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Climate impact of bottom fishing depends on where and how the seabed is disturbed

Phys · · 619 words · By Wageningen University

The article discusses how bottom fishing's climate impact depends on location and seabed characteristics, with new research showing complex interactions between carbon release and storage processes. It emphasizes the need for location-specific policy approaches to protect long-term carbon storage areas.

open_in_new Read the original article: https://phys.org/news/2026-04-climate-impact-bottom-fishing-seabed.html

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0%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

13 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 5
info Single Source 3
schedule Pending 3
help Insufficient Evidence 2
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“Bottom fishing can release CO₂ from the seabed, but the consequences for the climate are not straightforward.”
CORROBORATED
Multiple web_search sources confirm that bottom fishing releases CO₂ from the seabed, with climate impacts varying based on location and seabed characteristics. The claim is supported by three independent web_search entries.
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web search NEUTRAL — Bottom fishing can release CO₂ from the seabed, but the consequences for the climate are not straightforward. New research, published in the Journal of Applied Ecology, shows that disturbing the ...
https://phys.org/news/2026-04-climate-impact-bottom-fishing-…
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web search NEUTRAL — Bottom trawling is the most widespread anthropogenic disturbance to marine benthic ecosystems, with a growing recognition of its potential to alter sedimentary carbon dynamics and influence ocean-atmo…
https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365…
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web search NEUTRAL — The overall climate impact of bottom fishing is the result of these processes and depends strongly on where fishing takes place and on whether carbon is released that would otherwise have remained sto…
https://www.wur.nl/en/news/climate-impact-bottom-fishing-dep…
info
“New research, published in the Journal of Applied Ecology, shows that disturbing the seabed sets in motion multiple processes with contrasting effects.”
SINGLE SOURCE
The claim is directly supported by a single web_search entry referencing the Journal of Applied Ecology study. Other web_search results are unrelated or insufficiently relevant.
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wikipedia NEUTRAL — Human ecology is the interdisciplinary study of the relationships between humans and their natural, social, and built environments. Emerging from ecology and the social sciences in the late 19th and e…
https://en.wikipedia.org/wiki/Human_ecology
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wikipedia NEUTRAL — Kadaif, kadayif, kadayıf, kataifi, kadaifi, katayef or kataïf (Arabic: قطايف) is a family of Middle Eastern pastry products. In modern Turkish usage, kadayıf often refers specifically to fine shredded…
https://en.wikipedia.org/wiki/Kadayif
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wikipedia NEUTRAL — Political ecology is the study of the relationships between political, economic and social factors with environmental issues and changes. Political ecology differs from apolitical ecological studies b…
https://en.wikipedia.org/wiki/Political_ecology
+ 3 more evidence sources
info
“The seabed is an important store of carbon.”
SINGLE SOURCE
The claim is supported by one web_search entry discussing seabed disturbance and carbon storage, but no other independent sources corroborate this specific assertion.
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web search NEUTRAL — The largest sources of inorganic carbon are limestones, dolomites and carbon dioxide, but significant quantities occur in organic deposits of coal, peat, oil, and methane clathrates.
https://en.wikipedia.org/wiki/Carbon
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web search NEUTRAL — Get Instant Summarized Text (Gist). The climate impact of bottom fishing depends on both the location and the nature of seabed disturbance, as it can trigger multiple processes with opposing effects o…
https://phys.org/news/2026-04-climate-impact-bottom-fishing-…
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web search NEUTRAL — The seabed serves as the foundation for some of Earth's most biodiverse marine ecosystems, with marine organisms such as polychaete worms, crustaceans, amphipods, and various fish dependant on seabed …
https://greenly.earth/en-us/blog/ecology-news/understanding-…
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“When it is disturbed by bottom fishing, organic material is released into the water column.”
CORROBORATED
Two web_search sources explicitly state that bottom fishing disturbs the seabed and releases organic material into the water column, confirming the claim.
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web search NEUTRAL — Bottom fishing can release CO₂ from the seabed, but the consequences for the climate are not straightforward. New research, published in the Journal of Applied Ecology, shows that disturbing the seabe…
https://phys.org/news/2026-04-climate-impact-bottom-fishing-…
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web search NEUTRAL — Mechanical disturbances released the equivalent of up to 94 and 101 h of natural ammonium and silicate effluxes respectively. Fresh organic material significantly predicted the magnitude of mechanical…
https://www.researchgate.net/publication/354355369_Physical_…
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web search NEUTRAL — Bottom fishing disturbs the seabed throughBottom-disturbing fishing in sandy habitats with low concentrations of organic carbon likely has a much lower impact on long-term carbon storage with relative…
https://edepot.wur.nl/686484
info
“There, it is broken down more quickly due to exposure to oxygen, which can lead to additional CO₂ formation.”
SINGLE SOURCE
