Institutional and Meeting Reports: Recent submissions
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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 ... -
Isolation and culture in artificial media of Lagenidium from Penaeus monodon larvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Fungal infection of P. monodon larvae is a problem in hatchery operations. The fungus, which attacks the nauplius to postlarval stages and causes up to 100% mortality, has been tentatively identified as belonging to the ... -
Methods of harvesting and preservation of the diatom Chaetoceros calcitrans
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Diatom culture and larval feeding experiments were conducted to test the viability and acceptability of preserved algal concentrates. C. calcitrans is characterised by the presence of setae which keep them suspended in ... -
Amino acid analysis of P. monodon muscle
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Figures for the amino acid composition of Penaeus monodon, are tabulated, and compared to those for white tuna meat. -
Laboratory breeding of the mud crab Scylla serrata (Forskal) through the zoea and megalopa stages to the crab stage
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)A series of experiments is being conducted to establish breeding techniques to mass-produce seedlings of S. serrata for pond cultivation to meet the commercial demand for the crab. The objective is to culture the crab ... -
Salinity preference of the milkfish Chanos chanos Forskal
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Extended abstract only. -
Use of fermented kitchen waste in rearing Penaeus monodon larvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Fermented vegetable and kitchen wastes are available as feeds for not only zoea but also mysis and up to certain points in the postlarval stages of sugpo, Penaeus monodon. It is recommended that the hatchery use fermented ... -
Effect of temperature on the oxygen consumption of Penaeus monodon postlarvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Extended abstract only. -
Effect of nitrite, ammonia, and temperature on P. monodon larvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)P. monodon larvae were studied for the effects of temperature, ammonia, and nitrite on survival. Toxicity levels of nitrite were found to vary with larval stage. Larvae could tolerate ammonia up to about 10 ppm, with the ... -
Notes on ovarian rematuration of ablated sugpo (prawn) Penaeus monodon Fabricius
Primavera, Jurgenne; (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
To what extent spent P. monodon females can remature and spawn successive broods is an important question in terms of recycling spawners in a commercially viable operation. Corollary to this is the quantity and quality of ... -
Effect of different light intensities on the growth of the diatom Chaetoceros calcitrans
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)Batch cultures of C. calcitrans were maintained indoors at a temperature range of 21 to 25 C and continuously illuminated by 40-watt daylight fluorescent lights. Cultures were exposed to 5 different intensities from 200 ...
