Latitudinal comparison in the carrying capacity and function of nursery grounds for juvenile Japanese flounder using ecophysiological modeling

利用生态生理模型对牙鲆幼鱼苗地承载力和功能进行纬度比较

基本信息

  • 批准号:
    15580164
  • 负责人:
  • 金额:
    $ 2.3万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2005
  • 项目状态:
    已结题

项目摘要

Latitudinal variation in the carrying capacity and function of nursery grounds for juvenile Japanese flounder, Paralichthys olivaceus, was studied using ecophysiological modeling. 1. Pelagic larval and benthic juvenile Japanese flounder were collected in Wakasa Bay western Japan and Sendai Bay northern Japan. Flounder density was higher in Wakasa Bay than in Sendai Bay by 3-9 times in larvae and 30-60 times in juveniles indicating higher survival rate in northern Japan for larval flounder. 2. Flounder juveniles and mysids as the main prey of flounder juveniles were collected from southern to northern Japan and stomach contents of juveniles were examined. There was a clear tendency of lower juvenile flounder density and higher mysid abundance in northeastern areas than in southwestern areas. As a result, feeding rates and growth rates were higher in northeastern Japan, resulting in greater productivity of flounder juveniles. 3. The production ecology of mysids was studied to incorporate mysid production module into flounder sub-population growth model. 4. We developed a sub-population production model for juvenile flounder with the basis of an ecophysiology model. Using this model, we estimated the optimum stocking density above which the release of hatchery-raised juvenile flounder would restrict the growth of conspecific wild juveniles as food availability will begin to limit sub-population production. The model predicted a higher optimum stocking density in northeastern Japan. However, over-stocking was predicted to have occurred in several areas even in northeastern Japan.
采用生态生理模拟方法,研究了牙鲆幼鱼育苗场的容量和功能随时间的变化。1.在日本西部若狭湾和日本北部北方仙台湾采集了日本比目鱼的浮游幼虫和底栖幼鱼。若狭湾的比目鱼密度比仙台湾高3-9倍的幼体和30-60倍的幼体,表明在日本北方比目鱼的幼体存活率较高。2.从日本南部到北方采集了比目鱼幼鱼和作为比目鱼幼鱼主要猎物的糠虾,并对幼鱼的胃内容物进行了检查。东北部地区比目鱼幼鱼密度较西南部地区低,而糠虾丰度较西南部地区高。因此,日本东北部的摄食率和生长率较高,导致比目鱼幼鱼的生产力更高。3.研究糠虾的生产生态,将糠虾生产模块纳入比目鱼亚种群增长模型。4.在建立比目鱼幼鱼生理生态模型的基础上,建立了比目鱼幼鱼亚种群生产模型。使用这个模型,我们估计的最佳放养密度以上的孵化场提出的少年比目鱼的释放将限制生长的同种野生青少年的食物供应将开始,以限制亚种群生产。该模型预测,在日本东北部较高的最佳放养密度。然而,预计即使在日本东北部的几个地区也会出现库存过剩。

项目成果

期刊论文数量(56)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
海洋生命系のダイナミクスシリーズ第4巻、海の生物資源-生命は海でどう変動しているか- (異体類の加入量変動)(渡邊良朗編集)
海洋生物系统动力学系列第4卷,海洋生物资源-海洋中的生命正在发生怎样的变化?(不同物种的补充变化)(渡边义明主编)
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Howell B.R.;Yamashita Y.;山下 洋
  • 通讯作者:
    山下 洋
ヒラメParalichthys olivaceus稚魚の食物組成と摂餌強度にみられる地域性
牙鲆幼鱼食物成分和摄食强度的区域差异
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    田中庸介;大河俊之;山下洋;田中克
  • 通讯作者:
    田中克
Recruitment variability in flatfishes
比目鱼的补充变异性
Diel and intraspecific variation of vulnerability in the beach mysid, Archaeomysis kokuboi to fish predators
海滩糠虾、国宝古虾对鱼类捕食者的脆弱性的昼夜和种内变异
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Takahashi;K;他
  • 通讯作者:
Reproductive biology of the intertidal and infralittoral mysids, Archaeomysis kokuboi and A.japonica on a sandy beach in NE Japan.
日本东北部沙滩上潮间带和近岸糠虾、Archaeomysis kokuboi 和 A.japonica 的生殖生物学。
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YAMASHITA Yoh其他文献

YAMASHITA Yoh的其他文献

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{{ truncateString('YAMASHITA Yoh', 18)}}的其他基金

Estimate of biological productivity of estuarine and coastal areas as nursery grounds for commercially important fish juveniles
河口和沿海地区作为具有重要商业价值的幼鱼培育地的生物生产力估算
  • 批准号:
    21380124
  • 财政年份:
    2009
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Studies on the utilization of terrestrial organic matter in the biological production system of estuarine and coastal waters
陆地有机质在河口及近海生物生产系统中的利用研究
  • 批准号:
    18380115
  • 财政年份:
    2006
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

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