LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1
ABSTRACT The seasonality of Delesseria sanguinea, Membranoptera alata, and Phycodrys rubens (Rhodophyta) was studied at Helgoland (North Sea, Germany) and Roscoff (Brittany, France). Plants were collected at bimonthly intervals, and growth and reproduction were monitored. Growth of blades was observ...
Published in: | Journal of Phycology |
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crwiley:10.1111/j.0022-3646.1997.00330.x 2024-06-02T08:04:08+00:00 LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 Molenaar, F. J. Breeman, A. M. 1997 http://dx.doi.org/10.1111/j.0022-3646.1997.00330.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1997.00330.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1997.00330.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 33, issue 3, page 330-343 ISSN 0022-3646 1529-8817 journal-article 1997 crwiley https://doi.org/10.1111/j.0022-3646.1997.00330.x 2024-05-03T10:51:00Z ABSTRACT The seasonality of Delesseria sanguinea, Membranoptera alata, and Phycodrys rubens (Rhodophyta) was studied at Helgoland (North Sea, Germany) and Roscoff (Brittany, France). Plants were collected at bimonthly intervals, and growth and reproduction were monitored. Growth of blades was observed mainly in spring, although small blades were found on plants of M. alata and P. rubens all year round. In summer, plants started to degenerate and in autumn they became fertile. The reproductive season of D. sanguinea lasted from October to February/April at both locations, whereas reproductive plants of M. alata and P. rubens were found until April at Helgoland and until June and August, respectively, in Roscoff : Lower winter temperatures at Helgoland than at Rascoff may have caused these differences in the duration of the reproductive season. Using published data, the seasonal patterns at Helgoland and Roscoff were compared to those found at other locations (e.g. Barents Sea; Maine, USA; Isle of Man, UK) and local temperature/daylength conditions. Blade growth was synchronized across all populations and occurred in spring, when temperatures were usually still suboptimal for growth. Maximum reproduction was generally found in the colder half of the year but started earlier in autumn in the Barents Sea. Adaptive strategies in the seasonal control of growth and reproduction are discussed. Adequate timing of the history events (e.g. appearance of juveniles in spring) appears more important than maximal growth and reproduction of adults during the season with the most favorable temperatures. Article in Journal/Newspaper Barents Sea Wiley Online Library Barents Sea Helgoland Journal of Phycology 33 3 330 343 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT The seasonality of Delesseria sanguinea, Membranoptera alata, and Phycodrys rubens (Rhodophyta) was studied at Helgoland (North Sea, Germany) and Roscoff (Brittany, France). Plants were collected at bimonthly intervals, and growth and reproduction were monitored. Growth of blades was observed mainly in spring, although small blades were found on plants of M. alata and P. rubens all year round. In summer, plants started to degenerate and in autumn they became fertile. The reproductive season of D. sanguinea lasted from October to February/April at both locations, whereas reproductive plants of M. alata and P. rubens were found until April at Helgoland and until June and August, respectively, in Roscoff : Lower winter temperatures at Helgoland than at Rascoff may have caused these differences in the duration of the reproductive season. Using published data, the seasonal patterns at Helgoland and Roscoff were compared to those found at other locations (e.g. Barents Sea; Maine, USA; Isle of Man, UK) and local temperature/daylength conditions. Blade growth was synchronized across all populations and occurred in spring, when temperatures were usually still suboptimal for growth. Maximum reproduction was generally found in the colder half of the year but started earlier in autumn in the Barents Sea. Adaptive strategies in the seasonal control of growth and reproduction are discussed. Adequate timing of the history events (e.g. appearance of juveniles in spring) appears more important than maximal growth and reproduction of adults during the season with the most favorable temperatures. |
format |
Article in Journal/Newspaper |
author |
Molenaar, F. J. Breeman, A. M. |
spellingShingle |
Molenaar, F. J. Breeman, A. M. LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 |
author_facet |
Molenaar, F. J. Breeman, A. M. |
author_sort |
Molenaar, F. J. |
title |
LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 |
title_short |
LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 |
title_full |
LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 |
title_fullStr |
LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 |
title_full_unstemmed |
LATITUDINAL TRENDS IN THE GROWTH AND REPRODUCTIVE SEASONALITY OF DELESSERIA SANGUINEA, MEMBRANOPTERA ALATA, AND PHYCODRYS RUBENS (RHODOPHYTA) 1 |
title_sort |
latitudinal trends in the growth and reproductive seasonality of delesseria sanguinea, membranoptera alata, and phycodrys rubens (rhodophyta) 1 |
publisher |
Wiley |
publishDate |
1997 |
url |
http://dx.doi.org/10.1111/j.0022-3646.1997.00330.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.0022-3646.1997.00330.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.0022-3646.1997.00330.x |
geographic |
Barents Sea Helgoland |
geographic_facet |
Barents Sea Helgoland |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
Journal of Phycology volume 33, issue 3, page 330-343 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.0022-3646.1997.00330.x |
container_title |
Journal of Phycology |
container_volume |
33 |
container_issue |
3 |
container_start_page |
330 |
op_container_end_page |
343 |
_version_ |
1800748772596121600 |