03 SEAFDEC External Publications: Recent submissions
1201-1220 / 1743
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Mercury levels in the sediment, water, and selected finfishes of Laguna Lake, the Philippines
(Elsevier, 1990)Monthly samples of sediment, water and commercially important species of fish, primarily Oreochromis niloticus and Chanos chanos , plus a few other species, were collected from the West Bay area of Laguna Lake, The Philippines ... -
Cage culture of Oreochromis aureus and Oreochromis niloticus hybrids in Laguna Lake, Philippines
(Taylor & Francis, 1988)A reciprocal cross of male Oreochromis aureus and female Oreochromis niloticus were made to produce the hybrids stocked in cages in Laguna Lake, Philippines with and without feeding. The growth rates of the hybrids from ... -
Quantitative lysine requirement of milkfish (Chanos chanos) juveniles
(Elsevier, 1990)A feeding experiment was conducted to determine the quantitative dietary requirement of milkfish juveniles for lysine. Milkfish (Chanoschanos Forsskal) of mean weight 5.92±0.14 g were fed diets containing 7.0, 11.0, 15.0, ... -
Uptake and elimination of inorganic mercury and selenium by minnows Phoxinus phoxinus
(Elsevier, 1988)Minnows were kept in aquaria containing filtered water dosed with measured amounts of mercury as mercuric chloride and selenium as sodium selenate. Fishes exposed to selenium in combination with mercury showed significantly ... -
Acute toxicity of potassium permanganate to milkfish fingerlings, Chanos chanos
(Springer Verlag, 1989)Potassium permanganate (KMnO4) is a strong oxidizing agent and is commonly used in aquatic systems to improve available oxygen, treat infectious diseases and parasites, detoxify fish poisons, and control algae. ... -
Studies on the digestive lipases of milkfish, Chanos chanos
(Elsevier, 1990)Milkfish grown on two natural foods were examined to determine the distribution pattern of the digestive lipases along the digestive tract and to identify the optimum condition for lipase activity. One food consisted of a ... -
The effect of dietary protein-energy levels on growth and metabolism of milkfish (Chanos chanos Forsskal)
(Elsevier, 1988)- Groups of milkfish juveniles (mean weight, 2.8 g) were fed diets containing white fishmeal and gelatin with varying protein-energy to total metabolizable energy (PE:TME) ratios.
- Amino acids were incorporated ...
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Growth and survival of bighead carp (Aristichthys nobilis) fry fed at different intake levels and feeding frequencies
(Elsevier, 1988)This study was conducted to assess the effect of different levels of dietary intake and feeding frequencies on growth and survival of bigheadcarp, Aristichthys nobilis, fry. The feeding rates consisted of 10%, 20%, and 30% ... -
Tolerance level and histopathological response of milkfish (Chanos chanos) fingerlings to formalin
(Elsevier, 1989)Static 96-h bioassays were conducted on milkfish (Chanos chanos ) fingerlings with formalin at concentrations ranging from 50 to 500 ppm. The 24-, 48-, 72-, and 96-h median lethal concentration values (LC50) were 322, 260, ... -
HCG and LHRH-A induced spawning in bighead carp Aristichthys nobilis Rich. reared in floating cages in Laguna de Bay
(San Carlos Publications, University of San Carlos, 1989)Hormone-induction of spawning in bighead carp Aristichthys nobilis Rich. by single or double intraperitoneal injection with varying combined dosages of HCG and LHRH-A was conducted. Fish were spawned successfully following ... -
Apparent digestibility of diets with various carbohydrate levels and the growth response of Penaeus monodon
(Elsevier, 1991)The digestibility of four isonitrogenous practical diets (40% crude protein) containing different levels (5%, 15%, 25% and 35%) of gelatinized breadflour as carbohydrate source were determined for P. monodon (average weight ... -
Arginine and threonine requirements of milkfish (Chanos chanos Forsskal) juveniles
(Elsevier, 1991)Growth studies were conducted with milkfish (Chanos chanos Forsskal) juveniles to determine the quantitative requirements for arginine and threonine. The amino-acid test diets (40% crude protein) contained casein and gelatin ... -
Effect of tagging on maturation and survival of ablated Penaeus monodon in painted and unpainted tanks
(San Carlos Publications, University of San Carlos, 1989)A study was conducted to determine the effects of tags and tank color on reproductive performance and survival of pond-reared Penaeus monodon after eyestalk ablation. In 1986, the best over-all reproductive performance was ... -
Large scale hatchery production of Penaeus monodon using natural food and artificial diets
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)Natural food in combination with either SEAFDEC formulated or other commercial larvae diets was tested for large scale production of Penaeus monodon postlarvae. Two trials of 3 treatments each, 2 replications of each ... -
Increasing milkfish (Chanos chanos) yields in brackishwater ponds through increased stocking rates and supplementary feeding
(Asian Fisheries Society, 1990)Brackishwater milkfish culture in the Philippines is normally practiced at fish stocking rates of 2,000-3,000 ha-1 with fertilizers as the sole nutrient input. Supplementary feeding is not common. We stocked two ... -
Lipid and fatty acid composition of brackishwater- and freshwater-reared milkfish (Chanos chanos Forskal)
(Elsevier, 1991)Lipid and fatty acid composition of the various sections of brackishwater- and freshwater-reared milkfish were determined by chromatographic methods. Lipids consisted mainly of the neutral type, which in turn was composed ... -
Occurrence and pathology of Penaeus monodon baculovirus infection in hatcheries and ponds in the Philippines
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)Samples from Penaeus monodon hatcheries (2-3 day old larvae or Zoea 1 to 34 day old post larvae or PL34) and ponds (15 to 159 days old in the pond) were histologically examined for the presence of eosinophilic ... -
Induced spawning of rabbitfish, Siganus guttatus (Bloch) using human chorionic gonadotropin (HCG)
(Elsevier, 1991)A positive spawning response of rabbitfish females to two injections of HCG at 2 I.U./g BW given 24 h apart was observed. The latency period after hormone injection was inversely related to the initial oocyte size. Minimum ... -
Economic analysis of an integrated milkfish broodstock and hatchery operation as a public enterprise
(Elsevier, 1991)The National Bangus (Milkfish) Breeding Program of the Philippines, which was launched by the Philippine government in 1981, had succeeded in spawning milkfish in captivity and in rearing the eggs to fry that were stockable ... -
Isolation and characterization of vitellin from the ovary of Penaeus monodon
(International Society of Invertebrate Reproduction and Development, 1990)Female-specific protein (FSP, vitellogenin) in Penaeus monodon hemolymph and its related ovarian protein (vitellin, lipovitellin) were identified and characterized using electrophoretical and immunological procedures. The ...
