Forecasting of fishing condition of ayu [Plecoglossus altivelis] in lake Biwa [Japan]
Methods for forecasting fishing conditions and for resource management of ayu Plecoglossus altivelis in Lake Biwa was investigated. The annual catch in number was predicted by the number of larvae sampled by net survey. Since the growth of ayu seems to be influenced by water temperature and populati...
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| Veröffentlicht in: | NIPPON SUISAN GAKKAISHI 1992, Vol.58(4), pp.653-657 |
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| container_title | NIPPON SUISAN GAKKAISHI |
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| creator | Nishimori, K. (Shiga-ken. Fisheries Experiment Station, Hikone (Japan)) Kishida, T Matsuda, H |
| description | Methods for forecasting fishing conditions and for resource management of ayu Plecoglossus altivelis in Lake Biwa was investigated. The annual catch in number was predicted by the number of larvae sampled by net survey. Since the growth of ayu seems to be influenced by water temperature and population density, mean body weight over the year of landed fish was estimated by the number of days of snowfall and the number of larvae sampled. The number of days of snowfall is an index of the minimum water temperature. Annual catch in weight can be estimated by the number of days of snowfall. The commercial value of ayu reaches its maximum at an appropriate body weight, therefore resource management was discussed; in other words, how many larvae should be released depending on the number of days of snowfall. It is expected that mean body weight will be kept suitable if the larval density is increased in years when there is little snowfall, and vice versa. |
| doi_str_mv | 10.2331/suisan.58.653 |
| format | Article |
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(Shiga-ken. Fisheries Experiment Station, Hikone (Japan)) ; Kishida, T ; Matsuda, H</creator><creatorcontrib>Nishimori, K. (Shiga-ken. Fisheries Experiment Station, Hikone (Japan)) ; Kishida, T ; Matsuda, H</creatorcontrib><description>Methods for forecasting fishing conditions and for resource management of ayu Plecoglossus altivelis in Lake Biwa was investigated. The annual catch in number was predicted by the number of larvae sampled by net survey. Since the growth of ayu seems to be influenced by water temperature and population density, mean body weight over the year of landed fish was estimated by the number of days of snowfall and the number of larvae sampled. The number of days of snowfall is an index of the minimum water temperature. Annual catch in weight can be estimated by the number of days of snowfall. The commercial value of ayu reaches its maximum at an appropriate body weight, therefore resource management was discussed; in other words, how many larvae should be released depending on the number of days of snowfall. It is expected that mean body weight will be kept suitable if the larval density is increased in years when there is little snowfall, and vice versa.</description><identifier>ISSN: 0021-5392</identifier><identifier>EISSN: 1349-998X</identifier><identifier>DOI: 10.2331/suisan.58.653</identifier><identifier>CODEN: NSUGAF</identifier><language>eng ; jpn</language><publisher>Tokyo: The Japanese Society of Fisheries Science</publisher><subject>ALEVINES ; CONDICIONES ATMOSFERICAS ; CONDITIONS METEOROLOGIQUES ; DENSIDAD DE LA POBLACION ; DENSITE DE POPULATION ; FISH LARVAE ; FORECASTING ; Freshwater ; GESTION DES RESSOURCES ; JAPAN ; JAPON ; LAC ; LAGOS ; LAKES ; LARVE DE POISSON ; METEOROLOGICAL ELEMENTS ; NEIGE ; NIEVE ; ORDENACION DE RECURSOS ; PESO ; Plecoglossus altivelis ; POIDS ; POPULATION DENSITY ; RESOURCE MANAGEMENT ; SALMONOIDEI ; SNOW ; TECHNIQUE DE PREVISION ; TECNICAS DE PREDICCION ; WEIGHT</subject><ispartof>NIPPON SUISAN GAKKAISHI, 1992, Vol.58(4), pp.653-657</ispartof><rights>The Japanese Society of Fisheries Science</rights><rights>1993 INIST-CNRS</rights><rights>Copyright Japan Science and Technology Agency 1992</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c503t-a8e22d99f4c976d46c749718cb14746c0f05482f7e58d903a8e066a5367c16503</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=4474937$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Nishimori, K. 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The commercial value of ayu reaches its maximum at an appropriate body weight, therefore resource management was discussed; in other words, how many larvae should be released depending on the number of days of snowfall. It is expected that mean body weight will be kept suitable if the larval density is increased in years when there is little snowfall, and vice versa.