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Oceana Canada
@oceanacanada.bsky.social
Save the oceans, feed the world. 🐠
Oceana Canada is an independent charity established to restore Canadian oceans to health & abundance.
How Healthy Are Canada’s Fish? 🐟
Fisheries scientist Rebecca Schijns has been crunching the numbers. Oceana Canada’s ninth annual Fishery Audit drops Tuesday, November 25. #WorldFisheriesday
November 21, 2025 at 9:14 PM
Reposted by Oceana Canada
New| A policy agenda for pairing Indigenous knowledge systems & Western-based science to strengthen oceans & fisheries management in Canada 🌊 https://ow.ly/ojcn50Xu6VU

Discover how to better connect Indigenous knowledge & Western science. University of Waterloo, Oceana Canada University of Victoria
November 19, 2025 at 3:20 PM
1/2 A new study published in Proceedings of the National Academy of Sciences @pnas.org reveals ocean plastic is far deadlier than we thought for birds, turtles, and marine mammals.
November 18, 2025 at 9:21 PM
As COP30 gets underway in Belem, Brazil, developing measures to protect the world’s oceans and fisheries must be on the agenda. The key lies in empowering those who have long stewarded these ecosystems: Indigenous and coastal communities.
Learn more: theconversation.com/governments-....
Governments can protect marine environments by supporting small-scale fishing
Nearly 30 per cent of the world’s population lives in coastal areas. A changing climate and biodiversity loss represent an unprecedented threat to these ecosystems.
theconversation.com
November 13, 2025 at 5:17 PM
New research published in @plosone.org after a 16-year study reveals that West Coast transient killer whales are actually two distinct subpopulations — inner and outer coast transient.
Read more: oceanographicmagazine.com/news/new-stu...
New study splits West Coast killer whales into two populations - Oceanographic
Research reveals West Coast transient killer whales are two subpopulations - inner and outer coast - with different diets, ranges, and lives.
oceanographicmagazine.com
November 11, 2025 at 7:39 PM
Every action to protect the ocean matters.
Join Oceana Canada’s community of Wavemakers and help protect the blue that makes all life possible. 💙
👉 Oceana.ca/join
November 9, 2025 at 6:17 PM
Ever seen a dolphin that looks like a flying slug? That’s the Northern right whale dolphin. They are easily recognizable by their sleek, streamlined body and lack of a dorsal fin. They are found in the deep, cold-to-warm temperate waters of the Pacific Ocean.
November 6, 2025 at 9:09 PM
Are seabirds ocean savers? New research published in Nature Reviews Biodiversity finds seabirds help connect ocean ecosystems by moving nutrients from open ocean to islands and back to coastal waters.
Learn more: https://www.earth.com/news/how-saving-seabirds-could-help-save-the-oceans/
How saving seabirds could help save the oceans
Restoring seabirds revives reefs, strengthens fisheries, and reconnects ecosystems from ridge to reef, driving climate recovery.
www.earth.com
November 5, 2025 at 7:42 PM
North Atlantic right whales are nearing extinction. Ship strikes, entanglement, and impacts of climate change threaten their survival. But now, researchers think that human-made noise in the ocean may be having an effect too.
Learn more: www.theglobeandmail.com/podcasts/the...
Whales, extinction and the sounds of underwater noise pollution
There are fewer than 400 North Atlantic right whales in the world
www.theglobeandmail.com
November 4, 2025 at 2:20 PM
New research using environmental DNA (eDNA) led by Loïc Sanchez at the University of Montpellier found that the known ranges of 93% of marine fish species were underestimated.
Learn more: https://www.earth.com/news/marine-dna-uncovers-vast-unseen-ranges-of-ocean-life/
Marine DNA uncovers vast, unseen ranges of ocean life
DNA in seawater revealed that 93% of fish species live beyond known ranges, exposing major gaps in global marine biodiversity records.
www.earth.com
November 3, 2025 at 8:13 PM
Meet the spiny dogfish! One of the most abundant shark species in the ocean. Dogfish are named because fishers have observed these species chasing down smaller fish in dog-like packs.

