海州湾及邻近海域口虾蛄群体结构及资源分布特征
发布时间：2018-07-28 21:17
【摘要】：口虾蛄(Oratosquilla oratoria)是海州湾的优势渔业生物之一,在海州湾生态系统中发挥着重要作用。本文根据2011年3、5、7、9和12月在海州湾及邻近海域进行的底拖网调查数据,对口虾蛄的群体结构、资源密度特征、空间分布和环境因子对其分布的影响等方面进行了研究。研究表明,口虾蛄的全年平均体长为(102.20±0.65)mm,5月平均体长最大(105.56±0.95)mm,7月平均体长最小(96.48±2.37)mm;幼体比例5月份最低(8.90%),12月份最高(28.67%);口虾蛄的性比5月和7月小于1,其余月份均大于1.80;渔获量变化趋势为5月12月9月7月3月,渔获尾数为5月12月9月3月7月。Pearson相关分析表明,3、5月相对渔获量与叶绿素a、底层水温均呈显著正相关(P0.05);其他月份口虾蛄的相对渔获量与各影响因子之间的相关性均不显著(P0.05)。研究还发现,口虾蛄的空间分布与底质类型密切相关,口虾蛄主要栖息在砂、砂-粉砂-黏土和黏土质砂类型的底质中。
[Abstract]:Oratosquilla (Oratosquilla oratoria) is one of the dominant fishery organisms in Haizhou Bay, which plays an important role in the ecosystem of Haizhou Bay. Based on the data of bottom trawl survey conducted in Haizhou Bay and adjacent sea area in 2011, the population structure, resource density, spatial distribution and the influence of environmental factors on the distribution of Oratosquilla were studied in this paper. Research shows that The annual average body length of Oratosquilla was (102.20 卤0.65) mm, the maximum body length in May was (105.56 卤0.95) mm, the minimum body length in July was (96.48 卤2.37) mm, the proportion of larvae was lowest in May (8.90%) and the highest in December (28.67%), the sex of Oratosquilla was less than 1 in May and July, and the other months were more than 1.80. The trend is May, December, September, July, March, The results of Pearson correlation analysis showed that the relative catch in May was positively correlated with chlorophyll a and the bottom water temperature (P0.05), but the correlation between the relative catch of Oratosquilla in other months and the influencing factors was not significant (P0.05). It was also found that the spatial distribution of Oratosquilla oratosquata was closely related to the type of sediment, and the oratosquilla mainly perched in sand, sand silt clay and clay sand.
【作者单位】： 中国海洋大学水产学院;青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室;
【基金】：青岛海洋科学与技术国家实验室鳌山科技创新计划项目(2015ASKJ02) 高等学校博士学科点专项科研基金项目(20120132130001) 中央高校基本科研业务费专项资金项目(201262004)资助~~
【分类号】：S931.1
[Abstract]:Oratosquilla (Oratosquilla oratoria) is one of the dominant fishery organisms in Haizhou Bay, which plays an important role in the ecosystem of Haizhou Bay. Based on the data of bottom trawl survey conducted in Haizhou Bay and adjacent sea area in 2011, the population structure, resource density, spatial distribution and the influence of environmental factors on the distribution of Oratosquilla were studied in this paper. Research shows that The annual average body length of Oratosquilla was (102.20 卤0.65) mm, the maximum body length in May was (105.56 卤0.95) mm, the minimum body length in July was (96.48 卤2.37) mm, the proportion of larvae was lowest in May (8.90%) and the highest in December (28.67%), the sex of Oratosquilla was less than 1 in May and July, and the other months were more than 1.80. The trend is May, December, September, July, March, The results of Pearson correlation analysis showed that the relative catch in May was positively correlated with chlorophyll a and the bottom water temperature (P0.05), but the correlation between the relative catch of Oratosquilla in other months and the influencing factors was not significant (P0.05). It was also found that the spatial distribution of Oratosquilla oratosquata was closely related to the type of sediment, and the oratosquilla mainly perched in sand, sand silt clay and clay sand.
【作者单位】： 中国海洋大学水产学院;青岛海洋科学与技术国家实验室海洋渔业科学与食物产出过程功能实验室;
【基金】：青岛海洋科学与技术国家实验室鳌山科技创新计划项目(2015ASKJ02) 高等学校博士学科点专项科研基金项目(20120132130001) 中央高校基本科研业务费专项资金项目(201262004)资助~~
【分类号】：S931.1
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