India.

A new species of freshwater crab, Spiralothelphusa gibberosa n. sp. is described from rice fields near Kizhoor in Thrissur district of Kerala in southern India. The new species is easily differentiated from its congeners by its first male pleopod (G1), which has a long, less strongly twisted terminal segment and distal portion of subterminal segment in addition to a setose hump on the outer mar...

Proximate Composition and Mineral Contents of Freshwater Crab Spiralothelphusa hydrodroma (Herbst, 1794) from Parangipettai, South East Coast of India

The fresh water crabs is significantly an important for biological role in the food webs. More than 6,700 known species of Brachyuran crabs and over 1,300 true freshwater crabs were identified along in the world. The true freshwater crabs are fully adopted for freshwater, semi-terrestrial or terrestrial appears of life and has with the ability of characterization of complete the life cycle enti...

Influence of Cypermethrin on DNA and RNA Content in Different Organs of Fresh Water Fish Cyprinus carpio

In this study, freshwater fish Cyprinus carpio was exposed to sub lethal concentration of synthetic pyrethroids insecticide cypermethrin to evaluate the impact on nucleic acids in different organs. Fishes were exposed to sub lethal concentration (1/10th of LC50 value) of cypermethrin for three different durations, 7, 14 and 21 days. In seven day exposed fishes, DN...

On the mode of action of methionine enkephalin, FK 33-824 and naloxone in regulating the hemolymph glucose level in the fresh water field crab Oziotelphusa senex senex.

The possible involvement of opioid system in the regulation of hemolymph glucose level in the fresh water crab Oziotelphusa senex senex Fabricius, was investigated. Opioid agonist and antagonist was also used in addition to methionine-enkephalin itself. Injection of the opioid, methionine-enkephalin and FK 33-824 significantly elevated hemolymph glucose level. In contrast, injection of naloxone...