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COMPARATIVE ANALYSIS OF FISH COMMUNITY COMPOSITION USING DIFFERENT SAMPLING METHODOLOGIES
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Sampling with electrofishing and gillnets was carried out on the Danube and the Sava in
2024 to compare the composition of the fish community obtained using these methods. Greater diversity, evenness, and a number of benthic fish species in the community were
recorded based on samples taken with gillnets than electrofishing, where smaller pelagic
species dominated. The mean length and weight of individuals sampled with gillnets were
higher on both rivers compared to electrofishing (t-test, p < 0.05). As pelagic species are
predominantly collected by electrofishing, and netting enables more efficient sampling of
benthic species, employing both methods, i.e., the data thus obtained, provides a more
complete insight into the biodiversity and ecology of the fish community.
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Title: COMPARATIVE ANALYSIS OF FISH COMMUNITY COMPOSITION USING DIFFERENT SAMPLING METHODOLOGIES
Description:
Sampling with electrofishing and gillnets was carried out on the Danube and the Sava in
2024 to compare the composition of the fish community obtained using these methods.
Greater diversity, evenness, and a number of benthic fish species in the community were
recorded based on samples taken with gillnets than electrofishing, where smaller pelagic
species dominated.
The mean length and weight of individuals sampled with gillnets were
higher on both rivers compared to electrofishing (t-test, p < 0.
05).
As pelagic species are
predominantly collected by electrofishing, and netting enables more efficient sampling of
benthic species, employing both methods, i.
e.
, the data thus obtained, provides a more
complete insight into the biodiversity and ecology of the fish community.
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