Learn more: https://oceana.ca/en/marine-life/spiny-dogfish/
November 2, 2025 at 7:40 PM
From Canada’s deep waters lurks the long-nosed chimaera. With a pointed snout, wing-like fins, and tooth plates to crush crabs & shrimp, this ghostly relative of sharks haunts the ocean floor. #SpookyMarineAnimals
October 31, 2025 at 8:53 PM
A decade-long study by @oceannetworks.ca and @uvic.ca found no sign of the bone-devouring “zombie worm” Osedax on sunken whale remains — a disappearance that may signal deep-ocean oxygen loss and ecosystem collapse
Learn more: news.uvic.ca/media-releas...
Where are the zombie worms?   - UVic News
An Ocean Networks Canada supported experiment has revealed the absence of the “bone devourer,” Osedax, on submerged whale bones, bringing scary lessons about climate change and potential species loss.
news.uvic.ca
October 31, 2025 at 7:04 PM
We often think of sea turtles as gentle ocean wanderers, but the inside of a leatherback’s mouth tells a different story. 😳 It’s lined with specialized, cartilage-like protrusions called papillae. These help trap slippery prey, such as jellyfish, so they can be swallowed.
October 30, 2025 at 4:09 PM
Just in time for Halloween, scientists have uncovered a spooky new species: Chondrocladia sp. nov., a carnivorous sponge ominously dubbed the “death-ball,” a predator with hook-like traps. Learn more: oceanographicmagazine.com/news/carnivo...
Carnivorous “death-ball” sponge among new deep-sea species - Oceanographic
Scientists have confirmed 30 previously unknown deep-sea species - among them, a hook-covered carnivorous sponge dubbed the “death-ball.”
oceanographicmagazine.com
October 30, 2025 at 2:49 PM
Reposted by Oceana Canada
More than 400 million tonnes of plastic are produced annually, a number that has been rising sharply

go.nature.com/3Jkce6q
Trust and science: the essential elements missing from plastics treaty talks
A plan to limit plastics pollution globally is in crisis. But disagreements can be resolved with a more formal role for science and more informal spaces for delegates.
go.nature.com
October 28, 2025 at 4:06 PM
Far from the tropics, a spooky visitor sometimes drifts into Canadian waters — the blue angel (Glaucus atlanticus). Floating upside down, this nudibranch hunts the venomous Portuguese man o’ war and stores its toxins for self-defense.
October 29, 2025 at 4:00 PM
Oceana Canada is embarking on a science-driven expedition to study the Southern Newfoundland Slope. Scientists will use deep-sea cameras and eDNA sampling to study habitats that support resilient oceans. Stay tuned for updates! 
October 28, 2025 at 6:39 PM
Deep beneath Canada’s Pacific waters drifts the bloody-belly comb jelly — a glowing marvel of the ocean’s twilight zone! In the deep sea, its radiant shimmer hides it from danger, as red animals appear black, letting it vanish into the darkness.
October 26, 2025 at 7:43 PM
A new study of one of Canada’s most urbanized rivers suggests it dumps the equivalent of about 18 cars worth of microplastics into Lake Ontario every year.
Learn more: https://winnipegsun.com/pmn/this-river-sends-500-billion-microplastics-into-lake-ontario-each-year-study
This river sends 500 billion microplastics into Lake Ontario each year: study
By Jordan Omstead
winnipegsun.com
October 25, 2025 at 9:07 PM
ICYMI: A new estimate from the North Atlantic Right Whale Consortium, released this week, finds the population for critically endangered North Atlantic right whale has increased slightly to 384, based on data collected in 2024.
Learn more: nationtalk.ca/story/latest...
Latest North Atlantic Right Whales Numbers Remain Dire, Underscoring Need to Strengthen Safeguards
October 21, 2025 A new estimate from the North Atlantic Right Whale Consortium released today finds that the population count for critically endangered North Atlantic right whale population has slight...
nationtalk.ca
October 24, 2025 at 12:32 PM
#Breaking: Slight increase in critically endangered North Atlantic right whale population. According to the new estimate, the population is now 384.
Learn more: oceana.ca/en/press-rel...
October 21, 2025 at 2:44 PM
Fish Fact Friday with a spooky twist! Lingcod are fierce ambush predators with a taste for just about anything — rockfish, salmon, even other lingcod.
Learn more: oceana.ca/en/marine-li...
October 17, 2025 at 5:34 PM
A new population survey shows endangered southern resident killer whales are in slow decline. With just 74 remaining, the Center for Whale Research warns the population is slipping toward disappearance without stronger protections.
Learn more: www.cbc.ca/news/canada/...
Southern resident killer whales show signs of slow decline toward disappearance | CBC News
The latest survey of endangered southern resident killer whales confirms their plateau and gradual slide toward disappearance in the absence of stronger measures to protect them, a director with the C...
www.cbc.ca
October 15, 2025 at 12:34 PM
In a major win for marine conservation, the green sea turtle, once heavily exploited for its meat and eggs and driven to the brink of extinction by the 1980s, has been downgraded from Endangered to Least Concern on the IUCN Red List.
Learn more: oceanographicmagazine.com/news/green-s...
Green sea turtle saved from extinction in major conservation victory - Oceanographic
The green sea turtle has been rescued from extinction thanks to forty years of conservation and protection efforts, the IUCN has said.
oceanographicmagazine.com
October 14, 2025 at 3:38 PM