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Mary-Anne Lea

@pelagicblue.bsky.social
295 followers 625 following 34 posts

Marine and polar predator ecology Sharing scientific and behavioural discoveries across our global, connected oceans

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Mary-Anne Lea @pelagicblue.bsky.social · 21/09/2026
New detections of bird flu in Australian pinnipeds
abc.net.au
H5 bird flu found in four sea lions, including a pup, on SA islands
There has also been a mass mortality event involving crested terns on the same South Australian islands, with about 900 of the birds found dead.
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ABC News Australia @news.abc.net.au · 07/09/2026
Animal welfare claim launched against Tasmanian salmon industry by Animals Australia
abc.net.au
Animal welfare claim launched against Tasmanian salmon industry
A request for an immediate investigation into salmon industry practices has been made to Biosecurity Tasmania regarding possible breaches to the state's Animal Welfare Act.
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Mary-Anne Lea @pelagicblue.bsky.social · 23/08/2026
A somber day as the first marine mammal bird flu death reported for mainland Australia in a long-nosed fur seal.
theguardian.com
Fur seal’s death marks first Australian mainland mammal fatality from spreading H5 bird flu strain
Seal found dead at Beachport in South Australia presages ‘significant losses’, minister warns
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Mary-Anne Lea @pelagicblue.bsky.social · 18/08/2026
theconversation.com
Australia needs more people who think like scientists. Here’s what that means
Science equips us with the tools to reason, evaluate evidence, and make informed decisions in a complex, changing world.
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Mary-Anne Lea @pelagicblue.bsky.social · 14/08/2026
#Firstdogonthemoon helps us navigate the grief and distress of bird flu arrival and impacts in Australia. @theguardian.com
theguardian.com
Bird flu is a huge disaster and it’s normal to find it distressing and sad. How can we deal with this grief? | First Dog on the Moon
Firstly you can just grieve – it’s not your fault because you used a plastic straw that one time
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Met4Cast @met4cast.net · 13/08/2026
Sub-surface temperatures in the Pacific are shockingly warm with anomalies as much as 8-9°C above normal. Strong westerly wind burst events will continue to develop this growing warm pool, leading to the record breaking El Niño event later this year.
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Mary-Anne Lea @pelagicblue.bsky.social · 13/08/2026
First case of H5N1 bird flu detected in Tasmania.
abc.net.au
Tasmania confirms first case of deadly bird flu strain H5N1
The first confirmed case of the deadly H5N1 bird flu that has impacted wildlife across five other Australian states has been detected in Tasmania.
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Mary-Anne Lea @pelagicblue.bsky.social · 12/08/2026
Maternal tool use and the transfer of knowledge to their calves.
theconversation.com
Dolphins learn how to use tools to hunt for fish from their mothers
Tool use among non-human animals is more widespread than you might think.
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Mary-Anne Lea @pelagicblue.bsky.social · 30/07/2026
Remarkable drone footage of humpback whale birth in NSW!
abc.net.au
Drone captures rare video of 'magical' whale birth
A drone operator has captured video of a humpback whale giving birth, one of only a handful of people to film the phenomenon.
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Mary-Anne Lea @pelagicblue.bsky.social · 10/07/2026
“The environment may now be changing at a pace or in ways that is testing the time-honored ability of the population to rapidly rebound while it adjusts to a new ecological regime,” Weller said. @theguardian.com
theguardian.com
Pacific gray whales facing ‘catastrophic’ die-off as climate crisis hits food supply
Trump administration urged to relist a species in ‘very, very serious trouble’ under Endangered Species Act
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Mary-Anne Lea @pelagicblue.bsky.social · 24/06/2026
Neil the seal is back bigger than ever and that’s a problem for his wellbeing @abc-news.bsky.social
abc.net.au
Neil the seal is back bigger than ever and that's a problem
Neil, an elephant seal well known to Tasmanians, has returned to land and a new video shows him being coerced off a road for his own safety.
