Nereididae (Annelida, Polychaeta) da costa nordeste do Brasil: II. Gêneros Namalycastis, Ceratocephale, Laeonereis e Rullierinereis

Santos, Cinthya Simone Gomes; Lana, Paulo da Cunha

doi:10.1590/s0073-47212001000200020

Cited by 12 publications

(9 citation statements)

References 8 publications

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“…were dominant in the study area with the greatest abundance being recorded in silty-clay substrate. This configuration of the substrate seems to be a preferred habitat for these species, as previously described by Santos & Lana (2001) for estuarine regions of north-eastern Brazil.…”

Section: Discussionsupporting

confidence: 73%

Distribution of benthic fauna in sediment grains and prop roots of a mangrove channel in south-eastern Brazil

et al. 2016

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We examined the benthic fauna in four areas along a mangrove tidal channel in south-eastern Brazil, between October 2008 and August 2009. The tested hypothesis is that the most abundant groups avoid competition as they occupy different types of substrata and that the longitudinal distance from the sea also affects the occurrence of benthic fauna along the channel. We also examined the prop root epibiont fauna to describe this different community. Polychaeta was the dominant group in the sediment whereas Isopoda and Tanaidacea were the dominant groups on the prop roots. We found a tendency for higher infauna species richness and diversity in the innermost channel area during the summer. Higher abundance of epibiont fauna was also found in summer with tidal movements allowing the colonization of the prop roots of the mangrove forest by some taxa. The polychaetes Ceratocephale sp. and Laeonereis acuta had indication of habitat partitioning, with the first occurring mainly in very fine sand sediment whereas the latter preferred medium sand sediment. The microcrustaceans Chelorchestia darwini and Tanaidacea sp. 1 occurred in high abundance colonizing the prop roots. Exosphaeroma sp. was found in high abundance in infauna and epibiont fauna. The tested hypothesis of spatial partitioning of the mangrove channel by the benthic fauna was confirmed with the most abundant species occupying the substrata with different grain fractions and prop roots in different stations.

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Section: Discussionsupporting

confidence: 73%

Distribution of benthic fauna in sediment grains and prop roots of a mangrove channel in south-eastern Brazil

et al. 2016

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“…The family Nereididae was relatively abundant in both mangrove forests. Varying in size from a few millimetres to a metre, they are considered sedentary, with detritivorous or herbivorous feeding habits (Santos & Lana, 2001). The genus Namalycastis , the most abundant member of this family in the present study, is commonly associated with fallen logs in mangroves (Glasby, 1999) and in roots of Rhizophora mangle (Santos & Lana, 2001)…”

Section: Discussionmentioning

confidence: 99%

Spatial and temporal variation in the abundance and taxonomic composition of estuarine and terrestrial macrofauna associated with mangrove logs

et al. 2013

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Brazilian mangroves have ecological and economic importance, with molluscs, crustaceans and polychaetes being diverse and common faunal groups. The present study characterizes the macrofauna associated with logs from two mangrove forests in Pará State, northern Brazil, sampled in September, January and April, between 2008 and 2010, at three different distances from a tidal channel (2, 10, 20 m). In each forest, five logs (diameter/length: 10/40 cm) were randomly selected at each distance, totalling 15 logs per sampling date. The macrofauna was removed, counted and identified. Three-way analysis of variance was used to compare mean numbers of individuals, numbers of taxa and Berger–Parker dominance per log, between forests and among sampling dates and distances from the tidal channel. Non-metric multidimensional scaling and permutational multivariate analyses of variance were used to investigate macrofaunal structure in relation to the three factors. A total of 5437 individuals from both estuarine and terrestrial faunas was found in both forests, with 85 taxa distributed among Mollusca, Annelida, Arthropoda and Nemertea. Abundance increased from September through January to April in both mangrove forests. The most dominant species was Neoteredo reynei, representing 48% of total abundance. No significant difference in any variable was found among the two forests and between the three distances. Logs may represent a stable microhabitat for the macrofauna, with little variation in humidity, salinity or temperature, despite different distances from the tidal channel. However, macrofaunal structure varied significantly between forests and among sampling dates, probably due to seasonal differences in precipitation and salinity between both locations.

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“…The species Perinereis ponteni Kinberg (1866) and P. anderssoni Kinberg (1866) were considered synonymous by Hartman (1948, 1959) because they occur in sympatry along the Western Atlantic (Lana, 1984; de León-González & Solis-Weiss, 1998; de León-González, 1999; Amaral et al , 2013; de León-González & Gothel, 2013). Although they are considered as distinct species by some authors (Santos, 1996; Santos & Lana, 2000; Steiner, 2000; Santos & Steiner, 2006; Ipucha et al ., 2007; de Léon-Gonzalez & Gothel, 2013), these two species have been treated as synonymous even in recent reports and databases (Espinosa et al ., 2007; WORMS, 2014).…”

Section: Introductionmentioning

confidence: 99%

Morphometric analysis of two sympatric species ofPerinereis(Annelida: Nereididae) from the Brazilian coast

2015

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Species definition is not an easy task, when considering the more than 27 known species concepts. Among them, the morphospecies concept has been one of the most applied since it is based on the use of observable morphological features. Morphometry has been used to delimitate morphospecies or similar taxa complementing the morphological observations and contributing to clarify taxonomic problems. Specimens from the sympatric species Perinereis anderssoni and Perinereis ponteni, collected from the north-eastern to southern coast of Brazil and considered synonymous by some authors, were compared through morphometric analyses for the evaluation of their taxonomic status. Morphometric analysis indicates that notopodial cirri lengths in the median and posterior regions on the body clearly allowed differentiation between the two species. Our results indicate that the number and arrangement of paragnaths demonstrate a pattern of variation that effectively differs and could be used to discriminate these two Perinereis species. This distinction was confirmed by the restricted among-population variability within each species, even when populations that are geographically very distant from each other were considered.

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Nereididae (Annelida, Polychaeta) da costa nordeste do Brasil: II. Gêneros Namalycastis, Ceratocephale, Laeonereis e Rullierinereis

Cited by 12 publications

References 8 publications

Distribution of benthic fauna in sediment grains and prop roots of a mangrove channel in south-eastern Brazil

Distribution of benthic fauna in sediment grains and prop roots of a mangrove channel in south-eastern Brazil

Spatial and temporal variation in the abundance and taxonomic composition of estuarine and terrestrial macrofauna associated with mangrove logs

Morphometric analysis of two sympatric species ofPerinereis(Annelida: Nereididae) from the Brazilian coast

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