Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis
We used three laboratory experiments as well as measurements, throughout an entire growth season, of the length and survival of sporophytes, sea temperature, and wave height at two subtidal sites in Newfoundland (Canada), to investigate causal relationships between environmental variability, intrace...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.3492 http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1081.3492 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.1081.3492 2023-05-15T17:22:44+02:00 Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis Caitlin Blain Patrick Gagnon The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.3492 http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.3492 http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf text ftciteseerx 2020-05-03T00:25:02Z We used three laboratory experiments as well as measurements, throughout an entire growth season, of the length and survival of sporophytes, sea temperature, and wave height at two subtidal sites in Newfoundland (Canada), to investigate causal relationships between environmental variability, intracellular acidity, growth, and mortality in the highly acidic (H 2 SO 4 ), annual brown seaweed Desmarestia viridis (O.F. Müller) J.V. Lamouroux. Light, grazing, and epibionts did not affect acidity. In the absence of waves, acid loss was threefold lower in cold (6.5°C) than warm (11°C) water, and threefold higher in the absence than presence of waves in warm (11 to 13°C) water. There were three phases of change in frond length at both sites: (1) increase [March to late June], (2) no change [July to mid-August], and (3) decrease [mid-August to late October]. Mortality rates and sea temperature in Phase 1 were low, whereas the onset of increasing mortality at the end of Phase 2 coincided well with the end of a 2-week period during which temperature increased rapidly, from 6 to 11°C. Results strongly suggested the more severe wave climate at the most wave-exposed site in September, when temperature was~10°C, facilitated the dispersal of the acid being released, which delayed mortality by~10 days compared to the other site. All sporophytes had disappeared at both sites in late October. This is the first integrated analysis of seasonal variation in growth and mortality of D. viridis sporophytes. The strong connections between laboratory and field data attest to the critical role that thermal and hydrodynamic environments play in the life history of this unique seaweed. Text Newfoundland Unknown Canada |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
We used three laboratory experiments as well as measurements, throughout an entire growth season, of the length and survival of sporophytes, sea temperature, and wave height at two subtidal sites in Newfoundland (Canada), to investigate causal relationships between environmental variability, intracellular acidity, growth, and mortality in the highly acidic (H 2 SO 4 ), annual brown seaweed Desmarestia viridis (O.F. Müller) J.V. Lamouroux. Light, grazing, and epibionts did not affect acidity. In the absence of waves, acid loss was threefold lower in cold (6.5°C) than warm (11°C) water, and threefold higher in the absence than presence of waves in warm (11 to 13°C) water. There were three phases of change in frond length at both sites: (1) increase [March to late June], (2) no change [July to mid-August], and (3) decrease [mid-August to late October]. Mortality rates and sea temperature in Phase 1 were low, whereas the onset of increasing mortality at the end of Phase 2 coincided well with the end of a 2-week period during which temperature increased rapidly, from 6 to 11°C. Results strongly suggested the more severe wave climate at the most wave-exposed site in September, when temperature was~10°C, facilitated the dispersal of the acid being released, which delayed mortality by~10 days compared to the other site. All sporophytes had disappeared at both sites in late October. This is the first integrated analysis of seasonal variation in growth and mortality of D. viridis sporophytes. The strong connections between laboratory and field data attest to the critical role that thermal and hydrodynamic environments play in the life history of this unique seaweed. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Caitlin Blain Patrick Gagnon |
spellingShingle |
Caitlin Blain Patrick Gagnon Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis |
author_facet |
Caitlin Blain Patrick Gagnon |
author_sort |
Caitlin Blain |
title |
Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis |
title_short |
Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis |
title_full |
Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis |
title_fullStr |
Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis |
title_full_unstemmed |
Interactions between thermal and wave environments mediate intracellular acidity (H 2 SO 4 ), growth, and mortality in the annual brown seaweed Desmarestia viridis |
title_sort |
interactions between thermal and wave environments mediate intracellular acidity (h 2 so 4 ), growth, and mortality in the annual brown seaweed desmarestia viridis |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.3492 http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1081.3492 http://www.ucs.mun.ca/%7Epgagnon/papers/2013jembe.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766109559247601664 |