Sexual maturity cycle and spawning of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait
Female sexual maturation cycle and the main spawning time of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait were studied through regularly collected samples during 1 year starting in spring 2003. Samples were collected from the southern slope of the Davis Strait Ridge between Can...
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| Veröffentlicht in: | Journal of fish biology 2010-07, Vol.77 (1), p.211-226 |
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| creator | Gundersen, A. C. Stenberg, C. Fossen, I. Lyberth, B. Boje, J. Jørgensen, O. A. |
| description | Female sexual maturation cycle and the main spawning time of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait were studied through regularly collected samples during 1 year starting in spring 2003. Samples were collected from the southern slope of the Davis Strait Ridge between Canada and Greenland in the depth range 1000–1500 m. Female sexual maturation was described using different approaches: gonado‐somatic index, visual macroscopic maturity stage index, histological microscopic maturity index and oocyte diameter measurements. A significant increase in the gonado‐somatic index was seen from September onwards until February with a maximum estimated value of 18%. The proportion of mature fish increased from December until March. At the same time, the proportion of females with a low gonado‐somatic index also increased from February, indicating that spawning had occurred and females were recovering. Oocyte diameter distribution revealed a leading cohort development during autumn through to December to February. A coupling between sexual maturity and fish condition was seen for females in maturing condition indicating a steady build up of stored energy in the liver from June to November. |
| doi_str_mv | 10.1111/j.1095-8649.2010.02671.x |
| format | Article |
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C. ; Stenberg, C. ; Fossen, I. ; Lyberth, B. ; Boje, J. ; Jørgensen, O. A.</creator><creatorcontrib>Gundersen, A. C. ; Stenberg, C. ; Fossen, I. ; Lyberth, B. ; Boje, J. ; Jørgensen, O. A.</creatorcontrib><description>Female sexual maturation cycle and the main spawning time of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait were studied through regularly collected samples during 1 year starting in spring 2003. Samples were collected from the southern slope of the Davis Strait Ridge between Canada and Greenland in the depth range 1000–1500 m. Female sexual maturation was described using different approaches: gonado‐somatic index, visual macroscopic maturity stage index, histological microscopic maturity index and oocyte diameter measurements. A significant increase in the gonado‐somatic index was seen from September onwards until February with a maximum estimated value of 18%. The proportion of mature fish increased from December until March. At the same time, the proportion of females with a low gonado‐somatic index also increased from February, indicating that spawning had occurred and females were recovering. Oocyte diameter distribution revealed a leading cohort development during autumn through to December to February. A coupling between sexual maturity and fish condition was seen for females in maturing condition indicating a steady build up of stored energy in the liver from June to November.</description><identifier>ISSN: 0022-1112</identifier><identifier>EISSN: 1095-8649</identifier><identifier>DOI: 10.1111/j.1095-8649.2010.02671.x</identifier><identifier>PMID: 20646148</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Animals ; Canada ; condition ; deep sea ; Female ; Flounder - physiology ; Greenland ; Greenland waters ; Marine ; maturation ; North Atlantic Ocean ; Oocytes - physiology ; Ovary - physiology ; Reinhardtius hippoglossoides ; Reproduction ; Sexual Maturation ; spawning season</subject><ispartof>Journal of fish biology, 2010-07, Vol.77 (1), p.211-226</ispartof><rights>2010 The Authors. 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C.</creatorcontrib><creatorcontrib>Stenberg, C.</creatorcontrib><creatorcontrib>Fossen, I.</creatorcontrib><creatorcontrib>Lyberth, B.</creatorcontrib><creatorcontrib>Boje, J.</creatorcontrib><creatorcontrib>Jørgensen, O. A.</creatorcontrib><title>Sexual maturity cycle and spawning of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait</title><title>Journal of fish biology</title><addtitle>J Fish Biol</addtitle><description>Female sexual maturation cycle and the main spawning time of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait were studied through regularly collected samples during 1 year starting in spring 2003. Samples were collected from the southern slope of the Davis Strait Ridge between Canada and Greenland in the depth range 1000–1500 m. Female sexual maturation was described using different approaches: gonado‐somatic index, visual macroscopic maturity stage index, histological microscopic maturity index and oocyte diameter measurements. A significant increase in the gonado‐somatic index was seen from September onwards until February with a maximum estimated value of 18%. The proportion of mature fish increased from December until March. At the same time, the proportion of females with a low gonado‐somatic index also increased from February, indicating that spawning had occurred and females were recovering. Oocyte diameter distribution revealed a leading cohort development during autumn through to December to February. A coupling between sexual maturity and fish condition was seen for females in maturing condition indicating a steady build up of stored energy in the liver from June to November.