The effects of reduced salinity on colonial growth and membership in a hydroid
In: Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981; e-ISSN 1879-1697, meer
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| Trefwoorden |
Anatomical structures > Body organs > Animal organs > Animal reproductive organs
Biological phenomena > Adaptations > Acclimatization
Colonies
Environmental effects > Salinity effects
Population functions > Growth
Marien/Kust |
| Abstract |
The effect of different salinity levels on colonial growth and gonozooid frequency of the hydroid Campunularis flexuosa Hincks has been studied. It is shown that the usual cumulative presentation of growth data tends to obscure evidence of acclimation and other features of importance to an interpretation of adaptations of the growth process to salinity changes. A method of analysis is described that not only demonstrates acclimation, but apparently shows how growth is controlled after disturbance by changes in salinity. One other response to reduced salinity and other unfavourable changes in water chemistry is an increase in gonozooid frequency due to the diversion of resources from the formation of new hydranths. |
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