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Ocean

Finland Shadow Offline
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( This post was last modified: 12-08-2019, 02:32 PM by Shadow )

(12-02-2019, 09:29 PM)BorneanTiger Wrote: 5 Mysterious Deep Sea Creatures Caught on Camera: 




The Most Terrifying Creatures Of The Deep Sea: 




Aquatic creatures (both freshwaterand saltwater ones) that eat terrestrial animals!




That third video and orca part was frankly saying so stupid when trying to imply, that orcas would hunt moose and deer on the shores. And same time there was shown a picture of a moose standing in the water giving impression, that moose on the shoreline would be in some dangerous situation. It could be, but only if bears or wolves nearby. 

It can be, that people making that clip don´t know, but moose and deer can actually swim. (actually I think, that these people just don´t care about facts, only interest is to get viewers, no matter how much they bend reality) They can swim to islands and that is the only situation in which they can be attacked by orcas and why not by some big shark in rare occasions. But photoshopping pictures and making odd imaginary scenes like on that video is just sensationalism and poor journalism.
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BorneanTiger Offline
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( This post was last modified: 12-11-2019, 10:07 PM by BorneanTiger )

- Orcas do hunt walruses, but killing these tusked pinnipeds is hard: https://www.researchgate.net/publication...t_Chukotka

- It maybe hard to believe, but a family or group of Stellar's sea lions rescued one of their own from a pod of Bigg's Transient orcas:



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BorneanTiger Offline
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( This post was last modified: 03-28-2020, 11:32 PM by BorneanTiger )

Squids: https://wildfact.com/forum/topic-squids-decapodiformes
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United Kingdom Sully Offline
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Species recovery and recolonization of past habitats: lessons for science and conservation from sea otters in estuaries

Recovering species are often limited to much smaller areas than they historically occupied. Conservation planning for the recovering species is often based on this limited range, which may simply be an artifact of where the surviving population persisted. Southern sea otters (Enhydra lutris nereis) were hunted nearly to extinction but recovered from a small remnant population on a remote stretch of the California outer coast, where most of their recovery has occurred. However, studies of recently-recolonized estuaries have revealed that estuaries can provide southern sea otters with high quality habitats featuring shallow waters, high production and ample food, limited predators, and protected haul-out opportunities. Moreover, sea otters can have strong effects on estuarine ecosystems, fostering seagrass resilience through their consumption of invertebrate prey. Using a combination of literature reviews, population modeling, and prey surveys we explored the former estuarine habitats outside the current southern sea otter range to determine if these estuarine habitats can support healthy sea otter populations. We found the majority of studies and conservation efforts have focused on populations in exposed, rocky coastal habitats. Yet historical evidence indicates that sea otters were also formerly ubiquitous in estuaries. Our habitat-specific population growth model for California’s largest estuary—San Francisco Bay—determined that it alone can support about 6,600 sea otters, more than double the 2018 California population. Prey surveys in estuaries currently with (Elkhorn Slough and Morro Bay) and without (San Francisco Bay and Drakes Estero) sea otters indicated that the availability of prey, especially crabs, is sufficient to support healthy sea otter populations. Combining historical evidence with our results, we show that conservation practitioners could consider former estuarine habitats as targets for sea otter and ecosystem restoration. This study reveals the importance of understanding how recovering species interact with all the ecosystems they historically occupied, both for improved conservation of the recovering species and for successful restoration of ecosystem functions and processes.

https://peerj.com/articles/8100/
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United Kingdom Spalea Offline
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Peter Haygarth: "Manta Ray off Komodo island last year."

Inside the Komodo island the Komodo dragon, and into the sea aroune this island:

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United Kingdom Spalea Offline
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Striped swordsfish ?

Jorge Cevera Hauser: " Suspect was last seen wearing a striped suit while driving at 50mph "

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BorneanTiger Offline
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( This post was last modified: 12-23-2019, 09:19 PM by BorneanTiger )

Keep scrolling till you reach the bottom of the ocean: https://neal.fun/deep-sea/
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United Kingdom Spalea Offline
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Elephant seals fighting... Bloody !


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United Kingdom Spalea Offline
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" Leopard Seal rips the head off a Penguin ".


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BorneanTiger Offline
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Bryde's whales seen off the coast of Abu Dhabi: https://wildfact.com/forum/topic-baleen-...9#pid99649
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United Kingdom Spalea Offline
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Jaime Morley: " A pretty raw moment filming a leopard seal out to lunch ".

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United Kingdom Spalea Offline
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A mantis shrimp catching a fish ? Efficient !

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BorneanTiger Offline
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The deadly 'ghost gear' which haunts seas and coastlines
https://www.bbc.com/news/uk-scotland-hig...s-50510666

A pregnant minke whale was found tangled in a fishing net in Orkney in October last year. Credit: SMASS ORKNEY
   

More than half a million tonnes of fishing gear is estimated to be lost or abandoned every year in the world's seas and oceans. Some of it entangles and kills wildlife at sea and on shore. Conservationists call it "ghost gear". It includes fishing nets, long lines, fish traps and lobster pots left drifting at sea usually after being accidentally lost from fishing grounds or boats, or discarded in an emergency such as in a storm. "Fishing gear is designed to trap marine organisms, and it can continue to do so long after the gear is lost or discarded in the ocean," says Joel Baziuk of the Global Ghost Gear Initiative (GGGI). "When lost fishing gear keeps catching fish after its intended lifespan, it is called ghost fishing."

