Stock-catch analysis of carp recreational fisheries in Czech reservoirs: Insights into fish survival, water body productivity and impact of extreme events

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F12%3A00379790" target="_blank" >RIV/60077344:_____/12:00379790 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/12:43883566

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0165783611003687" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0165783611003687</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fishres.2011.12.003" target="_blank" >10.1016/j.fishres.2011.12.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Stock-catch analysis of carp recreational fisheries in Czech reservoirs: Insights into fish survival, water body productivity and impact of extreme events

Popis výsledku v původním jazyce

In culture-based fisheries, managers strive for high stocking efficiency, the ratio between the total weight of caught and stocked fish. We present a new time series approach to examine the dependence of reported catches on stocking and external events,using data on carp from 14 reservoirs in the Czech Republic. Analyses indicate that stocked carp are typically caught during the year of release or the year after; but also that the mean time lag between stocking and capture increases with reservoir area. External events can be important: major floods in the years 2002 and 2006 were in many reservoirs followed by up to 10-fold increases in catches in subsequent years as carp were washed down from upstream aquaculture and river stretches. In contrast, the ?Velvet Revolution in 1989 had no discernible effect on catches in subsequent years. In conclusion, the proposed method can simultaneously estimate the likely mean survival time of stocked carp and identify the impact of major environme

Název v anglickém jazyce

Stock-catch analysis of carp recreational fisheries in Czech reservoirs: Insights into fish survival, water body productivity and impact of extreme events

Popis výsledku anglicky

In culture-based fisheries, managers strive for high stocking efficiency, the ratio between the total weight of caught and stocked fish. We present a new time series approach to examine the dependence of reported catches on stocking and external events,using data on carp from 14 reservoirs in the Czech Republic. Analyses indicate that stocked carp are typically caught during the year of release or the year after; but also that the mean time lag between stocking and capture increases with reservoir area. External events can be important: major floods in the years 2002 and 2006 were in many reservoirs followed by up to 10-fold increases in catches in subsequent years as carp were washed down from upstream aquaculture and river stretches. In contrast, the ?Velvet Revolution in 1989 had no discernible effect on catches in subsequent years. In conclusion, the proposed method can simultaneously estimate the likely mean survival time of stocked carp and identify the impact of major environme

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

<a href="/cs/project/7F10070" target="_blank" >7F10070: Monitoring the environment of man-made lakes: what can fisheries data and models tell us?</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Fisheries Research

ISSN

0165-7836

e-ISSN

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Svazek periodika

119-120

Číslo periodika v rámci svazku

20 MAY

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

23-32

Kód UT WoS článku

000302440400003

EID výsledku v databázi Scopus

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