Death of 1 Million Seabirds Tied to Massive ‘Blob’ of Hot Water in the Pacific

An expanse of uncommonly warm seawater in the Pacific Ocean created by a marine heatwave led to a mass die-off of one million seabirds, scientists have found.
According to a study published in PLOS One by the University of Washington, the marine heatwave began in 2013, and grew stronger between 2015-2016 due to irregular conditions from the weather phenomenon El Niño.
The heatwave created a patch of much warmer seawater in the northeastern Pacific that stretched for 1,000 miles — parts of which reached temperatures 10.8 degrees Fahrenheit higher than usual, CNN reported.
Researchers termed it "the blob."
As the blob reached its peak between mid-2015 and 2016, more than 62,000 common murres — a species of seabird that feeds on small fish and is common up and down the west coast of North America — washed up dead on the shores of California, Oregon, Washington and Alaska, The Guardian reported.
The researchers believe that the murres likely died of starvation after the blob increased competition for the small fish they feed on, The BBC reported. And because most birds that die over the ocean never wash ashore, the researchers believe the die-off reached closer to an unprecedented one million common murres.
Larger fish such as salmon, cod and halibut rely on the same prey as the murres. But since fish are cold-blooded and can't self-regulate their body temperature, the warmer waters boosted their metabolic rate and the amount of energy they needed for survival. These conditions required the larger fish to eat more than normal, reducing the availability of prey for the murres, which typically need to eat the equivalent of half their body weight per day.
The resulting die-off was among the largest on record, the researchers said. Most of the birds washed ashore in Alaska, where they were found in densities reaching 4,600 carcasses per kilometer along part of the state's southern coast.
The murre population was so affected that by 2016, 12 breeding colonies had failed to produce any chicks and the population still hasn't replenished, The Guardian reported.
"It remains to be seen when (or whether) murre populations in Alaska will recover from the heatwave in light of predicted global warming trends and the associated likelihood of more frequent heatwaves," the researchers said. According to the United Nations, climate change is projected to make marine heatwaves more frequent.
The University of Washington team has already found another marine heatwave developing off the coast of Washington, while another closer to New Zealand has reached 4,000 square miles and can be detected from space, CNN reported.
The blob caused die-offs in several other animal populations as well, including sea lions, baleen whales and tufted puffins. These die-offs were likely due in part to a drop in the populations of plankton that feed many organisms in the food chain, as the warmer water has less oxygen and essential nutrients to support life, USA Today reported.
The warmer temperatures also spawned the largest harmful algal bloom in recorded history, which contributed to the die-offs and led to significant financial losses for fisheries in the affected area — though none of the losses reached the severity of the murre die-off.
"The magnitude and scale of this failure has no precedent," lead author John Piatt, a research biologist and an affiliate professor at the University of Washington, said in a press release. "It was astonishing and alarming, and a red-flag warning about the tremendous impact sustained ocean warming can have on the marine ecosystem."
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By Daisy Simmons
In a wildfire, hurricane, or other disaster, people with pets should heed the Humane Society's advice: If it isn't safe for you, it isn't safe for your animals either.
1. Stay Informed
<p>A first order of business in pet evacuation planning is to understand and be ready for the possible threats in your area. Visit <a href="https://www.ready.gov/be-informed" target="_blank">Ready.gov</a> to learn more about preparing for potential disasters such as floods, hurricanes, and wildfires. Then pay attention to related updates by tuning <a href="http://www.weather.gov/nwr/" target="_blank">NOAA Weather Radio</a> to your local emergency station or using the <a href="https://www.fema.gov/mobile-app" target="_blank">FEMA app</a> to get National Weather Service alerts.</p>2. Ensure Your Pet is Easily Identifiable
<p><span>Household pets, including indoor cats, should wear collars with ID tags that have your mobile phone number. </span><a href="https://www.avma.org/microchipping-animals-faq" target="_blank" rel="noopener noreferrer">Microchipping</a><span> your pets will also improve your chances of reunion should you become separated. Be sure to add an emergency contact for friends or relatives outside your immediate area.</span></p><p>Additionally, use <a href="https://secure.aspca.org/take-action/order-your-pet-safety-pack" target="_blank" rel="noopener noreferrer">'animals inside' door/window stickers</a> to show rescue workers how many pets live there. (If you evacuate with your pets, quickly write "Evacuated" on the sticker so first responders don't waste time searching for them.)</p>3. Make a Pet Evacuation Plan
