Nadia Bonnet | Universidade Federal do Ceará (original) (raw)
Papers by Nadia Bonnet
The ascidian fauna of the Pacific coast of Panama is poorly known and only recently four species ... more The ascidian fauna of the Pacific coast of Panama is poorly known and only recently four species in the family Ascidiidae were reported on. Ascidia is the only known genus of Ascidiidae in Pacific Panama waters. In the present research, we describe a new species, Ascidia sideralis sp. nov., and we document the new occurrence of A. cf. gemmata and A. cf. liberata (both previously known to the West Pacific), A. archaia (a cosmopolitan species elsewhere in the Pacific), A. ceratodes (previously documented in the eastern N. Pacific), and A. sydneiensis (an Atlantic species on the east coast of Panama) in Pacific Panama waters. A tabular key for the identification of Ascidiidae on the American Pacific coast complements this study.
The Ascidiidae (Ascidiacea: Tunicata) of coastal Brazil. Zoological Studies 50(6): 809-825. The B... more The Ascidiidae (Ascidiacea: Tunicata) of coastal Brazil. Zoological Studies 50(6): 809-825. The Brazilian Ascidiidae comprise 7 species: Phallusia nigra, P. recifensis, Ascidia curvata, A. interrupta, A. multitentaculata, A. santosi, and A. sydneiensis. In this study, we report a Caribbean species (A. tenue) and a Pacific species (A. cf. tapuni ) in coastal Brazil, and we describe 3 new species. We also provide a complementary description of the type specimen of A. santosi and an identification key for Brazilian species.
Introduced ascidians (Tunicata, Ascidiacea) in the Arquipélago de Alcatrazes, State of São Paulo,... more Introduced ascidians (Tunicata, Ascidiacea) in the Arquipélago de Alcatrazes, State of São Paulo, Brazil. Arquipélago de Alcatrazes (24°06'S, 45°42'W) is 36 km off the coast and it is an Ecological Station since 1987. It is also located near the port region of São Sebastião, São Paulo, hence subjected to introduction of exotic species. Forty samples were taken in the principal island of the archipelago to detect possible introductions. Fifteen samples were from Baía do Oratório and 25 from Saco do Funil. Twenty four species distributed in seven families were found. Only five of them were classified as native, four are Atlantic but cryptogenic in the region because of the disjunct distribution; five are cryptogenic with world wide distribution; and one is a certain introduction, Ciona intestinalis (Linnaeus, 1767). There are other nine species that were not identified, a few of them possibly new species. The presence of one introduced species and the high number of cryptogenic species with strong evidence of introduction indicate that the islands are threatened by non-native fauna. The conservation of the Archipelago demands consideration of the port as one source of stress and the control of exotic species as an important aspect of the management procedures.
Six species of Eudistoma are known on the Brazilian coast, most of them from the tropical part of... more Six species of Eudistoma are known on the Brazilian coast, most of them from the tropical part of the country. Here we describe a new species found in shallow waters at 24-27°S, which hang from vertical surfaces or ledges. The colony is formed by clavate lobes connected by the base. The main diagnostic characteristic is the shape of the colony and the larvae which have small projections at the base of the ectodermal ampullae. Other characteristics are: zooid 5-7 mm long with abdomen 3.5 times longer than the thorax, not organized in systems, up to 20 longitudinal and 23 transverse muscle bands on the thorax, decreasing number of stigmata from the first (21-24 stigmata per side) to the third row (13-19 stigmata per side), 16 oral tentacles of two sizes arranged in one circle, 8-13 testis follicles, 2-4 embryos developing in a wide atrial cavity, larva 0.5 mm long with 4 pairs of long ampullae and tail winding ¾ of the way around the trunk.
The ascidian fauna of the Pacific coast of Panama is poorly known and only recently four species ... more The ascidian fauna of the Pacific coast of Panama is poorly known and only recently four species in the family Ascidiidae were reported on. Ascidia is the only known genus of Ascidiidae in Pacific Panama waters. In the present research, we describe a new species, Ascidia sideralis sp. nov., and we document the new occurrence of A. cf. gemmata and A. cf. liberata (both previously known to the West Pacific), A. archaia (a cosmopolitan species elsewhere in the Pacific), A. ceratodes (previously documented in the eastern N. Pacific), and A. sydneiensis (an Atlantic species on the east coast of Panama) in Pacific Panama waters. A tabular key for the identification of Ascidiidae on the American Pacific coast complements this study.
The Ascidiidae (Ascidiacea: Tunicata) of coastal Brazil. Zoological Studies 50(6): 809-825. The B... more The Ascidiidae (Ascidiacea: Tunicata) of coastal Brazil. Zoological Studies 50(6): 809-825. The Brazilian Ascidiidae comprise 7 species: Phallusia nigra, P. recifensis, Ascidia curvata, A. interrupta, A. multitentaculata, A. santosi, and A. sydneiensis. In this study, we report a Caribbean species (A. tenue) and a Pacific species (A. cf. tapuni ) in coastal Brazil, and we describe 3 new species. We also provide a complementary description of the type specimen of A. santosi and an identification key for Brazilian species.
Introduced ascidians (Tunicata, Ascidiacea) in the Arquipélago de Alcatrazes, State of São Paulo,... more Introduced ascidians (Tunicata, Ascidiacea) in the Arquipélago de Alcatrazes, State of São Paulo, Brazil. Arquipélago de Alcatrazes (24°06'S, 45°42'W) is 36 km off the coast and it is an Ecological Station since 1987. It is also located near the port region of São Sebastião, São Paulo, hence subjected to introduction of exotic species. Forty samples were taken in the principal island of the archipelago to detect possible introductions. Fifteen samples were from Baía do Oratório and 25 from Saco do Funil. Twenty four species distributed in seven families were found. Only five of them were classified as native, four are Atlantic but cryptogenic in the region because of the disjunct distribution; five are cryptogenic with world wide distribution; and one is a certain introduction, Ciona intestinalis (Linnaeus, 1767). There are other nine species that were not identified, a few of them possibly new species. The presence of one introduced species and the high number of cryptogenic species with strong evidence of introduction indicate that the islands are threatened by non-native fauna. The conservation of the Archipelago demands consideration of the port as one source of stress and the control of exotic species as an important aspect of the management procedures.
Six species of Eudistoma are known on the Brazilian coast, most of them from the tropical part of... more Six species of Eudistoma are known on the Brazilian coast, most of them from the tropical part of the country. Here we describe a new species found in shallow waters at 24-27°S, which hang from vertical surfaces or ledges. The colony is formed by clavate lobes connected by the base. The main diagnostic characteristic is the shape of the colony and the larvae which have small projections at the base of the ectodermal ampullae. Other characteristics are: zooid 5-7 mm long with abdomen 3.5 times longer than the thorax, not organized in systems, up to 20 longitudinal and 23 transverse muscle bands on the thorax, decreasing number of stigmata from the first (21-24 stigmata per side) to the third row (13-19 stigmata per side), 16 oral tentacles of two sizes arranged in one circle, 8-13 testis follicles, 2-4 embryos developing in a wide atrial cavity, larva 0.5 mm long with 4 pairs of long ampullae and tail winding ¾ of the way around the trunk.