Watch Out for Camouflaged Sharks
Round scads, small silvery fish, have made friends with a pretty big predator: the sand tiger shark. Scientists observed the toothy shark hiding among scads to launch undercover attacks.
Read all about it: https://hakaimagazine.com/news/watch-out-for-camouflaged-sharks/
Video courtesy of Erin Burge/Sharkcam
Louisiana By and Bye
The future of the Mississippi River Delta and coastal Louisiana as a whole is far from being on solid ground. A football field–sized portion of wetland vanishes into open water every 100 minutes.
Off the state’s southeast coast sits a blip of land called Queen Bess Island. Despite losing nearly 90 percent of its original footprint since the 1950s due to erosion and hurricanes, Queen Bess provides habitat for more than 60 bird species, including royal terns, tricolored herons, and great egrets.
But it’s Louisiana’s state bird, the brown pelican, that makes Queen Bess special. The island, along with two others, supports 70 percent of the brown pelican population in the state; yet without recent restoration efforts, the nesting habitat would have disappeared completely.
Using fines from the Deepwater Horizon oil spill, which decimated millions of creatures in coastal Louisiana more than 10 years ago, the state has been rebuilding barrier islands, starting with Queen Bess.
The restoration work has a human focus—the primary intent is to protect the shoreline for future generations of Louisianans—but helps stabilize breeding habitats for the brown pelican in the process.
Will the pelicans thrive on their restored island, giving hope to the millions of people living on Louisiana’s coastline who are likewise in danger of being displaced?
Producers/Directors/Editors: Ryan Jones and Alyson Larson
Camera operators: Long Duong, Ryan Jones, Alyson Larson
Hakai Magazine producer: Katrina Pyne
Additional footage: Fenstermaker and LDWF
Special thanks: Louisiana Department of Wildlife and Fisheries and LSU Center for River Studies
#CCNow Covering Climate Now Louisiana Coastal Protection and Restoration Authority Restore the Mississippi River Delta
Letting Carbon Sink with the Fishes
When animals such as fish die at sea, most of the bodies fall to the seabed. This movement channels some carbon out of the upper ocean and sequesters it in the deep for hundreds, even thousands, of years. But what if the fish is caught instead? 🎣
Researchers at Université de Montpellier in France studied global catches of rays, tuna, billfish, and sharks from 1950 to 2014. Using the sheer biomass of all those large fish, they calculated the quantity of carbon that has ended up in the atmosphere. How much carbon would have been stored in the seabed if the fish had remained in the ocean? Watch the video to find out! 👀
La crisis de la Pajarada
En la Patagonia, las aves marinas y los pescadores artesanales de merluza tienen una relación de larga data. Los pescadores industriales, no tanto, y no es bueno para las aves.
La reciprocidad es una práctica arraigada en el equilibrio, presente en muchas culturas a través de los milenios y frecuentemente asociada al respeto y a la sustentabilidad. “Entrega una ofrenda en reciprocidad por lo que has tomado. Sostén a aquellos que te sostienen y la tierra se mantendrá para siempre” dice Robin Wall Kimmerer, autora del libro “Una Trenza de Hierba Sagrada”.
La reciprocidad es también el objeto de estudio de Jaime Ojeda, estudiante del doctorado en la Universidad de Victoria, que vive actualmente en Punta Arenas.
Específicamente, Ojeda observa la relación entre los pescadores artesanales del Estrecho de Magallanes en la Patagonia Chilena y las bandadas de aves marinas que ellos persiguen para encontrar los cardúmenes de merluza –un pariente cercano del bacalao- que están en las profundidades.
Como agradecimiento a la orientación recibida, los pescadores artesanales alimentan a las aves marinas con las vísceras de los pescados capturados. Esas vísceras se han convertido en un componente clave de su dieta, especialmente para el albatros de ceja negra. La relación recíproca se encuentra en el corazón de esta pesquería tradicional, con pescadores de edad avanzada y escasa transferencia generacional de este saber popular.
En Patagonia, la merluza fue alguna vez lo mismo que el bacalao en el este de Canadá, un plato al alcance de todos que frecuentemente constituía la cena. Pero la misma historia –la sobrepesca- ha representado una herida profunda para la pesca. A pesar del sistema de cuotas implementada en 2001 por el gobierno de Chile, que favoreció la pesca industrial por sobre la artesanal, ha contribuido muy poco a la producción. Por el contrario, el sistema de cuotas favoreció una ola de pesca ilegal.
Así como sucedió con el ba
Plight of the Pajarada
In Patagonia, seabirds and artisanal hake fishers have a long-established relationship. Industrial fishers, not so much—and it’s not good for the birds.
Reciprocity is a practice ingrained in balance, seen across many cultures over millennia, and often associated with respect and sustainability. “Give a gift, in reciprocity for what you have taken. Sustain the ones who sustain you and the earth will last forever,” says author Robin Wall Kimmerer in her book Braiding Sweetgrass.
Reciprocity is also the subject of interest for Jaime Ojeda, a graduate student at the University of Victoria (UVic) in British Columbia, who is based in Punta Arenas, Chile.
Specifically, Ojeda is looking at the relationship between the artisanal hake fishers of the Strait of Magellan in Chilean Patagonia and the flocks of seabirds they follow to find schools of hake—a close relative of cod—deep below the surface.
As thanks for the guidance they receive, the artisanal hake fishers feed the seabirds surrounding their boat with offal from the caught fish. Offal has become a key component of their diet, especially for the black-browed albatross.
This reciprocal relationship is at the heart of the traditional fishery, which has aging fishers and little generational transfer of knowledge.
