pone.0299774.s011.pdf (1.33 MB)

Variation in species composition and number of individuals of depth strata in Upper and Lower Lake Constance.

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posted on 2024-03-18, 17:33 authored by Steffen Bader, Julia Gaye-Siessegger, Barbara Scholz, Mário Mota-Ferreira, Alexander Brinker

Variation in species composition and number of individuals of depth strata in Upper and Lower Lake Constance.

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tasks directly influenced suggesting overall superiority study evaluated use small mesh sizes sampling conducted according reduce catch numbers record complete inventories provide comparable accuracy performing wfd surveys monitoring shallow areas mesh sizes indicated mesh gillnet sampling conventional european committee biotic quality indicator mesh gillnet modified monitoring fish populations fish catch numbers dependent fish communities deep benthic strata entire lake compared lower fish mortality fish mortality minimises different net types cen calculation method modified nets increases exhibit significant differences fish mortality net types modified nets benthic zone lake constance lake assessment xlink ">trial data species present species detection simultaneous halving significant reduction required number reducing effort reduced workload reduced panels pelagic zones pelagic zone negative impact less labour large pre fewer nets ecological status ecological assessment dominant species dominance structure differ significantly deploying 60 achieved 48 95 %.

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