Ports of big coastal cities are exposed to exotic species as a consequence of shipping traffic. As the Port of Recife receives an annual average of 491 ships from other regions of Brazil and from all over the world, this work was aimed at knowing which marine animals were passively transported on such vessels hulls, in order to map and monitor new bioinvasions in the area. Thus, 32 vessels of several origins were investigated between November 2005 and March 2006, samples were taken and the macrofauna identified. Sixty species of associated animals were identified, consisting of 28 sessile species, particularly the Cirripedia Balanomorpha and Lepadomorpha as dominants, 8 sedentary animals, namely Mytillidae and Dreissenidae and 23 free-living species, particularly, Caprellidae, Gammaridae, Tanaidacea, Turbellaria, Nemertea and Polychaeta. The first occurrence of Conchoderma virgatum was recorded with exact location for the Brazilian littoral, and Conchoderma auritum, Amphibalanus subalbidus and Haliplanella lineata were recorded for the first time at the littoral of Pernambuco State. The invasion pathway was confirmed for Amphibalanus reticulatus and Mytilopsis leucophaeta, invader species of the estuarine area of Recife's city. Megabalanus coccopoma was considered as a risk invader species for the region.
Regiões portuárias das grandes cidades litorâneas estão sujeitas à recepção de espécies exóticas como conseqüência da movimentação dos navios. Como o Porto do Recife recebe uma média anual de 491 atracações de navios, provenientes de várias regiões do Brasil e do mundo, objetivou-se conhecer quais animais marinhos eram transportados passivamente nos cascos das embarcações para mapear e monitorar novas invasões biológicas na área. Assim, foram investigados 32 barcos de diversas origens, nos meses de novembro de 2005 a março de 2006, tendo a macrofauna sido amostrada e identificada. Foram encontradas 60 espécies de animais associados, sendo: 28 espécies incrustantes, destacando-se os Cirripedia Balanomorpha e Lepadomorpha, como dominantes, 8 sedentárias, destacando-se os Mytillidae e Dreissenidae e 23 vágeis, sendo os principais: Caprellidae, Gammaridae, Tanaidacea, Turbellaria, Nemertea e Polychaeta. A primeira citação de Conchoderma virgatum foi registrada com localização exata para o litoral brasileiro, e Conchoderma auritum, Amphibalanus subalbidus e Haliplanella lineata foram registradas pela primeira vez para o litoral do estado de Pernambuco. O meio de dispersão foi confirmado para Amphibalanus reticulatus e Mytilopsis leucophaeta, espécies invasoras da área estuarina da Cidade do Recife. Megabalanus coccopoma foi considerada como espécie em risco de invasão para a região

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, A. improvisus, A. reticulatus, A. venustus, Chthamalus proteus, C. bisinuatus Resumen: Los cirrípedos son animales característicos y abundantes en la región intermareal de los ambientes marinos y estuarinos de todo el mundo, pero son poco conocidos en las áreas de manglares tropicales. El presente estudio fue realizado con el objetivo de conocer las especies de cirrípedos en el estuario del Río Paripe (Pernambuco -Brasil), señalando algunas características de su distribución a lo largo del estuario. En la estación de estiaje de 2006, los animales fueron colectados en tres estaciones del estuario, en todos los substratos duros disponibles, observando su distribución vertical en los mismos. En la estación polihalina (salinidades variando de 28,7 hasta 36,1), se encontraron ocho especies: Amphibalanus amphitrite, A. improvisus, A. reticulatus, A. venustus, Chthamalus proteus, C. bisinuatus, Microeuraphia rhizophorae y Striatobalanus amaryllis. Las especies clasifi cadas como eurihalinas, encontradas hasta la región mesohalina del estuario (salinidades variando de 10,8 hasta 19,6) fueran: Amphibalanus amphitrite, A. improvisus, A. reticulatus, Chthamalus proteus y Microeuraphia rhizophorae, mientras que en la región oligohalina (salinidades variando de 0,2 hasta 5,2), solamente M. rhizophorae estuvo presente, sendo por tanto, clasifi cada como componente estuarino. Una zonación horizontal de especies de cirrípedos fue claramente observada a partir de la desembocadura hasta al montante del río, con disminución gradual del número de especies y fue confi rmado su padrón de distribución vertical en relación a las alturas de mareas, observadas las respectivas valencias ecológicas. Las especies exóticas introducidas en Brasil, Amphibalanus reticulatus y Striatobalanus amaryllis, estaban bien adaptadas en los substratos naturales y artifi ciales del estuario.

