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Advances in marine biology (volume 12)
- Date_TXT
- New York :Academic press , 1974
- Cote
- 578.77 RUS/T12
- Auteur
- Russell, F. S
- Type de document
- Livre
Description :
This volume begins with Ivan Good body's review - the first in this field - of work on the physiology of ascidians or sea squirts, among the commonest but, physiologically, one of the most obscure groups of marine animals. The second article - another first review in an almost completely neglected field - is by the late L. E. Mawdesley-Thomas and deals with pathological growths or neoplasia in marine animals from the few recorded in invertebrates to the more numerous cases in fish and marine mammals. It is hoped that this may stimulate further enquiry. Of recent year's shrimps, particularly the tropical penaeids, have become, economically, one of the most important groups of marine mammals. Makoto Omori here deals at length with all aspects of the biology of deep and mid-water shrimps, all of which constitute essential links in the economy of marine life. The processes of life are rhythmical and, in the last chapter, Alain Sournia cites instances of circadian periodicities in the populations of marine plant plankton, a matter of fundamental importance as this phytoplankton represents the great bulk of primary productivity in the sea.