Showing posts with label marine sanctuary. Show all posts
Showing posts with label marine sanctuary. Show all posts

Thursday, September 1, 2011

Bermuda Humpback Whale Sanctuary: NOAA and island nation working to learn more about whales' migration

Recently, the National Oceanic and Atmospheric Administration (NOAA) announced a letter of intent had been signed with the Bermuda Department of Environmental Protection to establish a sanctuary for humpback whales. This will be the third such sanctuary for Atlantic Ocean humpbacks - the other two being the Stellwagen Bank in Maine and the Santuario Mamiferos Marinos in the Dominican Republic.



There are five distinct populations of humpback whales in the North Atlantic: Maine (Stellwagen Bank), Nova Scotia, Greenland, Norway, and Iceland. In the north, the whales feed but when breeding season approaches, they head south to the Caribbean. These migratory patterns are of considerable importance to researchers as the better they understand them, the more effective the management and regulatory policies can be made to protect them. Some of these migratory highways are known to cross established shipping lanes, and that has resulted in collisions with ships which produce serious injury or death.



As an example, after studying whale movements based on sightings over a 20 year period, a proposal was recently made to move shipping northward by 12 degrees; the anticipated result being a drop in strikes by ships of over 80 percent.



Both the proposed Bermuda and the Dominican Republic sanctuaries are considered "sister" sanctuaries to Stellwagen Bank. In the Caribbean, the various whale populations mingle, guaranteeing a good mix of the gene pool, before all heading back to their respective northern locations. While more sanctuaries are being sought in and around the Dominican Republic, the Bermuda sanctuary is less in the specific breeding zone than it is a spot along the route.



Positioned just south of halfway along the whales' journey, the sanctuary would afford researchers the opportunity to study the whales during migration, provides protection within the migratory corridor, and even affords Bermuda the opportunity to generate additional tourism dollars through whale watching excursions.



"This is a first step in putting together conservation stepping stones throughout their migration. The expansion of our Sister Sanctuary Program will play a powerful role in protecting endangered humpback whales, and the opportunity for international cooperation in marine conservation is invaluable," said Nathalie Ward of the Stellwagen Bank National Marine Sanctuary.



Humpback whales - recognizable by their long pectoral (front) fins and famous for their possible communicating via long, ethereal "songs" - are found in basically all of the world's oceans. While protected by many nations, they have been hunted by a few of the remaining whaling nations, in particular Japan, who takes them under the guise of scientific research, a shameful loophole in the whaling moratorium regulations of the International Whaling Commission (IWC). The current population of humpback whales is estimated at around 80,000, down from a pre-whaling population of around 125,000. That's a better situation than other species of whales and, in 2008, the IUCN changed the whale's listing regarding possible extinction from "Vulnerable" to "Least Concern."



Sounds like a slowly evolving success story but there is still much that we don't know about these immense but graceful marine mammals, so the work goes on and whale advocates remain ever vigilant.

Monday, April 18, 2011

Bahamas Shark Sanctuary: the call is out to protect a leading shark locale

Having just recently returned from a video expedition to the northwest banks off of the Bahamas, I was again reminded as to why this region is considered one of the shark capitols of the world. The underwater topography, from white sandy plains to lush reefs to expansive beds of sea grass, lend themselves as hospitable environments for a variety of shark species. Caribbean reef sharks and the occasional tiger shark cruise the reefs. Lemon sharks in large numbers, tiger sharks, and nurse sharks patrol the sandy bottoms. And in deeper water you can find hammerhead and oceanic white tip sharks.

With scuba diving and shark diving being major tourist attractions that support the Bahamas' fragile economy, it is surprising to find that there are no established management policies or regulated safe zones for the protection of the sharks in the Bahamas. These animals are exposed. But that could soon change.

The Bahamas National Trust (BNT), with cooperation from the Pew Charitable Trusts, is beginning a campaign to have a shark sanctuary established in the Bahamas. This would be the first of its kind in the Atlantic Ocean, and that could start the ball rolling much like what is occurring in the Pacific with the Palau Shark Sanctuary and the shark fishing regulations or prohibitions that have sprung up in several Pacific island nations.

But first, you must get the people on your side. With a committed, or least understanding and willing, constituency, you then can generate support and action within the halls of government. The Dorsal Fin blog noted the following two videos produced by the BNT and Pew Trusts. Each delivers basically the same message but with a slightly different angle. The first video is designed to appeal to the human element and to show that even Bahamian children understand the importance of protecting such a vital national natural resource and that what could happen to sharks will impact future generations. The second video shows the sharks themselves, particularly Caribbean reef sharks, and is a bit more informative - although it lacks a clever motif or hook that could perhaps better grab the viewer's attention.

But together they make for a great statement of common sense and concern. The Bahamas is more than a source or sun, sand, and a cool tropical drink (although that ain't bad by itself). No, the Bahamas is also a priceless oceanic treasure that needs an overarching policy of protection for its sharks. Without them, an oceanic gem would suffer in more ways than one.





I'll have some of my recent Bahama footage up soon in future posts, but in the meantime, check out the Bahamas National Trust and Pew Charitable Trusts to learn more about what you can do. It's about time.