Downloaded from Brill.Com10/06/2021 11:23:13AM Via Free Access BIJDRAGEN TOT DE DIERKUNDE, 43 (2) - 1973 161
Notes on some euryhaline gammarids (Crustacea, Amphipoda) from the west-coast of Norway by Henk G. Dennert Institute of Taxonomie Zoology, University of Amsterdam, The Netherlands Abstract 1852, Gammarus oceanicus Segerstrâle, 1947, Gammarus zaddachi Sexton, 1912, Gammarus fin- and Some data on the distribution in Norway on the marchicus Dahl, 1938, and Chaetogammarus ma- ecology of the euryhaline amphipods Gammarus duebe- rinus will be used in ni duebeni, G. oceanicus, G. zaddachi, G. finmarchicus (Leach, 1815) were found, and Chaetogammarus marinus are presented in this comparing the four biotopes. In the investigated paper. biotopes these five species were most abundant. Morphological differences between populations of G. Other as Gammarus salinus discussed. euryhaline gammarids, oceanicus are briefly Spooner, 1947, Gammarus setosus Dementieva, 1931, Chaetogammarus stoerensis (Reid, 1938) and obtusatus (Dahl, together I. INTRODUCTION Eulimnogammarus 1938), with number the a of other species belonging to Gammaridae and Talitridae, were found at several Relatively little is known about distribution and of the visited localities. ecology of members of the family Gammaridae in An extensive study of the limnicwaterbodiesand Norway. Records concerning the biology and distri- rivers in Norway was not made, since 0kland (1969 bution of the genera Gammarus, Chaetogammarus, & in detail about this In all of a b) reported subject. and Eulimnogammarus are found in the papers inland waters, Gammarus lacustris Sars, 1863, is Oldevig (1933 & 1959), Stephensen (1935-1942, the main Dahl representative. with a synopsis of the then known literature), At some inland localities Gammarus duebeni is (1938, 1946 & 1952), Sexton & Spooner (1940), found, but in a following it will be shown Sexton (1942), Schellenberg (1942), Segerstrâle paper that these localities have a mixohaline na- (1947, 1948 & 1959), Spooner (1951), Steen (1951), always and the found there is the brack - J.
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