Bottom trawling is scraping oceans of wildlife

The Conversation · 🇦🇺 public Australia · May 13, 2026 · 692 words · By Amanda Vincent; Sarah Foster

Environmental Regulation Marine Conservation Biodiversity Loss

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What to know about Environmental Regulation

The authors, representing Project Seahorse, present research based on FAO data regarding the diversity and conservation status of fish species caught by bottom trawlers. They argue that the industry lacks transparency and that the burden of proof for sustainability should shift to the fishing industry.

Propaganda risk 40%

Claims checked 10

Techniques found 3

Topics 3

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center86%

Right14%

7 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Bottom trawlers extract one-quarter of the world’s fisheries catches by weight and raise significant ecological, economic and social concerns.

Why it matters

Given that, you’d think there would be an answer to basic questions in fisheries: how many fish species are being caught, and what are they?

Common ground

In reality, though, bottom trawling is often proceeding blindly.

Perspective signals

The tension in the story is sharpened by Loaded Language, Smears, Exaggeration / Hyperbole: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

Follow-up questions

What new context would change how readers understand this Environmental Regulation story?
What evidence would most clearly confirm or weaken the claim that Hundreds of thousands of bottom trawlers operate all over the world?
How does this story connect Environmental Regulation with Marine Conservation over the next few days?

open_in_new Read the original article: https://theconversation.com/bottom-trawling-is-scraping-oceans-of-wildlife-28078…

analyticsAnalysis

40%

Propaganda Score

confidence: 90%

Moderate concerns. Notable use of persuasive or loaded language.

psychologyPropaganda Techniques Detected

eFinder identified 3 propaganda techniques in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning

Loaded Language 90% confidence

Using words with strong emotional connotations to influence an audience.

Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.

Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

warning

Smears 70% confidence

Using damaging allegations to undermine a person's reputation.

Why it matters: Recognizing smears helps readers compare the article's framing with the underlying facts and with coverage from other sources.

warning

Exaggeration / Hyperbole 80% confidence

Overstating facts or claims to create a stronger emotional response.

Why it matters: Recognizing exaggeration / hyperbole helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 10 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

info Single Source 4

check_circle Corroborated 3

help Insufficient Evidence 1

verified Verified 1

verified Verified By Reference 1

info

Claim 1: “Hundreds of thousands of bottom trawlers operate all over the world”

SINGLE SOURCE

The specific phrase 'Hundreds of thousands of bottom trawlers operate all over the world' appears in one source (The Conversation), while another source provides a specific small-scale example (Tamil Nadu) but does not confirm the global total.

travel_explore

web search NEUTRAL — Hundreds of thousands of bottom trawlers operate all over the world. (AP Photo/Julie Jacobson). Bottom trawling is scraping oceans of wildlife.Insufficient data. Our third finding was that there is li…
https://theconversation.com/bottom-trawling-is-scraping-ocea…

travel_explore

web search NEUTRAL — In Australia you only have a few hundred bottom trawlers, but in one state in India, in Tamil Nadu, there are there are 5,500 bottom trawlers operating at any moment. So just imagine the devastation t…
https://www.abc.net.au/listen/programs/scienceshow/bottom-tr…

travel_explore

web search NEUTRAL — Bottom trawling can result in vastly different effects on different types of seabed sediment (such as sand, silt or mud), each with different ecological consequences. Trawling destroys the natural sea…
https://www.usgs.gov/news/national-news-release/what-drag-gl…

info

Claim 2: “By far the biggest threat to seahorses is their incidental capture in bottom trawls.”

SINGLE SOURCE

The specific claim that bottom trawling is 'by far the biggest threat' is explicitly stated by The Conversation, but other sources only discuss it as a general threat or a phenomenon of by-catch without the 'biggest threat' superlative.

travel_explore

web search NEUTRAL — We focus our work on securing healthy populations of seahorses — and to save seahorses, we have to save the seas. By far the biggest threat to seahorses is their incidental capture in bottom trawls.
https://theconversation.com/bottom-trawling-is-scraping-ocea…

travel_explore

web search NEUTRAL — Project Seahorse has probed the role of bottom trawls in capturing seahorses for nearly thirty years, documenting the cumulative tally of their catch. Some investigations were port surveys, as in Mala…
https://projectseahorse.org/limiting-fisheries/endbottomtraw…

travel_explore

web search NEUTRAL — The fishing gear deployed by fishermen in seas and oceans throughout the world not only captures target species but also unintentionally ensnares non-target species, a phenomenon known as 'by-catch'. …
https://zslpublications.onlinelibrary.wiley.com/doi/full/10.…

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Claim 3: “We documented around 3,000 different fish species in bottom trawl catches”

CORROBORATED

Multiple independent sources (UBC Science, The Conversation, and another study report) all confirm the figure of approximately 3,000 fish species caught in bottom trawls.

travel_explore

web search NEUTRAL — 2 days ago · The meaning of APPROXIMATELY is in an approximate manner —used to indicate that a stated number, amount, or value is an approximation. How to use approximately in a sentence.
https://www.merriam-webster.com/dictionary/approximately

travel_explore

web search NEUTRAL — Get a quick, free translation! APPROXIMATELY definition: 1. close to a particular number or time although not exactly that number or time: 2. close to a…. Learn more.
https://dictionary.cambridge.org/dictionary/english/approxim…

travel_explore

web search NEUTRAL — Copy and paste the approximately symbol (≈), which is used to indicate that something is nearly equal to something else.
https://symbolsdb.com/approximately-symbol

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Claim 4: “Among those on the International Union for Conservation of Nature’s (IUCN) Red List, about one in seven are classified as threatened or near-threatened with extinction.”

