Variations in the instantaneous mortality rate between larval patches of Pacific bluefin tuna Thunnus orientalis in the northwestern Pacific Ocean
We followed three patches of larval Pacific bluefin tuna ( Thunnus orientalis) using Lagrangian drifters in 2004 and 2005 from May to June and determined the age-specific larval instantaneous mortality rates, which were estimated to be between 0.06 and 2.75 day −1. The mortality rates differed signi...
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| Veröffentlicht in: | Fisheries research 2008-03, Vol.89 (3), p.248-256 |
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| creator | Satoh, Keisuke Tanaka, Yosuke Iwahashi, Masayuki |
| description | We followed three patches of larval Pacific bluefin tuna (
Thunnus orientalis) using Lagrangian drifters in 2004 and 2005 from May to June and determined the age-specific larval instantaneous mortality rates, which were estimated to be between 0.06 and 2.75
day
−1. The mortality rates differed significantly between patches and between ages within the same patch, which were higher than most of the estimations for other marine fish larvae. The results indicate that for the purpose of understanding the process of the larval survival, the use of larval patches is appropriate as a unit of observation. Evidence of the occurrence for net avoidance is presented and also it is concluded that net extrusion was observed for the larvae. Length-specific catch probability of the larvae was estimated to correct for length distribution biases derived from the net avoidance and net extrusion. |
| doi_str_mv | 10.1016/j.fishres.2007.09.003 |
| format | Article |
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Thunnus orientalis) using Lagrangian drifters in 2004 and 2005 from May to June and determined the age-specific larval instantaneous mortality rates, which were estimated to be between 0.06 and 2.75
day
−1. The mortality rates differed significantly between patches and between ages within the same patch, which were higher than most of the estimations for other marine fish larvae. The results indicate that for the purpose of understanding the process of the larval survival, the use of larval patches is appropriate as a unit of observation. Evidence of the occurrence for net avoidance is presented and also it is concluded that net extrusion was observed for the larvae. Length-specific catch probability of the larvae was estimated to correct for length distribution biases derived from the net avoidance and net extrusion.</description><identifier>ISSN: 0165-7836</identifier><identifier>EISSN: 1872-6763</identifier><identifier>DOI: 10.1016/j.fishres.2007.09.003</identifier><identifier>CODEN: FISRDJ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Applied ecology ; Biological and medical sciences ; Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.) ; Fundamental and applied biological sciences. Psychology ; Lagrangian drifter ; Larval instantaneous mortality ; Larval patch ; Marine ; Pacific bluefin tuna ; Sea water ecosystems ; Synecology ; Thunnus orientalis</subject><ispartof>Fisheries research, 2008-03, Vol.89 (3), p.248-256</ispartof><rights>2007 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-4f3e7226c706b01fbe5c9f5f845eb433d0a96db2b758e952f0544d28c0d96b6f3</citedby><cites>FETCH-LOGICAL-c467t-4f3e7226c706b01fbe5c9f5f845eb433d0a96db2b758e952f0544d28c0d96b6f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.fishres.2007.09.003$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20181961$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Satoh, Keisuke</creatorcontrib><creatorcontrib>Tanaka, Yosuke</creatorcontrib><creatorcontrib>Iwahashi, Masayuki</creatorcontrib><title>Variations in the instantaneous mortality rate between larval patches of Pacific bluefin tuna Thunnus orientalis in the northwestern Pacific Ocean</title><title>Fisheries research</title><description>We followed three patches of larval Pacific bluefin tuna (
Thunnus orientalis) using Lagrangian drifters in 2004 and 2005 from May to June and determined the age-specific larval instantaneous mortality rates, which were estimated to be between 0.06 and 2.75
day
