184483
博碩士論文
Wei Liang Yu, 魏良佑
碩士 / 國立海洋大學 / 環境生物與漁業科學學系 / 91 / Mackerel is one of the most important catch in Taiwan’s northeast coastal fisheries, of which, jack mackerel (Scomber australasicus) makes up over fifty percent of the total catch. In recent years, there has been a gradual decline in its annual reproduction and catch rate. Vital bio-ecological information such as spawning period, spawning grounds, growing grounds, distribution, and migration that are necessary for resource management is lacking, however.
...