JOURNAL OF PLANKTON RESEARCH | VOLUME 7 | NUMBER 4 | PAGES 581-594 | 1985
© Oxford University Press
research-article |
Adaptation and niche breadth of phytoplankton species along a nutrient gradient in the ocean
Woods Hole Oceanographic Institution Woods Hole, MA 02543, USA
Received on November 1, 1984; accepted on April 1, 1985 In the phytoplankton of the western North Atlantic, species are considered adapted to impoverished nutrient availability if they respond best to such conditions, and are considered unadapted only if they do not respond. The same holds for improved nutrient availability. Further, if species adapted to impoverished nutrient availability are broader niched, then narrower niched species are adapted only to improved nutrient availability. Thus two kinds of species are described: (i) adapted-to-impoverished-nutrient, broader niched species; (ii) adapted-to-improved-nutrient, narrower niched species.