方氏云鳚渔业生物学及其在辽宁沿海的渔业

Biology and its Fishery of Fang's blenny Enedrias fangi Wang et Wang in Offshore in Liaoning Province

方氏云鳚为近岸季节集群性小型底层冷水性鱼类,黄、渤两海均有分布.黄海北部及渤海主要群体每年10～11月集中在北纬38°00'～39°00'近岸水域产卵,群体中Ⅳ个世代,雌雄性成熟均为Ⅱ龄.方氏云鳚在辽宁沿岸每年有两次渔汛期:幼鱼渔汛期3～5月,渔获量3×106～4×106 kg;成鱼渔汛期9～12月,渔获量约2×107 kg.渔业产值近亿元.目前方氏云鳚成鱼在辽宁的资源量约6×107 kg,年捕捞量约3×107 kg,现阶段资源量与捕捞量基本平衡.

Fang＇s blenny Enedrias fangi Wang et Wang is a small, seasonal grouping and cold species and found in offshore bottom of Yellow sea as well as Bohai sea. The fish spawns in Northem Yellow sea and Bohai sea （N38°00＇ ～ 39°00＇） in October and November. Five generations were found in the population and its age at maturity is 2 years old. There are two fishing seasons in Liaoning coast： one is juvenile season in March to May with approximate production of 3 ～ 4 ×106 kg, and the other is adult one in September to December with 2 × 10^ kg production. Total values reach about 100 million RMB each year. It is estimated that the fishery resource is about 6 × 10^7 kg in coastal Liaoning, and fishing production about 3 × 10^7 kg annually, basically equivalent between resources and fishing production at present.