This study monitored marine turtle nests in a region known as the Potiguar Basin, which stretches from the northern region of Rio Grande do Norte State (5°4’1.15” S, 36°4’36.41” W) to eastern Ceará State (4°38’48.28” S, 37°32’52.08” W) in Brazil. We collected data from January 2011 to December 2019 to identify species of sea turtles that spawn in the basin, to analyze the nesting spatial-temporal pattern and nests characteristics, and to record effects of environmental and anthropic factors on nests. A field team examined sea turtle tracks and nests signs. Turtle clutches were monitored daily until hatchings emerged from the nests. We monitored nests of hawksbill (Eretmochelys imbricata; n = 238) and olive Ridley turtles (Lepidochelys olivacea; n = 103). The nesting season for E. imbricata occurred between December and May and for L. olivacea from March to August. Hawksbills had clutch size, incubation time, number of unhatched eggs, and dead hatchlings higher than olive Ridley turtles; nevertheless, they presented lower hatching success. Precipitation between 0 and 22 mm and relative humidity (RH) higher than 69% increased the hatching success rate for E. imbricata; however, rainfall above 11 mm and RH 64% had the same effect for L. olivacea. Signs of egg theft and human presence (e.g. vehicle traffic and plastic residues on the beach) were recorded and are considered threats to nests. The results of our long-term monitoring study in the Potiguar Basin provide basis for the implementation of mitigation measures and adoption of management policies at nesting beaches in this Brazilian region.

Behavior activities of giant freshwater prawn Macrobrachium rosenbergii juvenile, their performance, and acquired lesions when under temporary feed restrictions were analyzed. Five animals/experimental units (10 prawns/m 2) were employed for treatments DFL-daily feed supply in the light phase; DFD-daily feed supply in the dark phase; AFL-alternating feed supply in the light phase; and AFDalternating feed supply in the dark phase, for a 24-hour period, with four replications each. Prawns were fed a pellet diet, twice a day, with 10% of their biomass/day. Specimens were monitored during 60 consecutive days, with behavior recording daily and weighed every 10 days, with assessment of lesions and/or amputated limbs at the end of the experimental period. Types of behavior comprised exploring, grooming, inactivity, crawling, swimming, excavation, burrowing, agonism, and feed ingestion by scan sampling, with instantaneous registration every 60 s, in 15-min windows, before and after feed, in light and dark phases. Feed restricted in alternate days during light and dark phases did not interfere in growth or survival of the specimens, with increase in apparent feed intake and less feed conversion ratio and specific growth rate. Agonistic behavior was higher in specimens with feed restrictions, with an increase in the number of lesions and amputations. The above demonstrates welfare decrease in farmed M. rosenbergii and depreciation in the quality of the final product.

Brazil has a coast that is threatened by economic activities and accelerated urbanisation process, causing ecosystem unbalance and decreasing socioenvironmental quality. We analysed data collected from 2010 to 2019 during the Beach Monitoring Project in north-eastern Brazil to quantify sea turtle strandings with signs of anthropogenic interaction, verify the impact of economic activities on the strandings, and analyse a possible relation between socioeconomic conditions and the strandings. Anthropogenic interaction was classified into 12 categories (eight related to fishing activities). We analysed 6007 strandings, including four sea turtle species and anthropogenic interaction was observed in 12.88% (n = 774) of the strandings. Chelonia mydas represented 94.05% of the total records with anthropogenic interaction and fishing-related strandings accounted for 81.65%. Juvenile individuals were more affected than adults; likewise, females were more affected than males. Icapuí and Areia Branca are very populous municipalities, and showed large number of strandings with signs of anthropogenic interaction. Our analyses revealed that fishing-related strandings were reported throughout the year; however, a larger number of records occurred in the dry season and during the lobster-fishing season. Our study brings knowledge on sea turtle strandings in north-eastern Brazil, providing results that support public policies to mitigate anthropogenic impacts on sea turtles.

Diante do agravamento da crise ambiental global é indispensável um esforço para a educação em questões ambientais, na finalidade de fundamentar a conduta dos indivíduos, das empresas e das coletividades inspirada no sentido de sua responsabilização sobre a proteção e conservação do meio ambiente. O estudo teve por intuito realizar um levantamento das práticas sustentáveis aplicadas aos segmentos da atividade pesqueira, bem como analisar alternativas que favoreçam o desenvolvimento sustentável do setor, apresentando sugestões descritas na literatura, para os problemas que afetam a atividade, integrando benefícios ecológicos, econômicos e sociais.  Para a realização deste estudo foi realizada a seguinte pergunta investigativa “Quais estudos da literatura apresentam práticas sustentáveis na área de recursos pesqueiros (pesca e aquicultura)?”. Assim, a escolha pelo levantamento bibliográfico ocorreu pela adequação da metodologia de estudo ao objetivo da pesquisa. Para este levantamento identificou-se que a maioria das práticas ambientais implementadas ou ações sugeridas se relacionou com pesquisas científicas ligadas à indústria, instituições, ou aspectos etnológicos e poucos estudos estiveram relacionadas à área educacional disciplinar. Considerou-se que os estudos acerca das práticas de sustentabilidade direcionadas ao setor pesqueiro são incipientes, com produção muito exígua quando comparados com a mesma temática para outras áreas.