摘要
:以初级生产力为基础 ,应用Steele模式估算台湾海峡及其邻近海域中上层鱼类资源年生产量为16 9.88× 10 4 t。估算鲐鱼类群聚资源量为 10 2 .0 8× 10 4 t。Gulland模式和简单模式估算鲐鱼类群聚资源的MSY分别为 50 .6 6× 10 4 t和 51.0 4× 10 4 t。Schaefer和Fox 2种剩余产量模式所估算的MSY分别为52 .4 1× 10 4 t和 51.73× 10 4 t,估算的fMSY换算为福建灯围渔船分别为 10 17组和 10 75组 ,并从海峡南、北 2个不同群系的鲐鱼类主要种群结构和生态学变化及渔业现状 ,讨论该
Based on the primary productivity and Steele(1974) model, the biomass of the pelagic fish resources are estimated to be 169.88×10 4t in the Taiwan Strait and its adjacent waters. The biomass of chub mackerel and round scad and others is 102.08×10 4t. The MSY(most sustainable yield)of chub mackerel and round scad are estimated to be 50.66×10 4t and 51.04×10 4t respectively using Gulland and simple models. At the same t ime, the MSY are estimated to be 52.41×10 4t and 51.73×10 4t respectively using surplus yield model, and the f MSY (most sustainable fishing power, kW·d) are equal to those of 1 017 groups or 1 075 boat groups of light-seine in Fujian Province. The estimated water area was 22°00'～27°00'N, 117°30'～126°30'E, including 7 fishing grounds which are in eastern Fujian, outside Fujian, northern Taiwan, middle Fujian, eastern Taiwan, southern Fujian and Taiwan shalow shoal. There are 2 stocks of chub marckerel and round scad distributing in south and north of the Taiwan Strait. The population structure, ecology index and present fishery situation between the 2 stocks are different. For the south stock, the catches of recent 20 years are some steady, all below the estimated MSY, indicating an exploitable potentiality. But for the north stock, the resource of round scad and chub mackerel has been over exploided.
出处
《中国水产科学》
CAS
CSCD
2000年第1期41-45,共5页
Journal of Fishery Sciences of China
基金
国家自然科学基金!重点项目 (496362 2 0 )
福建省专项基金资助
