2025-01-092025-01-092023-12-20COSTA, Alícia Mac-Culloch. Fauna de medusozoa associada a pesca industrial do camarão-rosa (Penaeus Subtilis Pérez Farfante, 1967) na plataforma continental Amazônica . Orientador: José Eduardo Martinelli Filho. 2023. 48 f. Trabalho de Conclusão de Curso (Bacharelado em Oceanografia) - Faculdade de Oceanografia, Instituto de Geociências, Universidade Federal do Pará, Belém, 2023. Disponível em:https://bdm.ufpa.br/jspui/handle/prefix/7588. Acesso em:.https://bdm.ufpa.br/jspui/handle/prefix/7588The Amazon Continental Shelf (ACS) is an extensive platform located in a region with peculiar meteorological and oceanographic characteristics, experiencing high precipitation throughout the year, high temperatures with low thermal variation, and significant influence from the estuarine plume of the Amazon River. During industrial southern brown shrimp fishing in the ACS, it is common for accidental capture of other organisms to occur. This study aims to analyze the jellyfish fauna associated with this activity in order to identify species, assess richness and abundance, analyze the biometric parameters of organisms, and estimate population density and biomass. Along the ACS, trawl net collections were conducted, covering an area of approximately 1000 km². The quantity of jellyfish captured in situ was estimated for each species, and a variable-sized sample of organisms was sent for laboratory analysis, where they were identified at the species level, had their structures measured (D: umbrella diameter; O: oral arm), and wet weight (WW) was determined. Subsequently, density and estimated biomass were calculated. Finally, statistical tests were applied to the dataset obtained. Only three species of jellyfish bycatch fauna were identified. The morphology of the species C. quadrumanus (D= 78.17 ± 17.1 mm; WW= 45.11 ± 33.56 g) and L. lucerna (D= 169.80 ± 50.37 mm; WW= 55.61 ± 16.46 g) showed values smaller than those described in the southern region of the country. However, in comparison with studies conducted in the Amazon coastal region, L. lucerna is larger on the platform. For S. fritillarius (D= 66.92 ± 17.06 mm; WW= 21.68 ± 24.44 g), the values were similar. The highest density and biomass were observed at the peak of the dry season, while the highest specific richness occurred at the end of this period. The lowest density and biomass were observed during the transitional period between rainy and dry seasons. Despite previous studies indicating that the species S. fritillarius is more frequent in the Amazon coastal region, according to the literature, in the ACS, the most abundant species appears to be C. quadrumanus. The low species richness in this study may be a reflection of the sampling method, which is not the most suitable for gelatinous organisms, and the use of large mesh sizes, allowing smaller individuals to escape. However, for a stronger theoretical basis, further research and more extensive area monitoring on temporal and spatial scales are necessary. Thus, this study aimed to contribute to the expansion of knowledge regarding jellyfish fauna on the northern coast of Brazil.Acesso AbertoPesca de arrastoÁgua-vivaMorfometriaTrawl fishingJellyfishMorphometryCNPQ::CIENCIAS EXATAS E DA TERRA::OCEANOGRAFIATrabalho de Curso - Graduação - Monografia