Quantification of catch composition in fisheries: A methodology and its application to compare biodegradable and nylon gillnets

When evaluating fishing gear catches, the focus is often on a few species as opposed to entire catch. In some fisheries this can lead ignoring major part of catch composition. Thus, there need for more holistic approach when ecological impact using specific and comparing two or gears. context, it relevant have method that describes total quantifies proportions being wanted unwanted. study, we outline such demonstrate its applicability data from small-scale coastal gillnet fishery targeting European plaice (Pleuronectes platessa, Linnaeus, 1758) by composition nylon biodegradable gillnets. The results showed no significant differences in between gillnets made materials. Therefore, obtained environmentally friendly materials does not represent barrier fishery. However, selectivity still concern primary target constituted only half numbers while rest was unwanted presented quantifying inferring be further applied assessing performance different gears their modifications.