In The Company of Whales - In the Presence of Giants
Life is a Breach - Then you Dive
Hawaii,
the beginning of life
To Hawaiians, the whale is a representation of the Hawaiian god, Kanaloa - the god of animals in the ocean.
Humpback
whales (na kohola) are found in all oceans,
although they generally prefer near shore and near-island habitats
for both feeding and breeding.
A large percentage of the North Pacific
migrate to the main Hawaiian islands during the winter months, November
through May, each year. The round-trip distance they travel during
this annual migration is approximately 6,000 miles, one of the longest
migration distances of any animal species. During their stay in Hawaii,
they do not feed, but rely upon stored energy. Near the islands, the
whales devote most of their time to mating and giving birth to their
calves. While visiting the islands, kohola have become renowned
for their various acrobatic displays.
FEBRUARY
IS HUMPBACK WHALE AWARENESS MONTH!
For more information about Humpback Whale Awareness Month Events and
other upcoming sanctuary events such as the annual Volunteer Whale Count see the
calendar of events.
Humpback
whales are an endangered species. In the past, the global humpback
whale population size was about 750,000 to 2 million animals (!).
The current global population is about 30 to 40 thousand. With about
66% of the North Pacific population wintering in Hawaii each year,
up to 10,000 humpback whales could come to Hawaii this winter.
Other cetaceans common to our area are 22 species of dolphins and other whales such as Pilot Whales,
Blow
(aka Spout)
When a whale dives, air is compressed in its lungs. Upon reaching
the surface, the air is exhaled through the whale's blowholes. The
exhaled air expands, causing the temperature to decrease, thereby
condensing into water vapor. The blow is quite visible and can reach
heights of 20 feet. In concert with the blow is the sound of rushing
air that can be heard up to 800 feet away. The blow of
a humpback
whale is unique to each animal and a great way to distinguish between
types of whales. On average, adult humpback whales take a breath every
ten to fifteen minutes, but can remain submerged for as long as forty-five
minutes. Calves must rise to the surface every three to five minutes
to breathe.
Round Out or Peduncle Arch
When preparing for a deep dive, humpbacks will arch (hump) their back
and raise their tail flukes above water. It is this pronounced arching
of the back that has earned the humpback whale its common name.
Pec Slap
The humpback's pectoral fin is longer than that of all other species
of whales, measuring one-third the whale's body length, or approximately
twelve to fifteen feet. Humpbacks will often roll onto their side
or back and slowly slap the water's surface with one fin or both fins
simultaneously. The slapping of fins may serve as a communication
signal to other whales.
Head Rise (aka Spyhop)
A whale slowly rises vertically toward the surface, poking its head
out of the water to below its eyes. Some believe this behavior allows
the humpback whale to get a better look at activity going on above
the surface.
Tail
Slap
A tail slap consists of a whale raising its tail flukes out of water
and slapping them forcefully on the surface of the water. When the
flukes hit the water, a loud resonant noise can be heard for miles.
Humpback whales are known to repeat this behavior over and over. This
behavior may serve as a warning to others in the vicinity. Tail slap,
blow and pec wave clip!
Peduncle Slap (or Lobtail)
An aggressive display where the humpback whale will thrash the surface
of the water by whipping its upraised flukes from side to side. Humpbacks
will slap the surface of the water as a warning signal to others or
bash other whales during aggressive competition.
Head lunge (see picture with "blow" above)
The head lunge of the male whale is the equivalent of a dog baring its teeth at its opponent. In the picture at right, the whale is expelling water that it used to "puff up" its throat area and appear bigger.
Breach
A powerful acrobatic display where the humpback uses its tail to launch
itself out of the water. With just a few pumps of its tail, the humpback
can propel its entire body into the air, landing back onto the surface
with a resounding splash. The purpose of this spectacular behavior
is still unknown. Some serves as a form of communication, or maybe
just a form of playful activity for the humpback.
Nursing Whales lips aren’t flexible enough to form a suction around the mother’s nipple like other mammals. To do so, a baby whale curls its tongue. A good suction is assisted by the flaps on either side of the tongue - you can see them to the right (along with the white colored baby baleen). As the baby whale gets older and is no longer suckling, the flaps will mostly disappear. Cool, huh?
Whale
Song
Humpbacks
have a range that covers eight octaves, from a bass so low that humans
can’t hear it to a magnificent soprano. Their highly structured
songs include multiple themes that are constantly repeated and even
rhyme.
The
songs last up to 30 minutes, and the whales embellish like jazz musicians,
seeing who can improvise in some attractive way better than the other
whale. Whales sing to one another over hundreds of miles and use their
songs to navigate across oceans. Humpback whales travel thousands
of miles as a group, singing to each other as they go. They can also
communicate with each other over thousands of miles of ocean. Singing
is part of their social system and community.
Aside
from navigation and attracting mates, singing is also believed to
establish a hierarchy among male humpbacks. Singing breaks out among
migrating whales as they start to mix and continues not just in their
breeding grounds, but to attract mates even during the feeding season.
More, high res humpback whale pics here...
The
Humpback Whale North Pacific Stock
Links
to Whales, Dolphins and other marine mammals
Humpback Whales, Hawaii, Learn More
Hawaii Health Guide "First Signs and Sounds of Winter"
"No
living animals have captured our imaginations as have the great whales...
They fire our imaginations and stab at our emotions. They inspire
our art, literature, and music. And so they should. The indescribable
blend of grace, power, and beauty of a whale as it glides underwater,
leaps toward the sky, or simply lifts its flukes and slides into the
sea symbolizes a vanishing poetry of the wild."
Dr. James Darling, With The Whales