The whale's body came ashore near Scrabster. Image copyright: KAREN MUNRO
   

He said ghost gear was the most harmful form of debris to marine life because of the risk of entanglement or entrapment. GGGI estimates at least 640,000 tonnes of fishing gear are lost or abandoned every year. The hotspots include the Gulf of Carpentaria in Australia and Hawaii in the Pacific. Joel says: "Ghost gear is a problem anywhere fishing takes place, and that includes Scotland."

This five-week-old grey seal pup was successfully rescued after getting entangled in a plastic net. Image copyright: DAVID YARDLEY
   

The risks this marine pollution poses to wildlife include entanglement, when animals get wrapped up in rope and other gear. In Scotland, the Scottish Marine Animal Strandings Scheme (Smass), which investigates marine animal deaths, recorded 12 entanglement cases in 2019. They included a pregnant whale found dead and tangled in a fishing net in Orkney in October. The net was jammed in the animal's baleen, the filter-feeder system inside its mouth: https://www.bbc.com/news/uk-scotland-nor...d-49971798

In May, a humpback whale entangled in fishing gear washed up dead close to Scrabster, near Thurso on the north Caithness coast: https://www.bbc.com/news/uk-scotland-hig...s-48458440

The previous month, another humpback whale was found to have been entangled in rope for "weeks, if not months" before it drowned off the East Lothian coast near Tyningham: https://www.bbc.com/news/uk-scotland-edi...e-48051954

What are the other risks?

A 100 kg "litter ball" was found in the stomach of whale that washed up in Harris. Entanglement is not the only threat posed to whales. Image copyright: SMASS
   

A sperm whale that died after stranding on the Isle of Harris in November had a 100 kg (220 lbs) "litter ball" in its stomach. Fishing nets, rope, packing straps, bags and plastic cups were among the items discovered in a compacted mass during an investigation by Smass. Seals have also been caught up in nets and ropes, though there have been successful rescues of these animals, including the saving of a five-week-old grey seal pup entangled in a plastic net on Lewis: https://www.bbc.com/news/uk-scotland-hig...s-42166814

A hotline run by British Divers Marine Life Rescue (BDMLR) has received 47 reports of entangled seals this year in Britain. Some of the animals were lucky and were rescued, or managed to free themselves.

A stag on the Isle of Rum with fishing gear caught in its antlers. Image copyright: SNH
   

Other ghost gear victims include animals that forage on shorelines. In 2017, stags on the Isle of Rum were found with fishing gear caught in their antlers. Two of the animals died after becoming snarled up together in discarded fishing rope, while another stag was photographed with an orange buoy and rope balled up in its antlers. Even tiny fragments of ghost gear is a risk, say conservationists. Noel Hawkins, of the Scottish Wildlife Trust's Living Seas project, says: "Some of the small stuff can be as devastating to wildlife as many seabirds swallow it thinking it is fish eggs or food. "They choke on it and even use it as nest material, which endangers chicks."

What is being done?

BDMLR volunteers rescuing a young minke whale. Image copyright: BDMLR
   

Scotland is playing its part in a global effort to tackle ghost gear. In a GGGI project, divers from the Ghost Fishing UK initiative have carried out underwater clean-ups in Orkney. BDMLR, meanwhile, is part of the Scottish Entanglement Alliance (Sea), a coalition of conservation groups, rescue teams and fishermen. The coalition is seeking to find best practices to avoid entanglements and the most effective responses to any incidents. This year the alliance trained 20 people working in the fishing industry throughout Scotland in how to help disentangle animals. And there have been success stories. In October, BDMLR helped to free a humpback from fishing ropes in Orkney. New technology, such as prawn creels that can be lowered into the sea and returned to the surface without the need of ropes is also being trialled.

What else is happening in Scotland?

While tonnes of marine litter is cleared from Scotland's shores, conservationists warn much more remains floating out to sea. Image copyright: SWT
   

The Scottish Fishermen's Federation says the fishing industry across Europe is "actively engaged" with the issue of discarded gear. "Very little" fishing equipment is lost at sea by the Scottish fleet, according to the federation's chief executive Elspeth Macdonald. She says: "Trawl nets are expensive, which means that skippers try to get as much use as possible out of them, and put them ashore to be mended when required. "The bulk of the ghost gear found in the Scottish sector is monofilament netting used by French and Spanish gill netters and longliners on the west coast." There is also an effort to clean up ghost gear that washes up on Scotland's shores.

Rubbish collected from beaches in the Summer Isles being loaded on to a boat for disposal. Image copyright: SWT
   

In the north west Highlands, Scottish Wildlife Trust's Living Seas project has been setting up beach clean stations in remote locations. The stations are large pallet boxes with litter pickers and bags attached and members of the public walking along the beaches are encourage to use the stations to gather up any litter they find. The project's Noel Hawkins says: "One of these just north of Ullapool at Dun Canna beach has taken in over tonne of rubbish alone." In July, tonnes of rubbish was removed from the Summer Isles in the north west Highlands in another of the project's clean-ups. Fishing ropes and nets were among the other items gathered in a clean-up. But Noel says: "It is worth remembering that some estimates think only 3 to 5% of rubbish actually comes ashore though. "There is still a lot more out there."
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BorneanTiger Offline
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Oceans are warming at the same rate as if five Hiroshima bombs were dropped in every second, as reported by Cheng et al.: https://edition.cnn.com/2020/01/13/world...index.htmlhttps://www.theguardian.com/environment/...per-secondhttps://www.indy100.com/article/climate-...ce-9282806
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Check this out: for the 2nd year in a row, one of the biggest bull sharks was caught in the Gulf of Oman (part of the Arabian Sea) off the coast of Fujairah in the eastern part of the UAE: https://wildfact.com/forum/topic-the-bul...#pid100097
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