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带鱼Trichiurus lepturus Linnaeus是我国海洋渔业中主要的中下层经济鱼类之一,渔业生产产量居第一位。但在长期的渔业生产实践中。主要靠经验凭机会探索中心渔场。由于缺乏鱼类集群与分布规律的理论依据,渔汛预报也常常是困难的。因而,就鱼类的分布特点,聚集状态和规律进行探讨研究,在理论上和实践上都有重要意义。本文试图以统计分析的方法,对带鱼在秋汛的聚集分布类型与规律作初步的探讨,以求索科学合理和切合实际的渔场预报方法,井对一些渔业上常见的现象进行分析证明。 鱼类的集群,除水温以外.还受到其它诸如风情,盐度,潮汐等因子的制约。本文由于资料有限,仅就海洋中水温,水团分布与鱼类聚集、分布的关系进行初步分析探讨。更进一步地研究海况诸因子,找出它们与鱼类聚集之间有规律性关系,对我们的渔情预报无疑是有帮助的。
Trichiurus lepturus Linnaeus is one of the major middle and lower-level economic fishes in marine fisheries in our country, ranking the first place in fishery production. However, in the long-term practice of fishery production. Mainly rely on experience to explore the center of fisheries opportunities. Due to the lack of theoretical basis for the fish cluster and distribution, it is often difficult to forecast fishing season. Therefore, it is of great significance both in theory and in practice to study the distribution characteristics, aggregation status and laws of fish. This paper tries to make a preliminary study on the types and rules of the aggregation and distribution of the octopus in the autumn flood by means of statistical analysis in order to find a scientific and reasonable method for forecasting the fishery and to analyze the common phenomena in some fisheries. Fish clusters, in addition to water temperature, but also by other factors such as style, salinity, tidal constraints. Because of the limited data, this paper only discusses the relationship between water temperature, water mass distribution and fish aggregation and distribution in the ocean. A further study of the factors of the sea-state to find out the regular relationship between them and the aggregation of fish undoubtedly helps our forecasted fisheries.