An improved method for collecting naturally spawned milkfish eggs from floating cages

View/ Open
Request this document
Date
1988Author
Page views
133Metadata
Show full item recordCited times in Scopus
Share
Abstract
Natural spawnings of captive milkfish (Chanos chanos Forsskal) held in floating cages were observed in 1980, 1981, 1983 and 1985. Frequency of spawnings increased from two in 1980 to 41 in 1985. Various collectors and collection methods were tried with only slight improvements in number of eggs collected. Although the number of eggs collected per spawning increased from 900 in 1980 to a maximum of 769 000 in 1985, the numbers were not sufficient for mass-scale fry production. The most urgent problem was egg predators inside the floating cages during the spawning season. This paper presents an improved method of egg collection using fine-mesh net cages ("hapa" nets, 1 mm mesh) which effectively prevented entry of egg predators. Before "hapa" nets were installed the number of eggs collected ranged from 3300 to 668 000. From 330 000 to 2 942 000 eggs were collected by using "hapa" net cages. With the new method mass-scale production of milkfish fry can be achieved.
Suggested Citation
Marte, C. L. (1988). An improved method for collecting naturally spawned milkfish eggs from floating cages. Aquaculture , 71(4), 387-392. https://doi.org/10.1016/0044-8486(88)90208-6
Subject
Taxonomic term
Collections
- AQD Journal Articles [1180]
Related items
Showing items related by title, author, creator and subject.
-
Small-scale freshwater aquaculture development: Experiences from the Philippines on giant freshwater prawn, milkfish and tilapia
Aya, Frolan (Japan International Cooperation Agency, 2013-12)The Aquaculture Department of the Southeast Asian Fisheries Development Center (SEAFDEC/AQD) has been promoting a number of programs towards effective dissemination and adoption of science-based aquaculture technologies ... -
Annual report 1977
Southeast Asian Fisheries Development Center, Aquaculture Department (Aquaculture Department, Southeast Asian Fisheries Development Center, 1978) -
Milkfish breeding and hatchery technology at SEAFDEC/AQD
Unknown author (Aquaculture Department, Southeast Asian Fisheries Development Center, 1999)Describes the techniques already adopted by the private sector: broodstock management, broodstock diet, commercial fry production, live transport, and larval diet. A list of AQD research publications on milkfish is included.