Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere
Publisher's version (útgefin grein) Apicomplexans comprise a group of unicellular, often highly pathogenic, obligate parasites exploiting either one or two hosts to complete a full reproductive cycle. For decades, various scallop populations have suffered cyclical mass mortality events, several...
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Online Access: | https://hdl.handle.net/20.500.11815/1352 https://doi.org/10.1038/s41598-018-26158-1 |
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/1352 2023-05-15T16:51:06+02:00 Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere Kristmundsson, Árni Freeman, Mark Andrew Institute for Experimental Pathology, Keldur (UI) Tilraunastöð í meinafræði að Keldum (HÍ) Heilbrigðisvísindasvið (HÍ) School of Health Sciences (UI) Háskóli Íslands University of Iceland 2018-05-18 7865 https://hdl.handle.net/20.500.11815/1352 https://doi.org/10.1038/s41598-018-26158-1 en eng Springer Science and Business Media LLC Scientific Reports;8(1) Kristmundsson, Á., & Freeman, M. A. (2018). Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere. Scientific Reports, 8(1), 7865. doi:10.1038/s41598-018-26158-1 2045-2322 https://hdl.handle.net/20.500.11815/1352 Scientific Reports doi:10.1038/s41598-018-26158-1 info:eu-repo/semantics/openAccess Multidisciplinary Parasitology Apicomplexans Scallop Sníklar Sníkjulíf Skeldýr info:eu-repo/semantics/article 2018 ftopinvisindi https://doi.org/20.500.11815/1352 https://doi.org/10.1038/s41598-018-26158-1 2022-11-18T06:51:48Z Publisher's version (útgefin grein) Apicomplexans comprise a group of unicellular, often highly pathogenic, obligate parasites exploiting either one or two hosts to complete a full reproductive cycle. For decades, various scallop populations have suffered cyclical mass mortality events, several of which shown to be caused by apicomplexan infections. We report the first dual mollusc life cycle for an apicomplexan: a species highly pathogenic in various pectinid bivalve species, but apathogenic when infecting the common whelk as Merocystis kathae. The sympatric distribution of the common whelk and scallops in the North Atlantic makes transmission extremely effective, occurring via the gastrointestinal tract, by scavenging and predation in whelks and unselective filter feeding in scallops. Infective sporozoites from whelks utilize scallops´ haemocytes to reach muscular tissue, where asexual reproduction occurs. Phylogenetically, this apicomplexan is robustly placed within the Aggregatidae and its inclusion in analyses supports a common ancestry with other basal invertebrate apicomplexans. Scallops seem able to regulate lowlevel infections of M. kathae as they exist in normal populations while epizootics occur during high levels of exposure from locally infected whelks. A targeted removal of whelks from valuable scallop grounds would be advantageous to minimize the occurrence of M. kathae epizootics and prevent damaging economic losses. We acknowledge the staff at the Marine and Freshwater Research Institute in Iceland and Grant Campell at Scothatch scallop ranch, for sampling of research material. Peer Reviewed Article in Journal/Newspaper Iceland North Atlantic Opin vísindi (Iceland) Scientific Reports 8 1 |
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Open Polar |
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Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Multidisciplinary Parasitology Apicomplexans Scallop Sníklar Sníkjulíf Skeldýr |
spellingShingle |
Multidisciplinary Parasitology Apicomplexans Scallop Sníklar Sníkjulíf Skeldýr Kristmundsson, Árni Freeman, Mark Andrew Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
topic_facet |
Multidisciplinary Parasitology Apicomplexans Scallop Sníklar Sníkjulíf Skeldýr |
description |
Publisher's version (útgefin grein) Apicomplexans comprise a group of unicellular, often highly pathogenic, obligate parasites exploiting either one or two hosts to complete a full reproductive cycle. For decades, various scallop populations have suffered cyclical mass mortality events, several of which shown to be caused by apicomplexan infections. We report the first dual mollusc life cycle for an apicomplexan: a species highly pathogenic in various pectinid bivalve species, but apathogenic when infecting the common whelk as Merocystis kathae. The sympatric distribution of the common whelk and scallops in the North Atlantic makes transmission extremely effective, occurring via the gastrointestinal tract, by scavenging and predation in whelks and unselective filter feeding in scallops. Infective sporozoites from whelks utilize scallops´ haemocytes to reach muscular tissue, where asexual reproduction occurs. Phylogenetically, this apicomplexan is robustly placed within the Aggregatidae and its inclusion in analyses supports a common ancestry with other basal invertebrate apicomplexans. Scallops seem able to regulate lowlevel infections of M. kathae as they exist in normal populations while epizootics occur during high levels of exposure from locally infected whelks. A targeted removal of whelks from valuable scallop grounds would be advantageous to minimize the occurrence of M. kathae epizootics and prevent damaging economic losses. We acknowledge the staff at the Marine and Freshwater Research Institute in Iceland and Grant Campell at Scothatch scallop ranch, for sampling of research material. Peer Reviewed |
author2 |
Institute for Experimental Pathology, Keldur (UI) Tilraunastöð í meinafræði að Keldum (HÍ) Heilbrigðisvísindasvið (HÍ) School of Health Sciences (UI) Háskóli Íslands University of Iceland |
format |
Article in Journal/Newspaper |
author |
Kristmundsson, Árni Freeman, Mark Andrew |
author_facet |
Kristmundsson, Árni Freeman, Mark Andrew |
author_sort |
Kristmundsson, Árni |
title |
Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
title_short |
Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
title_full |
Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
title_fullStr |
Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
title_full_unstemmed |
Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
title_sort |
harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere |
publisher |
Springer Science and Business Media LLC |
publishDate |
2018 |
url |
https://hdl.handle.net/20.500.11815/1352 https://doi.org/10.1038/s41598-018-26158-1 |
genre |
Iceland North Atlantic |
genre_facet |
Iceland North Atlantic |
op_relation |
Scientific Reports;8(1) Kristmundsson, Á., & Freeman, M. A. (2018). Harmless sea snail parasite causes mass mortalities in numerous commercial scallop populations in the northern hemisphere. Scientific Reports, 8(1), 7865. doi:10.1038/s41598-018-26158-1 2045-2322 https://hdl.handle.net/20.500.11815/1352 Scientific Reports doi:10.1038/s41598-018-26158-1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/1352 https://doi.org/10.1038/s41598-018-26158-1 |
container_title |
Scientific Reports |
container_volume |
8 |
container_issue |
1 |
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1766041218355036160 |