The introduction of non-indigenous marine species in new habitats is generally associated with ships arriving at ports, driven by species transported in ballast water and sediment and biofouling communities on ship hulls, drifting object and underwater surfaces in dock areas. The present paper reports the record of the specie Sternaspis aff. nana in the Atlantic Ocean, discussing its possible conservation status and method of arrival to Brazil. Sediments samples were collected in the external area (11 m depth) of the Suape Harbor (Brazil) in February 2018. Two individuals of Sternaspis aff. nana were recorded, representing the first record of this species in the Southwest Atlantic Ocean. The way S. aff. nana arrived in Brazilian waters cannot be easily determined, the short-lived lecithotrophic larvae of sternaspids suggest that the specimens found in Suape have arrived in ballast sediment. An increase in trade between Brazil and Asian countries since the 2000s has led to that more ships coming from China having arrived in Brazilian harbors. The arrival of S. aff. nana, originally described in the South China Sea, in the Suape harbor area may have resulted from this intense movement of ships between China and Brazil.
RESUMOO objetivo do presente estudo foi avaliar a presença de metais em cascas de ovos de Eretmochelys. imbricata coletados de dois ninhos depositados na praia de Maracaípe, Município do Ipojuca, Pernambuco -Brasil, utilizando uma metodologia qualitativa não invasiva. Nas cascas dos ovos foram identificados a presença de Hg, Li, Ba e Zn. Com isso, podemos concluir que a metodologia empregada para avaliar as cascas dos ovos de Eretmochelys imbricata permite identificar a presença de metais, podendo o método ser utilizado na avaliação exploratória em áreas de desova dessa espécie listada como em perigo de extinção.Palavras chave: Elementos inorgânicos; Espécie ameaçada; Tartarugas marinhas; Tartaruga de pente; Ipojuca.
ABSTRACTThe aim of this study was to evaluate the presence of metals in eggshells Eretmochelys imbricata collected from two nests deposited on the beach Maracaípe, municipality of Ipojuca, Pernambuco -Brazil, using a qualitative methodology. In the eggshells have been identified the Hg, Li, Ba and Zn. Thus, we can conclude that the methodology used to assess the shells of Eretmochelys imbricata eggs enables you to identify the presence of metals the method can beused in the exploratory assessment in spawning areas of this species listed as endangered.
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