马来西亚西部半岛的对虾登陆及其与红树林和浅水范围的关系

IF 2.6 3区 地球科学 Q1 MARINE & FRESHWATER BIOLOGY
N.R. Loneragan , N. Ahmad Adnan , R.M. Connolly , F.J. Manson
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引用次数: 57

摘要

本研究调查了马来西亚半岛西部所有对虾、白对虾(主要是merguiensis)、红树林面积、降雨量和浅水面积的变化。霹雳州是所有对虾和白对虾上岸的最重要的州,大约50%的对虾和35%的白对虾上岸。这也是拥有最大和最稳定的红树林保护区范围(40000公顷)和最大的浅水面积(5米深)的州。霹雳州的幼虾可能有助于附近的槟城和雪兰莪州的登陆,在那里,白对虾和总对虾的登陆量分别位居第二。浅水面积对所有对虾和白对虾的上岸量的影响最大,是对上岸量和海岸属性(浅水面积、红树林面积、海岸线长度)的多元回归拟合最显著的变量。尽管在20世纪80年代和90年代,总对虾的上岸量与红树林面积之间存在显著的线性关系,但对于依赖红树林的白对虾来说,情况并非如此,只有在20世纪90年代才发现显著的关系。此外,在雪兰莪州和柔佛州,所有对虾和白对虾的上岸数量在20世纪90年代似乎保持或增加了,那里的红树林保护区有大量损失。红树林损失和对虾登陆之间缺乏明确的关系可能是由于对虾从邻近地区迁移,或者红树林的其他属性,如红树林-水界面的长度,对对虾种群的生长和生存可能比红树林总面积更重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prawn landings and their relationship with the extent of mangroves and shallow waters in western peninsular Malaysia

This study investigated changes in landings of all prawns, white prawns (mainly Penaeus merguiensis), mangrove extent, rainfall and the area of shallow water in western peninsular Malaysia. The most important state for both the landings of all prawns and white prawns was Perak where about 50% of all prawns and 35% of white prawns were landed. This is also the state with the largest, and most stable, extent of mangrove forest reserve (40 000 ha) and the largest area of shallow water (<5 m deep). Juvenile prawns from Perak may contribute to the landings of the nearby, adjacent states of Penang and Selangor, where the second highest landings for white prawns and total prawns, respectively, were found. The area of shallow water accounted for the greatest proportion of variation in landings of both all prawns and white prawns, and was the most significant variable fitted to multiple regressions of landings and coastal attributes (area of shallow water, mangrove area, length of coastline). Although there was a significant linear relationship between the landings of total prawns and mangrove area in both the 1980s and 1990s, this was not the case for the mangrove-dependent white prawns where a significant relationship was found only for the 1990s. Furthermore, landings of all prawns and white prawns in Selangor and Johor, where large losses of mangrove forest reserve have been recorded, appear to have been maintained or increased in the 1990s. The lack of a clear relationship between mangrove loss and prawn landings may be due to the migration of prawns from adjacent areas or that other attributes of mangroves, such as the length of mangrove-water interface, may be more important for the growth and survival of prawn populations than total area of mangroves.

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来源期刊
CiteScore
5.60
自引率
7.10%
发文量
374
审稿时长
9 months
期刊介绍: Estuarine, Coastal and Shelf Science is an international multidisciplinary journal devoted to the analysis of saline water phenomena ranging from the outer edge of the continental shelf to the upper limits of the tidal zone. The journal provides a unique forum, unifying the multidisciplinary approaches to the study of the oceanography of estuaries, coastal zones, and continental shelf seas. It features original research papers, review papers and short communications treating such disciplines as zoology, botany, geology, sedimentology, physical oceanography.
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