03 SEAFDEC External Publications: Recent submissions
Now showing items 1101-1120 of 1743
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Size- and weight-dependent cannibalism in hatchery-bred sea bass (Lates calcarifer Bloch)
(Blackwell Publishing, 1991)The relationship of predator size to maximum prey size, and predator weight to weight of prey consumed among cannibalistic sea bass (Lates calcarifer Bloch) in a hatchery were assessed. Maximum prey size was computed from ... -
Performance of recirculating systems for prawn hatchery and broodstock maturation tanks
(Elsevier, 1991)The potential use of recirculating systems with facilities for waste removal for prawn (Penaeus monodon) hatchery and broodstock maturation tanks was investigated. Recirculating systems evaluated for larval culture tanks ... -
Physico-chemical characteristics and pathogenicity of Vibrio Parahaemolyticus-like bacterium isolated from eye lesions of Chanos chanos (Forsskal) juveniles
(Fisheries Research Society of the Philippines, 1991)Vibrio parahaemolyticus-like bacteria were isolated from eye lesions of milkfish juveniles. The tolerance of the typical isolate to various temperature, pH and salinity levels was tested. Pathogenicity tests done via both ... -
Intensive prawn farming in the Philippines: ecological, social, and economic implications
(Springer Verlag, 1991)The benefits of intensive farming of the giant tiger prawn Penaeus monodon in the Philippines are discussed in relation to the environmental costs. Ecological effects include mangrove conversion into ponds; use of antibiotics ... -
Spermiation response of mature rabbitfish, Siganus guttatus Bloch, to luteinizing hormone-releasing hormone analogue (LHRHa) injection
(Elsevier, 1991)A method to quantify the spermiation response of mature rabbitfish to hormonal therapy is described. Spermatocrit or packed sperm volume was measured after milt loaded in non-heparinized microhematocrit capillary tubes was ... -
Multiple gonadal maturation and re-maturation after hormone-induced spawning in bighead carp Aristichthys nobilis Rich.
(San Carlos Publications, University of San Carlos, 1991)Gonadal maturation and rematuration after hormone-induced spawning in cage-reared female bighead carp Aristichthys nobilis were observed. Percent maturation ranged from 54 to 100% for females and 0 to 40% for males. ... -
Larval rearing of the Philippine freshwater catfish, Clarias macrocephalus (Gunther), fed live zooplankton and artificial diet: A preliminary study
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)A preliminary study was conducted to determine growth and survival of Clarias macrocephalus fed live zooplankton (Artemia or Moina macrocopa ) and/or a dry artificial diet. The specific growth rate over a 14-day rearing ... -
LHRH-a and domperidone-induced oocyte maturation and ovulation in bighead carp, Aristichthys nobilis (Richardson)
(Elsevier, 1991)Effects of intraperitoneal injections of LHRH-a and domperidone (DOM), given singly or in combination at two injections, on oocyte maturation, ovulation and spawning in bighead carp, Aristichthys nobilis, were investigated. ... -
Freshwater cladoceran Moina macrocopa (Strauss) as an alternative live food for rearing sea bass Lates calcarifer (Bloch) fry
(Blackwell Publishing, 1991)Fifteen day old sea bass larvae were acclimated to 10‰ S and fed ad libitum levels of Moina, Artemia or Moina + Artemia (at 1:1 ratio). Fish kept at 32 ‰ S and fed Artemia served as a control. After 20 days, specific growth ... -
Effect of dehulling on the nutritive value of some leguminous seeds as protein sources for tiger prawn, Penaeus monodon, juveniles
(Elsevier, 1991)Feeding experiments were conducted to evaluate the effect of dehulling on the nutritive value of cowpea and rice bean as protein sources for P. monodon juveniles. Diets were prepared by adding legumes to replace 15.6% of ... -
Daily variations in plasma hormone concentrations during the semilunar spawning cycle of the gulf killifish, Fundulus grandis
(Wiley-Liss, 1991)Male and female gulf killifish, Fundulus grandis, were kept in large cages submerged in their natural habitat in the Gulf of Mexico. Gonadosomatic indices (GSI: 100 × gonad weight/body weight) and blood samples were ... -
Selective diversification of aquaculture stocks: A proposal for economically sustainable genetic conservation
(NRC Research Press, 1991)The genetic diversity of aquaculture stocks can be maintained, and their genetic impact on wild stocks minimized, by breeding programmes that deliberately generate genetic diversity. Current animal breeding practices are ... -
Assessment of stocks of a natural Gracilaria population on Panay Island, Philippines
(Walter de Gruyter, 1991)Two peaks in biomass were recorded from natural beds of Gracilaria sp. at Leganes, Iloilo and Batan, Aklan study sites. The major peak occurred in February 1989 for both areas. The minor peak occurred in September 1988 at ... -
Accumulation and tissue distribution of radioiodine (131I) from algal phytoplankton by the freshwater clam Corbicula manilensis
(Springer Verlag, 1991)Radioactive wastes discharged from establishments involved in the use of radioisotopes such as nuclear powered industries, tracer research and nuclear medicine are a potential public health hazard. Such wastes contain ... -
Mercury and selenium interaction: A review
(Elsevier, 1991)This paper reviews studies on mercury and selenium interaction. It includes the effects of selenium on mercury toxicity on the organism, organ/tissue, and subcellular levels. The paper also touches on possible mechanisms ... -
Growth and fatty acid composition of Penaeus monodon juveniles fed various lipids
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)A 4-week feeding trial was conducted to determine the growth and fatty acid composition of Penaeus monodon juveniles fed dietary lipids from different sources. The animal lipid (cod liver oil, pork lard and beef tallow) ... -
Effect of dietary lipid sources on growth, survival and fatty acid composition of sea bass (Lates calcarifer, Bloch) fry
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)Soybean oil, cod liver oil and coconut oil were tested singly or in combination (1:1) as a source of dietary lipid for sea bass fry. Growth and survival rates of fry fed a diet containing cod liver oil and soybean oil (1:1 ... -
Effects of Gusathion A on the survival and shell quality of juvenile Penaeus monodon
(Elsevier, 1991)Juvenile Penaeus monodon (body weight=10–20 g) were exposed to a commonly used organophosphate pesticide, Gusathion A, in ponds for 96 h. Prawns exposed to 1.5–150 ppb Gusathion A had 27–53% shell softening, with a 96 h ... -
Food value of Brachionus plicatilis fed three selected algal species as live food for milkfish, Chanos chanos Forsskal, fry production
(Blackwell Publishing, 1990)The effects of three selected algal species, Tetraselmis tetrahele, Isochrysis galbana and marine Chlorella sp. on the population growth of Brachionus plicatilis was evaluated after 3, 5 and 7 days of culture. The rotifers ... -
The effects on growth and survival of feeding water fleas (Moina macrocopa Straus) and rotifers (Brachionus plicatilis ) to milkfish (Chanos chanos Forsskal) fry
(Society of Israeli Aquaculture and Marine Biotechnology, 1990)The effects of feeding water fleas, Moina macrocopa Straus, and rotifers, Brachionus plicatilis, to milkfish, Chanos chanos Forsskal, fry at different feeding rates and frequencies were investigated. Fry (4.66 mg average ...
