Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy
Identifieur interne : 000F88 ( Istex/Corpus ); précédent : 000F87; suivant : 000F89Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy
Auteurs : Martin Flajšhans ; Otomar Linhart ; V Ra Šlechtová ; Vlastimil ŠlechtaSource :
- Aquaculture [ 0044-8486 ] ; 1999.
Abstract
Since 1996, the Czech governmental programme on gene resources conservation of commercially important fish species has supported in situ conservation of rare/endangered breeds of common carp (Cyprinus carpio; nine breeds) and of rainbow trout (Oncorhynchus mykiss; three breeds) by keeping broodstock of each as live gene banks on selected farms. Effective population size (Ne) is maintained at 120. As fish are not included yet in the Czech animal breeding act, the programme encourages fisheries policy makers and farm managers to protect pure local breeds parallely to a general tendency to import breeds, use crossbreds for production or move breeds among farms. Since most breeds are defined by reproductive and performance traits only, their genetic structure is currently being investigated by enzyme polymorphism analysis to determine their value to the programme. A data records system is being introduced to the breeders that combines fish tagging and a locally-developed computer programme to store information. The experimental cryopreserved sperm bank is being extended to meet the needs of ex situ conservation. Since 1997, the programme has expanded to include eight strains of tench (Tinca tinca), two strains of wels (Silurus glanis), two coregonid species (Coregonus lavaretus maraena and Coregonus peled) and two acipenserid species (Acipenser ruthenus and Huso huso).
Url:
DOI: 10.1016/S0044-8486(98)00477-3
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title><author><name sortKey="Flajshans, Martin" sort="Flajshans, Martin" uniqKey="Flajshans M" first="Martin" last="Flajšhans">Martin Flajšhans</name><affiliation><mods:affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</mods:affiliation></affiliation><affiliation><mods:affiliation>Corresponding author. Tel.: +420-342-382-402; Fax: +420-342-382-396; E-mail: flajshans@vurh.jcu.cz</mods:affiliation></affiliation></author><author><name sortKey="Linhart, Otomar" sort="Linhart, Otomar" uniqKey="Linhart O" first="Otomar" last="Linhart">Otomar Linhart</name><affiliation><mods:affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</mods:affiliation></affiliation></author><author><name sortKey="Slechtova, V Ra" sort="Slechtova, V Ra" uniqKey="Slechtova V" first="V Ra" last="Šlechtová">V Ra Šlechtová</name><affiliation><mods:affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</mods:affiliation></affiliation></author><author><name sortKey="Slechta, Vlastimil" sort="Slechta, Vlastimil" uniqKey="Slechta V" first="Vlastimil" last="Šlechta">Vlastimil Šlechta</name><affiliation><mods:affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:B67E1584ACF1851898D937C4E197CB0758CA2026</idno><date when="1999" year="1999">1999</date><idno type="doi">10.1016/S0044-8486(98)00477-3</idno><idno type="url">https://api.istex.fr/document/B67E1584ACF1851898D937C4E197CB0758CA2026/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000F88</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000F88</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title><author><name sortKey="Flajshans, Martin" sort="Flajshans, Martin" uniqKey="Flajshans M" first="Martin" last="Flajšhans">Martin Flajšhans</name><affiliation><mods:affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</mods:affiliation></affiliation><affiliation><mods:affiliation>Corresponding author. Tel.: +420-342-382-402; Fax: +420-342-382-396; E-mail: flajshans@vurh.jcu.cz</mods:affiliation></affiliation></author><author><name sortKey="Linhart, Otomar" sort="Linhart, Otomar" uniqKey="Linhart O" first="Otomar" last="Linhart">Otomar Linhart</name><affiliation><mods:affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</mods:affiliation></affiliation></author><author><name sortKey="Slechtova, V Ra" sort="Slechtova, V Ra" uniqKey="Slechtova V" first="V Ra" last="Šlechtová">V Ra Šlechtová</name><affiliation><mods:affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</mods:affiliation></affiliation></author><author><name sortKey="Slechta, Vlastimil" sort="Slechta, Vlastimil" uniqKey="Slechta V" first="Vlastimil" last="Šlechta">Vlastimil Šlechta</name><affiliation><mods:affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Aquaculture</title><title level="j" type="abbrev">AQUA</title><idno type="ISSN">0044-8486</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1999">1999</date><biblScope