 | ||
| Vol 8 Num 3 |  |
 |
Cirripedia Balanomorpha of Paripe River estuary (Itamaracá Island-Pernambuco-Brazil)
Cristiane Maria Rocha Farrapeira
Universidade Federal Rural de Pernambuco
Universidade Federal Rural de Pernambuco Departamento de Biologia- Laboratório de Cirripedia, Rua D. Manoel de Medeiros, s/nº, Dois Irmãos, Recife-PE, C.E.P. 52.171-900, Brasil.
email: c.farrapeira@db.ufrpe.br keywords
Barnacle, estuary, distribution, tropical mangroves. publication date: 07-01-2008
Abstract
Barnacles are animals characteristic and abundant of intertidal region on marine and estuarine environments worldwide, but they are little known in the areas of tropical mangroves. This study was done with the aim to know the barnacles species of the estuary of the Paripe River (Pernambuco - Brazil), indicating some characteristics of its distribution throughout the estuary. In dry season of 2006, the animals were collected in three stations of the estuary, in all hard substrata available, observing their vertical distribution. In polihaline station (salinities varying from 28.7 to 36.1), it was found eight species: Amphibalanus amphitrite , Amphibalanus improvisus , Amphibalanus reticulatus , Amphibalanus venustus , Chthamalus proteus , Chthamalus bisinuatus , Microeuraphia rhizophorae and Striatobalanus amaryllis . The species classified as euryhaline, found until the mesohaline region of the estuary (salinities varying from 10.8 to 19.6) were: Amphibalanus amphitrite , Amphibalanus improvisus , Amphibalanus reticulatus , Chthamalus proteus and Microeuraphia rhizophorae , whereas in the oligohaline region (salinities varying from 0.2 to 5.2), only Microeuraphia rhizophorae was present, being classified as estuarine component. A horizontal zonation of species of barnacles was clearly observed from the mouth until the upstream, with gradual decrease of number of species and it was confirmed their pattern of vertical distribution in relation to the height of tides, according with its respective ecological valences. The introduced exotic species in Brazil, Amphibalanu s reticulatus and Striatobalanus amaryllis , were well adapted on natural and artificial substrata of the estuary. how to quote this paper
Farrapeira, C.M.R. Cirripedia Balanomorpha of Paripe River estuary (Itamaracá Island-Pernambuco-Brazil). Biota Neotrop. Jul/Sep 2008 vol. 8, no. 3 http://www.biotaneotropica.org.br/v8n3/en/abstract?article+bn00208032008 ISSN 1676-0603. Cited species
Amphibalanus amphitrite Amphibalanus improvisus Amphibalanus reticulatus Amphibalanus venustus Chthamalus proteus Chthamalus bisinuatus Microeuraphia rhizophorae Striatobalanus amaryllis 