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Now showing items 111-120 of 125
In vitro effects of fungicides on the fungus Haliphthoros philippinensis
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1981)
Pure cultures of Haliphthoros philippinensis, isolated from infected Penaeus monodon larvae, were exposed for 24 hours to varying concentrations of antifungal agents. The efficiency of each agent to inhibit sporulation and ...
Culture of grey mullet, Mugil cephalus, Linnaeus in brackishwater ponds at two stocking densities
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1981)
The culture potential of hatchery-produced grey mullet (Mugil cephalus , Linnaeus) stocked with average weight of 3.7 g and at 2,500 (treatment I) and 3,000 (treatment II) fingerlings/ha in six 350m brackishwater ponds ...
Effects of increased stocking density and supplemental feeding on the production of milkfish fingerlings
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1981)
Experiments were conducted to determine the effects of increased stocking density and supplemental feeding on survival and growth of milkfish (Chanos chanos) fry to fingerling stage and also to evaluate the profitability ...
A simple method of tagging prawns
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
The recognition of individual animals is crucial to many aspects of research. Prawns (Penaeus monodon) present unique difficulties in this respect since they molt regularly. Thus, almost all tagging and marking methods ...
The propagation of the mud crab Scylla serrata (F.) de Haan
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
The mud crab Scylla serrata is an important commercial species found in many brackish areas in the Philippines. During spawning and hatching, the berried females migrate to the sea. Seeds for pond stocking are obtained ...
Organic pollution in culture water resulting from excess feed and metabolite buildup
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
Penaeus monodon postlarvae were subjected to increasing feed concentrations and their growth and survival rates were recorded. Measurements were made of dissolved organic matter, and ammonia and nitrite-nitrogen concentrations. ...
The biology and control of Caligus sp., an ectoparasite of the adult milkfish Chanos chanos Forskal
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
One unidentified species of copepod belonging to the genus Caligus of the family Caligidae was found to infest the adult milkfish broodstock. To control the parasites infesting the adult milkfish, tests were made using the ...
Growth and survival rates of hatchery-produced and wild milkfish fry grown to fingerling size in earthen nursery ponds
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1980)
Growth and survival rates of hatchery-produced and wild milkfish (Chanos chanos) fry grown to fingerling size were compared. Data show no significant difference between the 2 fry. At a recommended stocking density of 30 ...
Fry to fingerling production of Tilapia nilotica in aquaria using phytoplankton as natural feed
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1981)
Overall results of the study indicate that the availability of high concentrations of phyloplankton in the rearing medium favoured growth of T. nilotica fry to fingerling.
Effect of feeding rate on the survival and growth of milkfish (Chanos chanos) fry in a controlled environment
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)
The optimum daily feed allowance varies with species, age, size, frequency of feeding, culture procedures, quality of feed and water quality. This experiment indicated that with a diet containing 40% protein and 3,450 kcal ...