<p> "No family disaster plan is complete without including your pets and all of your animals," says veterinarian Heather Case in <a href="https://www.youtube.com/watch?v=Q9NRJkFKAm4" target="_blank">a video</a> produced by the American Veterinary Medical Association.</p><p>It's important to determine where to take your pet in the event of an emergency.</p><p>Red Cross shelters and many other emergency shelters allow only service animals. Ask your vet, local animal shelters, and emergency management officials for information on local and regional animal sheltering options.</p><p>For those with access to the rare shelter that allows pets, CDC offers <a href="https://www.cdc.gov/healthypets/emergencies/pets-in-evacuation-centers.html" target="_blank">tips on what to expect</a> there, including potential health risks and hygiene best practices.</p><p>Beyond that, talk with family or friends outside the evacuation area about potentially hosting you and/or your pet if you're comfortable doing so. Search for pet-friendly hotel or boarding options along key evacuation routes.</p><p>If you have exotic pets or a mix of large and small animals, you may need to identify multiple locations to shelter them.</p><p>For other household pets like hamsters, snakes, and fish, the SPCA recommends that if they normally live in a cage, they should be transported in that cage. If the enclosure is too big to transport, however, transfer them to a smaller container temporarily. (More on that <a href="https://www.spcai.org/take-action/emergency-preparedness/evacuation-how-to-be-pet-prepared" target="_blank" rel="noopener noreferrer">here</a>.)</p><p>For any pet, a key step is to establish who in your household will be the point person for gathering up pets and bringing their supplies. Keep in mind that you may not be home when disaster strikes, so come up with a Plan B. For example, you might form a buddy system with neighbors with pets, or coordinate with a trusted pet sitter.</p>4. Prepare a Pet Evacuation Kit
<p>Like the emergency preparedness kit you'd prepare for humans, assemble basic survival items for your pets in a sturdy, easy-to-grab container. Items should include:</p><ul><li>Water, food, and medicine to last a week or two;</li><li>Water, food bowls, and a can opener if packing wet food;</li><li>Litter supplies for cats (a shoebox lined with a plastic bag and litter may work);</li><li>Leashes, harnesses, or vehicle restraints if applicable;</li><li>A <a href="https://www.avma.org/resources/pet-owners/emergencycare/pet-first-aid-supplies-checklist" target="_blank">pet first aid kit</a>;</li><li>A sturdy carrier or crate for each cat or dog. In addition to easing transport, these may serve as your pet's most familiar or safe space in an unfamiliar environment;</li><li>A favorite toy and/or blanket;</li><li>If your pet is prone to anxiety or stress, the American Kennel Club suggests adding <a href="https://www.akc.org/expert-advice/home-living/create-emergency-evacuation-plan-dog/" target="_blank" rel="noopener noreferrer">stress-relieving items</a> like an anxiety vest or calming sprays.</li></ul><p>In the not-unlikely event that you and your pet have to shelter in different places, your kit should also include:</p><ul><li>Detailed information including contact information for you, your vet, and other emergency contacts;</li><li>A list with phone numbers and addresses of potential destinations, including pet-friendly hotels and emergency boarding facilities near your planned evacuation routes, plus friends or relatives in other areas who might be willing to host you or your pet;</li><li>Medical information including vaccine records and a current rabies vaccination tag;</li><li>Feeding notes including portions and sizes in case you need to leave your pet in someone else's care;</li><li>A photo of you and your pet for identification purposes.</li></ul>5. Be Ready to Evacuate at Any Time
<p>It's always wise to be prepared, but stay especially vigilant in high-risk periods during fire or hurricane season. Practice evacuating at different times of day. Make sure your grab-and-go kit is up to date and in a convenient location, and keep leashes and carriers by the exit door. You might even stow a thick pillowcase under your bed for middle-of-the-night, dash-out emergencies when you don't have time to coax an anxious pet into a carrier. If forecasters warn of potential wildfire, a hurricane, or other dangerous conditions, bring outdoor pets inside so you can keep a close eye on them.</p><p>As with any emergency, the key is to be prepared. As the American Kennel Club points out, "If you panic, it will agitate your dog. Therefore, <a href="https://www.akc.org/expert-advice/home-living/create-emergency-evacuation-plan-dog/" target="_blank" rel="noopener noreferrer">pet disaster preparedness</a> will not only reduce your anxiety but will help reduce your pet's anxiety too."</p>Evacuating Horses and Other Farm Animals
<p>The same basic principles apply for evacuating horses and most other livestock. Provide each with some form of identification. Ensure that adequate food, water, and medicine are available. And develop a clear plan on where to go and how to get there.</p><p>Sheltering and transporting farm animals requires careful coordination, from identifying potential shelter space at fairgrounds, racetracks, or pastures, to ensuring enough space is available in vehicles and trailers – not to mention handlers and drivers on hand to support the effort.</p><p>For most farm animals, the Red Cross advises that you consider precautionary evacuation when a threat seems imminent but evacuation orders haven't yet been announced. The American Veterinary Medical Association has <a href="https://www.avma.org/resources/pet-owners/emergencycare/large-animals-and-livestock-disasters" target="_blank">more information</a>.</p>Bottom Line: If You Need to Evacuate, So Do Your Pets
<p>As the Humane Society warns, pets left behind in a disaster can easily be injured, lost, or killed. Plan ahead to make sure you can safely evacuate your entire household – furry members included.</p>- 5 Ways to Be an Eco-Friendly Pet Owner - EcoWatch ›
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