caa a22 4500 386384657 CHVBK 20180307112054.0 cr unu---uuuuu 161130s1989 xx s 000 0 eng 10.1017/S0263593300028728 doi S0263593300028728 pii (NATIONALLICENCE)cambridge-10.1017/S0263593300028728 Physiology of Crustacea from difficult environments [Elektronische Daten] Examples of the mechanisms involved in body fluid regulation by present-day crustaceans inhabiting variable salinity habitats are described using amphipod gammarids and the isopod Mesidotea (Saduria) entomon as models. Appropriately the species inhabiting the most demanding habitats have the greatest range and most sophisticated regulatory responses. Behaviour, micromorphology and physiology are all involved to a variable degree and, in the examples discussed, responses to salinity change seem finely tuned to countering the problems generated by particular environments. This applies both in the rapid responses to sudden alteration in salinity and to the longer term changes associated with acclimation to a new steady state condition. The isolation of populations and features of derived freshwater races are considered and the implications for the presumed physiological mechanisms of fossil forms discussed. Copyright © Royal Society of Edinburgh 1989 Amphipoda nationallicence Crustacea nationallicence gill physiology nationallicence Isopoda nationallicence osmoregulation nationallicence permeability nationallicence physiological responses to salinity change nationallicence racial differences nationallicence Lockwood A. P. M. Department of Oceanography, University of Southampton, Southampton SO9 5NH, U.K. Bolt S. R. L. Department of Oceanography, University of Southampton, Southampton SO9 5NH, U.K. Transactions of the Royal Society of Edinburgh: Earth Sciences Royal Society of Edinburgh Scotland Foundation 80/3-4(1989), 285-292 0263-5933 80:3-4<285 1989 80 TRE https://doi.org/10.1017/S0263593300028728 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0263593300028728 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lockwood A. P. M. Department of Oceanography, University of Southampton, Southampton SO9 5NH, U.K NATIONALLICENCE 700 1- Bolt S. R. L. Department of Oceanography, University of Southampton, Southampton SO9 5NH, U.K NATIONALLICENCE 773 0- Transactions of the Royal Society of Edinburgh: Earth Sciences Royal Society of Edinburgh Scotland Foundation 80/3-4(1989), 285-292 0263-5933 80:3-4<285 1989 80 TRE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge