Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability
Joaquim, S., Gaspar, M. B., Matias, D., Ben-Hamadou, R., and Arnold, W. S. 2008. Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability. – ICES Journal of Marine Science, 65: 60–64. Populations of commercially imp...
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description | Joaquim, S., Gaspar, M. B., Matias, D., Ben-Hamadou, R., and Arnold, W. S. 2008. Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability. – ICES Journal of Marine Science, 65: 60–64. Populations of commercially important bivalves along the coast of Portugal are depleted as a consequence of natural and anthropogenic causes. A pilot experiment was designed to determine the feasibility of transplanting individuals from natural clam beds to a closed fishing area in an effort to rebuild relatively high-density patches of Spisula solida. For this purpose, clams were equally partitioned into two groups (undersize and legal clams) and transplanted at a density of 40 clams m−2 into two areas 50 m2. Transplanted and control clams were sampled to estimate survival, condition index, biochemical composition, and reproductive condition. Generally, the physiological condition of clams was not affected by the method of transplanting. One year after transplanting, survival was 45%. The increase in local abundance of mature clams should facilitate successful fertilization and increase the residual reproductive value of each clam relative to its pre-transplant value. Transplanting undersize clams may be more advantageous because they are more likely to spawn at least once before harvest. The experiments demonstrate that spawner transplants may strengthen S. solida populations and can be used in stock-enhancement programmes which, in conjunction with effective management measures, can contribute to the sustainability of the S. solida fishery. |
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B., Matias, D., Ben-Hamadou, R., and Arnold, W. S. 2008. Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability. – ICES Journal of Marine Science, 65: 60–64. Populations of commercially important bivalves along the coast of Portugal are depleted as a consequence of natural and anthropogenic causes. A pilot experiment was designed to determine the feasibility of transplanting individuals from natural clam beds to a closed fishing area in an effort to rebuild relatively high-density patches of Spisula solida. For this purpose, clams were equally partitioned into two groups (undersize and legal clams) and transplanted at a density of 40 clams m−2 into two areas 50 m2. Transplanted and control clams were sampled to estimate survival, condition index, biochemical composition, and reproductive condition. Generally, the physiological condition of clams was not affected by the method of transplanting. One year after transplanting, survival was 45%. The increase in local abundance of mature clams should facilitate successful fertilization and increase the residual reproductive value of each clam relative to its pre-transplant value. Transplanting undersize clams may be more advantageous because they are more likely to spawn at least once before harvest. The experiments demonstrate that spawner transplants may strengthen S. solida populations and can be used in stock-enhancement programmes which, in conjunction with effective management measures, can contribute to the sustainability of the S. solida fishery.</description><identifier>ISSN: 1054-3139</identifier><identifier>EISSN: 1095-9289</identifier><identifier>DOI: 10.1093/icesjms/fsm167</identifier><language>eng</language><publisher>Oxford University Press</publisher><subject>clams ; Marine ; population enhancement ; restoration ; Spisula solida ; transplantation</subject><ispartof>ICES journal of marine science, 2008-01, Vol.65 (1), p.60-64</ispartof><rights>2007 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. 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B., Matias, D., Ben-Hamadou, R., and Arnold, W. S. 2008. Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability. – ICES Journal of Marine Science, 65: 60–64. Populations of commercially important bivalves along the coast of Portugal are depleted as a consequence of natural and anthropogenic causes. A pilot experiment was designed to determine the feasibility of transplanting individuals from natural clam beds to a closed fishing area in an effort to rebuild relatively high-density patches of Spisula solida. For this purpose, clams were equally partitioned into two groups (undersize and legal clams) and transplanted at a density of 40 clams m−2 into two areas 50 m2. Transplanted and control clams were sampled to estimate survival, condition index, biochemical composition, and reproductive condition. Generally, the physiological condition of clams was not affected by the method of transplanting. One year after transplanting, survival was 45%. The increase in local abundance of mature clams should facilitate successful fertilization and increase the residual reproductive value of each clam relative to its pre-transplant value. Transplanting undersize clams may be more advantageous because they are more likely to spawn at least once before harvest. The experiments demonstrate that spawner transplants may strengthen S. solida populations and can be used in stock-enhancement programmes which, in conjunction with effective management measures, can contribute to the sustainability of the S. solida fishery.