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Mary-Anne Lea @pelagicblue.bsky.social · 08/06/2026
“We are learning to see biodiversity in higher resolution.” Dr Jane Younger @theconversation.com
theconversation.com
Hidden in plain sight: the race to discover new species before they’re gone
Even now, in an age of satellites and genome sequencing, the Earth still holds secrets.
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Mary-Anne Lea @pelagicblue.bsky.social · 21/05/2026
A new collaborative study challenges our current thinking of penguin speciation. Daly Noll, Jane Younger & co-authors put forward the case for four species of Gentoo #penguins across the Southern Ocean with significant implications for future #conservation management. #Antarctica @news.abc.net.au
abc.net.au
They’re black, white and very cute. But not all gentoo penguins are the same
Gentoo penguins were thought to be a standalone species, but a new study says there are four distinct species — and it could lead to better conservation plans.
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Jack Cousteau ⚓️ @angrywaterman.bsky.social · 20/05/2026
apnews.com/article/hump... "It’s a very rare event, but it is a really wonderful demonstration of just how wide-ranging these animals are."
apnews.com
Two humpback whales set records swimming between Australia and Brazil
Two humpback whales have made record-breaking crossings between Australia and Brazil. Scientists say the whales were identified by their distinctive tail markings and traveled about 9,000 miles.
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Lily Dove @solilyquy.bsky.social · 04/05/2026
🌊 New paper alert! For the first time from space, two NASA missions enable us to observe plankton community composition alongside the physical processes that structure it. 🛰️ 🦠 🌀 Check it out from @tosoceanography.bsky.social: doi.org/10.5670/ocea...
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Dr Ross Barnett @deepfrieddna.bsky.social · 28/04/2026
www.bbc.co.uk/news/article...
bbc.co.uk
Young walrus touring Scotland is 'just exploring'
The young male - who has been named Magnus - was first seen in Orkney and has since been making a splash in the north-east of Scotland.
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Society for Conservation Biology Oceania @scboceania.org · 24/04/2026
The first camera survey ever conducted on Truwana / Cape Barren Island off Tasmania - led by the Truwana Rangers - has recorded two rarely seen animals: white-footed dunnarts and blonde echidnas. #ConservationOptimism #EarthOptimism
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World Seabird Union @worldseabirdunion.bsky.social · 18/04/2026
Join the global conversation on seabird conservation and research The World Seabird Conference brings international researchers together to share findings and shape seabird conservation. Early-bird registration closes: 12 June 2026 bit.ly/4vnwNBU #WSC4
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Mary-Anne Lea @pelagicblue.bsky.social · 18/04/2026
Our @aunz.theconversation.com article with Jane Younger & Noémie Friscourt on the recent @sscmarine.bsky.social #IUCN Red List uplisting of #Antarctic fur seals and Emperor #penguins to #Endangered and the implications for Southern #Ocean #ecosystems. #Antarctica #conservation #climatechange #HPAI
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Australian Centre for Excellence in Antarctic Science (ACEAS) @antarcticsciaus.bsky.social · 15/04/2026
In a new article for @theconversation.com, ACEAS Chief Investigator Professor @pelagicblue.bsky.social, with colleagues Dr Jane Younger and Research Associate Dr Noémie Friscourt, explain what’s driving these rapid declines and what can still be done to protect these species.
Antarctic fur seal pup. Credit: Augustin Clessin.
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Convention on Migratory Species (CMS) @cms.int · 23/03/2026
Our new State of the World’s Migratory Species: Interim Report 2026 has found that a number of species that previously had stable populations are decreasing. 26 CMS-listed species have moved to higher extinction risk categories. Dive into our #SWMS26 report: www.cms.int/publication/...
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Convention on Migratory Species (CMS) @cms.int · 16/03/2026
Migratory animals connect the planet but they are facing unprecedented pressures. #CMSCOP15 in Brazil is the best opportunity to strengthen international cooperation and adopt transformative measures that will secure their future and safeguard their habitats. Learn more www.cms.int/news/press-r...
