A model of size-spectrum dynamics to estimate the effects of improving fisheries selectivity and reducing discards in Mediterranean mixed demersal fisheries
نویسندگان
چکیده
Size-spectrum models are good candidates to examine the effects of fishery management because predation and fishing largely body-size dependent. We increasing trawl fisheries’ selectivity through application a size-spectrum model “continental shelf system” in NW Mediterranean. This system is sustained by detritus, as background resource, benthic invertebrates that channel energy fish community. The our consists three components: 1) demersal invertebrate species modelled size spectrum dynamics, 2) carrion 3) detritus. was able exemplify changes patterns on different biological components system. According outputs, short term main target species, hake red mullet, would be beneficiaries increased net reduction effort. Discards have negligible effects. Despite positive outcomes, this exercise not exempt challenges, mainly due data-demanding nature approach applied with high diversity life-histories feeding strategies species. And yet, work first crucial step understand dynamics continental ecosystem subjected activities.
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ژورنال
عنوان ژورنال: Fisheries Research
سال: 2023
ISSN: ['0165-7836', '1872-6763']
DOI: https://doi.org/10.1016/j.fishres.2023.106764