Seasonal organization patterns of demersal assemblages in the Gulf of Lions (north-western Mediterranean Sea)
The seasonal organization patterns of demersal assemblages (fish and cephalopods) in the Gulf of Lions were investigated on the basis of a set of bottom trawl surveys. The use of Partial Triadic Analysis (PTA) provided a detailed representation of: (1) the common part of the spatial organization of...
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| Veröffentlicht in: | Journal of the Marine Biological Association of the United Kingdom 2000-10, Vol.80 (5), p.777-783 |
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| container_title | Journal of the Marine Biological Association of the United Kingdom |
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| creator | Gaertner, J.C. |
| description | The seasonal organization patterns of demersal assemblages (fish and cephalopods) in the Gulf of Lions were investigated on the basis of a set of bottom trawl surveys. The use of Partial Triadic Analysis (PTA) provided a detailed representation of: (1) the common part of the spatial organization of demersal assemblages at seasonal scale; and (2) the seasonal variability of each species around this common structure. During the course of the study, demersal assemblages exhibited a strong seasonal stability in their organization patterns and only few species showed a strong seasonal variation in their spatial distribution. Demersal assemblages of the Gulf of Lions were structured primarily on the basis of a non depth coast–open sea gradient, which occurred from the coast to the midshelf region. The influence of depth on the structure of fish assemblages appeared to be only of limited importance and mainly restricted to the continental slope area. The PTA combined with contouring technics could be used to improve our knowledge of community structuring factors, and offers a theoretical framework to assess the reproducibility of multispecies structures. |
| doi_str_mv | 10.1017/S0025315400002745 |
| format | Article |
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The use of Partial Triadic Analysis (PTA) provided a detailed representation of: (1) the common part of the spatial organization of demersal assemblages at seasonal scale; and (2) the seasonal variability of each species around this common structure. During the course of the study, demersal assemblages exhibited a strong seasonal stability in their organization patterns and only few species showed a strong seasonal variation in their spatial distribution. Demersal assemblages of the Gulf of Lions were structured primarily on the basis of a non depth coast–open sea gradient, which occurred from the coast to the midshelf region. The influence of depth on the structure of fish assemblages appeared to be only of limited importance and mainly restricted to the continental slope area. The PTA combined with contouring technics could be used to improve our knowledge of community structuring factors, and offers a theoretical framework to assess the reproducibility of multispecies structures.</description><identifier>ISSN: 0025-3154</identifier><identifier>EISSN: 1469-7769</identifier><identifier>DOI: 10.1017/S0025315400002745</identifier><identifier>CODEN: JMBAAK</identifier><language>eng</language><publisher>Cambridge: Cambridge University Press</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Fundamental and applied biological sciences. 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Mar. Biol. Ass</addtitle><description>The seasonal organization patterns of demersal assemblages (fish and cephalopods) in the Gulf of Lions were investigated on the basis of a set of bottom trawl surveys. The use of Partial Triadic Analysis (PTA) provided a detailed representation of: (1) the common part of the spatial organization of demersal assemblages at seasonal scale; and (2) the seasonal variability of each species around this common structure. During the course of the study, demersal assemblages exhibited a strong seasonal stability in their organization patterns and only few species showed a strong seasonal variation in their spatial distribution. Demersal assemblages of the Gulf of Lions were structured primarily on the basis of a non depth coast–open sea gradient, which occurred from the coast to the midshelf region. The influence of depth on the structure of fish assemblages appeared to be only of limited importance and mainly restricted to the continental slope area. The PTA combined with contouring technics could be used to improve our knowledge of community structuring factors, and offers a theoretical framework to assess the reproducibility of multispecies structures.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Marine</topic><topic>Sea water ecosystems</topic><topic>Synecology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gaertner, J.C.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of the Marine Biological Association of the United Kingdom</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gaertner, J.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Seasonal organization patterns of demersal assemblages in the Gulf of Lions (north-western Mediterranean Sea)</atitle><jtitle>Journal of the Marine Biological Association of the United Kingdom</jtitle><addtitle>J. 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Demersal assemblages of the Gulf of Lions were structured primarily on the basis of a non depth coast–open sea gradient, which occurred from the coast to the midshelf region. The influence of depth on the structure of fish assemblages appeared to be only of limited importance and mainly restricted to the continental slope area. The PTA combined with contouring technics could be used to improve our knowledge of community structuring factors, and offers a theoretical framework to assess the reproducibility of multispecies structures.</abstract><cop>Cambridge</cop><pub>Cambridge University Press</pub><doi>10.1017/S0025315400002745</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of the Marine Biological Association of the United Kingdom, 2000-10, Vol.80 (5), p.777-783 |
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| source | Cambridge University Press Journals Complete |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences Fundamental and applied biological sciences. Psychology Marine Sea water ecosystems Synecology |
| title | Seasonal organization patterns of demersal assemblages in the Gulf of Lions (north-western Mediterranean Sea) |
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