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Convention on Migratory Species (CMS) @cms.int · 14/03/2026
Migratory species depend on networks of habitats. When these connections remain intact, they can move freely, ecosystems stay resilient, and natural processes that sustain life continue to flow. Participants at #CMSCOP15 will seek to maintain, restore & strengthen these networks: www.cms.int/cop15
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Mongabay @mongabay.com · 14/03/2026
"All the big birds are now gone." This observation from a Kenyan elder reflects a global pattern. A new study shows that Indigenous ecological memories across three continents align with scientific data: Large, slow-breeding species are being lost to habitat change and hunting. By Bobby Bascomb.
mongabay.cc
Indigenous knowledge confirms what scientists observe: Large birds are disappearing
Many Indigenous peoples and local communities live in close contact with nature and learn to identify the wildlife around them from an early age. New research published in the International Journal…
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Convention on Migratory Species (CMS) @cms.int · 10/03/2026
Tomorrow: join us for the CMS webinar on health and migratory species! 🦍🩺 Learn why wildlife health is vital for conservation, what this means for migratory species, and how it connects to wider One Health efforts as we look ahead to #CMSCOP15. Register: www.cms.int/webinar-health With @wcs.org
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Mongabay @mongabay.com · 02/03/2026
Seven young northern elephant seals at California’s Año Nuevo State Park tested positive for H5N1, marking the first known infections in the species. The virus has hit hundreds of bird and mammal species worldwide. Officials have closed the beaches as a precaution.
news.mongabay.com
Avian flu strikes California’s northern elephant seals; area quarantined
Ever since a deadly strain of avian influenza, H5N1, killed some 17,000 southern elephant seal pups on South American coastlines in 2023 and 2024, researchers and public officials have kept an…
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Mongabay @mongabay.com · 02/03/2026
A 33-year study finds southern right whales off Australia are calving less often, with birth intervals rising since 2015. Researchers link the slowdown to climate-driven declines in krill and copepods, warning similar trends worldwide could threaten a species still recovering from whaling.
news.mongabay.com
Climate change is slowing southern right whale birth rate, 33-year study finds
Southern right whales (Eubalaena australis) off Australia’s southern coast are having calves less often than they used to. A new study links this slowdown to warming water and shrinking sea ice in…
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Society for Conservation Biology @society4conbio.bsky.social · 09/02/2026
Call for Proposals for #IMCC8 now open! Have an idea for a symposium, workshop, training course, that can move marine #conservation forward? Now’s the time to shape the program with bold science, practical solutions + inclusive perspectives. Due by March 6th. Learn more: conbio.org/mini-sites/i...
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International Bio-Logging Society @ibiols.bsky.social · 03/03/2026
We invite you to submit an abstract for a session on animal movement, behaviour and biologging at the 7th World Conference on Marine Biodiversity in Bruges, Belgium (17-20 November 2026) @wcmb2026.bsky.social, @inbo.be, @vliz.be, @aquatictracking.bsky.social More info below! 👇
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Guardian Australia @australia.theguardian.com · 13/02/2026
My friend Jon has died | First Dog on the Moon
theguardian.com
My friend Jon has died | First Dog on the Moon
Jon Kudelka loved his beautiful family and was fiercely intolerant of greed and hypocrisy * Sign up here to get an email whenever First Dog cartoons are published * Get all your needs met at the First Dog shop if what you need is First Dog merchandise and prints Continue reading...
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GBIF @gbif.org · 14/02/2026
1) 💕 Looking for your perfect match on #ValentinesDay? So are these marine species 😍 As ocean temperatures and conditions shift, predators and prey are falling out of sync, causing cascading effects across marine ecosystems in South America, Southern Africa, Australia and New Zealand.
A silly seal
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SCB Marine Program @scbmarine.bsky.social · 06/02/2026
Join 800+ ocean conservationists in Edinburgh, Nov 13-17, 2026 to Make Marine Science Matter. Submit symposia, workshops, focus groups, art & conservation projects + nominate plenary speakers by March 6. Details: conbio.org/mini-sites/i...
Logo for IMCC8
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Belinda Medlyn @bmedlyn.bsky.social · 06/01/2026
New research from our group: A pervasive increase in tree mortality across the Australian continent - driven by rising temperatures rdcu.be/eXSa7
rdcu.be
Pervasive increase in tree mortality across the Australian continent
Nature Plants - Eight decades of forest plot monitoring show a pervasive increase in tree mortality across Australia’s forest biomes driven by climate change, jeopardizing their role as...
