Institutional Reports: Recent submissions
101-120 / 178
-
Preliminary report on the first production of the crab stages of alimasag, Portunus pelagicus (Linnaeus)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)An experiment was undertaken studying the early life history of Portunus pelagicus in order to obtain information of relevance to rearing techniques for crabs. -
Survival rate of Penaeus monodon Fabricius larvae fed Chaetoceros sp. and bread yeast
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)An evaluation was made of the effects of Chaetoceros species, bread yeast and their combination on the survival of Penaeus monodon larvae. In general it was found that feeding with a combination of the 2 resulted in higher ... -
Observations on the artificial fertilization of eggs and larval rearing of the grey mullet, Mugil cephalus L.
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)The results are presented of attempts to artificially fertilize Mugil cephalus eggs in the Philippines. Embryonic development is outlined and rearing of the larvae described. Mass mortality occurred during week 3 of rearing. -
Toxicity of malachite green to the larvae of Penaeus monodon Fabricius
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)A study was undertaken examining the effect of malachite green on the development and survival of the zoeae, mysis and post-larvae of Penaeus monodon. Sensitivity varied with the different larval stages; the zoeae appeared ... -
Milkfish fry occurrence pattern in two localities along the Western Coast of Panay Island
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)The results are presented of a study of milkfish fry occurrence in the Philippines, namely at Magaba and at Tubog. There were 2 peaks of fry occurrence in the latter, one in May and another in October, whereas only one ... -
Effects of crude, semipurified and purified starch of sago (Metroxylon sagu Rottb.) on the water stability of pelleted shrimp diets
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)A study was conducted to determine the comparative effectiveness of purified, semipurified and crude starch of sago as binders for pelleted shrimp diets. The diet containing semipurified sago starch had the highest water ... -
Relationship between diet composition and growth rate of the zoeal and mysis stages of Penaeus japonicus Bate
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Diets containing Chaetoceros gracilis plus Artemia nauplii artificially prepared diet, Diet-B, and two commercial feeds Tapes and mysid meals, were fed to larvae of P. japonicus. Highest survival rate was obtained when ... -
An experimental assessment of the aquaculture potential of the brown mussel, Modiolus metcalfei
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)A study was conducted at Banate Bay, Iloilo, from November 1975 to March 1976. Trials were conducted using spat collectors of four types, but no Modiolus metcalfei spat settled on any of the experimental collectors during ... -
A preliminary study on the evaluation of casein, shrimp meal, squid meal and spirulina as protein sources for Penaeus monodon (Fabricius) postlarvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)P. monodon postlarvae were fed with fresh brown mussel (Modiolus metcalfei) meat, and artificial diets containing casein, shrimp (Metapenaeus ensis) meal, squid (Loligo) meal, and Spirulina as protein sources at a rate of ... -
Spawning periodicity of milkfish, Chanos chanos
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Daily samplings were conducted in the waters of Batbatan Island from April 17 to June 11, 1977 in order to collect milkfish (Chanos chanos ) eggs. The numbers of eggs collected is tabulated by lunar period. Milkfish fry ... -
Courtship and mating behavior in Penaeus monodon Fabricius
Primavera, Jurgenne
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)
An illustrated description is given of the courtship and mating behaviour of P. monodon. Courtship and mating follow three distinct phases: (1) parallel swimming of male and female from the bottom to a height of 20-40 cm ... -
A preliminary study on the use of the local variety of ipil-ipil Leucaena leucocephala as a protein source for prawn feed
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)A study was carried out to determine the effect of 10 or 20% leaves or seeds in the diet of Penaeus monodon , and the extent to which local ipil-ipil (Leucaena leucocephala ) could replace head shrimp meal. A brief description ... -
Notes on the construction of 12 cu m ferrocement maturation tank for prawn broodstock
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978) -
The effect of different binders on the water stability of feeds for prawn
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Corn starch, gelatin, sago palm starch, agar, and bread flour were tested for their binding capacity in pelleted diets for Penaeus monodon . Agar was found to be good binder, but it costs too much, while bread flour was ... -
Growth and survival of Penaeus monodon postlarvae fed shrimp head meal and fish meal as primary animal source of protein
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Although shrimp head meal alone does not provide for good growth and survival, fish meal can provide high survival rate. The addition of shrimp head improves this diet. It is suggested that cholesterol present in shrimp ... -
A preliminary study on the protein requirement of Chanos chanos (Forskal) fry in a controlled environment
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Growth rate of fish appeared to be related to the levels of the protein in the diet up to 40%. Fish fed diets containing 50 and 60% grew slower than those fed 40%, and the optimum level appears to be 40% when fed to fry ... -
The food and feeding habit of Penaeus monodon Fabricius collected from Makato River, Aklan, Philippines
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)The food of Penaeus monodon collected from Makato R., from Sept 1977 to Jan 1978 is described with preliminary observations on its feeding habit and rate of foregut clearance. Feeding behaviour appears to be associated ... -
Changes in length and weight of milkfish fry preserved in formalin
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Fry shrank immediately after they were preserved in formalin, but from the second week onwards shrinkage was almost nil. Fry in freshwater formalin solutions shrunk less than those in seawater formalin solutions. It is ... -
Preliminary studies on growth and survival of Penaeus japonicus postlarvae fed with Tapes and commercial formula feeds
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1978)Growth and survival of P. japonicus postlarvae was studied using Tapes philippinarum and commercial formula feeds. After a 28-day feeding period, the highest survival rate of 100% was obtained in prawns receiving Diet-B, ... -
Viability of Penaeus monodon eggs after simulated transport conditions
Primavera, Jurgenne; ; (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
P. monodon spawners, transported from maturation pens suffer from stress which in turn may lead to lowered spawning rate or fertility. Spawning the females in the maturation site and transporting the eggs to the hatchery ...
