The Use of Artificial Reefs in Enhancement of Fishery Resources in Tuticorin Coastal Waters, Southeast Coast of India

運用人工魚礁復育印度東南部杜蒂戈林（Tuticorin）沿岸漁業資源之成效分析

10.29822/JFST.201109.0002

Rajendran Ram Kumar；Muthuswamy Jaikumar；Laxhaman Kanagu

人工魚礁組件 ； 組件組合形式 ； 魚類群聚 ； 漁業資源 ； 印度東南海岸 ； Artificial reef modules ； Modules arrangement pattern ； Fish assemblages ； Fishery resources ； Southeast coast of India

臺灣水產學會刊

38卷3期（2011 / 09 / 01）

187 - 200

英文

本研究利用目測法調查印度東南蔓納灣附近的杜蒂戈林海岸之魚類種群，旨在分析兩種人工魚礁（水泥礁以及煤灰礁）之復育成效。該調查於2002年6月至2003年10月間觀測水泥礁區（FC礁區），以及2004年2月到2005年1月間觀測煤灰礁區（FA礁區），利用穿越線法（50*10公尺廊道，總計500平方公尺），潛水紀錄接近以及目視可及之魚種，並針對2種人工魚礁的優缺點進行量化及質化分析。全程總計觀測33科52種魚類，FA第4區記錄之平均生物多樣性指標（1.31）最高，FC第2區生物多樣性指標（0.86）則最低。利用集群分析法分析不同魚礁區之間的魚類群聚的豐度關係，相似度檢定的系統樹圖顯示FA第1區與FC第2區相似度（77.08％）最高。本調查開啟人工魚礁棲地魚類群聚結構複雜度的研究，並提供杜蒂戈林海域人工魚礁區魚類群聚的質性及量性分析結果。

Fish populations in two distinct types of artificial reefs (Ferro cement and Flyash) in the Tuticorin coast of Gulf of Mannar, on the southeast coast of India, were studied using the visual census method. The fish were recorded by swimming along each transect within a 50 x 10 corridor (500 m2), identifying the species that were found near or at a visible distance of each transect. The visual survey was conducted at the Ferro cement artificial reef sites (FC sites) from June 2002 to October 2003, and at fly ash artificial reef sites (FA sites) from February 2004 to January 2005. The advantages and disadvantages of both techniques on the accuracy of qualitative and quantitative results are discussed. Fifty-two species belonging to 33 families were observed during the entire study period. The highest mean value of diversity (1.31) was recorded at FA site 4, and the lowest value (0.86) was recorded at FC site 2. Cluster analysis was applied to analyze the relationship between fish assemblages among artificial reef sites. Dendogram of similarity results for abundance of fish assemblages was conducted between FC sites and FA site. A highest similarity value of 77.08% was observed between FC site 1 and FC site 3. This study was initiated to investigate the effects of habitat structural complexity on fish assemblages on artificial reefs, and toprovide qualitative and quantitative descriptions of the fish assemblage around artificial reefs deployed in the Tuticorin coastal waters.