Articles written in Proceedings – Animal Sciences
Volume 90 Issue 2 March 1981 pp 225-236
The development of the larvae of the marine hermit crab
Volume 91 Issue 1 January 1982 pp 39-44
In the laboratory, under choice situation,
Volume 93 Issue 2 March 1984 pp 107-114
A survey was conducted on the incidence of diseases, by superficial appearance, in common fish species of Portonovo coast. Approximately 46,484 marine and 22,150 estuarine fishes were examined. Marine fishes alone were observed with fin rot and neoplasm while estuarine fishes were free from such abnormalities. Fin rot was recorded among seventeen species of marine fish and tumour in cat fish. Fin necrosis accompanied with haemorrhage, ulceration and loss of scales was consistent external sign of the disease. Species of cat fish, grunter, queen fish and pikes were mostly affected by fin rot at high level and the maximum peak was recorded in April. Cat fishes alone had tumour. More than 80% of the tumour bearing specimen had fin necrosis.
Volume 95 Issue 5 October 1986 pp 515-524
The 96 h LC50 value for zinc was 100 ppb. Larvae reared in 7 sublethal (1, 5, 10, 30, 50, 70, 90 ppb) and 96 h LC50 level concentrations (100 ppb) showed survival rates more than 10%, thus perfectly fitting in with definition of chronic concentration. Survival rate of larvae decreased with increase in test concentration but in the different chronic test concentrations, the overall time required for the completion of zoeal development did not differ significantly from that of control.
Volume 96 Issue 4 July 1987 pp 389-393