It’s Shark Week!
The most anticipated week of wildlife programming is upon us via Discovery Channel and we are sure to see lots on great whites, bull sharks and other potentially dangerous creatures.
I want to start off with something different-the gentle giant of the Gulf of Mexico and other warm seas-the whale shark.
Here are five facts you probably did not about about these under appreciated beauties.
Fact #1: Whale sharks are filter feeders and a big part of what they eat are fish eggs. As spawning approaches on reefs and other fish-rich areas they have been documented waiting for the eggs to appear and then moving into gorge themselves.
Fact #2: Whale sharks hatch their own eggs inside their bodies. The mother will hatch out about 300 babies but very few make it to maturity. And even when they do it takes upwards of 25 years to be able to reproduce. That is why the death of a whale shark can have a big impact on the species.
Fact #3: Speaking of making babies, no one has ever observed whale sharks mating. Well, at least no one in the scientific community has. They spend a huge portion of their lives on the open sea where few eyes gaze upon them.
Fact #4: The Georgia Aquarium in Atlanta is the only facility with an opportunity to swim with captive whale sharks. They have four and a portion of what they make on the encounters goes to field conservation.
Since 2004, the Aquarium’s field research focused on the many whale sharks that visit the Yucatan peninsula in Mexico, the largest gathering of its kind in the world.
“By using satellite tags, aerial surveys and photo identification software, Georgia Aquarium and its partners have studied and tracked over 1,000 whale sharks known to visit this area to feed on plankton and fish eggs every summer. The future focus for field research will be to explore connections to populations of whale sharks found in more remote places on Earth.”
Fact #5: Whale sharks sometimes beach themselves or enter shallow bays when sick. When I was eight years old, a medium-sized whale shark entered Sabine Lake, a bay on the Texas/Louisiana border near my home.
This is from United Press International in a story dated July 10, 1982.
A rotund 26-foot whale shark knicknamed ‘Gums’ died an unusual death in an oyster bed in Sabine Lake, a biology professor says.
Dave Bechler, Lamar University assistant biology professor, said Friday the shark was a rare find along the Texas coast because it does not normally inhabit Texas coastal waters.
‘There was probably something already wrong with it,’ he said. ‘Whales and whale sharks sometimes beach themselves. We really don’t know why they do that.’