−1. The mortality rates differed significantly between patches and between ages within the same patch, which were higher than most of the estimations for other marine fish larvae. The results indicate that for the purpose of understanding the process of the larval survival, the use of larval patches is appropriate as a unit of observation. Evidence of the occurrence for net avoidance is presented and also it is concluded that net extrusion was observed for the larvae. 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Psychology</subject><subject>Lagrangian drifter</subject><subject>Larval instantaneous mortality</subject><subject>Larval patch</subject><subject>Marine</subject><subject>Pacific bluefin tuna</subject><subject>Sea water ecosystems</subject><subject>Synecology</subject><subject>Thunnus orientalis</subject><issn>0165-7836</issn><issn>1872-6763</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkcFKJDEURYMo2Op8wkA2uqsySVWSymoYxJkRBF04sw2p1AuVpjrVJinF3_CLJ003vRUCb3PuvXnvIvSdkpoSKm7XtfNpjJBqRoisiaoJaU7QinaSVUKK5hStCscr2TXiHF2ktCYFlIKu0Oc_E73Jfg4J-4DzCGWkbEJ5MC8Jb-aYzeTzB44mA-4hvwMEPJn4Zia8NdmOkPDs8LOx3nmL-2kBt7NagsEv4xJCcZmjh7DzOaaE4ju-Q8oQw1H7ZMGEK3TmzJTg22Feor-_7l_u_lSPT78f7n4-VrYVMleta0AyJqwkoifU9cCtctx1LYe-bZqBGCWGnvWSd6A4c4S37cA6SwYleuGaS3Sz993G-XUpP9EbnyxM035zzYgUvBXiS5C2HVdCsQLyPWjjnFIEp7fRb0z80JToXVV6rQ9V6V1Vmihdqiq660OASdZMLppgfTqKGaEdVYIW7seeg3KWNw9RJ1vuamHwEWzWw-y_SPoPLWuwXQ</recordid><startdate>20080301</startdate><enddate>20080301</enddate><creator>Satoh, Keisuke</creator><creator>Tanaka, Yosuke</creator><creator>Iwahashi, Masayuki</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SN</scope><scope>7TN</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>20080301</creationdate><title>Variations in the instantaneous mortality rate between larval patches of Pacific bluefin tuna Thunnus orientalis in the northwestern Pacific Ocean</title><author>Satoh, Keisuke ; Tanaka, Yosuke ; Iwahashi, Masayuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-4f3e7226c706b01fbe5c9f5f845eb433d0a96db2b758e952f0544d28c0d96b6f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Applied ecology</topic><topic>Biological and medical sciences</topic><topic>Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.)</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Lagrangian drifter</topic><topic>Larval instantaneous mortality</topic><topic>Larval patch</topic><topic>Marine</topic><topic>Pacific bluefin tuna</topic><topic>Sea water ecosystems</topic><topic>Synecology</topic><topic>Thunnus orientalis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Satoh, Keisuke</creatorcontrib><creatorcontrib>Tanaka, Yosuke</creatorcontrib><creatorcontrib>Iwahashi, Masayuki</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Ecology Abstracts</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>Fisheries research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Satoh, Keisuke</au><au>Tanaka, Yosuke</au><au>Iwahashi, Masayuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variations in the instantaneous mortality rate between larval patches of Pacific bluefin tuna Thunnus orientalis in the northwestern Pacific Ocean</atitle><jtitle>Fisheries research</jtitle><date>2008-03-01</date><risdate>2008</risdate><volume>89</volume><issue>3</issue><spage>248</spage><epage>256</epage><pages>248-256</pages><issn>0165-7836</issn><eissn>1872-6763</eissn><coden>FISRDJ</coden><abstract>We followed three patches of larval Pacific bluefin tuna (
Thunnus orientalis) using Lagrangian drifters in 2004 and 2005 from May to June and determined the age-specific larval instantaneous mortality rates, which were estimated to be between 0.06 and 2.75
day
−1. The mortality rates differed significantly between patches and between ages within the same patch, which were higher than most of the estimations for other marine fish larvae. The results indicate that for the purpose of understanding the process of the larval survival, the use of larval patches is appropriate as a unit of observation. Evidence of the occurrence for net avoidance is presented and also it is concluded that net extrusion was observed for the larvae. Length-specific catch probability of the larvae was estimated to correct for length distribution biases derived from the net avoidance and net extrusion.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.fishres.2007.09.003</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0165-7836 |
| ispartof | Fisheries research, 2008-03, Vol.89 (3), p.248-256 |
| issn | 0165-7836 1872-6763 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Applied ecology Biological and medical sciences Exploitation and management of natural biological resources (hunting, fishing and exploited populations survey, etc.) Fundamental and applied biological sciences. Psychology Lagrangian drifter Larval instantaneous mortality Larval patch Marine Pacific bluefin tuna Sea water ecosystems Synecology Thunnus orientalis |
| title | Variations in the instantaneous mortality rate between larval patches of Pacific bluefin tuna Thunnus orientalis in the northwestern Pacific Ocean |
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