Effect of salinity-changing rates on filtration activity of mussels from two sites within the Baltic Mytilus hybrid zone: The Brackish Great Belt (Denmark) and the Low Saline Central Baltic Sea
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In: Open Journal of Marine Science, Vol. 4, No. 2, 44574, 01.01.2014, p. 101-109.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Effect of salinity-changing rates on filtration activity of mussels from two sites within the Baltic Mytilus hybrid zone
T2 - The Brackish Great Belt (Denmark) and the Low Saline Central Baltic Sea
AU - Riisgard, Hans Ulrik
AU - Mulot, Magali
AU - Merino, Lucia
AU - Pleißner, Daniel
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Mussels from two sites within the Baltic mussel (Mytilus edulis × M. trossulus) hybrid zone were used in a comparative study on the effects of salinity-changing rates on filtration activity. The acute effect of varying salinity-changing rates was found to be similar in M. edulis from the brackish Great Belt and in M. trossulus from the low saline Central Baltic Sea, and the relationships could be described by linear regression lines through 0.0 indicating that the acute effect of deteriorating conditions at decreasing salinities is the opposite as for improving conditions when the salinity is subsequently increased. Further, both M. edulis and M. trossulus acclimatized to 20 psu reacted to an acute salinity change to 6.5 psu by immediately closing their valves whereupon the filtration rate gradually increased during the following days, but only M. trossulus had completely acclimatized to 6.5 psu within 5 days which may be explained by different genotypes of M. edulis and M. trossulus which probably reflected an evolutionary adaptation of the latter to survive in the stable low-salinity Baltic Sea.
AB - Mussels from two sites within the Baltic mussel (Mytilus edulis × M. trossulus) hybrid zone were used in a comparative study on the effects of salinity-changing rates on filtration activity. The acute effect of varying salinity-changing rates was found to be similar in M. edulis from the brackish Great Belt and in M. trossulus from the low saline Central Baltic Sea, and the relationships could be described by linear regression lines through 0.0 indicating that the acute effect of deteriorating conditions at decreasing salinities is the opposite as for improving conditions when the salinity is subsequently increased. Further, both M. edulis and M. trossulus acclimatized to 20 psu reacted to an acute salinity change to 6.5 psu by immediately closing their valves whereupon the filtration rate gradually increased during the following days, but only M. trossulus had completely acclimatized to 6.5 psu within 5 days which may be explained by different genotypes of M. edulis and M. trossulus which probably reflected an evolutionary adaptation of the latter to survive in the stable low-salinity Baltic Sea.
KW - Biology
KW - Blue Mussels
KW - Mytilus edulis
KW - mytilus trossulus
KW - acute salinity effects
UR - https://www.mendeley.com/catalogue/a6cdaeff-1710-3d51-b208-ada1b3906790/
U2 - 10.4236/ojms.2014.42011
DO - 10.4236/ojms.2014.42011
M3 - Journal articles
VL - 4
SP - 101
EP - 109
JO - Open Journal of Marine Science
JF - Open Journal of Marine Science
SN - 2161-7384
IS - 2
M1 - 44574
ER -