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Botanica Marina

Editor-in-Chief: Dring, Matthew

6 Issues per year


IMPACT FACTOR 2015: 1.250

SCImago Journal Rank (SJR) 2015: 0.608
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ISSN
1437-4323
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Volume 46, Issue 2 (Mar 2003)

Issues

Reproductive Strategies of Ceramium tenuicorne Near Its Inner Limit in the Brackish Baltic Sea

L. Bergström / E. Bruno / B. Eklund / L. Kautsky
Published Online: 2005-06-01 | DOI: https://doi.org/10.1515/BOT.2003.013

Abstract

The reproductive state of Ceramium tenuicorne (Kütz.) WӦrn was studied in a salinity and latitudinal gradient near its inner distribution limit in the brackish Baltic Sea, and in laboratory growth experiments on the gametophytes and tetrasporophytes. Along the gradient, a strong reduction in sexual reproduction and an increased tetrasporophyte dominance were observed. The observed changes may not only be explained by salinity constraints. Growth occurred between 1 and 24 PSU and the optimum range for growth corresponded well to the salinity regime of the area studied. Field observations showed that sexual reproduction is at least occasionally possible in salinities around 4 PSU. It is likely that severed climatic conditions constrain sexual reproduction towards the north, but C. tenuicorne remains an ecologically dominant species in large parts of its distributional area. Viable populations are maintained essentially by vegetative reproduction, such as fragmentation and rhizoidal re-attachment. Observations on vegetative propagules were sparse, but these may serve as an important physical escape from temporarily unfavourable conditions in areas where sexual reproduction is unreliable.

About the article

Published Online: 2005-06-01

Published in Print: 2003-03-10


Citation Information: Botanica Marina, ISSN (Print) 0006-8055, DOI: https://doi.org/10.1515/BOT.2003.013. Export Citation

Citing Articles

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[1]
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[2]
Britas Klemens Eriksson and Lena Bergström
Estuarine, Coastal and Shelf Science, 2005, Volume 62, Number 1-2, Page 109
[3]
Kerstin Johannesson, Daniel Johansson, Karl H. Larsson, Cecilia J. Huenchuñir, Jens Perus, Helena Forslund, Lena Kautsky, and Ricardo T. Pereyra
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[4]
Erik Ytreberg, Jenny Karlsson, Kuria Ndungu, Martin Hassellöv, Eike Breitbarth, and Britta Eklund
Ecotoxicology and Environmental Safety, 2011, Volume 74, Number 4, Page 636
[5]
Jenny Karlsson, Magnus Breitholtz, and Britta Eklund
Marine Pollution Bulletin, 2006, Volume 52, Number 12, Page 1661
[6]
KERSTIN JOHANNESSON and CARL ANDRÉ
Molecular Ecology, 2006, Volume 15, Number 8, Page 2013
[7]
Britta Eklund, Maria Elfström, Irene Gallego, Bengt-Erik Bengtsson, and Magnus Breitholtz
Journal of Soils and Sediments, 2010, Volume 10, Number 1, Page 127
[8]
Lena Bergstrom and Lena Kautsky
Journal of Phycology, 2006, Volume 42, Number 1, Page 36
[9]
Lena Bergstrom, Andrey Tatarenkov, Kerstin Johannesson, Rita B Jonsson, and Lena Kautsky
Journal of Phycology, 2005, Volume 41, Number 5, Page 1025
[10]

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