Feeding behavior of Scolelepis sp. (Polychaeta: Spionidae)

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

doi:10.1590/s1679-87592004000100007

Cited by 23 publications

(11 citation statements)

References 12 publications

(38 reference statements)

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“…The occurrence S. chilensis at exposed sandy beaches along the Rio de Janeiro coastline was also recorded by Rocha et al (2009). Observations of the feeding behavior of Scolelepis have shown its ability to catch suspended particles from the water column using their feeding palps in high energy conditions, such as found in exposed sandy beaches (Dauer, 1983;Pardo and Amaral, 2004). As well as Scolelepis, saccocirrid polychaetes are common in coarse sediments associated with high-energy beaches (Brown, 1981).…”

Section: Discussionmentioning

confidence: 97%

Spatial distribution of intertidal sandy beach polychaeta along an estuarine and morphodynamic gradient in an eutrophic tropical bay

Omena

Lavrado

Paranhos

et al. 2012

Marine Pollution Bulletin

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Section: Discussionmentioning

confidence: 97%

Spatial distribution of intertidal sandy beach polychaeta along an estuarine and morphodynamic gradient in an eutrophic tropical bay

Omena

Lavrado

Paranhos

et al. 2012

Marine Pollution Bulletin

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“…Polychaetes identified as Scolelepis squamata can modify the environment through their burrowing and deposit-feeding activities, and by producing pseudofaeces (Dauer, 1983;Pardo and Amaral, 2004;Van Hoey et al, 2004). In experimental treatments with fauna from an ultradissipative sandy beach at De Panne, North Sea, Belgium, S. squamata was able to facilitate the early establishment of two non-predatory nematode species by inhibiting the continuous colonisation of initially dominant opportunistic nematode species represented only by Enoplolaimus litoralis (Maria et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches?

et al. 2013

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The role of a dominant macrobenthic polychaete, Scolelepis squamata, in the colonisation of defaunated tropical sediments by sandy-beach nematodes was investigated and compared with a previous colonisation experiment carried out on a temperate sandy beach. Experimental cylinders, equipped with lateral windows allowing infaunal colonisation, were filled with defaunated sediment containing two treatments, with and without S. squamata. These cylinders were inserted into microcosms containing sediment with indigenous meiofauna collected from the field. The treatments were incubated in the laboratory at ambient temperature and salinity for 7, 14 and 21 days. The nematode assemblages in both treatments did not differ in composition between treatments and from the natural assemblages, suggesting that all the species were equally able to colonise the experimental cores. The presence of the polychaete did not affect the development of the nematode community composition, in contrast to the results from a previous temperate-beach experiment. However, our results did not indicate whether the difference in results was caused by the different behaviour of the polychaete specimens, or by the different composition and response of the present nematode community.Keywords: meiofauna, Scolelepis squamata, Fazenda Beach, microcosm experiment, biological interactions.A colonização dos sedimentos de praias tropicais por nematódeos na presença de Scolelepis é similar ao processo de colonização que ocorre em praias arenosas temperadas? ResumoEsse estudo avaliou a influência da espécie Scolelepis squamata (Polychaeta) no processo de colonização de sedimentos defaunados obtidos em uma praia arenosa tropical, além de comparar esses resultados com um estudo similar realizado em uma praia temperada. Sedimentos, previamente defaunados, foram colocados em amostradores com aberturas laterais, que permitiram a colonização da meiofauna. Foram definidos dois tratamentos, um com a presença e outro com a ausência da espécie S. squamata, além do controle. Os amostradores desses tratamentos foram alocados em unidades experimentais do tipo microcosmo, as quais continham sedimento com a meiofauna residente. Os tratamentos foram incubados em laboratório por 7, 14 e 21 dias, com condições controladas de temperatura e salinidade. Os nematódeos não apresentaram diferenças significativas em termos de composição entre os tratamentos e nem em relação ao controle, sugerindo que todas as espécies desse grupo foram, igualmente, capazes de colonizar as unidades experimentais. Esses resultados indicaram que a presença do poliqueto não afetou a estrutura da comunidade de nematódeos, o que representou um resultado contrário ao obtido para a praia temperada. No entanto, não se pode concluir se essas diferenças entre as praias estariam relacionadas ao comportamento diferencial de S. squamata ou pela presença de comunidades de nematódeos distintas nas praias.Palavras-chave: meiofauna, Scolelepis squamata, Praia da Fazenda, experimento de microcosmo, interações b...

