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RESUMOO aumento na abundância de peixes não residentes da zona estuarina atrai o interesse da frota pesqueira, o que determina o período das safras de pesca na mesma época do aumento da abundância. No sul do Brasil a miragaia (Pogonias cromis) é um peixe estuarino-dependente, ameaçado de extinção devido à sobreexplotação. No estuário da Lagoa dos Patos, a falta de dados sobre a biologia e pesca da espécie são fatores limitantes na formulação de planos de manejo. Este trabalho tem o objetivo de analisar a pesca artesanal da miragaia no estuário da Lagoa dos Patos, discutindo as variações da CPUE e as diferentes composições de juvenis e adultos desembarcados, relacionando-as com o período de aumento da abundância na região. A pesca intensa é o principal responsável pelas variações na abundância miragaias no estuário da Lagoa dos Patos, onde as altas capturas acontecem dentro e fora do período reprodutivo. A composição dos desembarques se modifica ao longo do ano, fêmeas e peixes adultos predominam na estação reprodutiva, durante o período de repouso não há diferença significativa entre machos e fêmeas, e juvenis são predominantes, a média de idade também se modifica, com maiores valores no período de desova. Conclui-se que esta pescaria pode comprometer a recuperação do estoque. Palavras-chave: conservação, desembarques, espécie ameaçada, período de desova, sobrepesca THE ARTISANAL FISHING OF BLACK DRUM (Pogonias cromis, SCIAENIDAE) IN ESTUARY LAGOON OF PATOS, BRAZIL ABSTRACTThe increasing in the abundance of non-resident fish in the estuarine area attracts the interest of the fishing fleet, which determines the fishing seasons in the same period of increasing abundance. The black drum (Pogonias cromis) is an estuarine-dependent fish, (threatened with extinction due to) overexploitation in southern Brazil. In the estuary of Patos Lagoon, the scarcity of data on the biology and fishery species (hinder) the formulation of management plans. This study aims to analyze the artisanal fisheries of the black drum in the estuary of Patos Lagoon, by analyzing CPUE changes and the different compositions of juveniles, adults, males and females landed, relating them to the period of abundance increasing in the region. The fishing effort is the main cause for variations in the abundance of black drum in the estuary of Patos Lagoon, where the largest catches occur inside and outside the breeding season. The composition of landings varies throughout the year, females and adult fish predominate during the reproductive season, during the rest of the year no significant difference between males and females was found, and juveniles are predominant in the landings. The mean age of fish also changed, with higher values in spawning period. We conclude that these fisheries would prevent the recovery of the stock.

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Here we present the weight-length relationship of the spinner shark (Carcharhinus brevipinna) on the continental shelf of southern Brazil, estimated from an analysis of 125 specimens. No significant differences between males and females, so the data were grouped in equation W = 0,003L 3.1534 . The results presented here are the first to approach sharks above 75 cm and confirm the positive allometric growth of the species. RESUMOAqui apresentamos, a relação peso-comprimento do tubarão-rotador (Carcharhinus brevipinna) na plataforma continental do sul do Brasil, estimada a partir de análise de 125 exemplares. Não houve diferenças significativas entre machos e fêmeas, portanto os dados foram agrupados na equação W = 0,003L 3.1534 . Os resultados aqui apresentados são os primeiros a abordarem tubarões acima de 75 cm e confirmam o crescimento alométrico positivo da espécie.

