Amphipoda
Mostrando 1-12 de 61 artigos, teses e dissertações.
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1. A new species of freshwater amphipod (Crustacea, Amphipoda, Hyalellidae) from state of Rio Grande do Sul, Southern Brazil
Resumo: O presente trabalho descreve uma nova espécie de Hyalella encontrada numa nascente no município de Palmeira das Missões, localizado na região noroeste do estado do Rio Grande do Sul, sul do Brasil. A nova espécie difere das outras espécies encontradas no estado do Rio Grande do Sul (Hyalella bonariensis, H. castroi, H. kaigang, H. imbya, H. geo
Biota Neotrop.. Publicado em: 04/11/2019
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2. Ecological aspects of natural populations of Hyalella pampeana (Crustacea, Amphipoda, Hyalellidae) from the Natural Reserve Island of Martín García (Río de La Plata, Argentina)
Abstract: Freshwater amphipods of the genus Hyalella have a great importance in aquatic ecosystems due to their role in matter and energy cycling and its utilization as bioindicators of environmental health. The aim of this work was to analyze relevant population parameters of Hyalellapampeana, such as population density and structure, individual body size,
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
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3. Population and reproductive biology of two caprellid species (Crustacea: Amphipoda) associated to Sargassum cymosum (Phaeophyta: Fucales) on the southeast coast of Brazil
Abstract Caprellid amphipods are common crustaceans at Sargassum beds of southeastern Brazil and constitute an important link between primary producers and marine consumers. The goal of this study is to evaluate population and reproductive biology of two caprellid species: Paracaprella tenuis Mayer, 1903 and Pseudaeginella montoucheti Quitete, 1971. Sargassu
Nauplius. Publicado em: 28/03/2019
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4. Macroinvertebrados bentônicos e degradação da fitomassa como indicadores de funções ecossistêmicas em arroz irrigado por inundação
Resumo: O objetivo deste trabalho foi avaliar as funções ecossistêmicas de um banhado natural e de lavouras de arroz irrigado por inundação, manejadas nos sistemas convencional e orgânico, por meio da degradação da fitomassa e da colonização desse material por macroinvertebrados bentônicos. O experimento foi realizado em um banhado natural e em du
Pesq. agropec. bras.. Publicado em: 2017-04
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5. Population dynamics of a freshwater amphipod from South America (Crustacea, Amphipoda, Hyalellidae)
Abstract This study aimed to characterize the population dynamics of Hyalella bonariensis Bond-Buckup, Araujo & Santos, 2008 from headwater spring in a rural area of state of Rio Grande do Sul, Brazil. Four samples were collected in August (winter) and October (spring) of 2012 and January (summer) and April (autumn) of 2013. Ovigerous females and precopula p
Nauplius. Publicado em: 12/12/2016
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6. Aspects of the reproductive biology of the freshwater/brackish amphipod Quadrivisio lutzi (Crustacea, Amphipoda) from an unstable coastal lagoon of southeastern Brazil
ABSTRACT The amphipod Quadrivisio lutzi (Shoemaker, 1933) (Maeridae) inhabits the coastal lagoons of southeastern Brazil, which are highly unstable environments. Drastic reduction in the abundance and distribution of this amphipod on these lagoons has been observed. The constant recovery of its populations suggests that this species may show a reproductive s
Nauplius. Publicado em: 19/04/2016
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7. Taxonomy and distribution of Talitroides alluaudi (Chevreux, 1896) and T. topitotum (Burt, 1934) (Amphipoda, Talitridae) in Atlantic rain forests of southeastern Brazil
ABSTRACT The family Talitridae Rafinesque, 1815 is the only group, among the amphipods, that colonized the terrestrial environment, and more than half of its species live in tropical and subtropical forests. Nowadays, the family has approximately 270 species described in 64 genera. Leaf litter samples from Atlantic forests and urban areas of the states of Ri
Nauplius. Publicado em: 22/03/2016
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8. Reproductive aspects of Hyalella carstica (Amphipoda: Hyalellidae) in a natural environment in southeastern Brazil
Abstract The reproductive aspects of populations are important determinants of their ability to maintain themselves throughout time. In the case of amphipods from the genus Hyalella Smith, 1874, the reproductive period is easily determined by the presence of ovigerous females and pre-copula pairs in the population. This study evaluated the fecundity, pairing
Nauplius. Publicado em: 2015-12
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9. Temporal variation of the gammaridean fauna (Crustacea, Amphipoda) associated with the sponge Mycale angulosa (Porifera, Demospongiae) in southeastern Brazil
ABSTRACTMarine sponges are advantageous microhabitats because of their complex architecture. The system of internal canals provides circulation of water and deposition of particulate organic matter, ensuring availability of food and shelter. Diminutive amphipods have little difficulty penetrating the spaces of sponges and remain in their aquiferous systems a
Nauplius. Publicado em: 2015-06
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10. Description of the first species of Metharpinia (Crustacea: Amphipoda: Phoxocephalidae) from Brazil
A new amphipod species of Metharpinia Schellenberg, 1931 is described from Campos Basin, southeastern Brazilian coast. The material was collected with van Veen grab from unconsolidated substratum, off the mouth of the Paraíba do Sul River. The new species can be distinguished from its congeners by presenting a strongly constricted rostrum and a slender palp
Zoologia (Curitiba). Publicado em: 2015-02
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11. Capítulo 18 - Monitoramento de populações de talitridae (crustacea:amphipoda)
Parte do livro:Protocolos para o monitoramento de habitats bentônicos costeiros
Autor(es): Veloso, Valéria; Cardoso, Ricardo Silva; Serejo, Cristiana Silveira
ReBentos. Publicado em: 2015
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12. Colonização de folhiço por invertebrados aquáticos em um córrego de Mata Atlântica
A vegetação ripária presente ao longo de córregos em áreas de Mata Atlântica contribui para a formação de serapilheira bastante heterogênea no leito de córregos. Com o objetivo de investigar a estrutura e composição da comunidade de invertebrados aquáticos durante o processo de degradação de detritos foliares de duas espécies vegetais present
Braz. J. Biol.. Publicado em: 2014-05