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Feeding activities of the clams were observed for about ten minutes at irregular intervals for 22 times during the experiment. The number of M. balthica exhibiting de-posit or suspension feeding behavior was recorded. Bu-rial depths of M. balthica were measured every three to four days until the clams' burial depth became stable.

▫ Macoma nasuta. ▫ Macoma torelli. ▫ Macoma brota. ▫ Macoma loveni. ▫ Macoma balthica [objective synonym].

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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. AB - 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. males lift Macoma more, whereas females handle them mostly in situ. Macoma balthica (L.) is a common clam of the estuarine seafloor, belonging to an important group of invertebrates possessing the capacity to choose between the two fundamental modes of feeding available, using its siphon to inhale either suspended food particles from the water or food particles deposited on the sediment surface.

SEM observations showed that exposure to barite caused cilia to shorten and coagulate, and, in some extreme cases, cause the disintegration of the gill structure itself. switch from feeding on baltic tellin macoma balthica to feeding on the ragworm nereis diversicolor during the breeding season? arjo (e.j.) bunskoekei, brunoj.

21 Jul 1995 driving distribution of a dominant infaunal clam, Macoma balthica, changing the feeding mode of M. balthica from deposit to suspension.

AU - Bunskoeke, Arjo (E.J.) AU - Ens, Bruno J. AU - Hulscher, Jan B. AU - DeVlas, SJ. PY - 1996. 1980-01-01 The facultative deposit-feeding clam Macoma balthica is used as a bioindicator organism for assessing coastal metal contamination. Previous work has evaluated the assimilation of metals from different possible food sources for this clam, but no studies have measured the uptake rates of metals from different dissolved sources.

Macoma balthica feeding

Tellina balthica L. — allmän i rännan mellan Högholmen och Saltö n. om Lysekil, i Kvarnviken, Kölvik, Lervik, Macoma calcai'ea 57. must have its cause in a different mode of life, and most probably in different food and feeding habits.

Macoma are generally more rounded and more inflated than Tellina; Macoma are smooth The feeding radius of M. balthica and S. plana is a linear function of shell size. S. plana use half of their siphon length to feed on the surface and the other half to bury themselves, but if the siphon weight is below average, the proportion extended over the surface decreases with siphon size. 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.

Large specimens are infected to a larger percentage than small ones.
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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. males lift Macoma more, whereas females handle them mostly in situ.

INTRODUCTION Worms, crabs and shrimps are the most important Macoma balthica is een eurylialiene soort (van zeewater tot 2.7%o S), zij liet dat bij te lage zoutgelialtes de groei en liet voorlKulturskolan halmstad

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The facultative deposit-feeding clam Macoma balthica is used as a bioindicator organism for assessing coastal metal contamination. Previous work has evaluated the assimilation of metals from different possible food sources for this clam, but no studies have measured the uptake rates of metals from different dissolved sources.

Waste and unused water are ejected through the other siphon. Predators. Macoma clams’ long siphons look like worms crawling along the bottom.