• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Migratory and within-estuary behaviors of adult Summer Flounder (Paralichthys dentatus) in a lagoon system of the southern mid-Atlantic Bightud
【2h】

Migratory and within-estuary behaviors of adult Summer Flounder (Paralichthys dentatus) in a lagoon system of the southern mid-Atlantic Bightud

机译：成年夏季比目鱼（Paralichthys dentatus）在大西洋中部大西洋南部的泻湖系统中的迁徙和河口内行为

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We monitored the movements of 45 adult Summer Flounder (Paralichthys dentatus) between June 2007 and July 2008 through the use of passive acoustic telemetry to elucidate migratory and within-estuary behaviors in a lagoon system of the southern mid-Atlantic Bight. Between 8 June and 10 October 2007, fish resided primarily in the deeper (>3 m) regions of the system and exhibited low levels of large-scale (100s of meters) activity. Mean residence time within this estuarine lagoon system was conservatively estimated to be 130 days (range: 18–223 days), which is 1.5 times longer than the residence time previously reported for Summer Flounder in a similar estuarine habitat ~250 km to the north. The majority of fish remained within the lagoon system until mid-October, although some fish dispersed earlier and some of them appeared to disperse temporarily (i.e., exited the system for at least 14 consecutive days before returning). Larger fish were more likely to disperse before mid-October than smaller fish and may have moved to other estuaries or the inner continental shelf. Fish that dispersed after mid-October were more likely to return to the lagoon system the following spring than were fish that dispersed before mid-October. In 2008, fish returned to the system between 7 February and 7 April. Dispersals and returns most closely followed seasonal changes in mean water temperature, but photoperiod and other factors also may have played a role in large-scale movements of Summer Flounder.
机译：我们通过使用被动声遥测技术阐明了大西洋中部南部南部泻湖系统中的迁徙和河口行为，从而监测了2007年6月至2008年7月之间45只成年夏季比目鱼（Paralichthys dentatus）的运动。在2007年6月8日至10月10日之间，鱼类主要栖息在系统的较深区域（> 3 m），并且大型活动水平较低（100米）。据保守估计，在该河口泻湖系统中的平均停留时间为130天（范围：18-223天），比以前报道的夏季比目鱼在北约250公里的类似河口栖息地中的停留时间长1.5倍。大部分鱼保留在泻湖系统中，直到10月中旬，尽管有些鱼较早散布，有些似乎是暂时散开的（即在返回之前至少连续14天离开系统）。与较小的鱼类相比，较大的鱼类在10月中旬之前更可能扩散，并且可能已移至其他河口或内陆大陆架。与10月中旬之前散布的鱼相比，10月中旬之后散布的鱼更有可能在第二年春季返回泻湖系统。 2008年，鱼在2月7日至4月7日返回该系统。分散和返回最接近平均水温的季节性变化，但是光周期和其他因素也可能在夏季比目鱼的大规模运动中起作用。

著录项

相似文献

  • 外文文献
  • 中文文献
代理获取

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