...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine ecology progress series >Habitat structure in soft-sediment environments and abundance of juvenile snapper Pagrus auratus
【24h】

Habitat structure in soft-sediment environments and abundance of juvenile snapper Pagrus auratus

机译：软沉积环境下的栖息地结构和幼鲷鱼Pagrus auratus的丰富度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Small-scale biogenic or physical features, such as depressions, burrows, shells, boulders, cobbles and sand waves, dominate soft-sediment coastal and shelf environments. Such structures may provide refuge from predation and feeding areas for juvenile fish. We investigated the potential for juvenile snapper Pagrus auratus to utilise areas characterised by small-scale structures by sampling soft-sediment habitats that varied in both sediment characteristics and biogenic structure. Juvenile snapper abundance was estimated at each site using opera house traps, while variations in small-scale benthic habitat structure were quantified from video transects of the seafloor. The captured fish had 172 +- 43 mm fork length, indicating that they were 1 to 2 yr old. Statistical modelling revealed that complex habitat structure had a positive influence on the abundance of juvenile snapper, suggesting that these areas are preferentially utilised. This finding highlights the potential for disturbance of such structures (by, for example, trawling or dredging) to affect the abundance of juvenile snapper.
机译：诸如凹陷，洞穴，贝壳，巨石，鹅卵石和沙浪之类的小规模生物成因或物理特征主导着软沉积的沿海和陆架环境。这样的结构可以为幼鱼的捕食和觅食区提供庇护。我们通过采样沉积物特征和生物成因结构各不相同的软沉积物生境，研究了幼年鲷鱼Pagrus auratus利用小规模结构区域的潜力。使用歌剧院陷阱估计每个地点的少年鲷鱼数量，而小规模底栖生境结构的变化则通过海底视频断面进行量化。捕获的鱼叉长为172±43毫米，表明它们年龄为1至2岁。统计模型表明，复杂的栖息地结构对少年鲷鱼的丰度有积极影响，表明这些区域被优先利用。这一发现突显了这种结构受到干扰（例如通过拖网或挖泥）而影响幼鲷鱼数量的可能性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号