Shrimp captures have reached a record in Southern Brazil, and some populations show signs of overexploitation. One shrimp species in particular, Xyphopenaeus kroyeri, abundant in Brazilian landings, is caught by bottom trawl. Trawl fishery is recognized by the impacts it causes on the seabed and on organisms that live in or on the substrate. The present study was conducted in traditional fishing areas on the southern Brazilian coast to assess the conditions of the habitat and the ecological aspects of the marine macroinvertebrate community at 3 areas (Barra do Sul, Penha and Porto Belo) in the Central and Northern Coast of the state of Santa Catarina (southern Brazil). Bottom water and sediment data were used to analyze the differences between the sites. Macroinvertebrate captures were used to analyze ecological aspects of the communities such as composition, diversity and patterns associated with the abiotic variables and habitat conditions. We used a trawling vessel for samplings. The results showed a homogeneous water mass between the areas. However, the sediment characteristic differentiates the areas and contributes to the species composition’s heterogeneity between the samples. The ABC and species-ranking curves results suggest moderate disturbances in the three areas, but with a better structure for the Porto Belo communities. In this context, Barra do Sul was characterized by an environment relatively poor in sediment structure, the abundance and biomass of species. In contrast, Porto Belo and Penha were the opposite. Since trawling changes the sediment’s characteristics are strongly correlated with the diversity and the permanence of sensitive species, we suggest that increased small-scale trawling activities might contribute to the substrate’s homogenization and reduce species diversity in these areas. Therefore, constant surveys to monitor the physical structure and the community and its dynamics in trawling areas are indispensable for the conservation of species and fisheries’ sustainability.

在巴西南部，对虾的捕捞量已达到创纪录的水平，一些种群显示出过度捕捞的迹象。特别是一种虾种，克罗伊氏菌在巴西的着陆点很丰富，却被底拖网捕获。拖网渔业对海床和对生活在其内部或之上的生物的影响是公认的。本研究是在巴西南部海岸的传统捕鱼区进行的，以评估巴西中部和北部海岸3个地区（南巴拉岛，佩尼亚和贝洛港）的海洋无脊椎动物群落的生境条件和生态方面。圣卡塔琳娜州（巴西南部）。底水和沉积物数据用于分析站点之间的差异。无脊椎动物的捕获被用来分析社区的生态方面，例如与非生物变量和栖息地条件有关的组成，多样性和模式。我们使用拖网船进行采样。结果显示区域之间的水量均匀。但是，沉积物的特征区分了这些区域，并造成了样品之间物种组成的异质性。ABC和物种排名曲线结果表明，这三个地区受到了中度干扰，但贝洛港社区的结构较好。在这种情况下，南巴拉岛的特点是沉积物结构，物种丰富度和生物量相对较差的环境。相反，贝洛港（Porto Belo）和佩尼亚（Penha）相反。由于拖网变化，沉积物的特征与敏感物种的多样性和持久性密切相关，因此我们建议增加小规模拖网活动可能有助于这些区域的基质均质化并减少物种多样性。所以，