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RESUMOAs regiões estuarinas das grandes cidades litorâneas estão sujeitas a fortes agressões ambientais, especialmente de fontes poluidoras provenientes de esgotos domésticos, hospitalares e industriais. A fauna presente geralmente é muito resistente a estes fatores antrópicos e, particularmente entre os cirrípedes, existem muitas espécies utilizadas como Palavras Chaves: Cirrípedes, estuário, ecologia, inventário. ABSTRACTThe estuarine regions of the great cities are under intense environmental aggressions, especially polluting sources from domestic, hospital and industrial sewers. The present fauna usually is very resistant to these anthropic factors and, particularly among the barnacles, there are many species used as pollution indicators. The aim of this work was to list the species of Cirripedia Balanomorpha that occur in the Capibaribe, Pina, Jiquiá, Tejipió and Jordão

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This paper records the new occurrence of spaghetti bryozoan Zoobotryon verticillatum at the

. 2009. Vertical zonation of the hard substrata macrofauna of the Massangana River estuary, Suape Bay (Pernambuco, Brazil). Biota Neotrop. 9(1): http://www.biotaneotropica. org.br/v9n1/en/abstract?article+bn01609012009. Abstract:The estuarine area of the Massangana River (Pernambuco, Brazil) undergoes several kinds of interventions as a result of the activities of the Suape Industrial and Harbor Complex, which could affect local biotic communities. Thus, this study aimed to verify the composition of the benthic macrofauna of hard substrates regarding their vertical distribution in order to support the future biomonitoring of possible changes in this complex. The invertebrates found in an area of 519 m 2 were collected and their distribution on the biogenic and abiogenic substrates was described. A total of 79 species were found, primarily in the mangroves and distributed in three intertidal zones: a Chthamaletum, which comprised the intertidal and upper shore, the balanid zone, with barnacles and oysters in the mid intertidal, and the Bostrychietum, in the lowest region. In general, this matched the Brazilian and international vertical distribution patterns for mangrove invertebrates. The presence of rocky substrate and the area's high salinity made possible the occurrence of 28 species-including the coral Siderastrea stellata -in an estuarine area. The enlarged distribution of the bivalve Isognomon alatus, the barnacle Amphibalanus reticulatus, and the bryozoans Biflustra savartii, Bowerbankia gracilis, and Conopeum reticulum on the Brazilian coast can be explained by the proximity to the Port of Suape, which allows for passive transportation on ships. The scattered distribution of the fouling organisms among the substrates and the absence of characteristic animals of this ecosystem (such as the mussels) suggest that the environment is already undergoing some stress due to the diverse human interventions occurring in this area. Keywords: spatial distribution, macrobenthos, mangrove, biodiversity, Northeast Brazil. Resumen: El área estuarina del río Massangana (Pernambuco, Brasil) está sujeta a diversas intervenciones antropomórficas resultantes de las actividades del Complejo Industrial y Portuario de Suape, que pueden afectar las comunidades bióticas. Con esa perspectiva, este estudio tuvo como finalidad verificar la composición de la macrofauna bentónica de los sustratos sólidos, en su gradiente de distribución vertical, que sirva de referencia para futuros monitoreos biológicos relacionados a los cambios que pueden ocurrir en el complejo portuario. Se colectaron los invertebrados presentes en un área de 519 m 2 y su distribución en los sustratos biogénicos y abiogénicos es mostrada en el siguiente trabajo. Fueron encontradas 79 especies presentes principalmente en los mangles y distribuidas en tres zonas del intermareal: Chthamaletum, delimitando el supralitoral, "zona balanoide", conteniendo cirripedios y ostras, en la región intermareal media, y el Bostrychietum, en la región inferior. Esta distribución co...