文章摘要
海洋环境变化对北太平洋柔鱼个体生长的影响
Effects of marine environment variation on the growth of neon flying squid (Ommastrephes bartramii) in the north Pacific Ocean
投稿时间:2020-10-22  修订日期:2020-11-30
DOI:
中文关键词: 柔鱼,海洋环境变化,个体生长,年间差异,北太平洋
英文关键词: Ommastrephes bartramii  marine environment variation  body growth  annual variation  the north Pacific Ocean
基金项目:国家自然科学(NSFC41876141);海洋二号卫星地面应用系统项目(HY2A-HT-YWY-006)
作者单位邮编
王岩 上海海洋大学海洋科学学院 201306
陈新军 上海海洋大学海洋科学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农业部大洋渔业开发重点实验室国家远洋渔业工程技术研究中心大洋渔业资源可持续开发教育部重点实验室 201306
方舟 上海海洋大学海洋科学学院农业部大洋渔业开发重点实验室国家远洋渔业工程技术研究中心大洋渔业资源可持续开发教育部重点实验室 
摘要点击次数: 224
全文下载次数: 0
中文摘要:
      海洋环境变化会对海洋生物个体大小及其生长产生影响,特别是短生命周期的种类。为此根据2009-2012、2015-2016年8-10月采集的6091尾西北太平洋柔鱼样本,对其渔业生物学特征进行了研究,并结合海洋环境因子进行综合分析。研究发现,雌雄个体生物学特征在不同海洋环境年均存在显著差异(P<0.05)。柔鱼胴长与太平洋年代际涛动指数(Pacific Decadal Oscillation index,PDOI)呈滞后一年的正相关。PDO冷期厄尔尼诺年(2009年)柔鱼个体较同期拉尼娜年(2010和2011年)柔鱼个体大,但超强厄尔尼诺年(2015年)柔鱼个体明显偏小。同时,超强厄尔尼诺年(2015年)出现低SST和Chl. a浓度的现象,不利于柔鱼生长,并抑制性腺发育。而较高SST和Chl. a浓度为柔鱼提供良好的生存环境,出现个体相对较大的现象,并有利于性腺发育。不同海洋环境年柔鱼生物学特征存在一定的差异,同时PDO、厄尔尼诺/拉尼娜事件、SST和Chl. a浓度的综合作用是影响个体大小的主要因素。
英文摘要:
      Marine environment variation has a profound impact on the marine organisms and their growth, especially for the short life span species. Based on 6091 samples of neon flying squid (Ommastrephes bartramii) collected from August to October in 2009 to 2012 and 2015 to 2016 in the north Pacific Ocean, the fisheries biological characteristics combined with the marine environmental factors of O. bartramii were studied. The result indicated that significant difference of fisheries biological characteristics was found between different sexes and marine environment years. The mantle length of O. bartramii was positive correlated to the Pacific Decadal Oscillation index with one-year lag. Samples in El Ni?o years were lager than those in La Ni?a years, while individuals in El Ni?o year with very strong intensity were the smallest of all. The El Ni?o event with very strong intensity caused lower sea surface temperature (SST) and Chlorophyll a (Chl. a) concentration was not beneficial to the growth and their mature of O. bartramii, while higher SST and Chl. a concentration provided favorable environment for O. bartramii with a larger body size and early maturement. The fisheries biological characteristics had significant different between different marine environment years, and the synthetic influence of PDO, El Ni?o/La Ni?a, SST and Chl. a concentration is the dominate factor that affect the growth of O. bartramii.
HTML     下载PDF阅读器
关闭

手机扫一扫看