Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA
Distribution and abundance of common parasitic nematodes in marine fishes is not well documented in many geographic regions. Understanding the influence of large-scale environmental changes on infection rates of fish by nematodes requires quantitative assessments of parasite abundance for multiple h...
Published in: | Diversity |
---|---|
Main Authors: | , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2021
|
Subjects: | |
Online Access: | https://doi.org/10.3390/d13090436 |
id |
ftmdpi:oai:mdpi.com:/1424-2818/13/9/436/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/1424-2818/13/9/436/ 2023-08-20T04:07:47+02:00 Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA Mehmet Cemal Oğuz Andrea McRae Campbell Samuel P. Bennett Mark C. Belk agris 2021-09-10 application/pdf https://doi.org/10.3390/d13090436 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/d13090436 https://creativecommons.org/licenses/by/4.0/ Diversity; Volume 13; Issue 9; Pages: 436 Anisakidae Chromadorea Southwest Alaska Gadus Sebastes Text 2021 ftmdpi https://doi.org/10.3390/d13090436 2023-08-01T02:39:50Z Distribution and abundance of common parasitic nematodes in marine fishes is not well documented in many geographic regions. Understanding the influence of large-scale environmental changes on infection rates of fish by nematodes requires quantitative assessments of parasite abundance for multiple host species. We collected samples of two species of cod and eight species of rockfish (total of 232 specimens) from waters near Kodiak Island, Alaska, USA during Spring and Summer of 2015, and dissected and recorded all internal nematode parasites. We quantified the prevalence and intensity of nematode parasites in the ten host species, and tested for differences in prevalence among host species. We found three species of nematode: Anisakis simplex, sensu lato (Van Thiel), Pseudoterranova decipiens, sensu lato (Krabbe), and Hysterothylacium sp. (Ward and Magath). Eighty-two percent of the examined fish were infected with at least one parasitic nematode. The overall prevalence of P. decipiens, A. simplex, and Hysterothylacium sp. was 56%, 62%, and 2%, respectively. Anisakis simplex and P. decipiens were abundant and present in all ten species of host fish examined, whereas Hysterothylacium sp. was rare and found in only five of the host fish species. Prevalence and mean intensity of P. decipiens and A. simplex varied across the ten host species, and the number of parasites varied substantially among individual hosts within host species. The mean intensity of P. terranova and A. simplex in our study was substantially higher than the mean intensity for these same species from multiple other locations in a recent meta-analysis. This study provides a baseline of nematode parasite abundance in long-lived fish in waters near Kodiak Island, AK, and fills an important gap in our quantitative understanding of patterns of occurrence and abundance of these common and widespread parasites of marine fish. Text Kodiak Terranova Alaska MDPI Open Access Publishing Diversity 13 9 436 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Anisakidae Chromadorea Southwest Alaska Gadus Sebastes |
spellingShingle |
Anisakidae Chromadorea Southwest Alaska Gadus Sebastes Mehmet Cemal Oğuz Andrea McRae Campbell Samuel P. Bennett Mark C. Belk Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA |
topic_facet |
Anisakidae Chromadorea Southwest Alaska Gadus Sebastes |
description |
Distribution and abundance of common parasitic nematodes in marine fishes is not well documented in many geographic regions. Understanding the influence of large-scale environmental changes on infection rates of fish by nematodes requires quantitative assessments of parasite abundance for multiple host species. We collected samples of two species of cod and eight species of rockfish (total of 232 specimens) from waters near Kodiak Island, Alaska, USA during Spring and Summer of 2015, and dissected and recorded all internal nematode parasites. We quantified the prevalence and intensity of nematode parasites in the ten host species, and tested for differences in prevalence among host species. We found three species of nematode: Anisakis simplex, sensu lato (Van Thiel), Pseudoterranova decipiens, sensu lato (Krabbe), and Hysterothylacium sp. (Ward and Magath). Eighty-two percent of the examined fish were infected with at least one parasitic nematode. The overall prevalence of P. decipiens, A. simplex, and Hysterothylacium sp. was 56%, 62%, and 2%, respectively. Anisakis simplex and P. decipiens were abundant and present in all ten species of host fish examined, whereas Hysterothylacium sp. was rare and found in only five of the host fish species. Prevalence and mean intensity of P. decipiens and A. simplex varied across the ten host species, and the number of parasites varied substantially among individual hosts within host species. The mean intensity of P. terranova and A. simplex in our study was substantially higher than the mean intensity for these same species from multiple other locations in a recent meta-analysis. This study provides a baseline of nematode parasite abundance in long-lived fish in waters near Kodiak Island, AK, and fills an important gap in our quantitative understanding of patterns of occurrence and abundance of these common and widespread parasites of marine fish. |
format |
Text |
author |
Mehmet Cemal Oğuz Andrea McRae Campbell Samuel P. Bennett Mark C. Belk |
author_facet |
Mehmet Cemal Oğuz Andrea McRae Campbell Samuel P. Bennett Mark C. Belk |
author_sort |
Mehmet Cemal Oğuz |
title |
Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA |
title_short |
Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA |
title_full |
Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA |
title_fullStr |
Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA |
title_full_unstemmed |
Nematode Parasites of Rockfish (Sebastes spp.) and Cod (Gadus spp.) from Waters near Kodiak Island Alaska, USA |
title_sort |
nematode parasites of rockfish (sebastes spp.) and cod (gadus spp.) from waters near kodiak island alaska, usa |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/d13090436 |
op_coverage |
agris |
genre |
Kodiak Terranova Alaska |
genre_facet |
Kodiak Terranova Alaska |
op_source |
Diversity; Volume 13; Issue 9; Pages: 436 |
op_relation |
https://dx.doi.org/10.3390/d13090436 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/d13090436 |
container_title |
Diversity |
container_volume |
13 |
container_issue |
9 |
container_start_page |
436 |
_version_ |
1774719660226248704 |