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Mongabay @mongabay.com · 21/12/2025
A critically endangered North Atlantic right whale first spotted off Ireland in 2024 has been reidentified near Boston after crossing the Atlantic — a rare journey highlighting both the species’ resilience and how much scientists still have to learn.
news.mongabay.com
A rare right whale spotted off Ireland resurfaces near Boston
In a rare sighting, a critically endangered North Atlantic right whale, first photographed in 2024 off the coast of Ireland, was recently reidentified near Boston, U.S., on Nov. 19. This is the first…
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Science Magazine @science.org · 11/12/2025
Growing more common as the climate warms, once-rare “atmospheric rivers” could ultimately accelerate ice loss. scim.ag/4pwFAhx
scim.ag
Warm, humid ‘atmospheric rivers’ threaten Antarctica
Growing more common as climate warms, these once-rare events could ultimately accelerate ice loss
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Scientific Committee on Antarctic Research (SCAR) @scar-antarctic.bsky.social · 20/11/2025
Here’s a glimpse of our SCAR team at this year’s 44th CCAMLR Meetings. SCAR contributed seven papers covering topics from krill management to climate change, avian influenza, and plastic pollution, supporting the conservation of the Southern Ocean. 🌊 Full report: scar.org/scar-news/st...
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Scientific Committee on Antarctic Research (SCAR) @scar-antarctic.bsky.social · 19/11/2025
The application deadline for the 2026 SCAR Ant-ICON | SC-ATS science-policy fellowship programme is coming up soon! Apply by 23 November to be considered for the 2026 cohort: scar.org/fellowships-...
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Mary-Anne Lea @pelagicblue.bsky.social · 14/11/2025
Common seal uses photographer’s boat as refuge from orcas on the hunt!
theguardian.com
The great escape: seal flees killer whales by jumping on to photographer’s boat
Charvet Drucker captures dramatic video and photos of seal being hunted by orcas in Salish Sea, north-west of Seattle
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Australian Centre for Excellence in Antarctic Science (ACEAS) @antarcticsciaus.bsky.social · 14/11/2025
👏 Congratulations to a team of ACEAS researchers who have been awarded an ARC Discovery Project grant to investigate East Antarctica’s Aurora Subglacial Basin – a region posing one of the greatest risks for multi-metre sea level rise this century. Read more: antarctic.org.au/aceas-resear...
antarctic.org.au
ACEAS researchers awarded ARC Discovery Project grant to unlock East Antarctica’s secrets - ACEAS
A team from the Australian Centre for Excellence in Antarctic Science (ACEAS) has received a prestigious Australian Research Council (ARC) Discovery Project grant to investigate East Antarctica’s Auro...
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Dr Luis Huckstadt @luishuckstadt.bsky.social · 13/11/2025
Bird Flu Ravaged the World’s Largest Elephant Seal Population, Study Finds www.nytimes.com/2025/11/13/s...
nytimes.com
Bird Flu Ravaged the World’s Largest Elephant Seal Population, Study Finds
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Mary-Anne Lea @pelagicblue.bsky.social · 13/11/2025
New study highlights the drastic, ongoing impact of bird flu on southern elephant seals at South Georgia. Significant mortality has now been recorded across many key breeding sites leading to increasing concerns about their conservation management. @ccgbam.bsky.social @bas.ac.uk
theguardian.com
Fears for elephant seals as bird flu kills half of population in South Atlantic
Study estimates 53,000 females have died on South Georgia since 2023, with ‘dramatic impact’ on future of the species
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Convention on Migratory Species (CMS) @cms.int · 13/11/2025
The Slender-billed Curlew was declared extinct in October 2025. At #AEWAMOP9, delegates paid tribute to it, with this rare taxidermied specimen on view. Read personal reflections and testimonies from those who searched for, studied, and cared deeply about it: www.unep-aewa.org/en/news/reme...
