Physiological responses of juvenile wedge sole Dicologoglossa cuneata (Moreau) to high stocking density
Physiological responses to a high stocking density were tested in juvenile wedge sole Dicologoglossa cuneata (Moreau). Fish were kept at low (1 kg m−2), medium (3 kg m−2) and high (9 kg m−2) stocking densities for 22 days. No differences in the weight, length, survival and hepatosomatic index were o...
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Veröffentlicht in: | Aquaculture research 2009-04, Vol.40 (7), p.790-797 |
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creator | Herrera, Marcelino Vargas-Chacoff, Luis Hachero, Ismael Ruíz-Jarabo, Ignacio Rodiles, Ana Navas, José I. Mancera, Juan M. |
description | Physiological responses to a high stocking density were tested in juvenile wedge sole Dicologoglossa cuneata (Moreau). Fish were kept at low (1 kg m−2), medium (3 kg m−2) and high (9 kg m−2) stocking densities for 22 days. No differences in the weight, length, survival and hepatosomatic index were observed among treatments. Basal plasma cortisol and osmolality were found to be directly and positively related to stocking density. A mild increase in plasma glucose was seen at medium density, and plasma protein was elevated at medium and high densities. The liver glucose and glycogen content was inversely related to stocking density. The liver triglyceride level was significantly elevated at the highest density, and the α‐amino acid content decreased at the highest density. In muscle, glucose levels were significantly higher in fish kept at the lowest density; the α‐amino acid content was elevated in fish kept at high density. In conclusion, plasma cortisol levels indicated an increasing stress level depending on the culture density, but significant changes in energy reserves did not occur in tissue (mainly liver and muscle glycogen and glucose reserves were significantly affected). |
doi_str_mv | 10.1111/j.1365-2109.2008.02162.x |
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Fish were kept at low (1 kg m−2), medium (3 kg m−2) and high (9 kg m−2) stocking densities for 22 days. No differences in the weight, length, survival and hepatosomatic index were observed among treatments. Basal plasma cortisol and osmolality were found to be directly and positively related to stocking density. A mild increase in plasma glucose was seen at medium density, and plasma protein was elevated at medium and high densities. The liver glucose and glycogen content was inversely related to stocking density. The liver triglyceride level was significantly elevated at the highest density, and the α‐amino acid content decreased at the highest density. In muscle, glucose levels were significantly higher in fish kept at the lowest density; the α‐amino acid content was elevated in fish kept at high density. In conclusion, plasma cortisol levels indicated an increasing stress level depending on the culture density, but significant changes in energy reserves did not occur in tissue (mainly liver and muscle glycogen and glucose reserves were significantly affected).</description><identifier>ISSN: 1355-557X</identifier><identifier>EISSN: 1365-2109</identifier><identifier>DOI: 10.1111/j.1365-2109.2008.02162.x</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>cortisol ; density ; Dicologoglossa cuneata ; Marine ; stress ; wedge sole</subject><ispartof>Aquaculture research, 2009-04, Vol.40 (7), p.790-797</ispartof><rights>2009 The Authors. 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Fish were kept at low (1 kg m−2), medium (3 kg m−2) and high (9 kg m−2) stocking densities for 22 days. No differences in the weight, length, survival and hepatosomatic index were observed among treatments. Basal plasma cortisol and osmolality were found to be directly and positively related to stocking density. A mild increase in plasma glucose was seen at medium density, and plasma protein was elevated at medium and high densities. The liver glucose and glycogen content was inversely related to stocking density. The liver triglyceride level was significantly elevated at the highest density, and the α‐amino acid content decreased at the highest density. In muscle, glucose levels were significantly higher in fish kept at the lowest density; the α‐amino acid content was elevated in fish kept at high density. In conclusion, plasma cortisol levels indicated an increasing stress level depending on the culture density, but significant changes in energy reserves did not occur in tissue (mainly liver and muscle glycogen and glucose reserves were significantly affected).