North Atlantic Right Whale: Eubalaena glacialis
Appearance:
Right whales lack a dorsal fin; therefore, they have a large,
flat back. They are dark gray or black and have "bumps" called
callosities, on their head. The callosities appear white due to the
presence of cyamids, or whale lice, that often congregate on the
callosities. When right whales breathe they produce a V-shaped blow
that is often as high as 15 feet and is visible from a great
distance. Measuring up to 55 feet, an adult right whale can weigh
50 tons, and a newborn calf can measure 15 feet at birth and weigh
2,000 pounds.
Habitat:
Florida takes a special interest in right whales because their
only known calving ground is located off the coasts of Georgia and
Florida.
In 1994, the National Marine Fisheries Service (NMFS)
designated the coastal waters of Florida and Georgia as the right
whale critical habitat in the Southeast U.S. This designation
provides more protection for right whales while they are in the
calving grounds. In an effort to protect this critical stage in the
life of right whales, researchers, including the Fish and Wildlife
Research Institute (FWRI) of the Florida Fish and Wildlife
Conservation Commission (FWC), the Georgia Department of Natural Resources (GDNR),
and the New
England Aquarium (NEA), fly Early Warning System (EWS) aerial
surveys to locate animals during the calving season. The EWS
surveys are organized to relay location information to mariners in
an attempt to prevent vessel-whale collisions. Additionally, in
July 1999, NMFS and the U.S. Coast Guard developed and implemented
Mandatory Ship Reporting systems (MSR). The International Maritime
Organization, a specialized organization of the United Nations,
endorsed the MSR systems. When ships greater than 300 gross tons
enter two key right whale habitats-one off the Northeast U.S. and
one off the Southeast U.S.-they are required to report to a
shore-based station. In return, ships receive a message about right
whales, their vulnerability to ship strikes, precautionary measures
the ship can take to avoid hitting a whale, and locations of recent
sightings.
Due to their coastal nature, right whales are often visible from
the beach. Many citizens along Florida's eastern coast are involved
in a right whale sighting network to help relay whale locations to
mariners. When a right whale is sighted the information is reported
to the Marine Resources Council sighting hotline (1-888-97-WHALE or
1-888-404-FWCC), where the information is then incorporated into
the extensive communication network that informs mariners of right
whale locations. Other species of whales are also found in Florida
coastal waters, so it is important to be able to distinguish a
right whale from other animals when reporting a sighting.
Behavior:
The North Atlantic right whale, Eubalaena glacialis, is
one of the most endangered large whales in the world, facing a high
likelihood of extinction largely due to human activities. About 300
animals remain of the western North Atlantic population, which is
commonly found off the East Coast of the United States and Canada.
Whalers labeled these animals "right whales" because they
considered them the "right" whales to hunt. They swam slowly in
coastal waters, floated when dead, and yielded large amounts of oil
and baleen. Right whales had been hunted to near extinction when
hunting was finally banned in 1935. Although whaling is now
illegal, right whales are still strongly affected by human
activities. Approximately 30 percent of all mortalities result from
collisions with large vessels or entanglement in fishing gear.
From approximately December through March, pregnant females
migrate from their northern feeding grounds to the sheltered waters
of the calving ground to give birth to their young.
The right whales' preference for coastal waters places them in
commercial fisheries areas and increases their chances of gear
entanglements. Approximately 57% of the photo-cataloged population
of right whales exhibit scars from previous entanglements. If an
entangled animal is sighted, immediately notify the U.S. Coast
Guard on VHF CH. 16. Include the time, GPS coordinates and physical
location, and the animal's direction of travel. As members of the
U.S. large whale disentanglement network, FWC North Atlantic right
whale researchers have received specialized training; they can
respond in the event that an entangled whale is sighted in the
southeast.
Additional Information:
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