Assessing the applicability of diver-based surveys for monitoring fish populations in lentic lakes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00647034" target="_blank" >RIV/60077344:_____/25:00647034 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.fishres.2025.107308" target="_blank" >https://doi.org/10.1016/j.fishres.2025.107308</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fishres.2025.107308" target="_blank" >10.1016/j.fishres.2025.107308</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessing the applicability of diver-based surveys for monitoring fish populations in lentic lakes

Popis výsledku v původním jazyce

Giving the increasing degradation of aquatic ecosystem, it is important to prioritise harmless methods when selecting appropriate research gear. This study confirmed that Underwater Visual Census (UVC) using SCUBA divers and parallel, depth-stratified transects can produce results comparable to standardized gillnet sampling in terms of fish species proportions in lentic freshwater ecosystems with sufficient water transparency. The proportions of young-of-the-year (YOY) fish were similar between the two methods. In older fish, the species proportions showed minor, non-significant variations between methods. Despite some variability in performance during UVC surveys, this variation is not necessarily indicative of an error but may reflect natural fluctuations in fish distribution. Notably, UVC detected a significantly higher number of fish individuals compared to gillnets. Our findings suggest that UVC is a viable, non-invasive alternative to gillnets for surveying nearshore fish populations, providing comparable data quality with negligible impact on the fish community.

Název v anglickém jazyce

Assessing the applicability of diver-based surveys for monitoring fish populations in lentic lakes

Popis výsledku anglicky

Giving the increasing degradation of aquatic ecosystem, it is important to prioritise harmless methods when selecting appropriate research gear. This study confirmed that Underwater Visual Census (UVC) using SCUBA divers and parallel, depth-stratified transects can produce results comparable to standardized gillnet sampling in terms of fish species proportions in lentic freshwater ecosystems with sufficient water transparency. The proportions of young-of-the-year (YOY) fish were similar between the two methods. In older fish, the species proportions showed minor, non-significant variations between methods. Despite some variability in performance during UVC surveys, this variation is not necessarily indicative of an error but may reflect natural fluctuations in fish distribution. Notably, UVC detected a significantly higher number of fish individuals compared to gillnets. Our findings suggest that UVC is a viable, non-invasive alternative to gillnets for surveying nearshore fish populations, providing comparable data quality with negligible impact on the fish community.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

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

1872-6763

Svazek periodika

284

Číslo periodika v rámci svazku

Mar

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

107308

Kód UT WoS článku

001441129500001

EID výsledku v databázi Scopus

2-s2.0-85219530103