Reproductive biology of albacore Thunnus alalunga
Reproductive variables in albacore Thunnus alalunga were evaluated by gonad histology in samples of 132 males (58–118 cm fork length, LF) and 112 females (59–101 cm LF) that were collected from the western North Pacific Ocean from 2001 to 2006. In the sex ratio examination, males greatly outnumbered...
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| Veröffentlicht in: | Journal of fish biology 2010-07, Vol.77 (1), p.119-136 |
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| creator | Chen, K.-S. Crone, P. R. Hsu, C.-C. |
| description | Reproductive variables in albacore Thunnus alalunga were evaluated by gonad histology in samples of 132 males (58–118 cm fork length, LF) and 112 females (59–101 cm LF) that were collected from the western North Pacific Ocean from 2001 to 2006. In the sex ratio examination, males greatly outnumbered females in large adult fish (LF > 100 cm). Thunnus alalunga exhibited a protracted spawning period from March to September in the waters off eastern Taiwan and the Philippines, and the peak spawning activity occurred in March and April. Minimum sizes associated with the classification of mature fish were 78 and 83 cm LF for males and females, respectively. In addition, the largest LF of immature fish were 93 cm for males and 94 cm for females. The spawning frequency estimate in April was 1·7 days. Batch‐fecundity estimates of 21 females (89–99 cm LF) ranged between 0·17 and 1·66 million eggs (mean ±s.d. = 0·94 ± 0·43). The relative fecundity estimates of the 21 females ranged between 9·2 and 92·4 oocytes g−1 body mass (mean ±s.d. = 50·5 ± 22·8). The results presented in this study provide increased information regarding this species' reproductive‐related characteristics than are currently available in stock status determinations. |
| doi_str_mv | 10.1111/j.1095-8649.2010.02662.x |
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R. ; Hsu, C.-C.</creator><creatorcontrib>Chen, K.-S. ; Crone, P. R. ; Hsu, C.-C.</creatorcontrib><description>Reproductive variables in albacore Thunnus alalunga were evaluated by gonad histology in samples of 132 males (58–118 cm fork length, LF) and 112 females (59–101 cm LF) that were collected from the western North Pacific Ocean from 2001 to 2006. In the sex ratio examination, males greatly outnumbered females in large adult fish (LF > 100 cm). Thunnus alalunga exhibited a protracted spawning period from March to September in the waters off eastern Taiwan and the Philippines, and the peak spawning activity occurred in March and April. Minimum sizes associated with the classification of mature fish were 78 and 83 cm LF for males and females, respectively. In addition, the largest LF of immature fish were 93 cm for males and 94 cm for females. The spawning frequency estimate in April was 1·7 days. Batch‐fecundity estimates of 21 females (89–99 cm LF) ranged between 0·17 and 1·66 million eggs (mean ±s.d. = 0·94 ± 0·43). The relative fecundity estimates of the 21 females ranged between 9·2 and 92·4 oocytes g−1 body mass (mean ±s.d. = 50·5 ± 22·8). The results presented in this study provide increased information regarding this species' reproductive‐related characteristics than are currently available in stock status determinations.</description><identifier>ISSN: 0022-1112</identifier><identifier>EISSN: 1095-8649</identifier><identifier>DOI: 10.1111/j.1095-8649.2010.02662.x</identifier><identifier>PMID: 20646142</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Animals ; batch fecundity ; Female ; Fertility ; Gonads - growth & development ; Male ; North Pacific ; oogenesis ; Pacific Ocean ; Philippines ; Reproduction - physiology ; Seasons ; Sex Ratio ; Sexual Maturation ; sexual maturity ; spawning frequency ; spermatogenesis ; Taiwan ; Thunnus alalunga ; Tuna - physiology</subject><ispartof>Journal of fish biology, 2010-07, Vol.77 (1), p.119-136</ispartof><rights>Journal compilation © 2010 The Fisheries Society of the British Isles. 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R.</creatorcontrib><creatorcontrib>Hsu, C.-C.</creatorcontrib><title>Reproductive biology of albacore Thunnus alalunga</title><title>Journal of fish biology</title><addtitle>J Fish Biol</addtitle><description>Reproductive variables in albacore Thunnus alalunga were evaluated by gonad histology in samples of 132 males (58–118 cm fork length, LF) and 112 females (59–101 cm LF) that were collected from the western North Pacific Ocean from 2001 to 2006. In the sex ratio examination, males greatly outnumbered females in large adult fish (LF > 100 cm). Thunnus alalunga exhibited a protracted spawning period from March to September in the waters off eastern Taiwan and the Philippines, and the peak spawning activity occurred in March and April. Minimum sizes associated with the classification of mature fish were 78 and 83 cm LF for males and females, respectively. In addition, the largest LF of immature fish were 93 cm for males and 94 cm for females. The spawning frequency estimate in April was 1·7 days. Batch‐fecundity estimates of 21 females (89–99 cm LF) ranged between 0·17 and 1·66 million eggs (mean ±s.d. = 0·94 ± 0·43). The relative fecundity estimates of the 21 females ranged between 9·2 and 92·4 oocytes g−1 body mass (mean ±s.d. = 50·5 ± 22·8). The results presented in this study provide increased information regarding this species' reproductive‐related characteristics than are currently available in stock status determinations.