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| Senna,André R.; Andrade,Luiz F.; Guedes,Urssula N.; Pereira-Filho,Guilherme H.. |
| ABSTRACT Synopia ultramarina Dana, 1853 is considered a circumtropical species and was originally described based on material collected from two localities near halfway between the southwestern Africa and northeastern Brazil. The species is redescribed here with samples from Fernando de Noronha Archipelago, Pernambuco state, northeastern Brazil. The material examined was collected by SCUBA diving, from rhodolith beds, in Ressureta Channel, between Meio and Rata Islands. Additional material was collected from off Ceará state coast, during environmental consultancies, by Petrobras S. A., and off Pernambuco state coast, during the Project REVIZEE NE IV. Discussion on morphological variations of the species is presented, based on the studied material and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crustacea; Oceanic island; New record; Taxonomy; Southwestern Atlantic. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100217 |
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| Revillon, Sidonie; Teagle, Damon A. H.; Boulvais, Philippe; Shafer, John; Neal, Clive R.. |
| Hole 1205A was drilled on Nintoku Seamount, which lies in the midportion of the Emperor Seamount Chain. This seamount was emergent similar to 56 Myr ago but was submerged by 54 Ma, so the lavas have endured weathering in both subaerial and submarine environments. We have studied the petrology, mineralogy, and geochemistry of intercalated altered basalts, breccias, and soil samples recovered at Hole 1205A to quantify the chemical exchanges between the seamount and seawater and/ or meteoric fluids. The secondary mineralogy is relatively uniform throughout the section and comprises smectite, Feoxyhydroxides, iddingsite, and Ca-carbonates. Soils are composed of variably altered basaltic clasts in a matrix of kaolinite, smectite, and vermiculite with minor... |
| Tipo: Text |
Palavras-chave: Geochemistry : major and trace element geochemistry; Geochemistry : alteration and weathering processes; Geochemistry : geochemical cycles; Oceanic island; Isotope geochemistry; Chemical fluxes; Alteration; Hole 1205A; Ocean Drilling Program. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2435.pdf |
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| Sampaio,Cláudio L. S.; Nunes,José de Anchieta C. C.; Mendes,Liana F.. |
| Acyrtus pauciradiatus, new species, is described on the basis of three specimens collected at Fernando de Noronha Archipelago, state of Pernambuco, Brazil. It differs from its congeners by having a reduced number of rays in the pectoral, dorsal, and anal fins and is more isolated geographically, than any other species in the genus. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oceanic island; Endemism; Reef fish; Systematics. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000400002 |
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| Bouth,Helena F; Leite,Tatiana S; Lima,Françoise D. de; Oliveira,Jorge E. Lins. |
| The habitat, population density, distribution and diet of Octopus insularis Leite & Haimovici, 2008 were studied in the Atol das Rocas Biological Reserve, based on visual census carried out in fixed quadrants. For each octopus den, we collected data on octopus size, substrate, type of den, and food remains around it. A total of 100 octopus dens were found within the fixed quadrants. The highest density occurred at Mapas area (0.30 inds/100 m²) and the lowest at Crista Algálica (0.07 inds/100 m²). The preferred den type was the one on the reef bed (69%), reinforcing the importance of rocky substrates for this species. A total of 454 food items, classified into 22 distinct taxa, were collected. The class Crustacea was best represented, accounting for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Habitat; Oceanic island; Octopus. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100007 |
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| PALMA,ÁLVARO T; CÁCERES-MONTENEGRO,ISMAEL; BENNETT,RICHARD S; MAGNOLFI,SPARTACO; HENRÍQUEZ,LUIS A; GUERRA,JORGE F; MANRÍQUEZ,KAREN; PALMA,R. EDUARDO. |
| Two lobster species coexist in the southeast Pacific Juan Fernández archipelago, Jasus frontalis (Milne-Edwards, 1837) and Acantharctus delfini (Bouvier, 1909). Like most lobster species they undergo a prolonged larval period, which is particularly long for J. frontalis (> 16 months). Though typical of Palinurids, this long larval duration is usually not thought to be conducive to local recruitment. While it is known that settlement is confined to the three islands of the archipelago (Robinson Crusoe, Alejandro Selkirk and Santa Clara) and Desventuradas Islands (aprox. 800 km to the north), it remains poorly understood how local larval supply allows such distribution pattern. The goal of this study is twofold. Firstly, we aimed to characterize the... |
| Tipo: Journal article |
Palavras-chave: Endemism; Lobsters; Oceanic island; Phyllosoma. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000300006 |
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