AQD Conference Proceedings: Recent submissions
181-200 / 298
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Mangrove conversion and brackishwater pond culture in the Philippines
(Asian Wetland Bureau; Protected Areas and Wildlife Bureau, 1992)Around 50% of mangrove loss in the Philippines can be traced to brackishwater pond construction. The decrease in mangroves from 450 000 ha in 1920 to 132 500 ha in 1990 has been accompanied by expansion of culture ponds ... -
Aeromonas hydrophila in the epizootic ulcerative syndrome (EUS) of snakehead, Ophicephalus striatus, and catfish, Clarias batrachus: quantitative estimation in natural infection and experimental induction of dermo-muscular necrotic lesion
(1992)Snakehead (Ophicephalus striatus) and catfish (Clarias batraclus) with the Epizootic Ulcerative Syndrome (EUS) were sampled for bacteria. Total bacterial counts of skin and muscle/dermal lesions revealed mean colony forming ... -
The use of chemotherapeutic agents in aquaculture in the Philippines
(Asian Fisheries Society, Fish Health Section, 1992)Chemotherapeutants are widely used to treat diseases of fish, specifically shrimp and aquarium fishes in the Philippines. The most commonly treated diseases are luminous vibriosis, filamentous bacterial disease, shell ... -
Toxicity of rotenone to milkfish, Chanos chanos, and tilapia, Oreochromis mossambicus
(Asian Fisheries Society, Fish Health Section, 1992)Milkfish (Chanos canos) and tilapia (Oreochromis mossambicus) were exposed to varying concentrations of rotenone (95-98% active ingredient) to determine the median lethal concentration (LC50). The 1, 6, 12, 24, ... -
Modular method of rearing milkfish with artificial feed.
(Asian Fisheries Society. AFS Spec. Publ. 5, 1991)The study was conducted to determine the effectiveness of a practical diet, the profitability of feeding during 2 seasons, and the effect of a diet with coconut oil on the fatty acid profile of milkfish (Chanos chanos ) ... -
Growth response and carcass composition of red tilapia fry fed diets with varying protein levels and protein to energy ratios
(Asian Fisheries Society, 1991)An 8-week feeding experiment was conducted with red tilapia (Oreochromis ) fry of 0.160 plus or minus 0.035 g initial weight. Twelve diets of 4 protein levels (25, 30, 35 and 40%) and 3 protein to energy (P/E) ratios (111, ... -
Survival of yolk-sac larvae of grouper (Epinephelus suillus) under simulated transport conditions.
(European Aquaculture Society. EAS Special Publication No. 15, 1991)Transport of live fish is a routine activity in aquaculture. Various transport techniques have been reported by Berka. Transport of grouper eggs (Epinephelus suillus) between fisheries stations in Thailand is being conducted. ... -
Mariculture techniques for Epinephelus sp. in the Philippines
(Philippine Council for Aquatic and Marine Research and Development; French Embassy in the Philippines, 1991)This paper reviews the status of different techniques that are presently practiced for Ephinephelus sp. culture in the Philippines. Constraints and problems encountered as well as possible solutions are also discussed. -
Microbound larval feed as supplement to live food for milkfish (Chanos chanos Forsskal) larvae
(European Aquaculture Society, 1991)Highly variable results using Brachionus as food for milkfish (Chanos chanos) larvae may be related to: (1) relatively low content of highly unsaturated fatty acids (HUFAs) in Brachionus and (2) inability of first feeding ... -
An artificial diet for larval rabbitfish Siganus guttatus Bloch.
(Asian Fisheries Society. AFS Spec. Publ. 5, 1991)A 21-day feeding trial was conducted to determine growth, survival and metamorphosis of larval rabbitfish (Siganus guttatus ) fed artificial diets containing approximately 40, 45, 50 and 55% crude protein. Artemia nauplii ... -
Survival of newly-hatched larvae of Epinephelus malabaricus at different salinity levels.
(European Aquaculture Society. EAS Special Publication No. 15, 1991)The development of an appropriate hatchery culture-technique for grouper Epinephelus malabaricus requires knowledge on the biology of this species. The environmental requirements, a critical aspect of biology, have, however, ... -
Defatted soybean meal and Leucaena leaf meal as protein sources in diets for Penaeus monodon juveniles
(Asian Fisheries Society, 1990)Penaeus monodon juveniles, mean weight 0.38 g, were fed 12 practical diets with 30, 20 or 16% Peruvian fish meal, 15 or 35% defatted soybean meal (DSM), 10% Leucaena leucocephala , leaf meal (LM), and 15% shrimp meal with ... -
Growth and survival of Oreochromis niloticus, O. mossambicus and their F1 hybrids at various salinities
(Asian Fisheries Society, 1990)Growth and survival of Oreochromis niloticus, O. mossambicus, and their F1 hybrids were studied at various salinities (0-32 ppt) in net cages inside 12-tonne concrete tanks after acclimation. Growth, measured ... -
Milkfish fry collection and handling
(Food and Agriculture Organization of the United Nations, South Pacific Aquaculture Development Project, 1990)Milkfish fry can be collected in almost all the coastal waters of the tropical Indo-Pacific region. The fry season occurs at different times of the year in various sections of the species' geographical range. The season ... -
Mineral requirements of Penaeids
(Institut Francais de Recherche pour l'Exploitation de la Mer, 1990)Marine shrimps absorb minerals from their aquatic environment aside from the minerals that come from the food they eat. Thus, the dietary requirement of shrimps for certain minerals will depend on the amounts and availability ... -
Bacterial exoskeletal lesions of the tiger prawn Penaeus monodon
(Asian Fisheries Society, 1990)Tank- and pond-reared Penaeus monodon with exoskeletal lesions were examined. The incidence rate was up to 36% for broodstock in concrete tanks and to 20% for pond-reared prawns. The increase in disease incidence was related ... -
Hormone-induced spawning of cultured tropical finfishes
(IFREMER, 1990)Commercially important tropical freshwater and marine finfishes are commonly spawned with pituitary homogenate, human chorionic gonadotropin (HCG) and semi-purified fish gonadotropins. These preparations are often administered ... -
Heterogeneity in Philippine milkfish populations
(Asian Fisheries Society, 1990)Twelve milkfish (Chanos chanos ) populations from 6 coastal areas in the Philippines, collected at the fry stage and reared until fingerling size, were analysed for electrophoretic variation at 28 presumptive loci. Seven ... -
Fisheries biology of milkfish (Chanos chanos Forskal)
(Food and Agriculture Organization of the United Nations, South Pacific Aquaculture Development Project, 1990)Milkfish (Chanos chanos Forskal) is one of the most important food fish species in the world. In Indonesia, Taiwan and the Philippines, more than a quarter of a million tonnes of milkfish are harvested annually in brackish ... -
Survival of larval milkfish, Chanos chanos, during changeover from endogenous to exogenous energy sources
(Asian Fisheries Society, 1990)Survival of laboratory-reared larvae of milkfish, Chanos chanos , during transition from the prelarval to postlarval stages was examined in relation to the changeover of energy sources. The prelarval and early postlarval ...
