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| Pinto,Larissa R.; Borzone,Carlos A.. |
| RESUMO As descargas de água doce permanentes em praias arenosas, conhecidas como sangradouros, promovem alterações em diferentes escalas espaciais e temporais sobre as características ambientais, e consequentemente sobre as populações macrobentônicas. O objetivo deste estudo foi avaliar as alterações da abundância, distribuição e estrutura populacional do isópode Tholozodium rhombofrontalis (Giambiagi, 1922) em um sangradouro permanente. Coletas sazonais foram realizadas na praia de Barrancos, cidade de Pontal do Paraná, estado do Paraná, sul do Brasil, em três locais: sangradouro (dentro do sangradouro), intermediário (a 30 m de distância do sangradouro) e distante (a 150 m de distância do sangradouro), durante as quatro estações dos anos de 2012 e 2013.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peracarida; Descarga de água doce; Praia arenosa exposta; Estrutura populacional. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100243 |
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| Streck-Marx,Morgana Taís; Castiglioni,Daniela da Silva. |
| Abstract: The current study describes a new species of Hyalella found in a natural pond at the municipality of Palmeira das Missões, located in the northwestern region of state of Rio Grande do Sul, southern Brazil. The new species differs from other species found in state of Rio Grande do Sul (Hyalella bonariensis, H. castroi, H. kaigang, H. imbya, H. georginae, H. gauchensis, H. montenegrinae and H. pampeana) in the type and number of setae on uropods, on telson and on the inner face of gnathopod 1. Besides, Hyalella palmeirensis is morphologically similar to H. curvispina, especially in the shape and number of setae of uropods. However, H. palmeirensis differs from H. curvispina in having only two simple setae on telson, the inner face of gnathopod 1... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Freshwater crustaceans; Hyalella; Peracarida; Taxonomy. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100203 |
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| Błażewicz, Magdalena; Jóźwiak, Piotr; Menot, Lenaick; Pabis, Krzysztof. |
| The benthic fauna associated with polymetallic nodule fields is scarcely studied. Studies on species richness and distribution patterns are indispensable for the conservation of the abyssal ecosystem and for the development of management strategies for sustained commercial activities in the future. Here, we analysed the distribution patterns and diversity of tanaidacean communities associated with four International Seabed Authority licenced areas (BGR, IOM, GSR, Ifremer) located in the Clarion-Clipperton Fracture Zone (North-East equatorial Pacific) and the one Area of Particular Environmental Interests (APEI3). The study was based on 34 box core samples collected at depths ranging from 4,200 to 5,000 m. Altogether, 98 species (446 individuals) were... |
| Tipo: Text |
Palavras-chave: Peracarida; Biodiversity; Productivity; Deep-sea mining; Conservation. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00508/61956/66046.pdf |
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| González,Exequiel R; Haye,Pilar A; Balanda,Maria-José; Thiel,Martin. |
| Los crustáceos peracáridos comprenden un diverso grupo de invertebrados, comunes en ambientes terrestres, acuáticos dulceacuícolas y marinos. En este trabajo se revisa la diversidad de especies de los órdenes Amphipoda, Cumacea, Isopoda, y Tanaidacea, actualmente reportada para Chile. Otros grupos taxonómicos comúnmente incluidos en Peracarida no han sido citados aún para Chile. Presentamos en este trabajo una lista sistemática de los taxa de peracáridos y su distribución geográfica en Chile desde los 18°S hasta los 56°S, incluyendo el Archipiélago de Juan Fernández e Isla de Pascua. En un análisis preliminar, la distribución de las especies registradas para Chile sugiere que la diversidad de especies aumenta de norte a sur. El hecho que aún existen... |
| Tipo: Journal article |
Palavras-chave: Peracarida; Amphipoda; Isopoda; Tanaidacea; Cumacea; Pacifico Sudoriental; Chile. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000200006 |
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| Araujo, Paula Beatriz; Leistikow, Andreas. |
| Several species of “philosciid” Oniscidea are known from Brazil, most of them were found in the southern and eastern parts of this country. The genera Atlantoscia Ferrara & Taiti, 1981, Benthana Budde-Lund, 1908 and Balloniscus Budde-Lund, 1908, the latter considered to represent a separate family Balloniscidae Vandel, 1963, are considered the only neotropical philosciids bearing respiratory areas on their pleopods. Therefore, representatives of these genera are re-examined to shed new light on the question whether these species can be considered to be a monophylum with the autapomorphy “respiratory areas present”, The phytogeny of the above-mentioned genera is discussed under morphological and biogeographical aspects. Furthermore, a remarkable new... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Peracarida; Isopoda; Philosciids; Pleopodal lungs; Biogeography; Brazil. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/534349 |
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| Knopf, F.; Koenemann, S.; Schram, F.R.; Wolff, C.. |
| We have examined the caudal regions of diverse peracarid and pancarid malacostracans using light and scanning electronic microscopy. The traditional view of malacostracan posterior anatomy is not sustainable, viz., that the free telson, when present, bears the anus near the base. The anus either can occupy a terminal, sub-terminal, or mid-ventral position on the telson; or can be located on the sixth pleomere – even when a free telson is present. Furthermore, there is information that might be interpreted to suggest that in some cases a telson can be absent. Embryologic data indicates that the condition of the body terminus in amphipods cannot be easily characterized, though there does appear to be at least a transient seventh segment that seems to fuse... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Anus; Pancarida; Peracarida; Pleomeres; Proctodaeum; Teloblasts; Telson; Urosome; 42.74. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/210767 |
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