A study of feeding in <i>Scrobicularia plana</i>

Hughes, Roger N.

doi:10.1017/s0025315400037309

Cited by 206 publications

(126 citation statements)

References 19 publications

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“…Variability of the feeding methods between the deposit and filter feedings is also known in other estuarine macrobenthos such as spionid polychaetes (Taghon et al 1980, Taghon & Greene 1992, bivalves (Hughes 1969, Olafsson 1986, and a gastropod (Kamimura & Tsuchiya 2004).…”

Section: Discussionmentioning

confidence: 99%

Filter-feeding behavior of three Asian Hediste species (Polychaeta: Nereididae)

Toba

Sato

2013

Plankton Benthos Res

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Abstract:The three Hediste species H. japonica, H. diadroma and H. atoka (Polychaeta: Nereididae) live in burrows in estuarine intertidal flats in eastern Asia and have been regarded as surface deposit feeders. Their filter-feeding behavior was investigated in laboratory experiments where the worms were placed in a U-shaped glass tube. The behavior is basically the same among the three species and the same as that previously observed in H. diversicolor inhabiting Atlantic coasts and consists of the following four steps: (1) Moving up to the end of the tube; (2) retreating slowly down, with the anterior body expanded laterally and moving from side to side in semicircles, making a transparent, funnel-shaped mucous net; (3) orientation of the head at 2.5-6.0 cm below the end of the glass tube, and pumping water through the net by means of active undulating movements of the body for 1-5 min; (4) moving forward and swallowing the mucous net together with the trapped particles. This behavior is accelerated by adding organic particles to the seawater. Such facultative filter feeding is judged as a unique generic characteristic of Hediste among the Nereididae and its ecological significance is discussed in relation to their estuarine habitats.

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Section: Discussionmentioning

confidence: 99%

Filter-feeding behavior of three Asian Hediste species (Polychaeta: Nereididae)

Toba

Sato

2013

Plankton Benthos Res

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“…Diet information for almost all the compartments here identified had to be obtained from the literature (e.g. Hughes, 1969;Costa, 1982;Pihl, 1985;Zajac, 1986;Sprung, 1994;Ansell et al, 1999;Azeiteiro et al, 1999;Cunha et al, 2000;Pardal et al, 2000, see Appendix A). Initially, all prey items of each compartment of macrofauna and fishes were listed, along with their corresponding percentages of occurrence.…”

Section: Production Consumption and Diet Compositionmentioning

confidence: 99%

Mass balanced models of the food web in three areas along a gradient of eutrophication symptoms in the south arm of the Mondego estuary (Portugal)

Patrício

Marques

2006

Ecological Modelling

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EutrophicationTrophic structure a b s t r a c t Three Ecopath with Ecosim models were constructed to represent the eutrophication gradient along the south arm of the Mondego estuary (Portugal). Sampling was conducted in three areas representative of different environmental situations along the gradient: (a) a non-eutrophic area (Zostera noltii meadows), (b) an intermediate eutrophic area (macrophyte absent, although residual roots can still be found in the sediment, and the occasional formation of abundant macroalgae mats) and (c) a strongly eutrophic area (macrophyte community totally absent for at least a decade and strong, regularly occurring, blooms of Ulva spp.). Field, laboratory and literature information were used to construct the models, as well as empirical ecological knowledge gained from years of work on this system. Approximately 76 trophic groups (e.g. Phytoplankton and Zooplankton species), species and genera were included. These species were grouped into 43, 36 and 34 model groups for Zostera sp. meadows, intermediate eutrophic area and strongly eutrophic area, respectively. The groups were arranged by trophic similarity and habitat preferences; special distinction is given to macrofauna. Biomass, production, consumption, and diet are among the parameters used to describe each group. The sum of consumptions, exports, respiration, production, flow to detritus, total system throughput and annual rate of net primary production was always higher in the Zostera sp. meadows, followed by the strongly eutrophic area and, finally, by the intermediate eutrophic area.

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“…The present study evaluates the success of a restoration project implemented in the Mondego estuary, focussing on the dynamics of Scrobicularia plana, a long-lived deposit-feeding bivalve species, living in muddy to sandy sediments (Hughes, 1969(Hughes, , 1970aGuelorget and Mazoyer-Maye´re, 1983;Essink et al, 1991;Sola, 1997;Guerreiro, 1998). Long-term data sets (8 years) are required in order to capture slow ecological processes (e.g.…”

Section: Introductionmentioning

confidence: 99%

The effect of eutrophication abatement on the bivalve Scrobicularia plana

Verdelhos

Neto

Marques

et al. 2005

Estuarine, Coastal and Shelf Science

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Over the last few decades, the excessive growth of macroalgae and decline of seagrass beds, associated with increased eutrophication, has become a worldwide problem. It is known that submersed aquatic vegetation (SAV) offers stable habitats, allowing the continuous availability of food and protection against predators and contributing to biodiversity, sediment stability and water transparency when compared to areas covered by macroalgae mats. In the Mondego estuary (Portugal), several mitigation measures (nutrient-load reduction, seagrass-bed protection and freshwater-circulation enhancement) were implemented in 1998 in order to promote the recovery of the seagrass beds and the entire surrounding environment following a long period of eutrophication. Here the success of this restoration project is evaluated by comparing the water nutrient concentrations, the extent of seagrass cover and the dynamics of the bivalve Scrobicularia plana before and after the implementation of the management measures. During the period in which environmental quality declined, S. plana's adult abundance, total biomass and growth production also declined, parallel with the almost total disappearance of Zostera noltii. After the implementation of management measures, dissolved nutrients and green macroalgal blooms were much reduced, and seagrass beds started to recover. The S. plana population also responded positively, becoming more structured (including individuals of all age classes), with higher biomass and growth production.

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A study of feeding in Scrobicularia plana

Cited by 206 publications

References 19 publications

Filter-feeding behavior of three Asian Hediste species (Polychaeta: Nereididae)

Filter-feeding behavior of three Asian Hediste species (Polychaeta: Nereididae)

Mass balanced models of the food web in three areas along a gradient of eutrophication symptoms in the south arm of the Mondego estuary (Portugal)

The effect of eutrophication abatement on the bivalve Scrobicularia plana

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