The tellinid Macoma balthica moves extensively about the surface of the sand, its activities not being restricted to vertical movements as hitherto supposed. These horizontal migrations comprise a movement towards the sun followed by a movement away from it. If there is heavy cloud movements still occur, in summer at least, but are at random.

Oertzen (1969) reported that Limecola balthica (as Macoma balthica) could tolerate temperatures up to 49°C before thermal numbing of gill cilia occurred presumably resulting in death. Ratcliffe et al. (1981) reported that Limecola balthica from the Humber Estuary, UK, tolerated 6 hours of exposure to temperatures up to 37.5°C with no mortality.

The density of harpacticoid copepods was lowest (P <0.05) in microcosms containing a high density of M. balthica. Feeding behavior of Macoma balthica is influenced in the Neuse River estuary by both hydrodynamics and siphon-cropping by juvenile demersal fishes. Under conditions of identical concentrations of suspended particulates in the water column and organic contents of surface sediments, Macoma exhibited much higher levels of deposit feeding where currents were slower. Limecola balthica is an infaunal bivalve, living buried in the mud or silt, and extending its two narrow siphons to the bottom surface. Through the siphons, it feeds on organic matter on the sediment surface or in the water.

Macoma balthica feeding

It ingests 12% (by weight) of the sediment and releases the remainder as a loose plume of pseudofeces. The ingested sediment is returned to the tidal flat surface within 3 - 6 h as compact fecal pellets. These pellets behave like fine sand grains. experimental aggregates of the deposit-feeding bivalve Macoma balthica* Karsten Reise Biologische Anstalt Helgoland, Litoralstation, D-2282 List. Federal Republic of Germany In this paper an analysis is made of subtle behavioural differences between adult male and female Ovstercatchers feeding on Macoma balthica under field conditions and in captivity. Macoma is a tellinid bivalve that in the Dutch Wadden Sea is mainly preyed upon during spring and summer when it is buried at a shallow depth.

changes in feeding mode of Macoma balthica F. Rossi,1 P. M. J. Herman, and J. J. Middelburg Netherlands Institute of Ecology (NIOO-KNAW), Korringaweg 7, 4401 NT Yerseke, the Netherlands Abstract Deposit and suspension feeders can switch feeding behavior and show variations in feeding mode as individuals pass through life-cycle stages.

Feeding niche preference of the mudsnail Peringia ulvae. av A WIKSTRÖM · Citerat av 2 — vattenmassan och bland annat uppfattar Östersjömussla (Macoma balthica) vibra- feeding in Amphiura filiformis (Echinodermata: Ophiuroidea): feeding Feeding behavior and diet of Corophium volutator in an estuary in southeastern England.

Effects of suspended food availability on the feeding mode and burial depth of the Baltic clam, Macoma balthica Junda Lin and Anson H. Hines Lin, J and Hines, A. H. 1994. Effects of suspended food availability on the feeding mode and burial depth of the Baltic clam, Macoma balthica. - Oikos 69: 28-36.

elegans are assumed to affect community structure by interactions with other species. The weight of tubes ofP. elegans varied between 2 and 13 g DW/100 cm2 at the two stations changes in feeding mode of Macoma balthica F. Rossi,1 P. M. J. Herman, and J. J. Middelburg Netherlands Institute of Ecology (NIOO-KNAW), Korringaweg 7, 4401 NT Yerseke, the Netherlands Abstract Deposit and suspension feeders can switch feeding behavior and show variations in feeding mode as individuals pass through life-cycle stages. Deposit and suspension feeders can switch feeding behavior and show variations in feeding mode as individuals pass through life‐cycle stages. Stable carbon and nitrogen isotopes were used to trace changes in diet of the tellinid bivalves M. balthica (facultative deposit feeder) and C. edule (obligatory suspension feeder), according to their size class.

Medium-sized Macoma balthica is the best con~promise available in the 6-species mix. INTRODUCTION Worms, crabs … Limited information is currently available on metal ENP effects, uptake, and depuration kinetics in aquatic organisms. In the present study, a deposit-feeding clam, Macoma balthica, was exposed to sediment spiked with Ag and Cu in different forms (aqueous ions, nanoparticles, and micrometer-sized particles) in three experiments.
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In the course of the summer an increasing mortality occurred amongst Deposit and suspension feeders can switch feeding behavior and show variations in feeding mode as individuals pass through life-cycle stages. Stable carbon and nitrogen isotopes were used to trace changes in diet of the tellinid bivalves M. balthica (facultative deposit feeder) and C. edule (obligatory suspension feeder), according to their size class. Macoma balthica ‘balthica’, in the Baltic Sea and White Sea, has relatively many red shells (Väinölä & Varvio, 1989; Strelkov et al., 2001; Sokolowski et al., 2002).

Macoma balthica ‘balthica’, in the Baltic Sea and White Sea, has relatively many red shells (Väinölä & Varvio, 1989; Strelkov et al., 2001; Sokolowski et al., 2002). Highest frequencies of yellow shells are found in northeastern Atlantic Macoma (Beukema & Meehan, 1985), ironically called M. balthica ‘rubra’ (ruber is Latin for red). Limited information is currently available on metal ENP effects, uptake, and depuration kinetics in aquatic organisms.
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experimental aggregates of the deposit-feeding bivalve Macoma balthica* Karsten Reise Biologische Anstalt Helgoland, Litoralstation, D-2282 List. Federal Republic of Germany

I systemet ingår havsborstmask, Macoma balthica (nuv. Limecola balthica) – östersjömussla Selecting for three copepods – feeding of sprat and herring in the Baltic Sea. Macoma balthica during short-term laboratory exposure.

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Macoma balthica (Linnaeus, 1758). AphiaID. 141579 (urn:lsid:marinespecies.org :taxname:

DEPOSIT-FEEDING POPULATIONS OF THE BIVALVE MACOMA BALTHICA: A FIELD EXPERIMENT BY E. B. OLAFSSON Department of Animal Ecology, University of Lund, S-223 62 Lund, Sweden SUMMARY (1) Levinton's hypothesis that populations in deposit-feeding communities are more often food-limited than those in filter-feeding communities was field tested using exclusion 1994-11-03 Feeding Macoma balthica in NIOZ aquarium 1993-04-01 Macoma balthica, Baltic clam, a small marine bivalve mollusk, is the main food source of the long distant migratory shorebird species red knot in the Wadden Sea, Iceland, Northern Norway and other spring staging (refueling) areas. Rapid feeding of 1 - 2 cm specimen of Macoma balthica enables knots to build major fat reserves for their thousands of kilometers non-stop flight to the Arctic Effects of suspended food availability on the feeding mode and burial depth of the Baltic clam, Macoma balthica Junda Lin and Anson H. Hines Lin, J and Hines, A. H. 1994. Effects of suspended food availability on the feeding mode and burial depth of the Baltic clam, Macoma balthica. - Oikos 69: 28-36. Macoma balthica is not normally considered to be toxic but may transfer toxicants through the food chain to predators.