</description><subject>clams</subject><subject>Marine</subject><subject>population enhancement</subject><subject>restoration</subject><subject>Spisula solida</subject><subject>transplantation</subject><issn>1054-3139</issn><issn>1095-9289</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkM1P1UAUxRuiCYhuXc-KyKIwH52-lp0-BUyeMVEWhs1kPm55g9NOmTt9yh_B_0yhxK2re3Pu75zknqJ4z-gJo6049RbwtsfTDntWr_aKg1mVZcub9tXTLqtSMNHuF28Qbymlq6qmB8XDDzCTD84PN2TntQlAcNR_Bkhk1NluAUnsSN4CiTtIncctOPJz9DgFTTAG7zT58C2GMKHVZ-ST3-kw5xyfEU3GBMH3ftDpntg45OTNlH0cSI7kOWnWccKsZ8T44PP92-J1pwPCu5d5WFydf7laX5ab7xdf1x83pRUNz2XNGeVON5ILY1rRGUOldZ2wTtYceNNwQS1vnRBU1sANo0IzWAnLnNSVE4fF0RI7png3AWbVe7QQgh4gTqg45TWtGjaDJwtoU0RM0Kkx-X7-RzGqnkpXL6WrpfTZcLwY4jT-ny0X1mOGv_9onX6r-bqS6vLXtZLVtfi8vhBqIx4BRjGYvw</recordid><startdate>200801</startdate><enddate>200801</enddate><creator>Joaquim, Sandra</creator><creator>Gaspar, Miguel B.</creator><creator>Matias, Domitília</creator><creator>Ben-Hamadou, Radhouan</creator><creator>Arnold, William S.</creator><general>Oxford University Press</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TN</scope><scope>7U6</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>H98</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>200801</creationdate><title>Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability</title><author>Joaquim, Sandra ; Gaspar, Miguel B. ; Matias, Domitília ; Ben-Hamadou, Radhouan ; Arnold, William S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c382t-62102da8523bb93fbb05cdf3cd562e288230c29d33056e2b103a1e73c1d5a4d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>clams</topic><topic>Marine</topic><topic>population enhancement</topic><topic>restoration</topic><topic>Spisula solida</topic><topic>transplantation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Joaquim, Sandra</creatorcontrib><creatorcontrib>Gaspar, Miguel B.</creatorcontrib><creatorcontrib>Matias, Domitília</creatorcontrib><creatorcontrib>Ben-Hamadou, Radhouan</creatorcontrib><creatorcontrib>Arnold, William S.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Environmental Sciences and Pollution Management</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) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Aquaculture Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>ICES journal of marine science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Joaquim, Sandra</au><au>Gaspar, Miguel B.</au><au>Matias, Domitília</au><au>Ben-Hamadou, Radhouan</au><au>Arnold, William S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability</atitle><jtitle>ICES journal of marine science</jtitle><date>2008-01</date><risdate>2008</risdate><volume>65</volume><issue>1</issue><spage>60</spage><epage>64</epage><pages>60-64</pages><issn>1054-3139</issn><eissn>1095-9289</eissn><abstract>Joaquim, S., Gaspar, M. B., Matias, D., Ben-Hamadou, R., and Arnold, W. S. 2008. Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability. – ICES Journal of Marine Science, 65: 60–64. Populations of commercially important bivalves along the coast of Portugal are depleted as a consequence of natural and anthropogenic causes. A pilot experiment was designed to determine the feasibility of transplanting individuals from natural clam beds to a closed fishing area in an effort to rebuild relatively high-density patches of Spisula solida. For this purpose, clams were equally partitioned into two groups (undersize and legal clams) and transplanted at a density of 40 clams m−2 into two areas 50 m2. Transplanted and control clams were sampled to estimate survival, condition index, biochemical composition, and reproductive condition. Generally, the physiological condition of clams was not affected by the method of transplanting. One year after transplanting, survival was 45%. The increase in local abundance of mature clams should facilitate successful fertilization and increase the residual reproductive value of each clam relative to its pre-transplant value. Transplanting undersize clams may be more advantageous because they are more likely to spawn at least once before harvest. The experiments demonstrate that spawner transplants may strengthen S. solida populations and can be used in stock-enhancement programmes which, in conjunction with effective management measures, can contribute to the sustainability of the S. solida fishery.</abstract><pub>Oxford University Press</pub><doi>10.1093/icesjms/fsm167</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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subjects | clams Marine population enhancement restoration Spisula solida transplantation |
title | Rebuilding viable spawner patches of the overfished Spisula solida (Mollusca: Bivalvia): a preliminary contribution to fishery sustainability |
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