2002
DOI: 10.1590/s0101-81752002000500009
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Bostricobranchus digonas Abbott (Ascidiacea, Molgulidae) in Paranaquá Bay, Paraná, Brazil: a case of recent invasion?

Abstract: ABSTRACT. Bostricobranchus digonas Abbott, 1951 was discovered by dredging near Cotinga Island, Paranaguá Bay, Paraná (25°31'5 II "S, 48°28'714"W). Concentrated in a small area 1.5 m deep, lhe animais were collected by a Van Veen devi ce. All sizes from 3 mm up to 2 cm in body diameter were recovered. This is the ftrst report of a species of this genus in lhe South Atlantic and its occurrence is discussed.

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Cited by 8 publications
(4 citation statements)
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“…Coscinodiscus wailesii is another new algal species for South American, and recently found in Paranaguá Bay (FERNANDES et al 2001). A species of ascidian (Bostricobranchus digonas, Abbott 1951) was described from Florida, in the United States, and was also found in Paranaguá Bay probably introduced, since it has not yet been found again on subsequent attempts (ROCHA 2002). Thus, Paranaguá Bay is now host to a variety of introduced species.…”
Section: Resumo Ascídiasmentioning
confidence: 99%
“…Coscinodiscus wailesii is another new algal species for South American, and recently found in Paranaguá Bay (FERNANDES et al 2001). A species of ascidian (Bostricobranchus digonas, Abbott 1951) was described from Florida, in the United States, and was also found in Paranaguá Bay probably introduced, since it has not yet been found again on subsequent attempts (ROCHA 2002). Thus, Paranaguá Bay is now host to a variety of introduced species.…”
Section: Resumo Ascídiasmentioning
confidence: 99%
“…In general, ballast water is not considered a principal vector for distant dispersal, mainly due to the short phase of free-swimming larvae. However, sediment, substrate, and/or the internal surfaces of ballast tanks may harbor ascidians (Rocha 2002;Briski et al 2011). Given a high level of fecundity, long reproduction seasons, and extremely large populations in many major ports, a large number of larvae must be pumped into ballast tanks.…”
Section: Human-mediated Vectorsmentioning
confidence: 99%
“…Para a costa brasileira, Bostrichobranchus digonas Abbott, 1951 foi detectada na Baía de Paranaguá, sendo uma espécie estuarina na Flórida (ROCHA, 2002); Styela plicata (Lesueur, 1823) e Ascidia sydneiensis Stimpson, 1855 são indicadas como introduções na região sul e sudeste do país (ROCHA & KREMER, 2005) e ROCHA & FARIA (2005) registraram Aplidium pentatrema (Monniot, 1972) para o litoral paranaense, esta espécie só havia sido registrada em Bermudas e Guadalupe. Assim, casos de introdução envolvendo ascídias se mostram bastante comuns.…”
unclassified