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January 04 2012

World-first hybrid shark found off Australia | uk.news.yahoo.com

Scientists said on Tuesday that they had discovered the world's first hybrid sharks in Australian waters, a potential sign the predators were adapting to cope with climate change.

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 // quotation by oAnth:

 [...]

 

The Australian black-tip is slightly smaller than its common cousin and can only live in tropical waters, but its hybrid offspring have been found 2,000 kilometres down the coast, in cooler seas.

 

It means the Australian black-tip could be adapting to ensure its survival as sea temperatures change because of global warming.

 

"If it hybridises with the common species it can effectively shift its range further south into cooler waters, so the effect of this hybridising is a range expansion," Morgan said.

"It's enabled a species restricted to the tropics to move into temperate waters."

 

Climate change and human fishing are some of the potential triggers being investigated by the team, with further genetic mapping also planned to examine whether it was an ancient process just discovered or a more recent phenomenon.

 [...]

 

- original Url: http://uk.news.yahoo.com/world-first-hybrid-shark-found-off-australia-070347259.html



May 07 2011

TERRA 607: Students Saving the Ocean

STUDENTS SAVING THE OCEAN tells the story of the how the conservation community in the Bay Area comes together to improve the health and environment of the California coasts. ;Students lead the charge to explain how everyday decisions have a big impact on our oceans.
TERRA 607: Students Saving the Ocean

STUDENTS SAVING THE OCEAN tells the story of the how the conservation community in the Bay Area comes together to improve the health and environment of the California coasts. ;Students lead the charge to explain how everyday decisions have a big impact on our oceans.

May 26 2010

TERRA 534: Hindsight and Foresight - 20 Years After the Exxon Valdez Oil Spill

In light of the recent catastrophe in the Gulf Coast region, it seems appropriate to re-visit the previous disaster of the Exxon Valdez oil spill in Alaska. This film, produced by NOAA, takes a look at the past 20 years of recovery and persisting environmental effects in Prince William Sound. What does this film tell us about the consequences of the present BP oil drilling disaster in the Gulf Coast region and what can we learn from it?
TERRA 534: Hindsight and Foresight - 20 Years After the Exxon Valdez Oil Spill

In light of the recent catastrophe in the Gulf Coast region, it seems appropriate to re-visit the previous disaster of the Exxon Valdez oil spill in Alaska. This film, produced by NOAA, takes a look at the past 20 years of recovery and persisting environmental effects in Prince William Sound. What does this film tell us about the consequences of the present BP oil drilling disaster in the Gulf Coast region and what can we learn from it?

September 21 2009

TERRA 524: The Barge That Wouldn't Budge

In March 2009, a group of NOAA scientists and marine debris experts gathered on the shores the Potomac River to tackle a problem left ignored for the last 25 years. Abandoned during the construction of a local yacht club since the 1980's, a barge stuck in the mud poses potential environmental and navigational hazards. Yet, no one knows who left it, and no one has been able to remove it. NOAA and the Alice Ferguson Foundation have banded together to sort the problem out. This first installment traces the mounting effort through the silent perspective of the The Barge That Wouldn't Budge.

July 06 2009

TERRA 519: Disappearing Catch

For centuries the Maryland Blue Crab has defined a way of life for Chesapeake Bay Watermen. Now this resource, which was once so plentiful, is declining in numbers and is threatening a way of life that has defined the Chesapeake Bay for centuries. Can scientists and Watermen find common ground and institute sensible regulation, or is it too late to save this Disapearing Catch?

June 17 2009

TERRA 517: Sealed Off!!! PART ONE

The beach known as The Children's Pool in La Jolla, California, has been a point of pride in the town for 75 years. Today almost no one goes there to swim, not since a pod of 200 harbor seals took up residence on the sand. Should La Jolla return the beach to use by people or make it a seal preserve? Sealed Off!!! takes a quirky look at this unusual controversy through the eyes of some of the people most intimately connected to it.

May 11 2009

TERRA 514: Life by the Tide

The Pacific inter-tidal zone is a harsh but beautiful ecosystem inhabited by creatures that developed bizarre and elegant forms in order to survive. This film takes place during low tide on a foggy summer day when the sea pulls back from the land, exposing the peculiar life below. Winner of the 2009 International Wildlife Film Festival awards for Best Amateur Film and Best Music Video.

November 20 2008

TERRA 455: Rising Tide PART TWO

How will the coral reefs, monk seals, native plants, and honeycreepers of Hawai'i deal with climate change? Local researchers working in the island chain's stunning national parks tell us their concerns for wildlife, key habitats, and cultural resources.

November 14 2008

TERRA 454: PREVIEW Rising Tide

How will the coral reefs, monk seals, native plants, and honeycreepers of Hawai'i deal with climate change? Local researchers working in the island chain's stunning national parks tell us their concerns for wildlife, key habitats, and cultural resources.
TERRA 454: Rising Tide

How will the coral reefs, monk seals, native plants, and honeycreepers of Hawai'i deal with climate change? Local researchers working in the island chain's stunning national parks tell us their concerns for wildlife, key habitats, and cultural resources.

July 23 2008

TERRA 438 PREVIEW: Trouble in the Tropics: Invasive Lionfish

The invasive lionfish--venomous and voracious--has reached the tropical western Atlantic, where its reproductive rate is soaring. Invasive species expert, Lad Akins, of the Reef Environmental Education Foundation; along with College of the Bahamas marine science intern, Everton Joseph; and specimen collector for the Bermuda Aquarium, Chris Flook, team up in the waters of the Bahamas, where they dive, collect, tag and dissect, to better understand the invader in its new home. They'll run key field experiments, to identify potential controls, and assess the likely impacts of the invasion, on fragile reef ecosystems and ocean-based economies.
TERRA 438 PART ONE: Trouble in the Tropics: Invasive Lionfish

The invasive lionfish--venomous and voracious--has reached the tropical western Atlantic, where its reproductive rate is soaring. Invasive species expert, Lad Akins, of the Reef Environmental Education Foundation; along with College of the Bahamas marine science intern, Everton Joseph; and specimen collector for the Bermuda Aquarium, Chris Flook, team up in the waters of the Bahamas, where they dive, collect, tag and dissect, to better understand the invader in its new home. They'll run key field experiments, to identify potential controls, and assess the likely impacts of the invasion, on fragile reef ecosystems and ocean-based economies.

September 12 2007

TERRA 340: A Life with Skulls PART TWO

Ray Bandar is not your average museum curator. How could he be with nicknames like Dr. Bones and Reptile Ray? He spends his days dressed in tattered clothes, walking San Francisco's beaches in search of the ultimate specimens for his collection - and what is he collecting? Skulls! Not just any old skulls though - these skulls are for one of the most diverse and exotic museum collections in the world. Seals, sharks, lions, hyenas - Ray has collected them all! So put on your swim suit and grab a towel as we head to the beach with filmmaker Beth Cataldo for "A Life With Skulls".
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