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Ellen Garland @ellengarland.bsky.social · 01/05/2025
New paper: Culture and conservation in baleen whales @ellengarland.bsky.social, @petercorkeron.bsky.social, Mike Noad, Briana Abrahms, @jennyallen13.bsky.social, @rconstantine.bsky.social, @lrendell.bsky.social, Renata Sousa-Lima, Kate Stafford, @emma-carroll.bsky.social doi.org/10.1098/rstb...
doi.org
Culture and conservation in baleen whales | Philosophical Transactions of the Royal Society B: Biological Sciences
Culture, defined as information or behaviours shared within a population and acquired from conspecifics through social learning, acts as a second inheritance system which has important implications for species' ecology and evolution. Understanding the ...
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Elize Ng @elizeyxng.bsky.social · 30/10/2025
Why are Procellariiform seabirds most diverse in the Southern Hemisphere? Our study found that wind patterns and time since evolutionary origin best explain the extratropical peak in breeding species richness of these remarkable seabirds. 🐦💨 onlinelibrary.wiley.com/doi/10.1111/...
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Mongabay @mongabay.com · 14/10/2025
[COMMENTARY] This October, as delegates gather to discuss CCAMLR priorities, the authors of a new commentary argue, “At stake is more than a fishing rule, but also the commitment to manage fisheries proactively, rather than reactively.” ** Views are authors'.
news.mongabay.com
Abandoning Antarctic krill management measure threatens conservation progress (commentary)
All along the western Antarctic Peninsula, whales, penguins and seals in their millions depend on krill (Euphausia superba) throughout the year. In the most rapidly warming region on the continent,…
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IUCN SSC Marine Conservation Committee (MCC) @sscmarine.bsky.social · 29/10/2025
Fascinating! 😍 Still so much to discover and learn!
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Ruth Dunn @ruthedunn.bsky.social · 27/10/2025
New in @natrevbiodiv.nature.com: our review of the influence of #seabirds, via their nutrient transfer, on islands & adjacent marine ecosystems 🐦🏝️🪸 We highlight knowledge gaps & future directions ✨ "The circular seabird economy is critical for oceans, islands and people": doi.org/10.1038/s443...
Schematic diagram of the influence of seabirds on temperate and tropical near-shore marine systems.
Temperatre systems:
- Nutrient enrichment and predation on herbivorous invertebrates can lead to increased algal production
- Phytoplankton communities change, featuring more large-celled species
- Intertidal organisms incorporate seabird-enriched material by grazing on detritus and biofilm in tidepools
- Macroalgae biodiversity and primary production are boosted
Tropical systems:
- Mangrove leaf nutritional quality increases
- Corals recover faster after bleaching events
- Fish biomass increases across different trophic groups
- Pelagic and benthic consumers' foraging behaviour shifts
- Parrotfish grazing and bioerosion rates increase
- Fish grow larger
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Mary-Anne Lea @pelagicblue.bsky.social · 25/10/2025
abc.net.au
Spring's migratory flocks pose bird flu risk for Tasmania
With migratory birds returning to Tasmania during a period of increased bird flu, the chance of the virus affecting the state's coastal areas is on the rise.
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Lauren Brent @ljnbrent.bsky.social · 24/10/2025
the IUCN have passed the Longevity Conservation motion put forward to them by @kellerfish.bsky.social and @pili-scotland.bsky.social and based on the paper we wrote on the value of older individuals in animal societies. www.cdu.edu.au/news/global-...
cdu.edu.au
Global body adopts policy to protect Earth’s old, wise and large animals | Charles Darwin University
The International Union for Conservation of Nature (IUCN) has recognised Charles Darwin University-led research into the Earth’s oldest animals with the adoption of the ‘Longevity Conservation’ global...
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Mary-Anne Lea @pelagicblue.bsky.social · 25/10/2025
HPAI H5N1 likely linked to elephant seal mortality on sub-Antarctic Heard Island
abc.net.au
Scientists fear bird flu outbreak after elephant seal deaths on Heard Island
Scientists suspect a deadly strain of bird flu, H5N1, has infected wildlife on Heard Island after observing a high mortality rate in elephant seals on the Australian territory in the sub-Antarctic.
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