Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche
International audience Phenological study of the reproduction of the Rhodophyceae Palmaria palmata along the French coast of the English Channel. In the rocky, intertidal level of the North Atlantic coast, Palmaria palmata is in terms of biomass, one of the most important Rhodophyceae. This economic...
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ftsorbonneuniv:oai:HAL:mnhn-03629661v1 2024-09-15T18:23:42+00:00 Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche Le Gall, Line Deniaud, Estelle Rusig, Anne-Marie Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 2004 https://mnhn.hal.science/mnhn-03629661 https://doi.org/10.21411/CBM.A.86AC8250 en eng HAL CCSD Station Biologique de Roscoff info:eu-repo/semantics/altIdentifier/doi/10.21411/CBM.A.86AC8250 mnhn-03629661 https://mnhn.hal.science/mnhn-03629661 doi:10.21411/CBM.A.86AC8250 ISSN: 0007-9723 EISSN: 2262-3094 Cahiers de Biologie Marine https://mnhn.hal.science/mnhn-03629661 Cahiers de Biologie Marine, 2004, 45 (3), pp.269-275. ⟨10.21411/CBM.A.86AC8250⟩ [SDV.BV]Life Sciences [q-bio]/Vegetal Biology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biology [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2004 ftsorbonneuniv https://doi.org/10.21411/CBM.A.86AC8250 2024-07-25T23:47:51Z International audience Phenological study of the reproduction of the Rhodophyceae Palmaria palmata along the French coast of the English Channel. In the rocky, intertidal level of the North Atlantic coast, Palmaria palmata is in terms of biomass, one of the most important Rhodophyceae. This economically interesting seaweed is harvested for several applications, and it is therefore important to evaluate algae stocks and to study population dynamics. Hence, a phenological study of four popu- lations of P. palmata was undertaken along the french coast of the English Channel. We were able to establish that some sporophytic and male gametophytic plants were fertile in fall and winter, while the majority of plants remained sterile during the whole year. Data have shown wide variations between the three sites studied regarding timing and the capacity of annual reproduction. Thallus fertility occurs earlier in the Western part of the English Channel than in the Eastern part, which could be explained by the differing water temperature gradient. The annual reproduction capacity is high at Roscoff, medium at Cap Lévy and weak at St Aubin. Article in Journal/Newspaper North Atlantic HAL Sorbonne Université |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biology [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV]Life Sciences [q-bio] |
spellingShingle |
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biology [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV]Life Sciences [q-bio] Le Gall, Line Deniaud, Estelle Rusig, Anne-Marie Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche |
topic_facet |
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology [SDV.BID]Life Sciences [q-bio]/Biodiversity [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biology [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy [SDV]Life Sciences [q-bio] |
description |
International audience Phenological study of the reproduction of the Rhodophyceae Palmaria palmata along the French coast of the English Channel. In the rocky, intertidal level of the North Atlantic coast, Palmaria palmata is in terms of biomass, one of the most important Rhodophyceae. This economically interesting seaweed is harvested for several applications, and it is therefore important to evaluate algae stocks and to study population dynamics. Hence, a phenological study of four popu- lations of P. palmata was undertaken along the french coast of the English Channel. We were able to establish that some sporophytic and male gametophytic plants were fertile in fall and winter, while the majority of plants remained sterile during the whole year. Data have shown wide variations between the three sites studied regarding timing and the capacity of annual reproduction. Thallus fertility occurs earlier in the Western part of the English Channel than in the Eastern part, which could be explained by the differing water temperature gradient. The annual reproduction capacity is high at Roscoff, medium at Cap Lévy and weak at St Aubin. |
author2 |
Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) |
format |
Article in Journal/Newspaper |
author |
Le Gall, Line Deniaud, Estelle Rusig, Anne-Marie |
author_facet |
Le Gall, Line Deniaud, Estelle Rusig, Anne-Marie |
author_sort |
Le Gall, Line |
title |
Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche |
title_short |
Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche |
title_full |
Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche |
title_fullStr |
Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche |
title_full_unstemmed |
Étude de la phénologie de la reproduction de la Rhodophyceae Palmaria palmata le long des côtes françaises de la Manche |
title_sort |
étude de la phénologie de la reproduction de la rhodophyceae palmaria palmata le long des côtes françaises de la manche |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://mnhn.hal.science/mnhn-03629661 https://doi.org/10.21411/CBM.A.86AC8250 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0007-9723 EISSN: 2262-3094 Cahiers de Biologie Marine https://mnhn.hal.science/mnhn-03629661 Cahiers de Biologie Marine, 2004, 45 (3), pp.269-275. ⟨10.21411/CBM.A.86AC8250⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.21411/CBM.A.86AC8250 mnhn-03629661 https://mnhn.hal.science/mnhn-03629661 doi:10.21411/CBM.A.86AC8250 |
op_doi |
https://doi.org/10.21411/CBM.A.86AC8250 |
_version_ |
1810463956725137408 |