摘要
通过对比2006-2007与1998-2000年天津市塘沽区渔业产量及组成发现,10年间总渔获量呈上升趋势,2007年渔获总产量接近1.3万t,鱼类取代虾类,成为主要渔获物。小黄鱼产量明显上升,2007年产量2 436.0t,是1999年的23倍,虾蟹类产量最多的口虾蛄仅为1999年的27.7%。2007年杂鱼产量有所下降,杂虾产量较2000年增加了6.5倍,杂贝占贝类总产量比例由上世纪末的20%左右增加到94.39%。
By compare yield and species composing of catch between 2006～2007 and 1998～2000 in Tanggu sea area,the total catch was showed the trend of increasing during 10 years.The total yield of catch was near to 1.3×104t,the fish has replaced the position of shrimp in catch,and became to the first.During 10 years,the catch of small yellow croaker increased markedly,that amount to 2436.0t in 2007,and was 23 times of that in 1999.The catch of mantis shrimp was 27.7% of that in 1999.In 2007,the catch of trash fish was lower than previous year,the trash shrimp catch was more 5.5 times than that in 2000,and the scale of catch of trash seashell has increased from 20% taking on total seashell at the end of 20th century to 94.39% in 2007.
关键词
塘沽
渔获
组成
Tanggu
Catch
Component
