Ostracodes (Crustacea) from Cananéia-Iguape estuarine/lagoon system and geographical distribution of the mixohaline assemblages in southern and southeastern Brazil

Iheringia. Série Zoologia

João C. Coimbra²  Ana L. Carreño¹  Eduardo A. Geraque¹  Beatriz B. Eichler¹ 

[1] ,UFRGS Instituto de Geociências Depto. de Paleontologia e EstratigrafiaPorto Alegre RS ,Brasil

关键词: Ostracoda;    geographical distribution;    ecology;    marginal environments;    Brazil;    Ostracoda;    distribuição geográfica;    ecologia;    ambientes marginais;    Brasil;   

DOI  :  10.1590/S0073-47212007000300010

来源: SciELO

【 摘 要 】

The ostracode assemblages from Cananéia-Iguape estuarine/lagoon system (southernmost State of São Paulo) are here discussed in detail for the first time. Thirty-four sites, approximately 1 km equidistant, were sampled along the system, including the Cananéia Sea, Pequeno Sea, Cubatão Sea, Ribeira de Iguape River and Itapitangui River. The ostracodes throughout this area have poor assemblages, with a total of 662 specimens of dead and living organisms. The majority of the ostracode fauna is composed of euryhaline species, as follows: Cyprideis multidentata Hartmann, 1955 (174 specimens), Minicythere heinii Ornellas, 1974 (54 specimens), Tanella gracilis Kingma, 1948 (96 specimens) and Whatleyella sanguinettiae Coimbra, Carreño & Ferron, 1994 (226 specimens). Although there are few studies on the Brazilian mixohaline ostracode faunas, including the euryhaline marginal marine taxa, the published data show that the group is best known in the south and southeast regions. Based on this review and with the new data presented in this paper, the geographical distribution of eight mixohaline key species in southern and southeastern Brazil is also discussed.

【 授权许可】

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