Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast

Deployment depth of artificial reefs is one of the most important issue in planning stage and future success. Most of the studies aimed at determination of fish community around artificial reefs were conducted mainly 10-25m depths in Mediterranean and Aegean Sea. The goals of this study are determin...

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Main Authors: Benal Gül, Altan Lök, Aytaç Özgül, Ali Ula, F. Ozan Düzbastilar, Cengiz Metrin
Format: Article
Language:English
Published: Universidade de São Paulo 2011-01-01
Series:Brazilian Journal of Oceanography
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592011000500005
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spelling doaj-cb9b3c068e2d4636a9050de6c5f85a6c2020-11-24T22:39:17ZengUniversidade de São PauloBrazilian Journal of Oceanography 1679-87591982-436X2011-01-0159spe12732Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coastBenal GülAltan LökAytaç ÖzgülAli UlaF. Ozan DüzbastilarCengiz MetrinDeployment depth of artificial reefs is one of the most important issue in planning stage and future success. Most of the studies aimed at determination of fish community around artificial reefs were conducted mainly 10-25m depths in Mediterranean and Aegean Sea. The goals of this study are determine and compare of fish community structure around artificial reefs which deployed 20, 30 and 40 m depths. Underwater visual census technique was used to determine fish species, number of individual and size estimation. There was no statistical difference (p>0.05) in mean fish biomass and number of individual between the depths. But mean species number was significantly greater on 20 m in comparison to 30 m and 40 m depths (p<0.05). Furthermore, calculated values of Jaccard and Bray-Curtis indexes showed low similarity (min. 3% - max. %37) between depths.<br>A profundidade da implantação de recifes artificiais é uma das questões mais importantes no planejamento de etapas e do futuro êxito. A maior parte dos estudos visando determinar a comunidade de peixes em volta de recifes artificiais foi realizada, principalmente , a profundidades de 10-25m no Mediterrâneo e Mar Egeu. Os objetivos deste estudo são determinar e comparar a estrutura da comunidade de peixes em volta de recifes artificiais que foram implantados a profundidades de 20, 30 e 40 m. A técnica de censo visual foi usada para determinar as espécies e obter uma estimativa do número e tamanho dos peixes. Não houve nenhuma diferença estatística (p> 0.05) entre as profundidades, na média da biomassa de peixes e no número de indivíduos. Entretanto, a média do número de espécies foi significativamente maior nos 20 m em comparação com as profundidades de 30 m e de 40 m (p <0.05). Além disso, os valores calculados dos índices de Zurro-Curtis e Jaccard revelaram pequena semelhança (minuto 3% - máximo %37) entre as profundidades.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592011000500005Recife artificialComunidade de peixesCenso visualMar EgeuArtificial reefFish communityUnderwater visual censusAegean Sea
collection DOAJ
language English
format Article
sources DOAJ
author Benal Gül
Altan Lök
Aytaç Özgül
Ali Ula
F. Ozan Düzbastilar
Cengiz Metrin
spellingShingle Benal Gül
Altan Lök
Aytaç Özgül
Ali Ula
F. Ozan Düzbastilar
Cengiz Metrin
Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast
Brazilian Journal of Oceanography
Recife artificial
Comunidade de peixes
Censo visual
Mar Egeu
Artificial reef
Fish community
Underwater visual census
Aegean Sea
author_facet Benal Gül
Altan Lök
Aytaç Özgül
Ali Ula
F. Ozan Düzbastilar
Cengiz Metrin
author_sort Benal Gül
title Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast
title_short Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast
title_full Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast
title_fullStr Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast
title_full_unstemmed Comparison of fish community structure on artificial reefs deployed at different depths on turkish Aegean sea coast
title_sort comparison of fish community structure on artificial reefs deployed at different depths on turkish aegean sea coast
publisher Universidade de São Paulo
series Brazilian Journal of Oceanography
issn 1679-8759
1982-436X
publishDate 2011-01-01
description Deployment depth of artificial reefs is one of the most important issue in planning stage and future success. Most of the studies aimed at determination of fish community around artificial reefs were conducted mainly 10-25m depths in Mediterranean and Aegean Sea. The goals of this study are determine and compare of fish community structure around artificial reefs which deployed 20, 30 and 40 m depths. Underwater visual census technique was used to determine fish species, number of individual and size estimation. There was no statistical difference (p>0.05) in mean fish biomass and number of individual between the depths. But mean species number was significantly greater on 20 m in comparison to 30 m and 40 m depths (p<0.05). Furthermore, calculated values of Jaccard and Bray-Curtis indexes showed low similarity (min. 3% - max. %37) between depths.<br>A profundidade da implantação de recifes artificiais é uma das questões mais importantes no planejamento de etapas e do futuro êxito. A maior parte dos estudos visando determinar a comunidade de peixes em volta de recifes artificiais foi realizada, principalmente , a profundidades de 10-25m no Mediterrâneo e Mar Egeu. Os objetivos deste estudo são determinar e comparar a estrutura da comunidade de peixes em volta de recifes artificiais que foram implantados a profundidades de 20, 30 e 40 m. A técnica de censo visual foi usada para determinar as espécies e obter uma estimativa do número e tamanho dos peixes. Não houve nenhuma diferença estatística (p> 0.05) entre as profundidades, na média da biomassa de peixes e no número de indivíduos. Entretanto, a média do número de espécies foi significativamente maior nos 20 m em comparação com as profundidades de 30 m e de 40 m (p <0.05). Além disso, os valores calculados dos índices de Zurro-Curtis e Jaccard revelaram pequena semelhança (minuto 3% - máximo %37) entre as profundidades.
topic Recife artificial
Comunidade de peixes
Censo visual
Mar Egeu
Artificial reef
Fish community
Underwater visual census
Aegean Sea
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87592011000500005
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