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강릉 연안에서 형망의 갈퀴 간격 및 망목 크기에 따른 어획 생물의 종조성 및 군집 분석

Species composition and cluster analysis of the communities caught by dredge in relation to tooth spacing and mesh size in the coastal waters of Gangneung, Korea

홍성익|배재현|박종명|박창두|안희춘
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)|2014.11|수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)|제50권 제4호|pp. 530-541

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참고문헌

키워드

Cluster analysisSpecies compositionDredgeBenthic communities
주제분류수산학

초록

The dredge gear is dragged along the bottom of the sea to catch targeted edible bottom dwelling species. Species composition and ecological index of the catches of dredge were estimated around Gangneung coastal fishing ground by dredge with different mesh size and tooth space from July to December 2013. Eight different types of dredge including four different tooth space (24.7 mm, 29.9 mm, 34.9 mm, 40.1 mm) and four different mesh size(15.5 mm, 32.7 mm, 51.1 mm, 60.0 mm) were used in the experiment. During the experiment, total catches were collected 31 species as sipunculida 1 species, mollusca 13 species, annelida 3 species, arthropoda 8 species, echinodermata 4 species and others 2 species. The dominant genus were mollusca and echinodermata while the dominant species were Megangulus venulosus, Pseudocardium sachalinensis, Schaphechinus brevis. The richness index was ranged 1.29-1.72, evenness index was 0.6-0.65 and diversity index was 1.65-1.83 according to the tooth space and mesh size of dredge. Richness index, diversity index were high at tooth space 34.9 mm dredge and ecological index showed decreasing tendency with the increasing of mesh size of dredge. Cluster and MDS analysis, based on a Bray-Curtis and similarity matrix of fourth root transformed data of number of species and wet weight, showed division into four different groups as four different tooth space (Group A), four different mesh size Group B (51.1 mm, 60.0 mm), Group C (32.7 mm) and Group D (15.5 mm).

Abstract

The dredge gear is dragged along the bottom of the sea to catch targeted edible bottom dwelling species. Species composition and ecological index of the catches of dredge were estimated around Gangneung coastal fishing ground by dredge with different mesh size and tooth space from July to December 2013. Eight different types of dredge including four different tooth space (24.7 mm, 29.9 mm, 34.9 mm, 40.1 mm) and four different mesh size(15.5 mm, 32.7 mm, 51.1 mm, 60.0 mm) were used in the experiment. During the experiment, total catches were collected 31 species as sipunculida 1 species, mollusca 13 species, annelida 3 species, arthropoda 8 species, echinodermata 4 species and others 2 species. The dominant genus were mollusca and echinodermata while the dominant species were Megangulus venulosus, Pseudocardium sachalinensis, Schaphechinus brevis. The richness index was ranged 1.29-1.72, evenness index was 0.6-0.65 and diversity index was 1.65-1.83 according to the tooth space and mesh size of dredge. Richness index, diversity index were high at tooth space 34.9 mm dredge and ecological index showed decreasing tendency with the increasing of mesh size of dredge. Cluster and MDS analysis, based on a Bray-Curtis and similarity matrix of fourth root transformed data of number of species and wet weight, showed division into four different groups as four different tooth space (Group A), four different mesh size Group B (51.1 mm, 60.0 mm), Group C (32.7 mm) and Group D (15.5 mm).

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강원 연안에서 삼중자망에 의한 어획물의 종조성 및 분포특성박정호, 손명호, 양재형, 윤병선, 최영민한국수산과학회 · 한국수산과학회지2014 · 제47권 제6호포항 영일만 형망어업의 어획 및 혼획 실태박종명, 박창두, 박해훈, 배재현, 안희춘, 윤병선, 홍성익한국수산해양기술학회 · 수산해양기술연구2015 · 제51권 제4호울진바다목장에서 형망으로 어획된 수산자원의 군집구조박정호, 손명호, 양재형, 윤병선, 윤상철한국수산과학회 · 한국수산과학회지2014 · 제47권 제6호울진바다목장 해역에서 오터트롤로 어획한 저서생물의 군집구조김종빈, 박정호, 박종화, 양재형, 윤병선, 윤상철, 이성일, 최영민한국수산과학회 · 한국수산과학회지2011 · 제44권 제5호영일만 형망어업 어획물의 종조성 및 분포 특성박종명, 박창두, 배재현, 안희춘, 윤병선, 홍성익한국수산해양기술학회 · 수산해양기술연구2016 · 제52권 제1호동해 중부해역 저서무척추동물의 분포특성 및 군집구조김종빈, 박정호, 손영호, 양재형, 윤병선, 최영민한국수산해양기술학회 · 수산해양기술연구2016 · 제52권 제4호

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