Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters
Oysters are a major commercial and ecological fishery resource. Recently, the oyster industry has experienced mass mortality in summer due to environmental factors. Generally, the survival of oysters in aquatic environments is mainly impacted by environmental stressors such as elevated sea temperatu...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2023
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2023.1275521 https://doaj.org/article/3446bd99e9d446ff985c20eb63ed4508 |
id |
ftdoajarticles:oai:doaj.org/article:3446bd99e9d446ff985c20eb63ed4508 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:3446bd99e9d446ff985c20eb63ed4508 2023-12-03T10:28:40+01:00 Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters Jang-Mu Heo Seong-Su Kim Do-Youn Kim Soon Woo Lee Jung Suk Lee Min Ho Kang Seong Eun Kim 2023-11-01T00:00:00Z https://doi.org/10.3389/fmars.2023.1275521 https://doaj.org/article/3446bd99e9d446ff985c20eb63ed4508 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2023.1275521/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1275521 https://doaj.org/article/3446bd99e9d446ff985c20eb63ed4508 Frontiers in Marine Science, Vol 10 (2023) pacific oyster mass mortality Bayesian Network machine learning tidal emersion heat wave Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2023 ftdoajarticles https://doi.org/10.3389/fmars.2023.1275521 2023-11-05T01:38:15Z Oysters are a major commercial and ecological fishery resource. Recently, the oyster industry has experienced mass mortality in summer due to environmental factors. Generally, the survival of oysters in aquatic environments is mainly impacted by environmental stressors such as elevated sea temperatures and reduced salinity; however, the stressors impacting tidal flat oysters that are repeatedly exposed to air remain poorly understood. Hence, we studied the relationship between environmental factors and the survival of tidal flat pacific oysters in Incheon, South Korea, where mass mortality is common. Principal component analysis and Bayesian networks revealed that air temperature (in spring and summer) and sea temperature (in summer) are related to oyster production. In habitats of the tidal flat oysters during the summer, high temperatures of 34.7–35.4°C (maximum 47.6°C) were observed for average durations of 0.8–1.9 hours (maximum 3.6 hours). Furthermore, heat waves occurred for up to 12 consecutive days. Results from the multiple stress test showed that when exposed to 45°C (air temperature) for 4 hours per day, the survival rate of oysters was 42.5% after only 2 days and 0% after 6 days. The findings stemming from the field observations and stress tests suggest that high temperatures during emersion may contribute to mass mortality of oysters in summer, indicating a potential threat to oysters due to climate change. To understand the effects of future thermal stress on oysters more accurately, simultaneous long-term trend analyses and field-based observations are required. Article in Journal/Newspaper Pacific oyster Directory of Open Access Journals: DOAJ Articles Pacific Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
pacific oyster mass mortality Bayesian Network machine learning tidal emersion heat wave Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
pacific oyster mass mortality Bayesian Network machine learning tidal emersion heat wave Science Q General. Including nature conservation geographical distribution QH1-199.5 Jang-Mu Heo Seong-Su Kim Do-Youn Kim Soon Woo Lee Jung Suk Lee Min Ho Kang Seong Eun Kim Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
topic_facet |
pacific oyster mass mortality Bayesian Network machine learning tidal emersion heat wave Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Oysters are a major commercial and ecological fishery resource. Recently, the oyster industry has experienced mass mortality in summer due to environmental factors. Generally, the survival of oysters in aquatic environments is mainly impacted by environmental stressors such as elevated sea temperatures and reduced salinity; however, the stressors impacting tidal flat oysters that are repeatedly exposed to air remain poorly understood. Hence, we studied the relationship between environmental factors and the survival of tidal flat pacific oysters in Incheon, South Korea, where mass mortality is common. Principal component analysis and Bayesian networks revealed that air temperature (in spring and summer) and sea temperature (in summer) are related to oyster production. In habitats of the tidal flat oysters during the summer, high temperatures of 34.7–35.4°C (maximum 47.6°C) were observed for average durations of 0.8–1.9 hours (maximum 3.6 hours). Furthermore, heat waves occurred for up to 12 consecutive days. Results from the multiple stress test showed that when exposed to 45°C (air temperature) for 4 hours per day, the survival rate of oysters was 42.5% after only 2 days and 0% after 6 days. The findings stemming from the field observations and stress tests suggest that high temperatures during emersion may contribute to mass mortality of oysters in summer, indicating a potential threat to oysters due to climate change. To understand the effects of future thermal stress on oysters more accurately, simultaneous long-term trend analyses and field-based observations are required. |
format |
Article in Journal/Newspaper |
author |
Jang-Mu Heo Seong-Su Kim Do-Youn Kim Soon Woo Lee Jung Suk Lee Min Ho Kang Seong Eun Kim |
author_facet |
Jang-Mu Heo Seong-Su Kim Do-Youn Kim Soon Woo Lee Jung Suk Lee Min Ho Kang Seong Eun Kim |
author_sort |
Jang-Mu Heo |
title |
Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
title_short |
Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
title_full |
Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
title_fullStr |
Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
title_full_unstemmed |
Impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
title_sort |
impact of exposure temperature rise on mass mortality of tidal flat pacific oysters |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1275521 https://doaj.org/article/3446bd99e9d446ff985c20eb63ed4508 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Pacific oyster |
genre_facet |
Pacific oyster |
op_source |
Frontiers in Marine Science, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2023.1275521/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1275521 https://doaj.org/article/3446bd99e9d446ff985c20eb63ed4508 |
op_doi |
https://doi.org/10.3389/fmars.2023.1275521 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1784253488214048768 |