Sunday, September 17, 2017

The Unicorn of the sea ( Norwhals) Endangered




No doubt few of you have ever seen a norwhal and probably fewer have even heard of them. Nevertheless they are fighting for their existence. They are predominately found around Northern Canada and Geenland and have always been valued by indigenous people for their long tusks, meat and their skin which is full of vitamin C and an important part of the Eskimos' diet.
The narwhal looks like a cross between a whale and a unicorn with its long, spiraled tusk jutting from its head. Males most commonly have tusks, and some may even have two. The tusk, which can grow as long as 10 feet, is actually an enlarged tooth. Ongoing research by WWF collaborators indicates that the tusk has sensory capability, with up to 10 million nerve endings inside. The tusk may also play a role in the ways males exert dominance.
Narwhals spend their lives in the Arctic waters of Canada, Greenland, and Norway. The majority of the world’s narwhals winter for up to five months under the sea ice in the Baffin Bay-Davis Strait area (between Canada and western Greenland). Cracks in the ice allow them to breathe when needed, especially after dives, which can be up to a mile and a half deep. They feed mainly on Greenland halibut, along with other fish, squid and shrimp.
Narwhals have been listed as endangered since 2008. Very few laws have been proposed in attempts to protect this interesting species. In an effort to support conservation, the European Union established an import ban on tusks. Narwhals are becoming extinct for three main reasons. The primary catalyst for the series of events that have led to decrease narwhal populations is unprecedentedly rapid climate change.
Thousands of years of evolution have prepared an Arctic species like the narwhal for life on and around the sea ice. Because of climate change, this ice cover has dramatically decreased in both extent and thickness, at a rate far too quick for a species to adapt. A narwhal relies on sea ice for a place to feed and a place to take refuge—occasionally even a place to hide from predators. An additional result of climate change is the reduction in the population of the narwhal’s primary prey, the Greenland halibut.

The Melting Ice Of The Arctic
 Melting Arctic ice

Also encumbering rehabilitation efforts for the narwhal species is the increase in oil and gas development. The increased shipping of oil and gas has lead to increased shipping movement in sensitive areas. In addition to the possibility of fatal oil spills, collisions between boats and many species of marine life are certain to occur. Also, shipping, marine construction and military activities cause an increase in noise pollution. Whales, as well as many other marine species, rely heavily on sound for communication. This new interference by noise pollution can negatively affect a narwhal’s ability to find food and mates, navigate, avoid predators and take care of their young. “Man-made noise affects sea creatures like putting a bucket on your head. It cuts off the senses they need to survive. When they can’t hear, they can’t live”
Finally, hunting with modern equipment represents the most long-standing and consistent threat to narwhals throughout their habitat-range.
Are Norwhals important??? Every link in the food chain is absolutely essential to the link that came  before and the link that comes after it and the link after that. That food chain eventually makes it's way to humans, who consider themselves at the top of the chain. When those links start disappearing one by one so does our food.
It's like this...a little fish, while eating a shrimp, gets eaten by a bigger fish, which gets eaten by a bigger fish and so on until the last fish in the line is a huge marlin which is then caught by a man and eaten. That is how the food chain works. So even the species that aren't too pretty, like the  narwhals hold an important place in the survival of the life on our planet.

No comments:

Post a Comment