unit="volume">173</biblScope><biblScope unit="issue">1–4</biblScope><biblScope unit="page" from="471">471</biblScope><biblScope unit="page" to="483">483</biblScope></imprint><idno type="ISSN">0044-8486</idno></series><idno type="istex">B67E1584ACF1851898D937C4E197CB0758CA2026</idno><idno type="DOI">10.1016/S0044-8486(98)00477-3</idno><idno type="PII">S0044-8486(98)00477-3</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0044-8486</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Since 1996, the Czech governmental programme on gene resources conservation of commercially important fish species has supported in situ conservation of rare/endangered breeds of common carp (Cyprinus carpio; nine breeds) and of rainbow trout (Oncorhynchus mykiss; three breeds) by keeping broodstock of each as live gene banks on selected farms. Effective population size (Ne) is maintained at 120. As fish are not included yet in the Czech animal breeding act, the programme encourages fisheries policy makers and farm managers to protect pure local breeds parallely to a general tendency to import breeds, use crossbreds for production or move breeds among farms. Since most breeds are defined by reproductive and performance traits only, their genetic structure is currently being investigated by enzyme polymorphism analysis to determine their value to the programme. A data records system is being introduced to the breeders that combines fish tagging and a locally-developed computer programme to store information. The experimental cryopreserved sperm bank is being extended to meet the needs of ex situ conservation. Since 1997, the programme has expanded to include eight strains of tench (Tinca tinca), two strains of wels (Silurus glanis), two coregonid species (Coregonus lavaretus maraena and Coregonus peled) and two acipenserid species (Acipenser ruthenus and Huso huso).</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Martin Flajšhans</name><affiliations><json:string>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</json:string><json:string>Corresponding author. Tel.: +420-342-382-402; Fax: +420-342-382-396; E-mail: flajshans@vurh.jcu.cz</json:string></affiliations></json:item><json:item><name>Otomar Linhart</name><affiliations><json:string>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</json:string></affiliations></json:item><json:item><name>Věra Šlechtová</name><affiliations><json:string>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</json:string></affiliations></json:item><json:item><name>Vlastimil Šlechta</name><affiliations><json:string>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Fish gene resources conservation</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Pure breeds</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Live gene banks</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Genetic structure</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Since 1996, the Czech governmental programme on gene resources conservation of commercially important fish species has supported in situ conservation of rare/endangered breeds of common carp (Cyprinus carpio; nine breeds) and of rainbow trout (Oncorhynchus mykiss; three breeds) by keeping broodstock of each as live gene banks on selected farms. Effective population size (Ne) is maintained at 120. As fish are not included yet in the Czech animal breeding act, the programme encourages fisheries policy makers and farm managers to protect pure local breeds parallely to a general tendency to import breeds, use crossbreds for production or move breeds among farms. Since most breeds are defined by reproductive and performance traits only, their genetic structure is currently being investigated by enzyme polymorphism analysis to determine their value to the programme. A data records system is being introduced to the breeders that combines fish tagging and a locally-developed computer programme to store information. The experimental cryopreserved sperm bank is being extended to meet the needs of ex situ conservation. Since 1997, the programme has expanded to include eight strains of tench (Tinca tinca), two strains of wels (Silurus glanis), two coregonid species (Coregonus lavaretus maraena and Coregonus peled) and two acipenserid species (Acipenser ruthenus and Huso huso).