How the fishing effort control and environmental changes affect the sustainability of a tropical shrimp small scale fishery

Global shrimp catches are reported primarily in association with large industrial trawling, but they also occur through small-scale fishing, which plays a substantial role traditional communities. We developed an Ecopath model north-eastern Brazil, and applied temporally dynamic (Ecosim) to evaluate the potential effects of different fishing effort control policies environmental changes on marine resources ecosystem between 2015 2030 case study for novelty tropical region. These scenarios included management options related controls (changing closed season) (primary production changes). Our findings indicate that it is possible maintain same level landings controlled reduction bottom trawlers activities, example, close 10 %, without compromising structure. This scenario provided better results than 3–4 months closing season, led significant losses high market-value target species (white shrimp, Penaeus schmitti pink subtilis). However, intense negative biomass, catch biodiversity indicators were decreasing primary production, from 2 reinforcing need simulate project impacts caused by change. trawling activity may help reduce, even at low levels, highly adverse due reduction. The climate change near future organisms ecosystems imminent reality, therefore search measures mitigating minimizing these crucial.