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RESUMO:Plectranthus barbatus Andrews (Lamiaceae) é uma planta muita utilizada na medicina popular para o tratamento de doenças gastrointestinais e hepáticas. O objetivo do presente trabalho foi estudar o efeito protetor do extrato aquoso de P. barbatus (EAPB) sobre os danos hepáticos causados pela sobrecarga de ferro provocada pelo ferro-dextran em ratos. O tratamento com ferro-dextran induziu uma redução significativa na concentração de glutationa reduzida nos animais tratados em relação ao grupo controle e o tratamento prévio dos animais com o EAPB protegeu o fígado do efeito provocado pelo ferro neste parâmetro. Com relação à lipoperoxidação, houve aumento significativo na concentração de malondialdeído (MDA) nos animais tratados em relação ao controle, entretanto, quando os animais receberam o tratamento prévio com o EAPB, houve redução significativa na concentração do MDA. A análise histopatológica mostrou que o grupo tratado com ferro-dextran apresentou grânulos de ferro no citoplasma das células de Kupffer com alargamento das mesmas e algumas com os núcleos hipertróficos. O tratamento prévio com EAPB resultou no desaparecimento dos sinais de danos às células de Kupffer sem nenhum núcleo hipertrófico, mas com a presença de grânulos de ferro totalmente fagocitados, o que demonstra uma aparência morfológica normal. Portanto, o EAPB pode ser útil na prevenção de danos hepáticos induzidos por sobrecarga de ferro. Palavras-chave:Plectranthus barbatus, ferro, fígado, toxicidade, estresse oxidativo.ABSTRACT: Protection against hepatic oxidative damage induced by iron by the aqueous extract of Plectranthus barbatus. The Plectranthus barbatus Andrews (Lamiaceae) is a plant largely used in folk medicine to treat gastrointestinal and liver diseases. The objective of this work was to study the protective effect of the aqueous extract of P. barbatus (EAPB) against damage caused by iron overload induced by iron dextran in rat liver. Treatment with irondextran induced a significant reduction in the glutathione levels in treated animals compared to control group, and the pretreatment of animals with EAPB protected the liver from the effects caused by iron in this parameter. With respect to lipid peroxidation, a significant increase in the malondialdehyde (MDA) levels in treated animals compared to control was observed; however, when the animals were pretreated with EAPB, there was a significant reduction in the MDA levels. Histopathological analysis showed that the group treated with iron-dextran showed iron granules in the cytoplasm of the Kupffer cells and some of them presented enlarged nuclei. The group previously treated with EAPB showed the disappearance of the signs of damage to the Kupffer cells with no nucleus hypertrophy but with the presence of iron granules completely phagocytosed by these cells, which showed a normal morphological appearance. Therefore, the EAPB may be useful in the prevention of liver damage induced by iron overload.

In this study the authors use the Fishers ecological knowledge (FEK) from the south coast of the São Paulo State, in southeastern Brazil, to recover records of Atlantic nurse shark (Ginglymostoma cirratum), a threatened with extinction species, in a mosaic of marine-protected areas (MPAs) of the south coast of São Paulo, in southeastern Brazil, in the southernmost distribution of the species in the Southwest Atlantic Ocean. For half a century, in the study area only one male of G. cirratum was officially recorded, in 1967. Retrieving records from artisanal fishers, recreational anglers, fishing guides and spearfishers added 30 more records of G. cirratum, including 2 recent captures (February/2022 and May/2022), especially around coastal islands that are covered by MPAs. Two uncommon fishing techniques, but which provided the highest number of records for the species, were documented. These are

In southern Brazil, we investigated shark and ray capture records in an integral protection marine protection area (MPA) that allows fishing in that area. We found 10 shark and nine ray species, of which 88.5% and 66.2%, respectively, are endangered. Female adults and neonates of both sexes are abundant in the area, with records of stranding of large specimens, postcapture abortions and ovigerous capsules with fresh embryos on the beach. We suggest the application of continuous fisheries monitoring and an increase in guidelines on the capture of endangered species.conservation, elasmobranchs, endangered species, Lagoa do Peixe National Park Coastal regions of southern Brazil are areas with frequent presence of species of sharks, including pregnant females and neonates (de Chelotti & Santos, 2020;Vooren & Klippel, 2005). However, these regions have an intense fishing effort due to recreational fishing from the coast or pier (Motta et al., 2016), artisanal fishing practiced in shallow waters (de Chelotti et al., 2019;Santos et al., 2016) and industrial fishing carried out at greater depths between 50 and 200 m. This makes the coastal region an area with great difficulty in controlling fishing mortality (de Chelotti & Santos, 2020;Vooren & Klippel, 2005).Marine protected areas (MPAs) in the coastal region have an important role, providing a reduction of fishing mortality (Rolim et al., 2019) and, sometimes, overlapping with nursery areas, which are critical for the conservation of these species (Heupel et al., 2019;Vooren & Klippel, 2005). The absence of fishing in MPAs can still con-