In Patagonia, hake was once like cod in eastern Canada, an affordable dish that graced dinner plates frequently. But the same old story—overfishing—has hit the hake fishery hard. Even a quota system put in place by the Chilean government in 2001, which favored the industrial fleet over the artisanal fishery, has done little to help the industry. Mostly, the quota system has led to a wave of illegal fishing.
Much like what happened to Canadian cod, depleted hake stocks have resulted in high prices and more hake fishers selling their quotas to the industrial fishers. The artisanal fishers are turning away from their craft and their children are moving on to other trades, often salmon farm
Congrats to writers Jude Isabella, Brendan Borrell, Brian Payton, Paul Tullis, Jess Mackie, and Shannon Hunt for winning an award from Society of Environmental Journalists for reporting on the environment! 🎉
Follow this link to read all of their stories in the award-winning collection “Big Fish: The Aquacultural Revolution”: https://hakaimagazine.com/features/big-fish-the-aquacultural-revolution/…
The Sound Aquatic: The Ocean and the Anthropause
🔊 SOUND ON! 🔊 Podcast host Elin Kelsey introduces our new five-part series, The Sound Aquatic: The Ocean and the Anthropause, coming May 25.
Listen in on animal communication, underwater soundscapes, and the unexpected quiet triggered by the COVID-19 pandemic. 🐋
Learn more and subscribe on your favorite podcast app: https://www.hakaimagazine.com/the-sound-aquatic/
Illustration: Mercedes Minck
Animation: Katrina Pyne
To Speak of the Sea in Irish
Hounds in the sky, flowers on the waves—traditional Irish words have both a sense of poetry and interconnectedness with the sea.
Early last year, Manchán Magan began collecting these words from towns along the west coast of Ireland—before they disappeared.
For #StPatricksDay, enjoy Claudia Geib's beautiful story about Magan's Sea Dictionary project, with accompanying animations by Aurélie Beatley:
➡️ https://www.hakaimagazine.com/article-short/to-speak-of-the-sea-in-irish/
A Window into the Lives of Resident Killer Whales
From the Gikumi research vessel, the UBC Marine Mammal Research Unit and the Hakai Institute headed out on the Salish Sea and off the central coast of British Columbia to study the foraging behaviors of resident killer whales.
Killer whales live for decades in groups, passing down knowledge. But some whales are at risk of being lost for good due to water and noise pollution, increased shipping traffic, and a shrinking food supply.
Southern residents, classified as endangered, are especially at risk. Researchers hope this study could lead to solutions to help these whales.
Research conducted under DFO and UBC animal care permit (XMMS 6 2019 & A19-0053)
Produced by Katrina Pyne and Meigan Henry
Edited by Meigan Henry
Videography by Keith Holmes and Sarah Fortune
Additional videography by Grant Callegari and Eiko Jones
Coral Versus Climate
Although the hard corals making up a reef can be tough, they’re built of delicate individuals. The tiny coral polyps that are the living parts of a reef are exquisitely sensitive to the ocean around them. Which is why when it comes to climate change, the prognosis for corals is generally grim.
Can they make it in tomorrow’s hot, turbulent, acidic ocean?
Around the world, scientists are studying corals in the field. Read the new visual story Coral Versus Climate, by Amorina Kingdon, to learn what we know—and what we don’t—about how corals have responded to climate change so far: https://www.hakaimagazine.com/videos-visuals/coral-versus-climate/.
It's Time to Listen
The onset of COVID-19 created devastation worldwide. But for whale researchers like Janie Wray, who has been studying the unique calls of killer, humpback, and fin whales in British Columbia for more than 20 years, the pandemic presented a unique opportunity—a chance to hear how whales respond to a quieter underwater world.
Presented with an entire summer free of cruise ship noise due to COVID-19 restrictions, Wray, the lead researcher for BC Whales and the CEO of the nonprofit North Coast Cetacean Society, seized the moment to partner with her colleagues Paul Spong and Helena Symonds at OrcaLab to hear how whales communicate when the underwater landscape is free from the chugging, droning, and ear-splitting sounds of cruise ships.
#marinemammals #orcas #whales #underwateracoustics
OrcaLab BCWhales Wild Bus Films Hakai Institute Tavish Campbell Coastal Photography
The Ochre Sea Star
Don't be fooled by their cheery purple and orange colors—ochre sea stars are voracious predators. To consume their prey, these sea stars pry mussels open, insert their stomach between the shells, and liquify the bivalve's insides.
Don't believe us? Watch this video to see for yourself—if you dare!
The Extravagant Pageantry of Nudibranchs
Nudibranchs are named for their naked gills, but these sea slugs aren't shy. Dive into the colorful and extravagant world of nudibranch—and their killer looks—in this mesmerizing video.
Hakai Magazine's 5th Birthday!
We went live for our 5th birthday. Here's a recording. Thanks again everyone who joined us, we had so much fun!
Happy Earth Day/Hakai birthday!
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We're going live (https://www.facebook.com/hakaimagazine/) today at 1 pm PT (UTC-7), for our 5th birthday check-in with Jude, our editor in chief. Join in and check out her silly hat. Ask us a question or send a comment. Hope to see you there!
Catch Me If You Can: The Global Pursuit of a Fugitive Ship
This rogue ship managed to fish illegally for years because its captain had a knack for outrunning the law. Follow this cat and mouse game, and read our article, Catch Me If You Can, at this link: https://www.hakaimagazine.com/features/catch-me-if-you-can/
Oil Spills from Sunken Ships