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Occurrence and distribution of fish in rivers of Latvia

Identifieur interne : 001718 ( Istex/Corpus ); précédent : 001717; suivant : 001719

Occurrence and distribution of fish in rivers of Latvia

Auteurs : J Nis Birzaks ; Riks Aleksejevs ; M Ris Str Gis

Source :

RBID : ISTEX:629EF8FE1BB37FD07A34B997E66F7598EC429A8A

English descriptors

Abstract

This publication is a review of data on fish and lamprey species found in 435 of Latvia's rivers and related reservoirs. A total of 43 fish species and three lamprey species, whose life cycles are, at least in part, associated with rivers, have been recorded. These can be divided into freshwater species and diadromous species. Differences between chronologically older publications and records collected since 1990 on fish occurrence are examined. Since 1990, the intensity of study of Latvia's rivers has increased, which is the reason for changes in the conception of the distribution and occurrence of fish species. The authors propose a new fish species list for Latvia's rivers, based on the newest field research and fishery data. The species included in list were caught in research trips during the period 1990 - 2010, or their capture was confirmed by an expert.

Url:
DOI: 10.2478/v10046-011-0019-z

Links to Exploration step

ISTEX:629EF8FE1BB37FD07A34B997E66F7598EC429A8A

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<abstract lang="en">This publication is a review of data on fish and lamprey species found in 435 of Latvia's rivers and related reservoirs. A total of 43 fish species and three lamprey species, whose life cycles are, at least in part, associated with rivers, have been recorded. These can be divided into freshwater species and diadromous species. Differences between chronologically older publications and records collected since 1990 on fish occurrence are examined. Since 1990, the intensity of study of Latvia's rivers has increased, which is the reason for changes in the conception of the distribution and occurrence of fish species. The authors propose a new fish species list for Latvia's rivers, based on the newest field research and fishery data. The species included in list were caught in research trips during the period 1990 - 2010, or their capture was confirmed by an expert.</abstract>
<abstract lang="lv">Apkopoti dati par 435 Latvijas upēs un uz tām izveidotajās ūdenskrātuvēs sastopamajām zivju un nēgu sugām. Konstatētas 43 zivju un trīs nēgu sugas, kuru dzīves cikls kaut daļēji ar tām saistīts. Tās iedalās saldūdens sugās un ceļotājzivju sugās. Analizētas atšķirības hronologiski vecākajās publikācijās par zivju sastopamību salīdzinājumā ar mūsdienās iegūtiem datiem laikā pēc 1990. gada un šo atšķirību rašanās cēloņi. Laikā pēc 1990. gada pētījumu intensitāte Latvijas upēs ir pieaugusi, kas faktiski arī nosaka izmaiņas priekšstatos par zivju sastopamību un relatīvo daudzumu. Autori piedāvā savu Latvijas upēs sastopamo zivju sugu saraksta versiju, kas pamatota ar iepriekšējo pētījumu analīzi un kvantitatīviem zivju uzskaites datiem pēc 1990. gada. Tajā iekļautas sugas, kas Latvijas upēs konstatētas pētījumos vai kuru noķeršanas gadījumi bijuši verificēti.</abstract>
<subject lang="en">
<genre>Keywords</genre>
<topic>river fish</topic>
<topic>distribution and occurrence of fish species</topic>
<topic>Latvia</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.</title>
</titleInfo>
<genre type="journal">journal</genre>
<identifier type="ISSN">1407-009X</identifier>
<identifier type="PublisherID">PROLAS</identifier>
<part>
<date>2011</date>
<detail type="volume">
<caption>vol.</caption>
<number>65</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>3-4</number>
</detail>
<extent unit="pages">
<start>57</start>
<end>66</end>
</extent>
</part>
</relatedItem>
<identifier type="istex">629EF8FE1BB37FD07A34B997E66F7598EC429A8A</identifier>
<identifier type="DOI">10.2478/v10046-011-0019-z</identifier>
<identifier type="ArticleID">v10046-011-0019-z</identifier>
<identifier type="pdf">v10046-011-0019-z.pdf</identifier>
<accessCondition type="use and reproduction" contentType="open-access">This content is open access.</accessCondition>
<recordInfo>
<recordContentSource>De Gruyter</recordContentSource>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
</record>

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