The effects of environmental factors and fisheries management on recreational catches of perch Perca fluviatilis in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F24759384%3A_____%2F19%3AN0000061" target="_blank" >RIV/24759384:_____/19:N0000061 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.alr-journal.org/articles/alr/full_html/2019/01/alr190005/alr190005.html" target="_blank" >https://www.alr-journal.org/articles/alr/full_html/2019/01/alr190005/alr190005.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/ALR/2019013" target="_blank" >10.1051/ALR/2019013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effects of environmental factors and fisheries management on recreational catches of perch Perca fluviatilis in the Czech Republic

Popis výsledku v původním jazyce

The Eurasian perch Perca fluviatilis is an important fish species in both commercial and recreational fisheries. However, there is concern that perch populations in Central Europe are decreasing. This study aimed to assess the effects of environmental factors and management on recreational perch catches. Data from individual angling logbooks collected by the Czech Fishing Union on 229 fishing grounds during the period 2005–2016 were used in this study. In total, almost 60 000 perch weighing 17 500 kg were recorded. During the study period, total perch catches decreased by 60%, catch per fishing visit decreased by 70%, average body weight of caught perch increased by 18%, and percentage of fishing grounds with perch catches decreased by 13%. The results indicated that the decreasing catches were due to increasing fishing pressure. Further, fishing grounds with higher fishing visit rates had higher catches in general but lower catch per fishing visit. Larger and more productive rivers also showed higher catches. In contrast, the intensity of fish stocking did not affect catches. In conclusion, perch populations in Central Europe are likely under high fishing pressure, and the pressure is further increasing.

Název v anglickém jazyce

The effects of environmental factors and fisheries management on recreational catches of perch Perca fluviatilis in the Czech Republic

Popis výsledku anglicky

The Eurasian perch Perca fluviatilis is an important fish species in both commercial and recreational fisheries. However, there is concern that perch populations in Central Europe are decreasing. This study aimed to assess the effects of environmental factors and management on recreational perch catches. Data from individual angling logbooks collected by the Czech Fishing Union on 229 fishing grounds during the period 2005–2016 were used in this study. In total, almost 60 000 perch weighing 17 500 kg were recorded. During the study period, total perch catches decreased by 60%, catch per fishing visit decreased by 70%, average body weight of caught perch increased by 18%, and percentage of fishing grounds with perch catches decreased by 13%. The results indicated that the decreasing catches were due to increasing fishing pressure. Further, fishing grounds with higher fishing visit rates had higher catches in general but lower catch per fishing visit. Larger and more productive rivers also showed higher catches. In contrast, the intensity of fish stocking did not affect catches. In conclusion, perch populations in Central Europe are likely under high fishing pressure, and the pressure is further increasing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquatic Living Resources

ISSN

0990-7440

e-ISSN

1765-2952

Svazek periodika

32

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000472784100001

EID výsledku v databázi Scopus

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