</description><subject>Animals</subject><subject>Canada</subject><subject>condition</subject><subject>deep sea</subject><subject>Female</subject><subject>Flounder - physiology</subject><subject>Greenland</subject><subject>Greenland waters</subject><subject>Marine</subject><subject>maturation</subject><subject>North Atlantic Ocean</subject><subject>Oocytes - physiology</subject><subject>Ovary - physiology</subject><subject>Reinhardtius hippoglossoides</subject><subject>Reproduction</subject><subject>Sexual Maturation</subject><subject>spawning season</subject><issn>0022-1112</issn><issn>1095-8649</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc2O0zAUhS0EYsrAKyDvWKX4L4m9YMF0mAIqIGZAsLOc-GbikibBdpj27XHo0C1Ysmxdf-faPgchTMmSpvFyu6RE5ZkshFoykqqEFSVd7h-gxengIVoQwliWeHaGnoSwJYQorvhjdMZIIQoq5AK1N7CfTId3Jk7exQOuD3UH2PQWh9Hc9a6_xUOD1x6g7-ZqazpXTRFfg-tb4210U8CtG8fhthtCGJyFgF2PYwv40vxyAd9Eb1x8ih41pgvw7H49R1-v3nxZvc02n9bvVq83WS24pJmltqpUWYNQBpQkKk2qasUFyKpQ1DaGl40VJecF5ZZJaUnJZEUUNTavGT9HL459Rz_8nCBEvXOhhi49HoYp6DIXeZF8yf9NckEIlZInUh7J2qcvemj06N3O-IOmRM-B6K2efdez73oORP8JRO-T9Pn9JVO1A3sS_k0gAa-OwJ3r4PDfjfX7q4t5l_TZUe9ChP1Jb_wPXZS8zPW3j2u9uv4uLj5vPmjOfwMHGKk3</recordid><startdate>201007</startdate><enddate>201007</enddate><creator>Gundersen, A. C.</creator><creator>Stenberg, C.</creator><creator>Fossen, I.</creator><creator>Lyberth, B.</creator><creator>Boje, J.</creator><creator>Jørgensen, O. A.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QG</scope><scope>7SN</scope><scope>7TN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>201007</creationdate><title>Sexual maturity cycle and spawning of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait</title><author>Gundersen, A. C. ; Stenberg, C. ; Fossen, I. ; Lyberth, B. ; Boje, J. ; Jørgensen, O. 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C.</creatorcontrib><creatorcontrib>Stenberg, C.</creatorcontrib><creatorcontrib>Fossen, I.</creatorcontrib><creatorcontrib>Lyberth, B.</creatorcontrib><creatorcontrib>Boje, J.</creatorcontrib><creatorcontrib>Jørgensen, O. 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C.</au><au>Stenberg, C.</au><au>Fossen, I.</au><au>Lyberth, B.</au><au>Boje, J.</au><au>Jørgensen, O. A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sexual maturity cycle and spawning of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait</atitle><jtitle>Journal of fish biology</jtitle><addtitle>J Fish Biol</addtitle><date>2010-07</date><risdate>2010</risdate><volume>77</volume><issue>1</issue><spage>211</spage><epage>226</epage><pages>211-226</pages><issn>0022-1112</issn><eissn>1095-8649</eissn><abstract>Female sexual maturation cycle and the main spawning time of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait were studied through regularly collected samples during 1 year starting in spring 2003. Samples were collected from the southern slope of the Davis Strait Ridge between Canada and Greenland in the depth range 1000–1500 m. Female sexual maturation was described using different approaches: gonado‐somatic index, visual macroscopic maturity stage index, histological microscopic maturity index and oocyte diameter measurements. A significant increase in the gonado‐somatic index was seen from September onwards until February with a maximum estimated value of 18%. The proportion of mature fish increased from December until March. At the same time, the proportion of females with a low gonado‐somatic index also increased from February, indicating that spawning had occurred and females were recovering. Oocyte diameter distribution revealed a leading cohort development during autumn through to December to February. A coupling between sexual maturity and fish condition was seen for females in maturing condition indicating a steady build up of stored energy in the liver from June to November.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>20646148</pmid><doi>10.1111/j.1095-8649.2010.02671.x</doi><tpages>16</tpages></addata></record> |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Animals Canada condition deep sea Female Flounder - physiology Greenland Greenland waters Marine maturation North Atlantic Ocean Oocytes - physiology Ovary - physiology Reinhardtius hippoglossoides Reproduction Sexual Maturation spawning season |
| title | Sexual maturity cycle and spawning of Greenland halibut Reinhardtius hippoglossoides in the Davis Strait |
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