Seasonal and temperature effects on osmoregulation by the invasive prawnPalaemon elegansRathke, 1837 in the Baltic Sea

Body size and reproductive traits of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a recent colonizer of the Baltic Sea

“…This feature, along with a considerable flexibility and opportunistic feeding in adults (Janas and Barańska 2008) and high tolerance of environmental factors like temperature and salinity (Janas and Spicer 2010), has enabled this species to colonize the coastal waters of the southern Baltic rapidly on a very large scale. Year-on-year studies carried out in VL have shown that the density of these animals, initially not very great (2005), has increased substantially (Ezhova 2009, Janas andBruska 2010).…”

“…Low salinities in combination with extreme temperatures can also adversely affect prawns. It has been demonstrated that adults of P. elegans from the Baltic Sea are good hyperosmoregulators in brackish waters (Janas and Spicer 2010), but also that the osmoregulatory ability weakens at salinities <3 PSU at high (22°C) and low temperatures (2ºC) (Janas and Spicer 2010, Piłka et al in prep). Low salinity was cited as the main reason for the smaller size of Crangon crangon in its Baltic Sea populations (Muus 1967) and of bivalves such as Mya arenaria and Mytilus edulis (Robertson 1989, Kautsky andTendengren 1992).…”

Body size and reproductive traits of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a recent colonizer of the Baltic Sea

“…This feature, along with a considerable flexibility and opportunistic feeding in adults (Janas and Barańska 2008) and high tolerance of environmental factors like temperature and salinity (Janas and Spicer 2010), has enabled this species to colonize the coastal waters of the southern Baltic rapidly on a very large scale. Year-on-year studies carried out in VL have shown that the density of these animals, initially not very great (2005), has increased substantially (Ezhova 2009, Janas andBruska 2010).…”

“…Low salinities in combination with extreme temperatures can also adversely affect prawns. It has been demonstrated that adults of P. elegans from the Baltic Sea are good hyperosmoregulators in brackish waters (Janas and Spicer 2010), but also that the osmoregulatory ability weakens at salinities <3 PSU at high (22°C) and low temperatures (2ºC) (Janas and Spicer 2010, Piłka et al in prep). Low salinity was cited as the main reason for the smaller size of Crangon crangon in its Baltic Sea populations (Muus 1967) and of bivalves such as Mya arenaria and Mytilus edulis (Robertson 1989, Kautsky andTendengren 1992).…”

Body size and reproductive traits of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a recent colonizer of the Baltic Sea

“…This feature, along with a considerable flexibility and opportunistic feeding in adults (Janas and Barańska 2008) and high tolerance of environmental factors like temperature and salinity (Janas and Spicer 2010), has enabled this species to colonize the coastal waters of the southern Baltic rapidly on a very large scale. Year-on-year studies carried out in VL have shown that the density of these animals, initially not very great (2005), has increased substantially (Ezhova 2009, Janas andBruska 2010).…”

“…Low salinities in combination with extreme temperatures can also adversely affect prawns. It has been demonstrated that adults of P. elegans from the Baltic Sea are good hyperosmoregulators in brackish waters (Janas and Spicer 2010), but also that the osmoregulatory ability weakens at salinities <3 PSU at high (22°C) and low temperatures (2ºC) (Janas and Spicer 2010, Piłka et al in prep). Low salinity was cited as the main reason for the smaller size of Crangon crangon in its Baltic Sea populations (Muus 1967) and of bivalves such as Mya arenaria and Mytilus edulis (Robertson 1989, Kautsky andTendengren 1992).…”

Body size and reproductive traits of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a recent colonizer of the Baltic Sea

“…This feature, along with a considerable flexibility and opportunistic feeding in adults (Janas and Barańska 2008) and high tolerance of environmental factors like temperature and salinity (Janas and Spicer 2010), has enabled this species to colonize the coastal waters of the southern Baltic rapidly on a very large scale. Year-on-year studies carried out in VL have shown that the density of these animals, initially not very great (2005), has increased substantially (Ezhova 2009, Janas andBruska 2010).…”

“…Low salinities in combination with extreme temperatures can also adversely affect prawns. It has been demonstrated that adults of P. elegans from the Baltic Sea are good hyperosmoregulators in brackish waters (Janas and Spicer 2010), but also that the osmoregulatory ability weakens at salinities <3 PSU at high (22°C) and low temperatures (2ºC) (Janas and Spicer 2010, Piłka et al in prep). Low salinity was cited as the main reason for the smaller size of Crangon crangon in its Baltic Sea populations (Muus 1967) and of bivalves such as Mya arenaria and Mytilus edulis (Robertson 1989, Kautsky andTendengren 1992).…”