Foraging and mobility in three species of Aciculata (Annelida: Polychaeta)

Pardo, Érica Verónica; Amaral, A. Cecília Z.

doi:10.1590/s1519-69842006000600014

Cited by 17 publications

(10 citation statements)

References 21 publications

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“…However, some species usually classified as carnivores presented guts with macrophyte and macroalgae fragments (E. complanata) or diatoms (N. hebes). In laboratory conditions, E. complanata was found to ingest and respond to fish stimuli instead of ingesting algae [42]. This result reinforces the assumption that every carnivore polychaete, lacking prey or carrion, may act as a herbivore and this omnivory potential should be considered when guild classification is concerned [46].…”

Section: Diet Composition and Breadthsupporting

confidence: 77%

Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds

2016

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Polychaetes are important components of trophic webs in sandy beaches, mainly due to their abundance and diversity of feeding modes, acting as detritivores or primary/secondary consumers. We characterized diets of several polychaete species from intertidal sandy beaches by gut content evaluation. Diet breadth (Levins Index) was calculated for each species to evaluate the influence of different feeding strategies on this metric. Diatom composition was also assessed to verify the relevance of microphtyobenthic primary production to macrobenthic feeding on sandy beaches and its relationship with feeding strategies. A total of 2583 guts from 17 species were evaluated. Diet information is compared with literature, and added to taxa with previously unknown feeding habit. Diet breadths were generally low, but surface deposit feeders had the highest values. Scolelepis squamata guts were dominated by foraminfera, which may either be an specialization or local conditions. Subsurface deposit feeders usually had few items and lower breadths, highlighting the importance of organic matter to this guild. Diatoms were frequently found, and benthic were more frequently consumed than planktonic ones. The high numbers of benthic diatoms found for some species highlight the importance local food sources to sandy beach food webs.

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Section: Diet Composition and Breadthsupporting

confidence: 77%

Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds

2016

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“…This same study was used to classify species according to the feeding habit of their families, but other studies were used to revise them (JONES, 1968;NOYES, 1980;WORD, 1980;PLEIJEL, 1983;DOBBS;SCHOLLY, 1986;FONG, 1987;GASTON, 1987;CARRASCO;OYARZÚN, 1988;NIELSEN et al, 1995;FERNER;JUMARS, 1999;GIANGRANDE et al, 2000;BRITAEV;LYSKIN, 2002;LEE et al, 2004;COSTA et al, 2006;AMARAL, 2006;DUBOIS et al, 2009;SMART;DASSOW, 2009;PLYUSCHEVA et al, 2010). Generalized linear models with distance, sediment (Sed) and/or transect (Tr) as predictor variables were also fitted to evaluate the functional community (trophic groups).…”

Section: Discussionmentioning

confidence: 99%

Looking at the soft-bottom around a coastal coral reef: the impact of terrigenous input on Polychaeta (Annelida) community

Quesada-Silva

Pires-Vanin

2017

Braz. j. oceanogr.

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Erosion on coral reefs produces fragments of the constructor organisms that are scattered all around, thus enlarging the reef boundaries. Statistical modelling approach was used to investigate whether the Polychaeta community around Sebastião Gomes reef (Abrolhos Bank, Brazil) is influenced equally by sediment characteristics and/or by position related to the reef, that are variables related to the terrigenous input influence. In July 2007, a period dominated by winds that resuspend fine sediment from the land to coastal reefs, sediment samples were taken on four transects perpendicular to the reef (S, W, N and E) and a total of 121 species of polychaetes were recorded. The most abundant species was the carnivorous Goniadides carolinae and the model selected for it approximates to the best models fitted for both total macrofauna and polychaete abundance. These models represented higher abundance in coarse carbonate sediments on windward reef faces, where there is almost no terrigenous sediment. On the other hand, the Polychaeta richness did not depend on the transects. Sebastião Gomes reef is one of the many coastal reefs from Abrolhos Bank, whose healthy is probably in danger because of the increase of mud related to human activities, as deforestation and, recently, mining waste. AbstrAct

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“…Polychaetes are important members of the macrofauna, found in nearly every marine habitat, from intertidal to the deepest sediments (Rouse & Pleijel, 2001). They are among the marine invertebrates with the greatest morphological diversity, which is most likely related to their occurrence in a wide variety of habitats (Pardo & Amaral, 2006).…”

Section: Introductionmentioning

confidence: 99%

Age and growth of Alitta succinea (Polychaeta; Nereididae) in a tropical estuary of Brazil

et al. 2013

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The aim of this work was to study the dynamics of Alitta succinea population growth in a tropical estuary. The organisms were collected in the polyhaline area of Pina Basin, north-eastern Brazil, in lower and shallow subtidal consolidated substrates, from October 2009 to March 2011. Fifteen samples with a size of 0.01 m 2 were collected every month. A total of 2064 A. succinea individuals were measured for growth analysis, and the measure used was the length from prostomium to the 25th setiger. Growth parameters were estimated by the frequency -length distribution data from three different functions (i.e. von Bertalanffy, Gompertz and Richards). The differences in the densities of A. succinea were significant between the months of the dry and the rainy season, with the rain pattern being the factor that most affects the A. succinea life cycle. According to Akaike information criteria, the von Bertalanffy and Gompertz models were the ones that presented the best fit with the growth curve of A. succinea for the studied period. Using the Bhattacharya method for the analysis of modal progression, we identified eight cohorts. The lowest recruitment values were found in July and August 2010, respectively, and the remaining months had numbers of recruits that were representative of the total population. The growth performance index (Ø ′ ) found was 2.86. The maximum longevity indicates that specimens of A. succinea live between 586 and 953 d, and the instantaneous mortality rate (Z) is 1.53 yr 21 .

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Foraging and mobility in three species of Aciculata (Annelida: Polychaeta)

Cited by 17 publications

References 21 publications

Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds

Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds

Looking at the soft-bottom around a coastal coral reef: the impact of terrigenous input on Polychaeta (Annelida) community

Age and growth of Alitta succinea (Polychaeta; Nereididae) in a tropical estuary of Brazil

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