Heart Rhythm of the Ocean Quahog Arctica Islandica

Abstract

Abstract. We studied the cardiac activity of the ocean quahog (Arctica islandica) and identified the precise point on the mollusc’s shell at which the heart rate can be successfully monitored remotely. The heartbeat pattern was markedly unstable. Moreover, irregular cardiac arrests were observed in every monitored mollusc.


Keywords: Arctica islandica, cardiac activity, heart rate

References
[1] Depledge MH, Andersen BB. A computer-aided physiological monitoring system for continuous, long-term recording of cardiac activity in selected invertebrates. Comparative Biochemistry and Physiology. 1990;96:474-477.
[2] Fedotov VP, Kholodkevich SV, Strochilo AG. Study of contractile activity of the crayfish heart with the aid of a new non-invasive technique. Journal of Evolutionary Biochemistry and Physiology. 2000;36:219-222.
[3] Marshall DJ, McQuaid CD. Differential physiological and behavioural responses of the intertidal mussels, Choromytilus meridionalis (Kr.) and Perna perna L., to exposure to hypoxia and air: A basis for spatial separation. Journal of Experimental Marine Biology and Ecology. 1993;171:225-237.
[4] Curtis TM, Williamson R, Depledge MH. Simultaneous, long-term monitoring of valve and cardiac activity in the blue mussel Mytilus edulis exposed to copper. Marine Biology. 2000;136:0837-0846.
[5] De Pirro M, Chelazzi G, Borghini F, Focardi S. Variation in cardiac activity following acute exposure to copper in three co-occurred but differently zoned Mediterranean limpets. Marine Pollution Bulletin. 2001;42:1390-1396.
[6] Bakhmet IN, Sazhin A, Maximovich N, Ekimov D. In situ long-term monitoring of cardiac activity of two bivalve species from the White Sea, the blue mussel Mytilus edulis and horse mussel Modiolus modiolus. Journal of the Marine Biological Association of the United Kingdom. 2019;99:833-840.
[7] Bakhmet I, Nikolaev K, Levakin I. Effect of infection with Metacercariae of Himasthla elongata (Trematoda: Echinostomatidae) on cardiac activity and growth rate in blue mussels (Mytilus edulis) in situ. Journal of Sea Research. 2017;123:51–54.
[8] Begum S, Basova L, Heilmayer O, Philipp E, Abelle D, Brey T. Growth and energy budget models of the bivalve Arctica islandica at six different sites in the Northeast Atlantic realm. Journal Shellfish Research. 2010;29:107–115. [9] Taylor AC. Burrowing behaviour and anaerobiosis in the bivalve Arctica islandica (L.). Journal of the Marine Biological Association of the United Kingdom. 1976;56:95-109.
[10] Widdows J. Energy transformations in cells and organisms. Wieser W, Gnaiger E, editors. Stuttgart: Georg Thieme; 1989. Calorimetric and energetic studies of marine bivalves; p. 145-154.
[11] Strahl J, Abele D. Cell turnover in tissues of the long-lived ocean quahog Arctica islandica and the short-lived scallop Aequipecten opercularis. Marine Biology. 2010;157:1283–1292.