Now showing items 1-10 of 338
Early development of Crassostrea iredalei (Faustino, 1932) (Bivalvia: Ostreidae), with notes on the structure of the larval hinge
- Veliger, 1986 - California Malacozoological Society, Inc.
Larvae of the oyster Crassostrea iredalei were reared in the laboratory from eggs through settlement. The oysters were induced to spawn by increasing the temperature by 5-10°C and sometimes by adding stripped oyster sperm ...
Studies on the digestive proteases of the milkfish Chanos chanos
- Marine Biology, 1982 - Springer
The protease activity of crude extracts from various organs of the digestive tract of two groups of milkfish was determined. One group (Sample A) derived their food from ponds that had predominantly unicellular algae while ...
Effect of different stocking combinations on growth, production and survival of milkfish (Chanos chanos Forskal) and prawn (Penaeus monodon Fabricius) in polyculture in brackishwater ponds
- Aquaculture, 1981 - Elsevier
Milkfish (Chanos chanos) and prawn (Penaeus monodon) were stocked in 500 m2 earthen ponds from 12 November 1978 to 15 March 1979 at the following combinations: 2000 milkfish fingerlings per ha (treatment I); 2000 milkfish ...
In vitro effect of fungicides on hyphal growth and sporogenesis of Lagenidium spp. isolated from Penaeus monodon larvae and Scylla serrata eggs.
- Journal of Fish Diseases, 1982 - Blackwell
The sensitivity of Lagenidium spp. isolated from Penaeus monodon and Scylla serrata to 34 antimycotic compounds was determined. Mycostatic effects were evaluated from observations of chemicals on the development of vesicles, ...
Influence of nutrition on the hepatocytes of Chanos chanos (Chanidae: Teleostei)
- Zoologischer Anzeiger, 1984 - Elsevier
The hepatocytes of milkfish (C. chanos) fry and fingerlings offered a variety of diets differ considerably as was shown by means of transmission electron microscopy. For fry it was shown that a 7 day starvation period ...
Histopathology of microsporidian infection in white prawn, Penaeus merguiensis de Man, 1888.
- Natural and Applied Science Bulletin, 1982 - University of the Philippines
Different stages of the white prawn, Penaeus merguiensis de Man, were examined for microsporidian infection. The parasite was found only in adult female prawns exhibiting white instead of the normal olive-green ovaries. ...
Ascorbic acid sulfate sulfohydrolase (C2 sulfatase): the modulator of cellular levels of L-ascorbic acid in rainbow trout.
- Proceedings of the National Academy of Sciences, 1982 - National Academy of Sciences of the United States of America
The enzyme L-ascorbic acid 2-sulfate sulfohydrolase (C2 sulfatase) was purified from rainbow trout liver. The enzyme catalyzes the hydrolysis of L-ascorbic acid 2-sulfate and has a pH optimum at 6.0. It has a molecular ...
Vertical diurnal migration of Daphnia cucculata and Eudiaptomus graciloides in eutrophic Frederiksborg Castle Lake, Denmark.
- Kalikasan, The Journal of Philippine Biology, 1982 - University of the Philippines at Los Baños
In euthrophic Frederiksborg Castle Lake, Berg & Nygaard were the first to study vertical migration. They obtained water samples at various time intervals over several days and concluded that the bulk of the population of ...
Transition from endogenous to exogenous nutrition sources in larval rabbitfish Siganus guttatus
- Nippon Suisan Gakkaishi, 1988 - Japanese Society of Fisheries Science
The early larval development of Siganus guttatus was studied with emphasis on the transition from endogenous to exogenous feeding. Three rearing trials were conducted as follows: 1) rearing in a 5 ton concrete tank at ...
Limnological features of Lake Buluan: Preliminary findings and observations
- Fisheries Research Journal of the Philippines, 1983 - Fisheries Research Society of the Philippines
A limnological survey of Lake Buluan in Mindanao was conducted to evaluate its potentials for fishpen and fish cage culture. The lake was found to be shallow and highly productive, with the major physicochemical and ...