Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic
The bloom-forming dinoflagellate Alexandrium fundyense has been extensively studied due its toxin-producing capabilities and consequent impacts on human health and eco - nomies. This study investigated the prevalence of resting cysts of A. fundyense in western Greenland and Iceland, to assess the hi...
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Online Access: | https://epic.awi.de/id/eprint/41171/ https://epic.awi.de/id/eprint/41171/1/2016_Richlen_MEPS.pdf https://hdl.handle.net/10013/epic.48129 https://hdl.handle.net/10013/epic.48129.d001 |
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ftawi:oai:epic.awi.de:41171 2024-09-15T17:51:33+00:00 Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic Richlen, Mindy Zielinski, Oliver Hollinde, Lars Tillmann, Urban Cembella, Allan Lyu, Yihua Anderson, D. M. 2016 application/pdf https://epic.awi.de/id/eprint/41171/ https://epic.awi.de/id/eprint/41171/1/2016_Richlen_MEPS.pdf https://hdl.handle.net/10013/epic.48129 https://hdl.handle.net/10013/epic.48129.d001 unknown INTER-RESEARCH https://epic.awi.de/id/eprint/41171/1/2016_Richlen_MEPS.pdf https://hdl.handle.net/10013/epic.48129.d001 Richlen, M. , Zielinski, O. , Hollinde, L. , Tillmann, U. orcid:0000-0002-8207-4382 , Cembella, A. , Lyu, Y. and Anderson, D. M. (2016) Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic , Marine Ecology-Progress Series, 547 , pp. 33-46 . doi:10.3354/meps11660 <https://doi.org/10.3354/meps11660> , hdl:10013/epic.48129 EPIC3Marine Ecology-Progress Series, INTER-RESEARCH, 547, pp. 33-46, ISSN: 0171-8630 Article isiRev 2016 ftawi https://doi.org/10.3354/meps11660 2024-06-24T04:14:20Z The bloom-forming dinoflagellate Alexandrium fundyense has been extensively studied due its toxin-producing capabilities and consequent impacts on human health and eco - nomies. This study investigated the prevalence of resting cysts of A. fundyense in western Greenland and Iceland, to assess the historical presence and magnitude of bloom populations in the region, and to characterize environmental conditions during summer, when bloom development may occur. Analysis of sediments collected from these locations showed that A. fundyense cysts were present at low to moderate densities in most areas surveyed, with highest densities observed in western Iceland. Additionally, laboratory experiments were conducted on clonal cultures established from isolated cysts or vegetative cells from Greenland, Iceland, and the Chukchi Sea (near Alaska) to examine the effects of photoperiod interval and irradiance levels on growth. Growth rates in response to the experimental treatments varied among isolates, but were generally highest under conditions that included both the shortest photoperiod interval (16 h light:8 h dark) and higher irradiance levels (~146 to 366 μmol photons m−2 s−1), followed by growth under an extended photoperiod interval and low irradiance level (~37 μmol photons m−2 s−1). Based on field and laboratory data, we hypothesize that blooms in Greenland are primarily derived from advected A. fundyense populations, as low bottom temperatures and limited light availability would likely preclude in situ bloom development. In contrast, the bays and fjords in Iceland may provide more favorable habitat for germling cell survival and growth and therefore may support indigenous, self-seeding blooms. Article in Journal/Newspaper Arctic Chukchi Chukchi Sea Greenland Human health Iceland Alaska Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Marine Ecology Progress Series 547 33 46 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The bloom-forming dinoflagellate Alexandrium fundyense has been extensively studied due its toxin-producing capabilities and consequent impacts on human health and eco - nomies. This study investigated the prevalence of resting cysts of A. fundyense in western Greenland and Iceland, to assess the historical presence and magnitude of bloom populations in the region, and to characterize environmental conditions during summer, when bloom development may occur. Analysis of sediments collected from these locations showed that A. fundyense cysts were present at low to moderate densities in most areas surveyed, with highest densities observed in western Iceland. Additionally, laboratory experiments were conducted on clonal cultures established from isolated cysts or vegetative cells from Greenland, Iceland, and the Chukchi Sea (near Alaska) to examine the effects of photoperiod interval and irradiance levels on growth. Growth rates in response to the experimental treatments varied among isolates, but were generally highest under conditions that included both the shortest photoperiod interval (16 h light:8 h dark) and higher irradiance levels (~146 to 366 μmol photons m−2 s−1), followed by growth under an extended photoperiod interval and low irradiance level (~37 μmol photons m−2 s−1). Based on field and laboratory data, we hypothesize that blooms in Greenland are primarily derived from advected A. fundyense populations, as low bottom temperatures and limited light availability would likely preclude in situ bloom development. In contrast, the bays and fjords in Iceland may provide more favorable habitat for germling cell survival and growth and therefore may support indigenous, self-seeding blooms. |
format |
Article in Journal/Newspaper |
author |
Richlen, Mindy Zielinski, Oliver Hollinde, Lars Tillmann, Urban Cembella, Allan Lyu, Yihua Anderson, D. M. |
spellingShingle |
Richlen, Mindy Zielinski, Oliver Hollinde, Lars Tillmann, Urban Cembella, Allan Lyu, Yihua Anderson, D. M. Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic |
author_facet |
Richlen, Mindy Zielinski, Oliver Hollinde, Lars Tillmann, Urban Cembella, Allan Lyu, Yihua Anderson, D. M. |
author_sort |
Richlen, Mindy |
title |
Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic |
title_short |
Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic |
title_full |
Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic |
title_fullStr |
Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic |
title_full_unstemmed |
Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic |
title_sort |
distribution of alexandrium fundyense (dinophyceae) cysts in greenland and iceland, with an emphasis on viability and growth in the arctic |
publisher |
INTER-RESEARCH |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41171/ https://epic.awi.de/id/eprint/41171/1/2016_Richlen_MEPS.pdf https://hdl.handle.net/10013/epic.48129 https://hdl.handle.net/10013/epic.48129.d001 |
genre |
Arctic Chukchi Chukchi Sea Greenland Human health Iceland Alaska |
genre_facet |
Arctic Chukchi Chukchi Sea Greenland Human health Iceland Alaska |
op_source |
EPIC3Marine Ecology-Progress Series, INTER-RESEARCH, 547, pp. 33-46, ISSN: 0171-8630 |
op_relation |
https://epic.awi.de/id/eprint/41171/1/2016_Richlen_MEPS.pdf https://hdl.handle.net/10013/epic.48129.d001 Richlen, M. , Zielinski, O. , Hollinde, L. , Tillmann, U. orcid:0000-0002-8207-4382 , Cembella, A. , Lyu, Y. and Anderson, D. M. (2016) Distribution of Alexandrium fundyense (Dinophyceae) cysts in Greenland and Iceland, with an emphasis on viability and growth in the Arctic , Marine Ecology-Progress Series, 547 , pp. 33-46 . doi:10.3354/meps11660 <https://doi.org/10.3354/meps11660> , hdl:10013/epic.48129 |
op_doi |
https://doi.org/10.3354/meps11660 |
container_title |
Marine Ecology Progress Series |
container_volume |
547 |
container_start_page |
33 |
op_container_end_page |
46 |
_version_ |
1810293477428166656 |