...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Russian journal of marine biology >The Size and Age Structure of Tridacna crocea Lamarck, 1819 (Bivalvia: Tridacnidae) in the Coastal Area of Islands of the Con Dao Archipelago in the South China Sea
【24h】

The Size and Age Structure of Tridacna crocea Lamarck, 1819 (Bivalvia: Tridacnidae) in the Coastal Area of Islands of the Con Dao Archipelago in the South China Sea

机译：南海孔道群岛岛屿沿海地区的大戟Tri（1819年，双壳纲：Tridacnidae）的大小和年龄结构

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

In May 2010, an expedition on the research vessel Akademik Oparin explored the populations of the clam Tridacna crocea on reefs of the Bay Canh and Cau islands of the Con Dao Archipelago in the South China Sea. A retrospective approach using phototechniques revealed a great similarity of the vertical distribution, growth, size, and age composition of the tridacna at these islands. The maximum density of tridacna (25 ind/m2) was characteristic of a depth of about 3 m in the area of reef flat transition to reef slope. The growth of clams can be approximated by a Bertalanffy-type equation: Z.t = 133.8(1 — e-0.1181(t=0.2596)],The lack of discreteness in the size and age compositions of populations of T. crocea indicated that population recruitment was quite stable over the years. This tends to maintain the population in a relatively stable condition, which enabled us to consider it as a possible reserve for the artificial restoration of populations of the species in impoverished coastal areas of Vietnam.
机译：2010年5月，研究船Akademik Oparin进行了一次探险，在南中国海昆达群岛的湾Canh和Cau岛的礁石上探索了蛤Tri Tridacna crocea的种群。使用光技术的回顾性方法揭示了这些岛屿上的三角龙的垂直分布，生长，大小和年龄组成都非常相似。 Tridacna的最大密度（25 ind / m2）是在礁滩平过渡到礁坡的区域内约3 m深度的特征。蛤的生长可以通过贝塔朗菲型方程来近似：Zt = 133.8（1-e-0.1181（t = 0.2596）]，丁香T种群的大小和年龄组成缺乏离散性，表明种群招募在过去的几年中非常稳定，这倾向于使种群保持在相对稳定的状态，这使我们能够将其视为在越南贫困沿海地区人为地恢复该物种种群的一种可能的保护区。

著录项

相似文献

  • 外文文献
  • 中文文献
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