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“…Indeed, Scolelepis sp. feed predominantly on suspended particles within the intertidal zone but may opportunistically change to a deposit-feeding strategy under still environmental conditions (Pardo & Amaral 2004). Regardless the feeding behavior, S. gaucha may utilize that abundant offer of suspended and/or deposited diatoms (mainly Asterionellopsis glacialis) for nourishment, linking such primary production to higher trophic levels and thus playing an important role in sandy beach ecosystem functioning (Speybroeck et al 2007).…”

Section: Mesolittoral Zonementioning

confidence: 99%

A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil

et al. 2014

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PINOTTI, R.M., MINASI, D.M., COLLING, L.A., BEMVENUTI, C.E. A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil.http://dx.doi.org/10.1590/1676-06032014006914Abstract: Main trophic relationships that occur along the exposed sandy shores in southernmost Brazil (,336 S) are established taking into account several biological compartments operating at morphodynamically distinct environments. Beaches are predominantly of the intermediate type but some stretches of coastline are truly dissipative (Cassino Beach) or tending-to-reflective (Concheiros Beach), presenting thus diverse biological compartments and inhabitant macrobenthic assemblages. Dense concentrations of the surf-zone diatom Asterionellopsis glacialis are responsible -at least for the intermediate shorelines -for the most year-round primary production, sustaining several consumers up to tertiary level. Among them, bivalves Amarilladesma mactroides, Donax hanleyanus and the hippid crab Emerita brasiliensis can account for more than 95% of all the surf-zone secondary production, in addition to the elevated biomass of the suspension-feeder polychaete Spio gaucha and the scavenger isopod Excirolana armata. Crabs, whelks, carnivorous polychaetes, seabirds and surf-zone fishes may also be present and occupy superior trophic levels depending on the beach morphodynamics. Based on the high species richness, abundance and the role of macrobenthic fauna in transferring matter and energy to seabirds and the surf-zone fish assemblages, we address this important issue on the Southwestern Atlantic ecology. Conservation efforts should be implemented for the southernmost Brazilian sandy shores, at least for those non urbanized areas. Keywords: exposed beach, intermediate states, primary production, secondary consumers, conservation.PINOTTI, R.M., MINASI, D.M., COLLING, L.A., BEMVENUTI, C.E. Revisão sobre as relações tróficas macrozoobentônicas ao longo da costa arenosa subtropical do extremo sul do Brasil. Biota http://dx.doi.org/10.1590/1676-06032014006914Resumo: As principais relaçõ es tró ficas observadas ao longo da costa arenosa exposta do extremo sul do Brasil (,336 S) sã o estabelecidas levando-se em consideraçã o os vá rios compartimentos bioló gicos que operam em ambientes morfodinamicamente distintos. Estas praias sã o predominantemente do tipo intermediá rio, embora alguns trechos sejam dissipativos (Praia do Cassino) ou apresentem tendências reflectivas (Praia dos Concheiros), possuindo compartimentos bioló gicos diversificados e associaçõ es macrobentô nicas residentes. Densas concentraçõ es da diatomá cea Asterionellopsis glacialis sã o responsá veis -pelo menos para as praias intermediá rias -por grande parte da produtividade primá ria anual, sustentando vá rios consumidores até o nível terciá rio. Entre estes, os bivalves Amarilladesma mactroides, Donax hanleyanus e o crustá ceo Emerita brasiliensis sã o responsá veis por mais de 95% de toda a produçã o secundá ria da zona de surfe, em adição à elevada biomas...

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Feeding behavior of Scolelepis sp. (Polychaeta: Spionidae)

Cited by 23 publications

References 12 publications

Spatial distribution of intertidal sandy beach polychaeta along an estuarine and morphodynamic gradient in an eutrophic tropical bay

Spatial distribution of intertidal sandy beach polychaeta along an estuarine and morphodynamic gradient in an eutrophic tropical bay

Is nematode colonisation in the presence of Scolelepis in tropical sandy-beach sediment similar to the colonisation process in temperate sandy beaches?

A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil

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