</description><subject>ALEVINES</subject><subject>CONDICIONES ATMOSFERICAS</subject><subject>CONDITIONS METEOROLOGIQUES</subject><subject>DENSIDAD DE LA POBLACION</subject><subject>DENSITE DE POPULATION</subject><subject>FISH LARVAE</subject><subject>FORECASTING</subject><subject>Freshwater</subject><subject>GESTION DES RESSOURCES</subject><subject>JAPAN</subject><subject>JAPON</subject><subject>LAC</subject><subject>LAGOS</subject><subject>LAKES</subject><subject>LARVE DE POISSON</subject><subject>METEOROLOGICAL ELEMENTS</subject><subject>NEIGE</subject><subject>NIEVE</subject><subject>ORDENACION DE RECURSOS</subject><subject>PESO</subject><subject>Plecoglossus altivelis</subject><subject>POIDS</subject><subject>POPULATION DENSITY</subject><subject>RESOURCE MANAGEMENT</subject><subject>SALMONOIDEI</subject><subject>SNOW</subject><subject>TECHNIQUE DE PREVISION</subject><subject>TECNICAS DE PREDICCION</subject><subject>WEIGHT</subject><issn>0021-5392</issn><issn>1349-998X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><recordid>eNpdkM1rFDEYhwdRcKk9evE0oHib9c3nJEctrVoK9qAglBLeZpNtapqsyYzS_94ss-zBSz6fPG_eX9e9JrCmjJEPdQ4V01qotRTsWbcijOtBa_XzebcCoGQQTNOX3Wmt4Q4ANJcM1Kr7cZGLs1inkLZ99r0P9X6_tDltwhRy2h_i09zfXEdn8zbmWufaY5zCHxdDve1D6iP-cv2n8Bf7m0vcYbp91b3wGKs7Pcwnrc7597Mvw9W3z1_PPl4NVgCbBlSO0o3Wnls9yg2XduR6JMreET62HXgQXFE_OqE2GljjQUoUTI6WyKY46d4v3l3Jv2dXJ_MYqnUxYnJ5roZIDlQCbeDb_8CHPJfU_mZaKUG4ApCNGhbKltZmcd7sSnjE8mQImH3KZknZCGVayo1_d7BitRh9wWRDPT7irQnNxoZdLNhDnXDrjvdYpmCjO0iJZnQv5svQ_EfA3mMxLjXRm0XkMRvcllbr8lq3HBhh7B-kIZ3A</recordid><startdate>1992</startdate><enddate>1992</enddate><creator>Nishimori, K. (Shiga-ken. Fisheries Experiment Station, Hikone (Japan))</creator><creator>Kishida, T</creator><creator>Matsuda, H</creator><general>The Japanese Society of Fisheries Science</general><general>Nippon Suisan Gakkai</general><general>Japan Science and Technology Agency</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TN</scope><scope>C1K</scope><scope>F1W</scope><scope>SOI</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>1992</creationdate><title>Forecasting of fishing condition of ayu [Plecoglossus altivelis] in lake Biwa [Japan]</title><author>Nishimori, K. (Shiga-ken. Fisheries Experiment Station, Hikone (Japan)) ; Kishida, T ; Matsuda, H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c503t-a8e22d99f4c976d46c749718cb14746c0f05482f7e58d903a8e066a5367c16503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1992</creationdate><topic>ALEVINES</topic><topic>CONDICIONES ATMOSFERICAS</topic><topic>CONDITIONS METEOROLOGIQUES</topic><topic>DENSIDAD DE LA POBLACION</topic><topic>DENSITE DE POPULATION</topic><topic>FISH LARVAE</topic><topic>FORECASTING</topic><topic>Freshwater</topic><topic>GESTION DES RESSOURCES</topic><topic>JAPAN</topic><topic>JAPON</topic><topic>LAC</topic><topic>LAGOS</topic><topic>LAKES</topic><topic>LARVE DE POISSON</topic><topic>METEOROLOGICAL ELEMENTS</topic><topic>NEIGE</topic><topic>NIEVE</topic><topic>ORDENACION DE RECURSOS</topic><topic>PESO</topic><topic>Plecoglossus altivelis</topic><topic>POIDS</topic><topic>POPULATION DENSITY</topic><topic>RESOURCE MANAGEMENT</topic><topic>SALMONOIDEI</topic><topic>SNOW</topic><topic>TECHNIQUE DE PREVISION</topic><topic>TECNICAS DE PREDICCION</topic><topic>WEIGHT</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nishimori, K. (Shiga-ken. Fisheries Experiment Station, Hikone (Japan))</creatorcontrib><creatorcontrib>Kishida, T</creatorcontrib><creatorcontrib>Matsuda, H</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Environment Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>NIPPON SUISAN GAKKAISHI</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nishimori, K. (Shiga-ken. 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The number of days of snowfall is an index of the minimum water temperature. Annual catch in weight can be estimated by the number of days of snowfall. The commercial value of ayu reaches its maximum at an appropriate body weight, therefore resource management was discussed; in other words, how many larvae should be released depending on the number of days of snowfall. It is expected that mean body weight will be kept suitable if the larval density is increased in years when there is little snowfall, and vice versa.</abstract><cop>Tokyo</cop><pub>The Japanese Society of Fisheries Science</pub><doi>10.2331/suisan.58.653</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-5392 |
| ispartof | NIPPON SUISAN GAKKAISHI, 1992, Vol.58(4), pp.653-657 |
| issn | 0021-5392 1349-998X |
| language | eng ; jpn |
| recordid | cdi_proquest_miscellaneous_16402602 |
| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals; AgriKnowledge（アグリナレッジ）AGROLib |
| subjects | ALEVINES CONDICIONES ATMOSFERICAS CONDITIONS METEOROLOGIQUES DENSIDAD DE LA POBLACION DENSITE DE POPULATION FISH LARVAE FORECASTING Freshwater GESTION DES RESSOURCES JAPAN JAPON LAC LAGOS LAKES LARVE DE POISSON METEOROLOGICAL ELEMENTS NEIGE NIEVE ORDENACION DE RECURSOS PESO Plecoglossus altivelis POIDS POPULATION DENSITY RESOURCE MANAGEMENT SALMONOIDEI SNOW TECHNIQUE DE PREVISION TECNICAS DE PREDICCION WEIGHT |
| title | Forecasting of fishing condition of ayu [Plecoglossus altivelis] in lake Biwa [Japan] |
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