Acipenser sturio L. in the Guadalquivir river, Spain. Water regulation and fishery as factors in stock decline from 1932 to 1967
Identifieur interne : 001717 ( Main/Curation ); précédent : 001716; suivant : 001718Acipenser sturio L. in the Guadalquivir river, Spain. Water regulation and fishery as factors in stock decline from 1932 to 1967
Auteurs : V. Fernández-Pasquier [Espagne]Source :
- Journal of Applied Ichthyology [ 0175-8659 ] ; 1999-09.
Abstract
Sturgeon (Acipenser sturio L., 1758) was a common species in the Guadalquivir River until the thirties. In 1932 a dam was built in the spawning area, 100 km from the river's mouth, that interrupted the migration. In the same year, a caviar and sturgeon smoked flesh factory started to run. By that time most of the fishes came to the factory from the dam area, but since 1934 the use of a fishing line without bait, specific for sturgeon catch, enabled fishermen to work in deep holes of the lower estuary. Using data from the factory records, we found that gravid females only got to spawning areas downstream of the dam when the water flow was greater than 100 m3/sec. Increasingly frequent dry weather in spring (caused by droughts and water regulation for flow irrigation) occurred, which led to persistent reproductive failures. During dry springs, it was more likely to catch sturgeons in the lower estuary than in the medium and upper estuarine areas, because fishes remained settled in deep holes, waiting for better water flow to continue their upstream migration. Increasing catches in this area resulted in the elimination of the most potentially reproductive adult fishes before they had any chance to spawn, which has finally led to the virtual extinction of the population.
Url:
DOI: 10.1111/j.1439-0426.1999.tb00222.x
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000405
- to stream Istex, to step Curation: Pour aller vers cette notice dans l'étape Curation :000404
- to stream Istex, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000E12
- to stream Main, to step Merge: Pour aller vers cette notice dans l'étape Curation :001799
Links to Exploration step
ISTEX:8F0478D50A47C33B2FE570232488B8E7FC6A9D1ELe document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Acipenser sturio L. in the Guadalquivir river, Spain. Water regulation and fishery as factors in stock decline from 1932 to 1967</title>
<author><name sortKey="Fernandez Asquier, V" sort="Fernandez Asquier, V" uniqKey="Fernandez Asquier V" first="V." last="Fernández-Pasquier">V. Fernández-Pasquier</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:8F0478D50A47C33B2FE570232488B8E7FC6A9D1E</idno>
<date when="1999" year="1999">1999</date>
<idno type="doi">10.1111/j.1439-0426.1999.tb00222.x</idno>
<idno type="url">https://api.istex.fr/document/8F0478D50A47C33B2FE570232488B8E7FC6A9D1E/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000405</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000405</idno>
<idno type="wicri:Area/Istex/Curation">000404</idno>
<idno type="wicri:Area/Istex/Checkpoint">000E12</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000E12</idno>
<idno type="wicri:doubleKey">0175-8659:1999:Fernandez Asquier V:acipenser:sturio:l</idno>
<idno type="wicri:Area/Main/Merge">001799</idno>
<idno type="wicri:Area/Main/Curation">001717</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Acipenser sturio L. in the Guadalquivir river, Spain. Water regulation and fishery as factors in stock decline from 1932 to 1967</title>
<author><name sortKey="Fernandez Asquier, V" sort="Fernandez Asquier, V" uniqKey="Fernandez Asquier V" first="V." last="Fernández-Pasquier">V. Fernández-Pasquier</name>
<affiliation wicri:level="1"><country xml:lang="fr">Espagne</country>
<wicri:regionArea>P.O. Box287. E‐11540Sanluvcar de Barrameda. Cadiz</wicri:regionArea>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Journal of Applied Ichthyology</title>
<idno type="ISSN">0175-8659</idno>
<idno type="eISSN">1439-0426</idno>
<imprint><publisher>Blackwell Publishing Ltd</publisher>
<pubPlace>Oxford, UK</pubPlace>
<date type="published" when="1999-09">1999-09</date>
<biblScope unit="volume">15</biblScope>
<biblScope unit="issue">4‐5</biblScope>
<biblScope unit="page" from="133">133</biblScope>
<biblScope unit="page" to="135">135</biblScope>
</imprint>
<idno type="ISSN">0175-8659</idno>
</series>
<idno type="istex">8F0478D50A47C33B2FE570232488B8E7FC6A9D1E</idno>
<idno type="DOI">10.1111/j.1439-0426.1999.tb00222.x</idno>
<idno type="ArticleID">JAI133</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0175-8659</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Sturgeon (Acipenser sturio L., 1758) was a common species in the Guadalquivir River until the thirties. In 1932 a dam was built in the spawning area, 100 km from the river's mouth, that interrupted the migration. In the same year, a caviar and sturgeon smoked flesh factory started to run. By that time most of the fishes came to the factory from the dam area, but since 1934 the use of a fishing line without bait, specific for sturgeon catch, enabled fishermen to work in deep holes of the lower estuary. Using data from the factory records, we found that gravid females only got to spawning areas downstream of the dam when the water flow was greater than 100 m3/sec. Increasingly frequent dry weather in spring (caused by droughts and water regulation for flow irrigation) occurred, which led to persistent reproductive failures. During dry springs, it was more likely to catch sturgeons in the lower estuary than in the medium and upper estuarine areas, because fishes remained settled in deep holes, waiting for better water flow to continue their upstream migration. Increasing catches in this area resulted in the elimination of the most potentially reproductive adult fishes before they had any chance to spawn, which has finally led to the virtual extinction of the population.</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Eau/explor/EsturgeonV1/Data/Main/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001717 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Curation/biblio.hfd -nk 001717 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Eau |area= EsturgeonV1 |flux= Main |étape= Curation |type= RBID |clé= ISTEX:8F0478D50A47C33B2FE570232488B8E7FC6A9D1E |texte= Acipenser sturio L. in the Guadalquivir river, Spain. Water regulation and fishery as factors in stock decline from 1932 to 1967 }}
![]() | This area was generated with Dilib version V0.6.27. | ![]() |