Thermal ecotypes of amphi-Atlantic algae. 1. Algae ...
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| Title | Thermal ecotypes of amphi-Atlantic algae. 1. Algae of Arctic to cold-temperate distribution (Chaetomorpha melagonium, Devaleraea ramentacea and Phycodrys rubens ) |
| Author(s) | I. Novaczek, G. Lubbers, A. Breeman |
| Journal | Helgolander Meeresuntersuchungen.Hamburg |
| Date | 1990 |
| Volume | 44 |
| Issue | 3-4 |
| Start page | 459 |
| End page | 474 |
| Abstract | Three species of Arctic to cold-temperate amphi-Atlantic algae, all occurring also in the North Pacific, were tested for growth and/or survival at temperatures of -20 to 30 degree C. When isolates from both western and eastern Atlantic shores were tested side-by-side, it was found that thermal ecotypes may occur in such Arctic algae. Chaetomorpha melagonium was the most eurythermal of the 3 species. Isolates of this alga were alike in temperature tolerance and growth rate but Icelandic plants were more sensitive to the lethal temperature of 25 degree C than were more southerly isolates from both east and west. With regard to Devaleraea ramentacea , one Canadian isolate grew extraordinarily well at -2 and 0 degree C, and all tolerated temperatures 2-3 degree C higher than the lethal limit (18-20 degree C) of isolates from Europe. Concerning Phycodrys rubens , both eastern and western isolates died at 20 degree C. |
| ISSN | 0174-3597 |
Using APA 6th Edition citation style.
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