Thousands of Dead Sardines Found Floating in Chile's Queule River
By Orietta Estrada
A massive fish kill in the Queule River Estuary in Chile last week has left fishermen overworked, residents in fear and thousands of tons of dead sardines floating along local shorelines. According to a statement on the website Chile's National Fisheries and Aquaculture Service (SERNAPESCA), the entire area has been declared a human health hazard and the dead sardines have been banned for consumption.
Seven major areas in the estuary have been affected by the sardine die-offs with Playa de Los Piños being hit the hardest. The news comes at a bad time for a region already struggling with stocking its national fisheries. Sardines, along with anchovy, were recently closed to fishing in the country due to low catch numbers. SERNAPESCA estimates that there were several hundred tons of dead fish in the water.
Fisherman Hernan Machua, told El País that 1,000 tons of dead sardines have been scooped out of the water so far and several thousand tons remain. He also added that more help from the government in the clean up efforts was desperately needed.
Last week, SERNAPESCA tweeted images of the massive sardine die-offs. The images were captured during an aerial evaluation of the extent of the fish kill. The evaluation team included the mayor of Queule:
Int @AndresJouannet junto a @sernapesca sobrevuelan zona costera para evaluar situación de peces varados en Queule https://t.co/gpZ6j6ydJv— IntendenciaAraucanía (@IntendenciaAraucanía)1460060712.0
Over the weekend SERNAPESCA tweeted this image of fishermen beginning the removal of the dead fish:
Queule, comienza retiro de masivo varamiento de Sardinas. https://t.co/wEn4JogjSQ— SERNAPESCA (@SERNAPESCA)1460217258.0
Images publicly posted to Facebook from a Queule resident presented an alternative perspective to the clean up efforts:
At this time it is unclear why the fish kill happened, nor is it clear where it originated. It is also unknown if other fish species have been affected. What is clear is that fluctuations in sardine populations are common and occur for several reasons. One reason is hypoxia. Hypoxia is the result of increased primary production in waterways which leads to a decrease in the availability of oxygen, subsequently suffocating marine organisms. Unfortunately, this is not Chile's first time dealing with massive fish kills related to hypoxia.
The country's salmon industry was left reeling last month after harmful algal blooms (HABs) caused massive die-offs. Eutrophication, natural or synthetic fertilization of algae, causes HABs which result in hypoxia. The salmon die-offs slashed 15 percent of Chile's total salmon production totaling around $800 million in economic losses.
Although sardines are not listed as a threatened species, in a food web, their recent-historic population declines have far reaching implications for animals at higher trophic levels—animals like sea lions. This past March, in the U.S., the National Oceanic and Atmospheric Administration (NOAA) reported that low stocks of sardines and anchovy were to blame for starving sea lion pups. Female sea lions were unable to receive proper nutrition due to the scarcity of their staple food source—sardines and anchovy. Therefore, undernourished females were unable to properly feed their own pups.
The struggle to maintain adequate fish stocks in the Chile was echoed this week by the U.S. when the U.S. Pacific Fishery Management Council closed sardine fishing in the Pacific Northwest. This is the second consecutive year that the council has taken this action. Both countries face tremendous obstacles rebuilding their national fisheries. Among those obstacles are overfishing, water pollution and climate change.
Residents in Queule are frustrated with authorities for the slow pace of the clean up, according to Reuters. Health concerns have also been raised as the decomposing fish continue to crowd the shoreline. Euronews reported that a similar incident occurred in the neighboring region of Los Rios last month, but that report is not yet confirmed.
Clean up efforts are ongoing and the environmental impacts are unknown.
YOU MIGHT ALSO LIKE
- Redwoods are the world's tallest trees.
- Now scientists have discovered they are even bigger than we thought.
- Using laser technology they map the 80-meter giants.
- Trees are a key plank in the fight against climate change.
They are among the largest trees in the world, descendants of forests where dinosaurs roamed.
