Humpback Whales
| Use attributes for filter ! | |
| Initial release | USA |
|---|---|
| Directors | Greg MacGillivray |
| Screenplay | Stephen Judson |
| Composers | Steve Wood |
| Cast | Ewan McGregor |
| Producers | Shaun Macgillivray |
| Mark Krenzien | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2218878 |
About Humpback Whales
From the waters of Alaska, Hawaii and the remote islands of Tonga, scientists research how these giant mammals communicate, sing, feed, play and take care of their young while migrating 10,000 miles every year.
Drones are showing us sharks like never before
... Since then, she has filmed Humpback Whales emerging from the deep to engulf prey in their giant maws, and a fleet of ghostly rays swimming in formation with the aid of a drone that can soar as high as 400 feet, or hover over the surface of the water...
The Antarctic and Arctic sounds rarely heard before
... Crabeater seals, minke whales, narwhals and Humpback Whales were also recorded...
Marine wildlife warning as UK whale sightings rise
...An increase in sightings of Humpback Whales in UK waters is a positive sign of the species recovery from commercial whaling, experts have said...
Two men and a dog chases an Arctic dream into a lifeboat
... kayaking expeditions have some intense encounters with orca and Humpback Whales...
'Amazing' blue whale numbers on South Georgia
... Humpback Whales - multiple populations consistently go every year...
'Dolphin snot' used to look at health of pod off Gower
... The method has been used to collect DNA from Humpback Whales, which have the lung capacity equivalent to the size of a Ford Ka...
How Japan's appetite for watching whales is growing
... Rupert Wingfield-Hayes went to find Humpback Whales in their nursery, 1,000km off the coast of Japan...
Whale 'swallows' sea lion: 'It was a once-in-a-lifetime event'
... It wasn t a huge group, only three Humpback Whales and about two hundred sea lions, Chase tells Radio 1 Newsbeat...
'Dolphin snot' used to look at health of pod off Gower
Blow, or snot, exhaled by dolphins off the Welsh coast has been collected as scientists try to better understand the health of pods.
The Method has been used to collect DNA from Humpback Whales , which have the lung capacity equivalent to the size of a Ford Ka.
But with dolphins having a smaller lung volume, about the size of two rugby balls, it had never been attempted.
Swansea University researchers, though, developed a way to collect samples.
The Method involves reaching a pole off a boat to collect dolphin "blow" after they have risen to The Surface .
Samples were collected last week using a pole and Petri dishIt is hoped this will help scientists better understand pods of cetacean species- including common and bottlenose dolphins, and porpoises.
This will then guide efforts to protect them in The Future .
"When an infected person sneezes, lung vapour (i. e. snot) can be projected quite a distance before snot hitchhikers (i. e. viruses and bacteria) take up home in another host," said Dr Chloe Robinson, who helped develop The Method .
"A similar thing occurs in cetaceans.
"When they come to The Surface to breathe, they exhale Air at a considerable force, thus firing snot up into the Air . "
The Samples collected from off Gower are being analysedThere is currently little accurate Information on how many live off the Welsh coast.
However, there are estimated to be about 250 bottlenose dolphins resident in Cardigan Bay , around New Quay , all year round.
Porpoises are The Most common cetacean, in large numbers off Swansea Bay , but are sometimes hard to spot because they are small and shy.
Lots of Common Dolphins also come close to shore in summer, off Gower, Pembrokeshire and Cardigan Bay .
Dorsal Fins have previously been used to identify these, but genetic samples give more accurate Information .
Although there are no overall population estimates for Common Dolphins in The Eastern North Atlantic, there are thought to be about 75,000 in the Celtic DeepHowever, collecting skin biopsies when dolphins rise to The Surface proved invasive, leaving some shy of boats with the blubber hole Left Behind prone to infection.
But advancements in DNA extraction and techniques have opened up a whole ocean of opportunity.
Blowhole samples have been collected from species such as Humpback Whales , since 2010, using Petri dishes on poles and drones.
"The technique is already being used for larger cetaceans which can be easier if you find them as their blow or breathe is huge," said researcher Chiara Bertelli.
"But it hasn't been done in the UK or with smaller cetaceans as far as we know.
"We had one successful sample last year, so it does Work although very difficult. "
Work is being carried as part of Swansea University's EU-funded research project SEACAMS2 with help from New Quay -based marine charity Sea WatchSwansea-based researchers collected 37 samples on their first attempt in 2018.
DNA was only found in one of these - from a female, short-beaked common dolphin.
But it is still believed to be The First successful collection from a small, wild cetacean species and has helped researchers to improve their methods.
Following a large number of sightings off Gower over Bank Holiday weekend, more samples were collected last week that are now being analysed in the laboratory.
The ultimate goal is to use the technique alongside photo identification to create a catalogue on Population Genetics .
gower, new quay, swansea university, dolphins, marine biology
Source of news: bbc.com
