A comparative study of three fishery methods for sampling the invasive topmouth gudgeon (Pseudorasbora parva) in ponds

Kajgrová, L.; Drozd, B.; Regenda, J.; Draštík, Vladislav; Kočvara, Luboš; Kolařik, Tomáš; Peterka, Jiří; Blabolil, Petr

doi:https://dx.doi.org/10.1111/jfb.15361

Number of the records: 1

A comparative study of three fishery methods for sampling the invasive topmouth gudgeon (Pseudorasbora parva) in ponds

1.

SYSNO ASEP	0583824
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	A comparative study of three fishery methods for sampling the invasive topmouth gudgeon (Pseudorasbora parva) in ponds
Author(s)	Kajgrová, L. (CZ) Drozd, B. (CZ) Regenda, J. (CZ) Draštík, Vladislav (BC-A)_{RID, ORCID} Kočvara, Luboš (BC-A)_{RID, ORCID} Kolařik, Tomáš (BC-A) Peterka, Jiří (BC-A)_{RID, ORCID} Blabolil, Petr (BC-A)_{RID, ORCID}
Number of authors	8
Source Title	Journal of Fish Biology. - : Wiley - ISSN 0022-1112 Roč. 102, č. 5 (2023), s. 1121-1128
Number of pages	8 s.
Language	eng - English
Country	US - United States
Keywords	electrofishing ; fish-trapping ; population characteristic ; throw-netting
Subject RIV	GL - Fishing
OECD category	Fishery
R&D Projects	EF16_025/0007417 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Limited access
Institutional support	BC-A - RVO:60077344
UT WOS	000952872500001
EID SCOPUS	85150727711
DOI	10.1111/jfb.15361
Annotation	Invasive fish threaten ponds' ecological status and their ecosystem services, therefore obtaining a representative sample of fish community composition is fundamental to fishery management, research and nature conservation. Estimates of the size distribution, density and biomass of the topmouth gudgeon (Pseudorasbora parva) model species of invasive fish in three ponds were compared among three sampling methods: electrofishing, fish-trapping and throw-netting. The study illustrates that the invasive fish, P. parva, can be detected by all tested fishing methods, yet our results clearly showed that there are pronounced differences among methods in population characteristic estimates. Electrofishing and throw-netting gave biased information on the size distribution of P. parva. Fish-trapping and throw-netting gave reasonable P. parva density and biomass estimates, while electrofishing clearly underestimated it. All tested methods showed a body size increment of P. parva between summer and autumn sampling sessions, yet neither throw-netting nor electrofishing recorded an increment in its density. Our study showed that fish-trapping is the most reliable and affordable method to estimate invasive P. parva population characteristics in ponds despite more time-demanding sampling. The success depends on the mesh size of sampling gear, operator skill and habitat structure. The cost-effectiveness of the selected methods and the importance of invasive fish monitoring in ponds is discussed. The sampling gear must be considered carefully according to the aim of the monitoring.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2024
Electronic address	https://doi.org/10.1111/jfb.15361

Number of the records: 1