Bestandsoverzicht van snoekbaars, baars, blankvoorn en brasem : In het IJsselmeer/Markermeer, 2021

Tien, N.; Rijssel, J.C. van; Vrooman, Jip

doi:10.18174/545677

Cited by 4 publications

(9 citation statements)

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“…This bottom trawl was replaced in 2013 with a 4‐m‐wide iron beam trawl. Both gears used a 20‐mm mesh in the codend, so no effect on the catch efficiency on the smallest‐size classes is expected, and multiple analysis did not found any differences in catch efficiency for different‐size classes (Tien & de Leeuw, 2023, van Overzee et al, 2013). The autumnal survey consists of 20/29 hauls in Lake IJsselmeer and 10/14 hauls in Lake Markermeer, with the electric beam trawl and the beam trawl, respectively.…”

Section: Methodsmentioning

confidence: 99%

Temperature‐related increase in growth rate in four freshwater lake fish species

Tien,

de Leeuw,

van Rijssel

et al. 2024

Journal of Fish Biology

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Growth is one of the most direct and common ways fish respond to climate change, as fish growth is intimately linked to the temperature of the environment. Observational studies on the effect of shifts in temperature on fish growth are scarce for freshwater fish, and particularly lacking for lake populations. Here, changes in growth rate of bream (Abramis brama), perch (Perca fluviatilis), pikeperch (Sander lucioperca), and roach (Rutilus rutilus) over three decades were studied and compared with changes in temperature in the two largest lakes of western Europe: Lake IJsselmeer and Lake Markermeer in the Netherlands. In the autumnal survey catches of bream, perch, and roach, the mean length of YOY increased significantly between 1992 and 2021 in both lakes, but for YOY pikeperch, no temporal changes were found. In a length‐stratified dataset of age groups of bream, roach, and perch, the relationship between length and age differed significantly between time periods. In the more recent time periods, indications for higher growth rates across multiple ages were found. Temperature during the growth season increased in the same decades and showed significant correlations with the YOY mean length, for bream, perch, and roach in both lakes, and for pikeperch in Lake Markermeer. These results point toward consistent temperature‐induced increases in growth over the age groups for bream, roach, and perch. These increases were found despite the simultaneous process of de‐eutrophication in this water system and its potential negative effect on food production. For pikeperch, it is hypothesized that the absence of temporal increase in YOY growth rate is related to its necessary switch to piscivory and subsequent food limitation; the lower thermal range of its main prey smelt, Osmerus eperlanus, is hypothesized to have inhibited food availability for YOY pikeperch and its opportunity to achieve higher growth rates.

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Section: Methodsmentioning

confidence: 99%

Temperature‐related increase in growth rate in four freshwater lake fish species

Tien,

de Leeuw,

van Rijssel

et al. 2024

Journal of Fish Biology

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show abstract

“…in Tien et al 2021): hoe groter het bestand, hoe meer aanlanding met dezelfde inspanning gevangen wordt. Om met zekerheid een gewenste maximale vangst (het vangstadvies) te halen, zal dus bij seizoensbeheer rekening gehouden moeten worden met de ontwikkeling in het bestand.…”

Section: De Invloed Van Bestandsgrootteunclassified

“…De (aanloop naar de) paaiperiode zou gesloten kunnen worden, zoals ook in Tien et al (2013) besproken is. In de paaiperiode zijn vissen actief en mobiel waarbij de bestanden naar de ondiepere gebieden of het achterland trekken om zich voort te planten.…”

Section: Beschermen In De Paaiperiodeunclassified

Vangstreductie via beheer van het gesloten seizoen : Staandwantvisserij in het IJsselmeer/Markermeer

Volwater,

School,

Tien

2024

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“…In deze rapportage zijn niet de onzekerheidsmarges opgenomen, zoals gebruikt in de beheersevaluaties van 2020 (Tien et al 2020a en b) en de overzichtsrapportage van 2021 (Tien et al 2021). Deze onzekerheidsmarges zouden moeten worden toegevoegd bovenop de hier gepresenteerde getallen.…”

Section: Aanlandingsreeksunclassified

Bestandsoverzicht van snoekbaars, baars, blankvoorn en brasem : In het IJsselmeer/Markermeer, 2022

Volwater¹,

Rijssel²,

Tien³

2023

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Bestandsoverzicht van snoekbaars, baars, blankvoorn en brasem : In het IJsselmeer/Markermeer, 2021

Cited by 4 publications

References 0 publications

Temperature‐related increase in growth rate in four freshwater lake fish species

Temperature‐related increase in growth rate in four freshwater lake fish species

Vangstreductie via beheer van het gesloten seizoen : Staandwantvisserij in het IJsselmeer/Markermeer

Bestandsoverzicht van snoekbaars, baars, blankvoorn en brasem : In het IJsselmeer/Markermeer, 2022

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