ISSN 0003-455X
© Finnish Zoological and Botanical Publishing Board 1990

Contents of Volume 27 Number 3, 1990

Biology and ecology of glacial relict Crustacea
Nordic research conference 20–23 April 1988, Tvärminne Zoological Station, University of Helsinki, Finland

edited by Heikki Salemaa

Salemaa, H. & Heino, T. 1990: Chromosome numbers of Fennoscandian glacial relict Crustacea. — Annales Zoologici Fennici 27: 207–210.
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Väinölä, R. 1990: Molecular time scales for evolution in Mysis and Pontoporeia. — Annales Zoologici Fennici 27: 211–214.
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Väinölä, R. & Rockas, H. 1990:New distributional data on ‘glacial relict’ crustaceans. — Annales Zoologici Fennici 27: 215–220.
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Särkkä, J., Meriläinen, J. J. & Hynynen, J. 1990: The distribution of relict crustaceans in Finland: new observations and some problems and ideas concerning relicts. — Annales Zoologici Fennici 27: 221–225.
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Zmudzinski, L. 1990: Past and recent occurrence of Malacostraca glacial relicts in Polish lakes. — Annales Zoologici Fennici 27: 227–230.
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Köhn, J. 1990: The recent distribution of glacial relict Malacostraca in the western and southern Baltic. — Annales Zoologici Fennici 27: 231–235.
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Köhn, J. & Waterstraat, A. 1990: Recent distribution of glacial relict Malacostraca in the lakes of Mecklenburg. — Annales Zoologici Fennici 27: 237–240.
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Hill, C., Furst, M. & Hammar, J. 1990: Introduction of the amphipods Pallasea quadrispinosa and Gammaracanthus lacustris into lakes in northern Sweden. — Annales Zoologici Fennici 27: 241–244.
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Aura, R.-L., Valtonen, E. T. & Andersin, A.-B. 1990: On the acanthocephalan infection in some glacial relict crustaceans in Finland. — Annales Zoologici Fennici 27: 245.
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Astthorsson, O. S. 1990: Aspects of the biology of Mysis oculata on the west coast of Iceland. — Annales Zoologici Fennici 27: 247–251.
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Salemaa, H., Vuorinen, I. & Välipakka, P. 1990: The distribution and abundance of Mysis populations in the Baltic Sea. — Annales Zoologici Fennici 27: 253–257.
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Rudstam, L. G. & & Hansson, S. 1990: On the ecology of Mysis mixta (Crustacea, Mysidacea) in a coastal area of the northern Baltic proper. — Annales Zoologici Fennici 27: 259–263.
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Grönholm, L. & Hakala, I. 1990: Annual and diurnal vertical migrations and the food of Mysis relicta in Lake Pääjärvi, Southern Finland. — Annales Zoologici Fennici 27: 265.
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Kristoffersson, R. & Kuosa, P.-L. 1990: Studies on the ecological physiology of Saduria entomon. — Annales Zoologici Fennici 27: 267.
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Haahtela, I. 1990: What do Baltic studies tell us about the isopod Saduria entomon (L.)? — Annales Zoologici Fennici 27: 269–278.
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Sandberg, E. & Bonsdorff, E. 1990: On the structuring role of Saduria entomon (L.) on shallow water zoobenthos. — Annales Zoologici Fennici 27: 279–284.
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Leonardsson, K. 1990: Cannibalism as a population regulating mechanism in the brackish-water isopod Saduria entomon (L.). — Annales Zoologici Fennici 27: 285.
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Kivivuori, L. & Lagerspetz, K. Y. H. 1990: Thermal resistance and behaviour of the isopod Saduria entomon (L.). — Annales Zoologici Fennici 27: 287–290.
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Johnson, R. K. & Wiederholm, T. 1990: Long-term studies of profundal zoomacrobenthos in Sweden’s great lakes: implications of biotic interactions. — Annales Zoologici Fennici 27: 291–295.
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Uitto, A. & Sarvala, J. 1990: Perspectives on the ecological factors regulating Pontoporeia populations in the northern Baltic Sea. — Annales Zoologici Fennici 27: 297–301.
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Elmgren, R., Ankar, S. & Ejdung, G. 1990: Amphipods of the genus Pontoporeia as key elements in the Baltic benthos. — Annales Zoologici Fennici 27: 303–304.
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Lopez, G. & Elmgren, R. 1990: Feeding depths and organic absorption by Pontoporeia femorata and Pontoporeia affinis. — Annales Zoologici Fennici 27: 305.
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Cederwall, H. 1990: Diurnal pelagic swimming activity of Pontoporeia — a waste of energy? — Annales Zoologici Fennici 27: 307.
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Lindström, M. & Fortelius, W. 1990: Some factors affecting the horizontal migration of Pontoporeia affinis (Crustacea, Amphipoda) in laboratory conditions. — Annales Zoologici Fennici 27: 309–312.
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