Pixabay / Simi Luft<p><span>Until recently, measuring these trees meant scaling their 80 meter high trunks with a tape measure. Now, a team of scientists from University College London and the University of Maryland uses advanced laser scanning, to create 3D maps and calculate the total mass.</span></p><p>The results are striking: suggesting the trees <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">may be as much as 30% larger than earlier measurements suggested.</a> Part of that could be due to the additional trunks the Redwoods can grow as they age, <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">a process known as reiteration</a>.</p>
New 3D measurements of large redwood trees for biomass and structure. Nature / UCL<p>Measuring the trees more accurately is important because carbon capture will probably play a key role in the battle against climate change. Forest <a href="https://www.wri.org/blog/2020/09/carbon-sequestration-natural-forest-regrowth" target="_blank">growth could absorb billions of tons</a> of carbon dioxide from the atmosphere each year.</p><p>"The importance of big trees is widely-recognised in terms of carbon storage, demographics and impact on their surrounding ecosystems," the authors wrote<a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank"> in the journal Nature</a>. "Unfortunately the importance of big trees is in direct proportion to the difficulty of measuring them."</p><p>Redwoods are so long lived because of their ability to <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">cope with climate change, resist disease and even survive fire damage</a>, the scientists say. Almost a fifth of their volume may be bark, which helps protect them.</p>
Carbon Capture Champions<p><span>Earlier research by scientists at Humboldt University and the University of Washington found that </span><a href="https://www.sciencedirect.com/science/article/pii/S0378112716302584" target="_blank" rel="noopener noreferrer">Redwood forests store almost 2,600 tonnes of carbon per hectare</a><span>, their bark alone containing more carbon than any other neighboring species.</span></p><p>While the importance of trees in fighting climate change is widely accepted, not all species enjoy the same protection as California's coastal Redwoods. In 2019 the world lost the equivalent of <a href="https://www.worldwildlife.org/threats/deforestation-and-forest-degradation" target="_blank" rel="noopener noreferrer">30 soccer fields of forest cover every minute</a>, due to agricultural expansion, logging and fires, according to The Worldwide Fund for Nature (WWF).</p>
Pixabay<p>Although <a href="https://c402277.ssl.cf1.rackcdn.com/publications/1420/files/original/Deforestation_fronts_-_drivers_and_responses_in_a_changing_world_-_full_report_%281%29.pdf?1610810475" target="_blank" rel="noopener noreferrer">the rate of loss is reported to have slowed in recent years</a>, reforesting the world to help stem climate change is a massive task.</p><p><span>That's why the World Economic Forum launched the Trillion Trees Challenge (</span><a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a><span>) and is engaging organizations and individuals across the globe through its </span><a href="https://uplink.weforum.org/uplink/s/uplink-issue/a002o00000vOf09AAC/trillion-trees" target="_blank" rel="noopener noreferrer">Uplink innovation crowdsourcing platform</a><span> to support the project.</span></p><p>That's backed up by research led by ETH Zurich/Crowther Lab showing there's potential to restore tree coverage across 2.2 billion acres of degraded land.</p><p>"Forests are critical to the health of the planet," according to <a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a>. "They sequester carbon, regulate global temperatures and freshwater flows, recharge groundwater, anchor fertile soil and act as flood barriers."</p><p><em data-redactor-tag="em" data-verified="redactor">Reposted with permission from the </em><span><em data-redactor-tag="em" data-verified="redactor"><a href="https://www.weforum.org/agenda/2021/03/redwoods-store-more-co2-and-are-more-enormous-than-we-thought/" target="_blank">World Economic Forum</a>.</em></span></p>
EcoWatch Daily Newsletter
- Offshore Wind Power Is Ready to Boom. Here's What That Means for ... ›
- American Skyscrapers Kill an Estimated 600 Million Migratory Birds ... ›
Kentucky is coping with historic flooding after a weekend of record-breaking rainfall, enduring water rescues, evacuations and emergency declarations.
<div id="0f31c" class="rm-shortcode" data-rm-shortcode-id="4290ab3e7ec4e142f8bce774bab39f03"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366307788155219969" data-partner="rebelmouse"><div style="margin:1em 0">Just got back from my office... downtown Beattyville Kentucky is not a pretty sight. @KySportsRadio… https://t.co/6nXwyMKtRb</div> — Tom Jones (@Tom Jones)<a href="https://twitter.com/8atticus/statuses/1366307788155219969">1614588136.0</a></blockquote></div>
<div class="rm-shortcode" data-rm-shortcode-id="b41a2da6bf23cc19a5f38c2dc6c5f9fc"><div class="fb-post" data-href="https://www.facebook.com/dekalbtnfire/photos/a.924258171004562/3713119618785056/"></div></div>
Spring is coming. And soon, tree swallows will start building nests. But as the climate changes, the birds are nesting earlier in the spring.
- Spring Is Arriving Earlier Across the U.S. - EcoWatch ›
- Climate Change Leading to Fatal Bird Conflicts - EcoWatch ›
- The Unsettling Reason Why We're Seeing More Snowy Owls ... ›
Citigroup will strive to reach net-zero greenhouse gas pollution across its lending portfolio by 2050 and in its own operations by 2030, the investment group announced Monday.
- 20 Attorneys General Launch Climate Fraud Investigation of Exxon ... ›
- Exxon Plans to Increase Its Climate Pollution - EcoWatch ›
- Exxon to Slash 14,000 Jobs Worldwide as Oil Demand Drops ... ›