SEAFDEC Institutional Repository: Recent submissions
Now showing items 5101-5120 of 5909
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The optomotor reaction of milkfish larvae and juveniles
(Japanese Society of Fisheries Science, 1980)The development of the optomotor reaction (OMR) in milkfish (Chanos chanos), from the larval, through the metamorphic, to the juvenile stage was observed. The period from the appearance of the pelvic fins until the complete ... -
Larval and postlarval development of the window pane shell, Placuna placenta Linnaeus, (Bivalvia: Placunidae) with a discussion on its natural settlement.
(California Malacozoological Society, Inc., 1980)Stages of development of P. placenta from the straight-hinge veliger to the adult are described. Mature larvae metamorphose at lengths from 220-230 m. Larvae probably attach byssally to the water surface at metamorphosis ... -
On the visual feeding of milkfish larvae and juveniles in captivity
(The Japanese Society of Scientific Fisheries, 1980)Feeding of milkfish (Chanos chanos) larvae and juveniles on Artemia nauplii in captivity was observed. The retinae of the larvae were observed histologically. Milkfish larvae could not take food in the dark. The juveniles ... -
A comparison of macronutrient levels in green mussel (Perna viridis) and brown mussel (Modiolus metcalfei Hanley)
(The Science Society of Thailand, 1980)Two species of mussel from Panay Island, Philippines, have been analyzed for moisture, crude protein, crude fat, ash, carbohydrated, crude fibre and minerals (calcium and phosphrus). Results showed that the brown mussel ... -
Effects of exogenous hormone injections on milt consistency in newly caught, wild milkfish
(University of the Philippines at Los Baños, 1980)The study was conducted to study the effects of single injections of Human Chorionic Gonadotropin (HCG) (Ayerst Laboratories, Inc) and Durandron Forte 250, a long-acting androgen preparation (N.V. Organon Oss, Holland), ... -
Studies on the egg quality of Penaeus monodon Fabricius, based on morphology and hatching rates
(Elsevier, 1981)Eggs of Penaeus monodon are classified into five different types on the basis of morphological criteria and hatching rates — A1 eggs undergo normal development with 58% hatching rate; A2 eggs show delayed and/or abnormal ... -
Note: larvae of decapod crustacea of the Philippines. II. Laboratory-hatched first zoea of box crab
(College of Agriculture and Central Experiment Station, University of the Philippines at Los Baños, 1976)This is the first report in the world on the characters of the first zoea of Calappa philargius under laboratory conditions. The zoea has a rostral, a dorsal and a pair of lateral spines on the carapace. The average length ... -
Larvae of decapod crustacea of the Philippines - I. The zoeal stages of a swimming crab, Charybdis cruciata (Herbst) reared in the laboratory
(The Japanese Society of Scientific Fisheries, 1976)Six zoeal stages of Charybdis cruciata (Herbst) which are reared in the laboratory, are described. The zoea has a rostral, a dorsal and a pair of laterial spines. There are a pair of lateral hooks on the 2nd and 3rd abdominal ... -
Ferrocement bouys for mussel culture
(International Ferrocement Information Center, 1979)This paper describes a method of constructing 12 mm thick ferocement buoys used as a floatation system in the culture of green mussels (Mytilus smaragdinus). -
A preliminary study on the protein requirements of Chanos chanos (Forskal) fry in a controlled environment
(Elsevier, 1979)Milkfish (Chanos chanos) fry with an average weight of 40 mg per fish were stocked in 60-l wooden-glass aquaria filled with 30 l of filtered sea water with a salinity of 32–34 p.p.t. and a temperature of 25–28°C. They were ... -
On the induced spawning and larval rearing of milkfish, Chanos chanos (Forskal)
(Elsevier, 1979)A female milkfish, captured at sea, was injected with two hormonal injections of acetone-dried salmon pituitary powder and human chorionic gonadotropin, plus Vitamin B complex. It was stripped, and produced 128,000 ripe ... -
Larvae of decapod crustacea of the Philippines. IV. Larval development of the banana prawn, Penaeus merguiensis reared in the laboratory
(The Japanese Society of Scientific Fisheries, 1979)The eggs, the larval stages and the first postlarva of the banana prawn, Penaeus merguiensis, from Philippine waters are described and illustrated. The complete larval stage consisting of six naupliar, three protozoeal ... -
Larvae of decapod crustacea of the Philippines. III. Larval development of the giant tiger prawn, Penaeus monodon reared in the laboratory
(The Japanese Society of Scientific Fisheries, 1979)The egg, larval stages and the first postlarva of the giant tiger prawn, Penaeus monodon Fabricius, reared from egg in the laboratory are described and illustrated. Six naupliar, three protozoeal and three mysis stages ... -
On a new species of Metapenaeus (Crustacea, Decapoda: Penaeidae) from the Philippines
(The Japanese Society of Fisheries Science, 1979)A new species of penaeid prawn, Metapenaeus philippinensis from the Philippines is described in detail and compared with the closely related species, M. ensis. The petasma of the new species which superficially resembles ... -
Mass-production of Tetraselmis chuii in seawater
(University of the Philippines at Los Baños, 1979) -
Growth of chaetoceros-calcitrans in seawater fortified with fertilizers
(University of the Philippines at Los Baños, 1979) -
Larval mycosis in Penaeus monodon
(University of the Philippines, Los Baños, 1979)A phycomycetous fungus, presumably a Lagenidium, was observed to infect Penaeus monodon larvae. Monitoring of the hatchery in 1976 and 1977 showed that it occurred in 35 out of 51 and 22 out of 37 runs, respectively. So ... -
Toxicity of malachite green to the larvae of Penaeus monodon
(University of the Philippines at Los Baños, 1978)The toxicity of malachite green to the larvae of the jumbo tiger prawn Penaeus monodon was determined in a static bioassay. Daily larval death was directly proportional to the chemical concentration of and exposure time ... -
Notes on the courtship and mating behavior in Penaeus monodon Fabricius (Decapoda, Natantia)
(Brill Academic Publishers, 1979)Courtship and mating behavior in the sugpo or giant tiger prawn, Penaeus monodon Fabricius, are described. These are divided into three phases: parallel swimming of male and female; male turns ventral side up to female; ... -
Evaluation of various protein sources for Penaeus monodon postlarvae
(University of the Philippines, Los Baños, 1979)Penaeus monodon postlarvae with an average weight of 15.61 mg each were fed fresh brown mussel meat and artificial diets containing casein, shrimp meal, squid meal and Spirulina as protein sources at a daily rate of 20 per ...