</description><subject>cortisol</subject><subject>density</subject><subject>Dicologoglossa cuneata</subject><subject>Marine</subject><subject>stress</subject><subject>wedge sole</subject><issn>1355-557X</issn><issn>1365-2109</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqNkF1PwjAUhhejiYj-h14Zvdhsu3UfF14QBDQBNX4E7pquOxuFseK6Cfv3bmK49tz0Tfo-JzmPZSGCHdLO3cohrs9sSnDkUIxDB1PiU2d_YvWOH6ddZsxmLFicWxfGrDAmHnZJz8pel41ROteZkiJHJZitLgwYpFO0qr-hUDmgHSQZIKPb-KBkV9ZZro0RSNYFiEqgm5kuQdS3qNJoqbIlMpWWa1VkKIHCqKq5tM5SkRu4-nv71ud49DF8tKcvk6fhYGpLN6TUTiGmftrl0PekFwkALwwiGiYe9VlKcRAzP2JeADRgsUghYix2BUQykTQIpdu3rg97t6X-qsFUfKOMhDwXBejacIoZIxHx22J4KMqyvaSElG9LtRFlwwnmnVm-4p1A3gnknVn-a5bvW_T-gO5aOc2_OT54G3Wp5e0Dr0wF-yMvyjX3AzdgfP484TM2nnmL9zmfuD_HZJAB</recordid><startdate>200904</startdate><enddate>200904</enddate><creator>Herrera, Marcelino</creator><creator>Vargas-Chacoff, Luis</creator><creator>Hachero, Ismael</creator><creator>Ruíz-Jarabo, Ignacio</creator><creator>Rodiles, Ana</creator><creator>Navas, José I.</creator><creator>Mancera, Juan M.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>F1W</scope><scope>H95</scope><scope>H98</scope><scope>L.G</scope></search><sort><creationdate>200904</creationdate><title>Physiological responses of juvenile wedge sole Dicologoglossa cuneata (Moreau) to high stocking density</title><author>Herrera, Marcelino ; Vargas-Chacoff, Luis ; Hachero, Ismael ; Ruíz-Jarabo, Ignacio ; Rodiles, Ana ; Navas, José I. ; Mancera, Juan M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3822-feb26fc382864c49aee487928d4265f207b569547e275bafe955b3ae9cdc278c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>cortisol</topic><topic>density</topic><topic>Dicologoglossa cuneata</topic><topic>Marine</topic><topic>stress</topic><topic>wedge sole</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Herrera, Marcelino</creatorcontrib><creatorcontrib>Vargas-Chacoff, Luis</creatorcontrib><creatorcontrib>Hachero, Ismael</creatorcontrib><creatorcontrib>Ruíz-Jarabo, Ignacio</creatorcontrib><creatorcontrib>Rodiles, Ana</creatorcontrib><creatorcontrib>Navas, José I.</creatorcontrib><creatorcontrib>Mancera, Juan M.</creatorcontrib><collection>Istex</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) Aquaculture Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Aquaculture research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Herrera, Marcelino</au><au>Vargas-Chacoff, Luis</au><au>Hachero, Ismael</au><au>Ruíz-Jarabo, Ignacio</au><au>Rodiles, Ana</au><au>Navas, José I.</au><au>Mancera, Juan M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Physiological responses of juvenile wedge sole Dicologoglossa cuneata (Moreau) to high stocking density</atitle><jtitle>Aquaculture research</jtitle><date>2009-04</date><risdate>2009</risdate><volume>40</volume><issue>7</issue><spage>790</spage><epage>797</epage><pages>790-797</pages><issn>1355-557X</issn><eissn>1365-2109</eissn><abstract>Physiological responses to a high stocking density were tested in juvenile wedge sole Dicologoglossa cuneata (Moreau). Fish were kept at low (1 kg m−2), medium (3 kg m−2) and high (9 kg m−2) stocking densities for 22 days. No differences in the weight, length, survival and hepatosomatic index were observed among treatments. Basal plasma cortisol and osmolality were found to be directly and positively related to stocking density. A mild increase in plasma glucose was seen at medium density, and plasma protein was elevated at medium and high densities. The liver glucose and glycogen content was inversely related to stocking density. The liver triglyceride level was significantly elevated at the highest density, and the α‐amino acid content decreased at the highest density. In muscle, glucose levels were significantly higher in fish kept at the lowest density; the α‐amino acid content was elevated in fish kept at high density. In conclusion, plasma cortisol levels indicated an increasing stress level depending on the culture density, but significant changes in energy reserves did not occur in tissue (mainly liver and muscle glycogen and glucose reserves were significantly affected).</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1365-2109.2008.02162.x</doi><tpages>8</tpages></addata></record> |
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subjects | cortisol density Dicologoglossa cuneata Marine stress wedge sole |
title | Physiological responses of juvenile wedge sole Dicologoglossa cuneata (Moreau) to high stocking density |
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