</abstract><qualityIndicators><score>7.472</score><pdfVersion>1.2</pdfVersion><pdfPageSize>435 x 643 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>4</keywordCount><abstractCharCount>1387</abstractCharCount><pdfWordCount>5048</pdfWordCount><pdfCharCount>31354</pdfCharCount><pdfPageCount>13</pdfPageCount><abstractWordCount>206</abstractWordCount></qualityIndicators><title>Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title><pii><json:string>S0044-8486(98)00477-3</json:string></pii><genre><json:string>research-article</json:string></genre><host><volume>173</volume><pii><json:string>S0044-8486(00)X0086-5</json:string></pii><pages><last>483</last><first>471</first></pages><issn><json:string>0044-8486</json:string></issn><issue>1–4</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>Aquaculture</title><publicationDate>1999</publicationDate></host><categories><wos><json:string>science</json:string><json:string>marine & freshwater biology</json:string><json:string>fisheries</json:string></wos><scienceMetrix><json:string>applied sciences</json:string><json:string>agriculture, fisheries & forestry</json:string><json:string>fisheries</json:string></scienceMetrix></categories><publicationDate>1999</publicationDate><copyrightDate>1999</copyrightDate><doi><json:string>10.1016/S0044-8486(98)00477-3</json:string></doi><id>B67E1584ACF1851898D937C4E197CB0758CA2026</id><score>0.052573398</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/B67E1584ACF1851898D937C4E197CB0758CA2026/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/B67E1584ACF1851898D937C4E197CB0758CA2026/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/B67E1584ACF1851898D937C4E197CB0758CA2026/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©1999 Elsevier Science B.V.</p></availability><date>1999</date></publicationStmt><notesStmt><note type="content">Fig. 1: A schedule of the National Programme for Conservation and Utilization of Commercial Animal Gene Resources, its organizational, management and checking mechanism specified for fish gene resources. Abbreviations: RIFCH USB—Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, Vodňany; IAPG—Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Liběchov; MAGU—Mendelian Agricultural University, Brno.</note><note type="content">Fig. 2: Purebreeding of a fish breed, considered as gene resource, exemplified on common carp broodstock. Abbreviations: IS—immobilizing solution; C1, C2, etc., corresponds to fish age.</note><note type="content">Table 1: A list of pure breeds of commercially important freshwater fish species, considered as gene resources in the Czech Republic</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title><author xml:id="author-1"><persName><forename type="first">Martin</forename><surname>Flajšhans</surname></persName><email>flajshans@vurh.jcu.cz</email><affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</affiliation></author><author xml:id="author-2"><persName><forename type="first">Otomar</forename><surname>Linhart</surname></persName><affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</affiliation></author><author xml:id="author-3"><persName><forename type="first">Věra</forename><surname>Šlechtová</surname></persName><affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</affiliation></author><author xml:id="author-4"><persName><forename type="first">Vlastimil</forename><surname>Šlechta</surname></persName><affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</affiliation></author></analytic><monogr><title level="j">Aquaculture</title><title level="j" type="abbrev">AQUA</title><idno type="pISSN">0044-8486</idno><idno type="PII">S0044-8486(00)X0086-5</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1999"></date><biblScope unit="volume">173</biblScope><biblScope unit="issue">1–4</biblScope><biblScope unit="page" from="471">471</biblScope><biblScope unit="page" to="483">483</biblScope></imprint></monogr><idno type="istex">B67E1584ACF1851898D937C4E197CB0758CA2026</idno><idno type="DOI">10.1016/S0044-8486(98)00477-3</idno><idno type="PII">S0044-8486(98)00477-3</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1999</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Since 1996, the Czech governmental programme on gene resources conservation of commercially important fish species has supported in situ conservation of rare/endangered breeds of common carp (Cyprinus carpio; nine breeds) and of rainbow trout (Oncorhynchus mykiss; three breeds) by keeping broodstock of each as live gene banks on selected farms. Effective population size (Ne) is maintained at 120. As fish are not included yet in the Czech animal breeding act, the programme encourages fisheries policy makers and farm managers to protect pure local breeds parallely to a general tendency to import breeds, use crossbreds for production or move breeds among farms. Since most breeds are defined by reproductive and performance traits only, their genetic structure is currently being investigated by enzyme polymorphism analysis to determine their value to the programme. A data records system is being introduced to the breeders that combines fish tagging and a locally-developed computer programme to store information. The experimental cryopreserved sperm bank is being extended to meet the needs of ex situ conservation. Since 1997, the programme has expanded to include eight strains of tench (Tinca tinca), two strains of wels (Silurus glanis), two coregonid species (Coregonus lavaretus maraena and Coregonus peled) and two acipenserid species (Acipenser ruthenus and Huso huso).