2005
DOI: 10.1590/s1519-69842005000100006
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Abstract: The reproductive biology of Palythoa caribaeorum (Duchassaing & Michelotti 1860) and Protopalythoa variabilis (Duerden 1898) was studied through monthly samples from tagged colonies from June 1996 to June 1997, in São Sebastião channel, São Paulo, Brazil (45º26'W, 23º50'S). The gametogenesis was similar to that of other zoanthids as shown by histological preparations. Oocyte diameters and maturation stages of testis vesicles were evaluated on squash preparations. Both species showed sequential protogynic herm… Show more

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Cited by 26 publications
(11 citation statements)
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“…As observed from other studies, P. caribaeorum dominated rocky shores throughout an extensive area of the Brazilian coast (Villaça and Pitombo 1997, Castro et al 1999, OigmanPszczol et al 2004). These reports indicate its presence from the Northeastern (Pérez et al 2005) to the Southeastern coast (Boscolo and Silveira 2005), including oceanic islands (Edwards and Lubbock 1983, Gasparini and Floeter 2001), and there is always a relationship with the depth gradient, something about 2 to 8 meters, and also with a weak/intermediate hydrodynamic regime. Despite a wide distribution, its dominance over reef fish communities were not investigated until now.…”
Section: Discussionmentioning
confidence: 97%
See 1 more Smart Citation
“…As observed from other studies, P. caribaeorum dominated rocky shores throughout an extensive area of the Brazilian coast (Villaça and Pitombo 1997, Castro et al 1999, OigmanPszczol et al 2004). These reports indicate its presence from the Northeastern (Pérez et al 2005) to the Southeastern coast (Boscolo and Silveira 2005), including oceanic islands (Edwards and Lubbock 1983, Gasparini and Floeter 2001), and there is always a relationship with the depth gradient, something about 2 to 8 meters, and also with a weak/intermediate hydrodynamic regime. Despite a wide distribution, its dominance over reef fish communities were not investigated until now.…”
Section: Discussionmentioning
confidence: 97%
“…It is recognized as an aggressive competitor against neighbors for vital resources (Suchanek andGreen 1981, Sorokin 1995) and space (Lang 1973, Bak et al 1982 and to be tolerant to high environmental variability (Cooke 1976, Sebens 1982, Sorokin 1991, Kemp et al 2006. Nevertheless, there are still a lot of ecological processes encompassing its dominance which is less investigated, like the effects it could fulfill on the structure of reef communities (Sheppard 1982, Carlon and Olson 1993, Acosta et al 2005, Boscolo and Silveira 2005, Pérez et al 2005. The P. caribaeorum tissue contains a powerful high molecular weight toxin known as palytoxin (PTX) (Gleibs et al 1995).…”
Section: Introductionmentioning
confidence: 99%
“…Este dado corrobora Boscolo & Silveira (2005), que afirmam que estes animais são sensíveis à poluição e a águas salobras.…”
Section: Discussionunclassified
“…Levando em consideração Boscolo & Silveira (2005), que enfatizaram que a fragmentação dos zoantídeos contribui para seu sucesso na dispersão e propagação de clones, a grande cobertura de zoantídeos nesta região pode estar atrelada à presença humana e seu pisoteio, visto que o recife é muito visitado por turistas, veranistas, pescadores e coletores de moluscos e crustáceos.…”
Section: Discussionunclassified
“…The use of molecular technology and analysis techniques such as mitochondrial DNA (Reimer et al, 2004;Sinniger et al, 2005) and nuclear DNA (Reimer et al, 2007a;Swain, 2009) phylogenies may result in a number of species names becoming junior synonyms due to the misidentification of groups. Some morphological characters previously used in identification have been shown to be incorrect in delineating species boundaries (Boscolo & Silveira, 2005;Sinniger & Haussermann, 2009). Phylogenetic analyses allow for the identification of individuals which cannot be done using only morphological characters (Reimer & Fujii, 2010).…”
Section: Introductionmentioning
confidence: 99%