Haemolymph Concentration and Apparentpermeability in Varying Salinityconditions of Gammarus Duebeni, Chaetogammarus Marinus and Gammarus Locusta

Haemolymph Concentration and Apparent Permeability in Varying Salinity Conditions of Gammarus Duebeni, Chaetogammarus Marinus and Gammarus Locusta

Haemolymph and external medium sodium concentrations have been investigated in three euryhaline amphipods, Gammarus duebeni (Lilljeborg), Chaetogammarus marinus (Leach) and Gammarus locusta (Linnaeus). These were subjected to various salinity regimes, including sudden and cycling salinity changes. The apparent permeability to water of these three species was investigated in various salinity reg...

Soluble protein changes in pollution-adapted Gammarus duebeni.

The euryhaline amphipod Gummarus dueheni colonized the saline sewage treatment plant at Looe, Cornwall, in 1973 and has established a thriving population [I] . After full operation was started, the primary settlement tanks became too anoxic for amphipod survival, recruitment ceased and the population became confined to the filter beds and humus tanks. I t is from the latter that individuals are...

Glacial-driven vicariance in the amphipod Gammarus duebeni.

We have examined the genetic diversity using mitochondrial COI and ND2 sequence data from 306 specimens of the amphi-Atlantic-distributed amphipod Gammarus duebeni. Marine populations from the Atlantic Ocean, the Baltic and North Sea, as well as freshwater populations from Ireland, Cornwall and Brittany were analysed. G. duebeni is a complex of five allopatric lineages. Freshwater populations r...

Sodium influx and loss in freshwater and brackish-water populations of the amphipod Gammarus duebeni Lilljeborg.

Sodium Regulation in the Amphipod Gammarus Duebeni Lilljeborg from Freshwater Localities in Ireland

The detailed distribution of Gammarus duebeni in freshwater habitats is discussed by Hynes (1954) and Sutcliffe (1967a). It occurs in a number of isolated coastal localities situated on the western sea-boards of Britain, including the Isle of Man, and on the Shetlands, the Faroes, Iceland, Norway and Brittany. In most of these localities the amphipod is restricted to only a few of the streams a...