</p></abstract><textClass><keywords scheme="keyword"><list><head>Keywords</head><item><term>Fish gene resources conservation</term></item><item><term>Pure breeds</term></item><item><term>Live gene banks</term></item><item><term>Genetic structure</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1999">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/B67E1584ACF1851898D937C4E197CB0758CA2026/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: ce:floats; body; tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"><istex:entity SYSTEM="gr1" NDATA="IMAGE" name="gr1"></istex:entity><istex:entity SYSTEM="gr2" NDATA="IMAGE" name="gr2"></istex:entity></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>AQUA</jid><aid>60790</aid><ce:pii>S0044-8486(98)00477-3</ce:pii><ce:doi>10.1016/S0044-8486(98)00477-3</ce:doi><ce:copyright year="1999" type="full-transfer">Elsevier Science B.V.</ce:copyright></item-info><head><ce:title>Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</ce:title><ce:author-group><ce:author><ce:given-name>Martin</ce:given-name><ce:surname>Flajšhans</ce:surname><ce:cross-ref refid="AFF1">a</ce:cross-ref><ce:cross-ref refid="CORR1">*</ce:cross-ref></ce:author><ce:author><ce:given-name>Otomar</ce:given-name><ce:surname>Linhart</ce:surname><ce:cross-ref refid="AFF1">a</ce:cross-ref></ce:author><ce:author><ce:given-name>Věra</ce:given-name><ce:surname>Šlechtová</ce:surname><ce:cross-ref refid="AFF2">b</ce:cross-ref></ce:author><ce:author><ce:given-name>Vlastimil</ce:given-name><ce:surname>Šlechta</ce:surname><ce:cross-ref refid="AFF2">b</ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</ce:textfn></ce:affiliation><ce:correspondence id="CORR1"><ce:label>*</ce:label><ce:text>Corresponding author. Tel.: +420-342-382-402; Fax: +420-342-382-396; E-mail: flajshans@vurh.jcu.cz</ce:text></ce:correspondence></ce:author-group><ce:date-accepted day="14" month="10" year="1998"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Since 1996, the Czech governmental programme on gene resources conservation of commercially important fish species has supported in situ conservation of rare/endangered breeds of common carp (<ce:italic>Cyprinus carpio</ce:italic>; nine breeds) and of rainbow trout (<ce:italic>Oncorhynchus mykiss</ce:italic>; three breeds) by keeping broodstock of each as live gene banks on selected farms. Effective population size (<ce:italic>N</ce:italic><ce:inf>e</ce:inf>) is maintained at 120. As fish are not included yet in the Czech animal breeding act, the programme encourages fisheries policy makers and farm managers to protect pure local breeds parallely to a general tendency to import breeds, use crossbreds for production or move breeds among farms. Since most breeds are defined by reproductive and performance traits only, their genetic structure is currently being investigated by enzyme polymorphism analysis to determine their value to the programme. A data records system is being introduced to the breeders that combines fish tagging and a locally-developed computer programme to store information. The experimental cryopreserved sperm bank is being extended to meet the needs of ex situ conservation. Since 1997, the programme has expanded to include eight strains of tench (<ce:italic>Tinca tinca</ce:italic>), two strains of wels (<ce:italic>Silurus glanis</ce:italic>), two coregonid species (<ce:italic>Coregonus lavaretus maraena</ce:italic> and <ce:italic>Coregonus peled</ce:italic>) and two acipenserid species (<ce:italic>Acipenser ruthenus</ce:italic> and <ce:italic>Huso huso</ce:italic>).