</description><subject>Animals</subject><subject>batch fecundity</subject><subject>Female</subject><subject>Fertility</subject><subject>Gonads - growth & development</subject><subject>Male</subject><subject>North Pacific</subject><subject>oogenesis</subject><subject>Pacific Ocean</subject><subject>Philippines</subject><subject>Reproduction - physiology</subject><subject>Seasons</subject><subject>Sex Ratio</subject><subject>Sexual Maturation</subject><subject>sexual maturity</subject><subject>spawning frequency</subject><subject>spermatogenesis</subject><subject>Taiwan</subject><subject>Thunnus alalunga</subject><subject>Tuna - physiology</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>eNqNkE9PwjAYhxujEUS_gtnN0-bbv9sOHpQISggmivHYdFuLw8FwZQrf3o4hV-2lzdvn97bvg5CHIcBuXc8DDDH3I8HigICrAhGCBJsj1D1cHKMuACG-40kHnVk7B4CYxvQUdQgIJjAjXYSf9aoqszpd51_aS_KyKGdbrzSeKhKVlpX2pu_1cllbV1BFvZypc3RiVGH1xX7vodfB_bT_4I-fho_927GfcmDEZwoLbBgQSkATRYAYwDwzmYFMaKVdkcWUY01DDiGNYsw1J4bhKIpEJhLaQ1dtX_e_z1rbtVzkNtVFoZa6rK0MOeMCu3n-Jilzo4c7MmrJtCqtrbSRqypfqGorMcjGrJzLRqBsBMrGrNyZlRsXvdw_UicLnR2CvyodcNMC33mht_9uLEeDu-bk8n6bz-1abw55VX1IETpJ8m0ylHgSjkf4hcqI_gCnYZNv</recordid><startdate>201007</startdate><enddate>201007</enddate><creator>Chen, K.-S.</creator><creator>Crone, P. R.</creator><creator>Hsu, C.-C.</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>Reproductive biology of albacore Thunnus alalunga</title><author>Chen, K.-S. ; Crone, P. R. ; Hsu, C.-C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5042-4a161f402320e2a202f015dfdf0d6eae0e249351e3750738915e52f418886d6b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Animals</topic><topic>batch fecundity</topic><topic>Female</topic><topic>Fertility</topic><topic>Gonads - growth & development</topic><topic>Male</topic><topic>North Pacific</topic><topic>oogenesis</topic><topic>Pacific Ocean</topic><topic>Philippines</topic><topic>Reproduction - physiology</topic><topic>Seasons</topic><topic>Sex Ratio</topic><topic>Sexual Maturation</topic><topic>sexual maturity</topic><topic>spawning frequency</topic><topic>spermatogenesis</topic><topic>Taiwan</topic><topic>Thunnus alalunga</topic><topic>Tuna - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, K.-S.</creatorcontrib><creatorcontrib>Crone, P. R.</creatorcontrib><creatorcontrib>Hsu, C.-C.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Oceanic 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) Professional</collection><jtitle>Journal of fish biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, K.-S.</au><au>Crone, P. R.</au><au>Hsu, C.-C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproductive biology of albacore Thunnus alalunga</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>119</spage><epage>136</epage><pages>119-136</pages><issn>0022-1112</issn><eissn>1095-8649</eissn><abstract>Reproductive variables in albacore Thunnus alalunga were evaluated by gonad histology in samples of 132 males (58–118 cm fork length, LF) and 112 females (59–101 cm LF) that were collected from the western North Pacific Ocean from 2001 to 2006. In the sex ratio examination, males greatly outnumbered females in large adult fish (LF > 100 cm). Thunnus alalunga exhibited a protracted spawning period from March to September in the waters off eastern Taiwan and the Philippines, and the peak spawning activity occurred in March and April. Minimum sizes associated with the classification of mature fish were 78 and 83 cm LF for males and females, respectively. In addition, the largest LF of immature fish were 93 cm for males and 94 cm for females. The spawning frequency estimate in April was 1·7 days. Batch‐fecundity estimates of 21 females (89–99 cm LF) ranged between 0·17 and 1·66 million eggs (mean ±s.d. = 0·94 ± 0·43). The relative fecundity estimates of the 21 females ranged between 9·2 and 92·4 oocytes g−1 body mass (mean ±s.d. = 50·5 ± 22·8). The results presented in this study provide increased information regarding this species' reproductive‐related characteristics than are currently available in stock status determinations.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>20646142</pmid><doi>10.1111/j.1095-8649.2010.02662.x</doi><tpages>18</tpages></addata></record> |
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| source | Wiley Online Library - AutoHoldings Journals; MEDLINE |
| subjects | Animals batch fecundity Female Fertility Gonads - growth & development Male North Pacific oogenesis Pacific Ocean Philippines Reproduction - physiology Seasons Sex Ratio Sexual Maturation sexual maturity spawning frequency spermatogenesis Taiwan Thunnus alalunga Tuna - physiology |
| title | Reproductive biology of albacore Thunnus alalunga |
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