Influence of abiotic factors on the structure of the population of the brown alga Fucus vesiculosus in East Murman (Barents Sea)

Influence of abiotic factors on the structure of the population of the brown alga Fucus... The peculiarities of the structure of the population of the brown alga Fucus vesiculosus in East Murman at different combinations of abiotic factors were studied. Salinity below 10‰ and high surf activity reduced the average life span of the plants (to 1 year) and caused a significant predominance of female specimens (60–90% of the fertile specimens). The proportion of female specimens increased with age. The greatest average age (3 branchings) and the highest survival of F. vesiculosus occurred in the wave-protected parts of bays. The distribution of F. vesiculosus was related to water movement intensity, salinity, and substrate type. The size-weight characteristics of F. vesiculosus thalli were decreased during maximum salinity fluctuations. The optimal conditions for this species were those existing on a weakly protected shore with short-term fluctuations of salinity (24–25‰). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Influence of abiotic factors on the structure of the population of the brown alga Fucus vesiculosus in East Murman (Barents Sea)

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Publisher
Springer Journals
Copyright
Copyright © 2009 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074009020047
Publisher site
See Article on Publisher Site

Abstract

The peculiarities of the structure of the population of the brown alga Fucus vesiculosus in East Murman at different combinations of abiotic factors were studied. Salinity below 10‰ and high surf activity reduced the average life span of the plants (to 1 year) and caused a significant predominance of female specimens (60–90% of the fertile specimens). The proportion of female specimens increased with age. The greatest average age (3 branchings) and the highest survival of F. vesiculosus occurred in the wave-protected parts of bays. The distribution of F. vesiculosus was related to water movement intensity, salinity, and substrate type. The size-weight characteristics of F. vesiculosus thalli were decreased during maximum salinity fluctuations. The optimal conditions for this species were those existing on a weakly protected shore with short-term fluctuations of salinity (24–25‰).

Journal

Russian Journal of Marine BiologySpringer Journals

Published: May 10, 2009

References

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