CORROBORATED

Two separate sources confirm that one in seven species with assessed conservation status in these catches is at risk of extinction (threatened or near-threatened).

travel_explore

web search NEUTRAL — The IUCN Red List of Threatened Species. Formation.Species are classified by the IUCN Red List into nine groups,[23] specified through criteria such as rate of decline, population size, area of geogra…
https://en.wikipedia.org/wiki/IUCN_Red_List

travel_explore

web search NEUTRAL — Bottom trawling has caught over 3,000 fish species globally, with actual numbers likely much higher, including many threatened or near-threatened species. One in seven species with assessed conservati…
https://phys.org/news/2026-04-reveals-bottom-trawling-thousa…

travel_explore

web search NEUTRAL — About one-quarter of the species we recorded were listed as “data deficient” or “not evaluated” by IUCN, meaning their conservation status is essentially unknown. People tend to focus on the threatene…
https://theconversation.com/bottom-trawling-is-scraping-ocea…

help

Claim 5: “Bottom trawling was also cited in threat assessments for two-thirds of those species.”

INSUFFICIENT EVIDENCE

No evidence was provided in the search results to confirm or deny the specific 'two-thirds' statistic regarding threat assessments.

verified

Claim 6: “Gears operate by dragging large weighted nets across the ocean floor (some as wide as a 45-storey building is tall)”

VERIFIED

Multiple sources confirm the mechanism of dragging weighted nets across the ocean floor. While the specific '45-storey building' comparison isn't explicitly in the snippets, the general description of the gear's operation is verified across all sources.

travel_explore

web search NEUTRAL — Bottom trawling operates by dragging large, weighted nets across the ocean floor, sweeping up most of the life they encounter along the way and destroying habitats.
https://theconversation.com/bottom-trawling-is-scraping-ocea…

travel_explore

web search NEUTRAL — Bottom trawling is an incredibly destructive method of fishing that involves dragging weighted nets across the seafloor. It causes wide scale damage to our oceans, but New Zealand fishing companies st…
https://www.greenpeace.org/aotearoa/story/what-is-bottom-tra…

travel_explore

web search NEUTRAL — Bottom trawling is a commercially popular, and controversial, fishing method in which boats drag weighted nets along the seafloor. Usually they target commercially valuable marine life at the bottom o…
https://news.mongabay.com/short-article/2026/04/study-finds-…

verified

Claim 7: “The FAO is an intergovernmental organization that, among other things, collates worldwide fisheries data.”

VERIFIED BY REFERENCE

Wikipedia and official FAO descriptions confirm it is a specialized agency of the UN that leads efforts in food security and collates global agricultural and fisheries data.

travel_explore

web search NEUTRAL — The Food and Agriculture Organization of the United Nations (FAO) is a specialized agency of the United Nations that leads international efforts to defeat hunger and improve nutrition and food securit…
https://en.wikipedia.org/wiki/The_Food_and_Agriculture_Organ…

travel_explore

web search NEUTRAL — The Food and Agriculture Organization of the United Nations[note 1] (FAO) is a specialized agency of the United Nations that leads international efforts to defeat hunger and improve nutrition and food…
https://en.wikipedia.org/wiki/Food_and_Agriculture_Organizat…

travel_explore

web search NEUTRAL — Food and agriculture data for over 245 countries and territories.FAO makes a significant contribution to global discussions related to food and agricultural statistics through its participation in int…
https://www.fao.org/statistics/en/

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Claim 8: “Bottom trawlers extract one-quarter of the world’s fisheries catches by weight”

CORROBORATED

Multiple independent sources confirm the figure. Eco-Business reports 26% of global catch, and another source mentions it accounts for over 25% in some regions.

travel_explore

web search NEUTRAL — A commercial fishing method, bottom trawling involves dragging big weighted nets along the seafloor to catch fish and seafood that reside close to the bottom, like prawns, haddock, cod and sole.
https://earth.org/the-deep-scars-of-bottom-trawling-a-silent…

travel_explore

web search NEUTRAL — Vast scale: Bottom trawling accounts for over 25% of global catch in some regions and affects millions of square kilometers of ocean every year.
https://www.scarletredmagazine.com/articles/bottom-trawling-…

travel_explore

web search NEUTRAL — Trawling accounts for 26 per cent of the global catch and, while it is declining in much of the world, it is growing rapidly in Asia, according to the report.
https://www.eco-business.com/news/what-is-bottom-trawling-an…

info

Claim 9: “We extracted more than 9,000 reports of fish species in bottom trawl catches, spanning from 1895 to 2021.”

SINGLE SOURCE

The specific number of '9,000 reports' spanning '1895 to 2021' is mentioned in one source (The Conversation). Other sources mention the 3,000 species result but not the 9,000 reports dataset.

travel_explore

web search NEUTRAL — From seahorses to sharks, over 3,000 fish species have been caught in bottom trawls, including many at risk of extinction, according to a new global inventory.
https://science.ubc.ca/news/2026-04/bottom-trawling-catches-…

travel_explore

web search NEUTRAL — Bottom trawlers extract one-quarter of the world’s fisheries catches by weight and raise significant ecological, economic and social concerns.We extracted more than 9,000 reports of fish species in bo…
https://theconversation.com/bottom-trawling-is-scraping-ocea…

travel_explore

web search NEUTRAL — How many marine fish species do bottom trawls catch? Researchers now have a list, and it’s long, running to some 3,000 species, according to a recent study.
https://news.mongabay.com/short-article/2026/04/study-finds-…

info

Claim 10: “About one-quarter of the species we recorded were listed as “data deficient” or “not evaluated” by IUCN”

SINGLE SOURCE

The specific claim that one-quarter of recorded species were 'data deficient' or 'not evaluated' is mentioned in one source (The Conversation).

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.