Phytoplankton is a polyphyletic group of photosynthetic,oxygen producing protoctists and bacteria adapted topersist in suspension and liable to passive movement by wind and current (Reynolds,2006)[1].They inhabit almost all the aquatic ecosystems of the biosphere and show an enormously wide variability of shape,size,evolutionary and phylogenctic position,as well as energy and nutrient demands.Their amazing diversity in an apparently homogeneous medium,as the pelagic environment can be perceived at a first sight,caused concern a few decades ago and puzzled aquatic biologists for years.Actually, the contemporary occurrence of many species competing for the same few resources (apparently) violated the Competitive Exclusion Principles (Hutchinson,1961).
Phytoplankton is a polyphyletic group of photosynthetic,oxygen producing protoctists and bacteria adapted topersist in suspension and liable to passive movement by wind and current (Reynolds,2006)[1].They inhabit almost all the aquatic ecosystems of the biosphere and show an enormously wide variability of shape,size,evolutionary and phylogenctic position,as well as energy and nutrient demands.Their amazing diversity in an apparently homogeneous medium,as the pelagic environment can be perceived at a first sight,caused concern a few decades ago and puzzled aquatic biologists for years.Actually, the contemporary occurrence of many species competing for the same few resources (apparently) violated the Competitive Exclusion Principles (Hutchinson,1961).
Luigi Naselli-Flores. The role of shape and size in the ecology of phytoplankton[J]. , 2008, 27(5): 295-299.
Luigi Naselli-Flores. The role of shape and size in the ecology of phytoplankton. , 2008, 27(5): 295-299.
[1] Reynolds,C.S.(2006) Ecology of phytoplankton.Cambridge Univ.Press,Cambridge and New York.
[2] Hutchinson,G.E.(1961) The paradox of the plankton.American Naturalist 95,137-145.
[3] Naselli-Flores,L.(2003) Man-made lakes in Mediterranean semi-arid climate:the strange case of Dr Deep Lake and Mr Shallow Lake.Hydrobiologia 506-509,13-21.
[4] Padisak,J.(2003) Phytoplankton.In O'Sullivan,P.E.& Reynolds,C.S.(editors) The Lakes Handbook 1.Linmology and Limnetic Ecology:251-308.Blackwell Science Ltd.Oxford.
[5] Harris,G.P.(1986) phytoplankton ecology:structure,function and fluctuation Chapman and Hall,New York.
[6] Reynolds,C.S.(1984) The ecology of freshwater phytoplankton.Cambridge Univ.Press,Cambridge and New York.
[7] Reynolds,C.S.(1997) Vegetation processes in the pelagic.A Model for Ecosystem Theory.ECI,Oldendorf.
[8] Lewis,W.M.Surface/volume ratio:implication for phytoplankton morphology.Science 192,885-887.
[9] Margalef,R.(1978) Life forms of phytoplankton as survival alternatives in an unstable environment.Oceanologica Acta 1,493-509.
[10] Reynolds,C.S.,V.Huszar,C.Kruk,L.NaseUi-Flores & S.Melo (2002) Towards a functional classification of the freshwater phytoplankton.Journal of Plankton Research 24:417-428.