</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords class="keyword"><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Fish gene resources conservation</ce:text></ce:keyword><ce:keyword><ce:text>Pure breeds</ce:text></ce:keyword><ce:keyword><ce:text>Live gene banks</ce:text></ce:keyword><ce:keyword><ce:text>Genetic structure</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Genetic resources of commercially important fish species in the Czech Republic: present state and future strategy</title></titleInfo><name type="personal"><namePart type="given">Martin</namePart><namePart type="family">Flajšhans</namePart><affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</affiliation><affiliation>Corresponding author. Tel.: +420-342-382-402; Fax: +420-342-382-396; E-mail: flajshans@vurh.jcu.cz</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Otomar</namePart><namePart type="family">Linhart</namePart><affiliation>Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, 389 25 Vodňany, Czech Republic</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Věra</namePart><namePart type="family">Šlechtová</namePart><affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Vlastimil</namePart><namePart type="family">Šlechta</namePart><affiliation>Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, 277 21 Liběchov, Czech Republic</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1999</dateIssued><copyrightDate encoding="w3cdtf">1999</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Since 1996, the Czech governmental programme on gene resources conservation of commercially important fish species has supported in situ conservation of rare/endangered breeds of common carp (Cyprinus carpio; nine breeds) and of rainbow trout (Oncorhynchus mykiss; three breeds) by keeping broodstock of each as live gene banks on selected farms. Effective population size (Ne) is maintained at 120. As fish are not included yet in the Czech animal breeding act, the programme encourages fisheries policy makers and farm managers to protect pure local breeds parallely to a general tendency to import breeds, use crossbreds for production or move breeds among farms. Since most breeds are defined by reproductive and performance traits only, their genetic structure is currently being investigated by enzyme polymorphism analysis to determine their value to the programme. A data records system is being introduced to the breeders that combines fish tagging and a locally-developed computer programme to store information. The experimental cryopreserved sperm bank is being extended to meet the needs of ex situ conservation. Since 1997, the programme has expanded to include eight strains of tench (Tinca tinca), two strains of wels (Silurus glanis), two coregonid species (Coregonus lavaretus maraena and Coregonus peled) and two acipenserid species (Acipenser ruthenus and Huso huso).</abstract><note type="content">Fig. 1: A schedule of the National Programme for Conservation and Utilization of Commercial Animal Gene Resources, its organizational, management and checking mechanism specified for fish gene resources. Abbreviations: RIFCH USB—Research Institute of Fish Culture and Hydrobiology, University of South Bohemia, Vodňany; IAPG—Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Liběchov; MAGU—Mendelian Agricultural University, Brno.</note><note type="content">Fig. 2: Purebreeding of a fish breed, considered as gene resource, exemplified on common carp broodstock. Abbreviations: IS—immobilizing solution; C1, C2, etc., corresponds to fish age.</note><note type="content">Table 1: A list of pure breeds of commercially important freshwater fish species, considered as gene resources in the Czech Republic</note><subject><genre>Keywords</genre><topic>Fish gene resources conservation</topic><topic>Pure breeds</topic><topic>Live gene banks</topic><topic>Genetic structure</topic></subject><relatedItem type="host"><titleInfo><title>Aquaculture</title></titleInfo><titleInfo type="abbreviated"><title>AQUA</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">19990330</dateIssued></originInfo><identifier type="ISSN">0044-8486</identifier><identifier type="PII">S0044-8486(00)X0086-5</identifier><part><date>19990330</date><detail type="volume"><number>173</number><caption>vol.</caption></detail><detail type="issue"><number>1–4</number><caption>no.</caption></detail><extent unit="issue pages"><start>1</start><end>498</end></extent><extent unit="pages"><start>471</start><end>483</end></extent></part></relatedItem><identifier type="istex">B67E1584ACF1851898D937C4E197CB0758CA2026</identifier><identifier type="DOI">10.1016/S0044-8486(98)00477-3</identifier><identifier type="PII">S0044-8486(98)00477-3</identifier><accessCondition type="use and reproduction" contentType="copyright">©1999 Elsevier Science B.V.</accessCondition><recordInfo><recordContentSource>ELSEVIER</recordContentSource><recordOrigin>Elsevier Science B.V., ©1999</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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