Journal Articles: Recent submissions
Now showing items 1161-1180 of 1294
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Effects of different sex ratios on maturation, fecundity and hatching rates of ablated Penaeus monodon wild stock
(Fisheries Research Society of the Philippines, 1980)The minimum number of males per female that would still ensure high maturation, fecundity and hatching rates in Penaeus monodon broodstock, is determined. Wild stock P. monodon were stocked in 4 m diameter circular tanks ... -
Effect of various salinity levels and stock manipulation methods on the survival of milkfish fry (Chanos chanos) during storage.
(Fisheries Research Society of the Philippines, 1980)The survival and growth of milkfish (Chanos chanos ) fry stored in plastic basins at different salinity levels and stock manipulation methods without aeration and fed with hard-boiled chicken egg yolk over a period of 14 ... -
Effect of substrate types on fecundity and nauplii production of ablated Penaeus monodon Fabricius
(Science and Technology Information Institute, Department of Science and Technology, 1980)The survival, spawning, fecundity, and nauplii production of ablated Penaeus monodon females reared in flow-through broodstock tanks with white coralline and black sand substrates for 62 days, were assessed. Prawns exposed ... -
Ecology on the feeding of milkfish fry and juveniles, Chanos chanos (Forsskal) in the Philippines
(Kagoshima University Research Center for the South Pacific, 1980)An extensive ecological survey was conducted in the Philippines to study the feeding of milkfish, Chanos chanos Forsskal. Types of environments examined included coral reefs, lagoons, mangrove and nipa swamps as well as ... -
Early postmysis stages of the giant tiger prawn, Penaeus monodon Fabricius
(Carcinological Society of Japan, 1980)The morphological development of the early postmysis stages of the giant tiger prawn, Penaeus monodon are described and illustrated using laboratory-reared specimens and wild ones. The first 3 or 4 substages are termed ... -
Culture experiments on the harpacticoid copepod, Tisbintra elongata Mori, and evaluation of that species as a food organism for milkfish larvae
(Faculty of Fisheries, Kagoshima University, 1980)The mass culture of the harpacticoid copepod, Tisbintra elongata, indigenous to Panay Island were conducted, feeding them on several kinds of food materials. Salinity tolerance as physiological parameter was also examined. ... -
A fundamental study on the behavior of milkfish fry for improving the efficiency of traditional fry collecting gear in the Philippines
(Kagoshima University Research Center for the South Pacific, 1980)The reaction of milkfish fry to miving and stationary nets of different meshes and colors in an experimental tank was determined. The underwater visibility of the nets saw measured and the water filtration in a fry-sweeper ... -
Relationship between diet composition and growth rate of the zoeal and mysis stages of Penaeus japonicus Bate
(Fisheries Research Society of the Philippines, 1979)Feeding experiments were conducted on Penaeus japonicus larvae using Chaetoceros gracilis plus Artemia nauplii, an artificially prepared diet (Diet-B), and two commercial feeds (Tapes and mysid meals) in a randomized ... -
Feeding regimes in relation to reproduction and survival of ablated Penaeus monodon
(University of the Philippines at Los Baños, 1979)Pond-reared P. monodon were stocked in four 12-cu m flowthrough maturation tanks at 25 males and 50 females per tank; females were unilaterally ablated. The combinations of feeds for the morning and afternoon rations were ... -
Growth and survival of Penaeus monodon postlarvae fed shrimp head meal and fish meal as primary animal sources of protein
(Fisheries Research Society of the Philippines, 1979)Penaeus monodon postlarvae with mean weights of 2 to 3 g were fed shrimp head meal (Diet B), fish meal (Diet C), mussel (Diet E), a combination of equal amounts of shrimp head meal and fish meal (Diet A) or one part shrimp ... -
On the new species of Penaeus (Crustacea, Decapoda: Penaeidae) from North Borneo
(Carcinological Society of Japan, 1979)A new species of penaeid prawn, Penaeus silasi from North Borneo is described in detail and compared with the closely related species such as P. indicus, P. merguiensis and P. penicillatus. The new species is characterized ... -
On a new species of Trachypenaeus (Crustacea, Decapoda: Penaeidae) from the Philippines, with notes on related species
(Carcinological Society of Japan, 1979)Trachypenaeus villaluzi a new species of penaeid prawn from the Philippines is described in detail and compared with the related species. The new species is characterized by the following features : Mastigobranchia are ... -
Effects of crude, semipurified, and purified starch of sago (Metroxylon sagu Rottb.) on the water stability of pelleted shrimp diets
(Fisheries Research Society of the Philippines, 1979)Three isonitrogenous, isocaloric practical-type diets with purified, semipurified and crude starch from sago palm as binders, were pelleted through a 2-mm diameter die in a Hobart meat grinder, steamed for 5 min at 85 to ... -
Results of drift card experiments and considerations on the movement of milkfish eggs and larvae in the northern Sulu Sea
(Fisheries Research Society of the Philippines, 1979)For a period of one year beginning December 1977, drift card experiments were conducted off the western and southwestern coasts of Panay Island to determine the surface currents in the area. Of a total 2,384 drift cards ... -
Notes on Lagenidium from larvae of Penaeus monodon Fabricius. I. Isolation and culture in artificial media
(Fisheries Research Society of the Philippines, 1979)The fungus, tentatively identified as Lagenidium , which attacks the nauplii to postlarval stages of P. monodon , has recently been isolated and cultured from infected larvae under laboratory conditions, using several kinds ... -
Studies on the fungal diseases in crustaceans. I. Lagenidium scyllae sp. nov. isolated from cultivated ova and larvae of the mangrove crab (Scylla serrata)
(Mycological Society of Japan, 1979)Lagenidium scyllae , a marine mastigomycete from the ova and larvae of the mangrove crab, is described and illustrated as new. The fungus grew at a temperature range of 16-42 C, with an optimum at 22.5-31.8 C. It grew well ... -
Settlement preference of the brown mussel, Modiolus metcalfei, Hanley and its implication on the aquaculture potential of the species
(Fisheries Research Society of the Philippines, 1978)A study on the settlement preference of M. metcalfei was made in Banate Bay, Iloilo, using four types of materials as spat collectors. During the six-month study period, not a single Modiolus spat was found in any of the ... -
Preliminary studies on growth and survival of Penaeus japonicus postlarvae fed with Tapes philippinarum and commercial formula feed.
(Fisheries Research Society of the Philippines, 1978)The postlarvae were maintained in 5-l round plastic aquaria and provided with aeration for a 28-day feeding period. Highest survival rate of 100% was obtained when the postlarvae were fed with Diet-B. Growth, in terms of ... -
Mass production in concrete tanks of sugpo Penaeus monodon Fabricius spawners by eyestalk ablation
(Fisheries Research Society of the Philippines, 1978)Two batches of 196 and 181 P. monodon females were ablated on one eyestalk in March and July 1977, respectively, and a control batch of 180 unablated females was stocked in July 1977. The females were stocked with males ... -
Present prawn culture in the Philippines.
(Bureau of Fisheries and Aquatic Resources, 1978)This paper discusses present prawn culture practices in the Philippines, as well as the experiments which are conducted at the SEAFDEC Aquaculture Department by reviewing production of fry, production of juveniles in nursery ...
