Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 358935
Title Differential cold-shock resistance among acclimated European mussel populations
Author(s) Jansen, J.M.; Wendelaar Bonga, S.E.; Hummel, H.
Source Marine and Freshwater Behaviour And Physiology 40 (2007)4. - ISSN 1023-6244 - p. 233 - 245.
Department(s) Wageningen Marine Research
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) edulis pedal ganglia - mytilus-edulis - nitric-oxide - intertidal invertebrates - temperature-acclimation - thermal physiology - chill-coma - wadden sea - tolerance - galloprovincialis
Abstract To study differential cold-shock resistance of marine mussel populations (Mytilus spp.) from different climatic regions in Europe, we sampled 12 populations, ranging from 43 to 58°N. Minimum critical temperatures for aerobic metabolism (CTmin) were determined before and after 3 months of common acclimatization in an outdoor mesocosm. Additionally, chill coma in response to cold shock was used to test for differences in physiological plasticity between the translocated populations. The CTmin followed a steep cline, being positively related to the ambient temperatures before translocation (p <0.0001), and became similar between populations after 3 months in the outdoor mesocosms (p > 0.05). Differential chill coma responses separated the populations into two groups that were also geographically separated by the English Channel. The southern populations showed a much stronger and faster sensitivity to chill than the northern populations, indicating differential physiological adaptation between the two groups. The results are discussed in relation to the genetic background and climatic isolation of the populations.
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