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Ascorbic acid sulfate sulfohydrolase (C2 sulfatase): the modulator of cellular levels of L-ascorbic acid in rainbow trout.
(National Academy of Sciences of the United States of America, 1982)
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
(University of the Philippines at Los Baños, 1982)
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 ...
Survival, maturation, fecundity and hatching rates of unablated and ablated Penaeus indicus H.M. Edwards from brackishwater ponds
(The Marine Biological Association of India, 1982)
Penaeus indicus H. M. Edwards harvested after three months of rearing in brackishwater ponds and averaging 6.9 g for females and 5.6 g for males were stocked in two 12 cu m flowthrough ferrocement tanks at 240 females and ...
Series: Developments in Aquaculture and Fisheries Science, Vol. 10
Status of Macrobrachium research at Binangonan Research Station (SEAFDEC, Philippines)
(Elsevier Scientific Publishing Company, 1982)
The freshwater prawn Macrobrachium abounds in the rivers, lakes and estuaries of the Philippines. At SEAFDEC, Binangonan Research Station, a few preliminary studies have been conducted on Macrobrachium sp. and M. rosenbergii ...
Biology, use and culture of Artemia
(South China Sea Fisheries Development and Coordinating Programme, 1982)
Seasonal variation in food and feeding of Penaeus monodon Fabricius (Decapoda, Natantia)
(E.J. Brill, 1982)
A preliminary study on feeding habits of P. monodon F. (cf. Marte, 1980) indicated seasonal variations in feeding in this species. Similar observations have been reported for P. aztecus Ives and P. duorarum Burkenroad. The ...
Gill lesions associated with acute exposure to ammonia.
(University of the Philippines, 1982)
The histopathological effects of the 96 hr LC<sub>50</sub> at 20.65 ppm NH<sub>3</sub>-N on the gills of milkfish fingerlings were examined qualitatively. Lesions observed were hypertrophy, hyperplasia, fusion of the ...
Status of Macrobrachium farming in the Philippines
(South China Sea Fisheries Development and Coordinating Programme, 1982)
Research on larval rearing of Macrobrachium is reviewed. The future of prawn culture is discussed.
Yeasts as food organisms in aquaculture
(South China Sea Fisheries Development and Coordinating Programme, 1982)
The use of yeast as feed in aquaculture is discussed. It has been successfully used as feed for Penaeus japonicus larvae, for Brachionus plicatilis mass culture, and for the improvement of nutritional quality of Tigriopus ...
Studies on the digestive proteases of the milkfish Chanos chanos
(Springer, 1982)
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 ...