Increasing habitat complexity enhances crab density: A case study from Thailand,Ecological Research

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Increasing habitat complexity enhances crab density: A case study from Thailand
Ecological Research ( IF 1.7 ) Pub Date : 2020-12-14 , DOI: 10.1111/1440-1703.12196
Piyalap Tuntiprapas _{1,

2} , Ekkalak Rattanachot ₂ , Anchana Prathep _{1,

2}

Affiliation

The problem of seagrass degradation in Southeast Asia region, which harbors some of the greatest marine biodiversity in the world, is increasing due to coastal development and the lack of efficient management. These factors have caused the decline of marine life and have impacted local fisheries. The present study investigated the species, sizes and abundance of swimming crabs in areas of differing seagrass cover at Koh Tha Rai in the Gulf of Thailand. Seagrass cover and crab populations were investigated on May 2006, September 2010 and August 2017. The results showed concomitant change in seagrass cover and the dominant crab species, Thalamita crenata. Seagrass increased from 27.69 ± 5.08% (mean ± SE) to 58.89 ± 5.61% at the low cover site between May 2006 and July 2017, while T. crenata abundance increased 10‐fold (p ≤ .0001). This study highlights the importance of conservation and the importance of seagrass in terms of providing ecosystem services and habitat/refuge for marine benthos in the region.

中文翻译：

栖息地复杂性的增加会增加蟹的密度：来自泰国的案例研究

由于沿海地区的发展和缺乏有效的管理，东南亚地区拥有世界上最大的海洋生物多样性的海草退化问题正在加剧。这些因素造成了海洋生物的减少，并影响了当地的渔业。本研究调查了泰国湾Koh Tha Rai不同海草覆盖区域的游泳蟹的种类，大小和数量。在2006年5月，2010年9月和2017年8月对海草覆盖和螃蟹种群进行了调查。结果显示，海草覆盖和主要蟹种Thalamita crenata随之变化。在2006年5月至2017年7月期间，低覆盖率地区的海草从27.69±5.08％（平均± SE）增加到58.89±5.61％，而T.籽丰度增加了10倍（p ≤0.0001）。这项研究突出了保护的重要性和海草在为该区域海洋底栖生物提供生态系统服务和栖息地/避难所方面的重要性。

更新日期：2020-12-14

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