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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46095

Title: Effects of pile size of artificial reefs on the standing stocks of fishes. Fisheries Research
Authors: Rong-Quen Jan
Yu-Hsing Liu
Ching-Yi Chen
Min-Chang Wang
Gwo-Shyh Song
Hong-Cheng Lin
Kwang-Tsao Shao
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: Coastal fisheries
Artificial marine habitats
Fish assemblage
Reef fish residents
Reef fish visitors
Date: 2003
Issue Date: 2018-05-02T01:44:36Z
Publisher: Fisheries Research
Abstract: Abstract: The relationship between production and reef pile size was analysed using standing stocks of fishes surveyed at three established artificial reef (AR) habitats in the subtropical waters off the northern coast of Taiwan during April–August 1999. For a closer look, the fish assemblage was further divided into visitors and residents, and biomass was used as a parameter to represent production. Visitors were characterised by sporadic occurrences and highly variable school sizes. However, large schools (containing more than 200 kg of biomass) occurred only around small AR piles (consisting of less than 15 units of 2-m3 concrete reef). Considering visitors alone, the correlation between biomass and pile size was not significant for the combined data from three sites. Changes in the standing stock of residents followed a clearer trend, and the relationship could be fitted to a sigmoidal equation. This trend shows that collections of the residents tended to increase until the pile reached a size of 20–30 reef units. Thereafter, the increase in biomass slowed, and maximum biomass would eventually be reached only with a further increase in the pile size. Predictions of the efficiency of unit reefs for different pile sizes indicate that a pile consisting of 4–10 units of this type of reef would be most effective in terms of biomass of residents. Nevertheless, a size of 15 units is recommended when the behaviour of visitors is taken into account.
Relation: 63 pp.327–337
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/46095
Appears in Collections:[海洋生物研究所] 期刊論文

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