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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [200338]

Salinity-related growth rates in populations of the European clam Macoma balthica and in field transplant experiments along the Baltic Sea salinity gradient Jansen, J.M.; Koutstaal, A.; Bonga, S.W.; Hummel, H. (2009). Salinity-related growth rates in populations of the European clam Macoma balthica and in field transplant experiments along the Baltic Sea salinity gradient. Mar. Freshw. Behav. Physiol. 42(3): 157-166. http://dx.doi.org/10.1080/10236240902904348 In: Marine and Freshwater Behaviour and Physiology. Gordon and Breach: Basel. ISSN 1023-6244; e-ISSN 1029-0362, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 258917 [ aanvragen ]

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Trefwoorden

Biodiversity Biology > Physiology > Ecophysiology Distribution > Geographical distribution Growth rate Properties > Biological properties > Tolerance > Salinity tolerance Macoma balthica (Linnaeus, 1758) [WoRMS] Marien/Kust

Author keywords

geographic range; macrophysiology; salinity tolerance; bivalve; Macoma balthica; condition; diversity; translocation

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Auteurs		Top
Jansen, J.M. Koutstaal, A. Bonga, S.W. Hummel, H., meer

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Abstract

Most benthic invertebrates and plant species that survive in the brackish Baltic Sea are characterized by populations in which growth is reduced and genetic diversity is low, indicating that these species live under marginal conditions. In this study, we tested for a salinity-related growth rate reduction in 21 European Macoma balthica populations. Additionally, we transplanted clams into hyposaline environments, along the Baltic Sea salinity gradient, and compared survival, growth and condition with control groups. All transplants into hypoosmotic environments were successful. Despite the osmotic shock, the results showed no reduced growth rates in transplanted individuals. Only the clams that had been transplanted into the extremely oligohaline Gulf of Bothnia (0.5-3.0 PSU) exhibited reduced growth rates in comparison to the control group. From this study we conclude that M. balthica has an exceptional capacity to acclimatize to extremely brackish conditions, which may explain its abundance and diversity in the Baltic Sea.

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