Data/hora: 01/06/2024 06:49:32

Provedor de dados: | 103
País: | Brazil
Título: | Detection of introduced sessile species on the near shore continental shelf in southern Brazil
Autores: | Bumbeer,Janaína de Araújo; Rocha,Rosana Moreira da.
Data: | 2012-04-01
Ano: | 2012
Palavras-chave: | Artificial substrate; Biofouling; Marine bioinvasion; Sublittoral.
Resumo: | Invasion by marine species, often considered a grave threat to marine ecosystems, occurs throughout the world as a consequence of many anthropogenic activities. In coastal Paraná, many factors including shipping, aquaculture and the use of artificial substrates provide suitable environments for the establishment and rapid spread of introduced marine species. To better understand this process, the encrusting community was studied on polyethylene plates (n = 120, 10 x 10 cm) that were placed seasonally at fixed locations on the inner continental shelf to detect non-native species. Of the 62 taxa found, 40 were identified to species, 14 of which were native, 9 introduced and 17 cryptogenic. We found a new introduction while most introduced species were previously reported at a nearby estuary with an international port. Possible complementary explanations for these detections are 1) estuaries influence ecological processes on the inner continental shelf, 2) the study area is near the route of cargo and other ships entering the port, 3) other local vectors, such as hulls of fishing and recreational boats, and artificial reefs link the estuary to the offshore areas. Thus, not only are estuaries invaded by exotic species, but also non-indigenous marine species may be present in the open sea where they are likely to colonize artificial substrates.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200005
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S1984-46702012000200005
Formato: | text/html
Fonte: | Zoologia (Curitiba)  v.29 n.2 2012
Fonte: | info:eu-repo/semantics/openAccess