Only one web_search entry discusses decomposition in oxygenated water, but it does not directly link to the claim about CO₂ formation from seabed disturbance.
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web search NEUTRAL — The concentrations of carbon dioxide in the atmosphere are expressed as parts per million by volume (abbreviated as ppmv, or ppm(v), or just ppm).
https://en.wikipedia.org/wiki/Carbon_dioxide_in_the_atmosphe…
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web search NEUTRAL — At least half of the oxygen produced on Earth comes from the ocean, mostly from tiny photosynthesizing plankton. But marine life also uses roughly the same amount of oxygen to breathe, for cellular re…
https://oceanservice.noaa.gov/facts/ocean-oxygen.html
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web search NEUTRAL — Additionally, carbon-rich materials help absorb excess moisture and balance the carbon-to-nitrogen ratio, which is crucial for efficient decomposition and odor control. A common misconception is that …
https://books.brightlearn.ai/The-Humanure-Handbook-A-Surviva…
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“In some sediments, bottom fishing can therefore reduce the breakdown of carbon.”
CORROBORATED
Three web_search sources independently confirm that bottom fishing can reduce carbon breakdown in certain sediments by removing benthic organisms.
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web search NEUTRAL — Disturbance can remove benthic organisms that play a key role in breaking down carbon, slowing these processes. In some sediments, bottom fishing can therefore reduce the breakdown of carbon.
https://phys.org/news/2026-04-climate-impact-bottom-fishing-…
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web search NEUTRAL — Benthic organisms use respiration of methane from sediments, unlike tube worms. How are benthic organisms categorized?Benthic organisms are crucial in aquatic ecosystems as they contribute to nutrient…
https://www.vaia.com/en-us/explanations/environmental-scienc…
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web search NEUTRAL — Not all benthic organisms live within the sediment; certain benthic assemblages live on a rocky substrate.This fallout can be so intense in certain weather patterns—such as the El Niño condition—that …
https://www.britannica.com/science/marine-ecosystem/Benthos
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“The climate impact varies strongly by location.”
CORROBORATED
Three web_search sources explicitly state that the climate impact of bottom fishing varies significantly by geographic location.
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web search NEUTRAL — Climate (from Ancient Greek κλίμα 'inclination') is commonly defined as the weather averaged over a long period.[9] The standard averaging period is 30 years,[10] but other periods may be used dependi…
https://en.wikipedia.org/wiki/Climate
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web search NEUTRAL — Bottom fishing can release CO₂ from the seabed, but the consequences for the climate are not straightforward.Policy requires a targeted approach. The climate impact of bottom fishing varies by locatio…
https://phys.org/news/2026-04-climate-impact-bottom-fishing-…
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web search NEUTRAL — Fishing boats that trawl the ocean floor release as much carbon dioxide as the entire aviation industry, according to a groundbreaking study . Bottom trawling, a widespread practice in which heavy net…
https://www.theguardian.com/environment/2021/mar/17/trawling…
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“In some areas, bottom fishing can disrupt the long-term storage of carbon, making it more important for the climate impact.”
CORROBORATED
Two web_search sources confirm that bottom fishing disrupts long-term carbon storage in carbon-rich areas, increasing its climate impact.
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web search NEUTRAL — The overall climate impact of bottom fishing is the result of these processes and depends strongly on where fishing takes place and on whether carbon is released that would otherwise have remained ...
https://phys.org/news/2026-04-climate-impact-bottom-fishing-…
travel_explore
web search NEUTRAL — The overall climate impact of bottom fishing is the result of these processes and depends strongly on where fishing takes place and on whether carbon is released that would otherwise have remained sto…
https://www.wur.nl/en/news/climate-impact-bottom-fishing-dep…
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web search NEUTRAL — 1 INTRODUCTION Marine sediments are one of the largest long-term carbon sinks on Earth, burying an estimated 0.2-0.3 Pg of carbon per year and playing an essential role in climate regulation (Burdige,…
https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365…
help
“In other areas, it involves carbon that is broken down and converted into CO₂ relatively quickly, and that would also have broken down relatively quickly even without bottom fishing.”
INSUFFICIENT EVIDENCE
No relevant evidence was found after searching for the claim about carbon decomposing quickly regardless of disturbance.
help
“Areas where carbon is stored for long periods are therefore more important from a climate perspective.”
INSUFFICIENT EVIDENCE
No relevant evidence was found after searching for the claim about long-term carbon storage being more climate significant.
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“In the southern part of the North Sea, many sandy sediments are naturally dynamic and have low potential for long-term carbon storage.”
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“In contrast, in the northern part of the North Sea, where finer sediments accumulate and carbon storage is higher, disturbance can have more significant long-term consequences.”
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“Protecting carbon stored in the seabed can contribute to climate policy, but it is not a substitute for reducing fossil fuel emissions.”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.