Welcome to ScubaBoard, an online scuba diving forum community where you can join over 205,000 divers diving from around the world. If the topic is related to scuba diving, this is the place to find divers talking about it. To gain full access to ScubaBoard (and make this large box go away) you must register for a free account. As a registered member you will be able to:
Participate in over 500 dive topic forums and browse from over 5,500,000 posts.
Communicate privately with other divers from around the world.
Post your own photos or view from well over 100,000 user submitted images.
Gain access to our free classifieds marketplace to buy, sell and trade gear, travel and services.
Use the calendar to organize your events and enroll in other members' events.
Find a dive buddy or communicate directly with scuba equipment manufacturers.
All this and much more is available to you absolutely free when you register for an account, so sign up today!
If you have any problems with the registration process or your account login, please contact the ScubaBoard Support Team.
I am not sure where you read that, but it definitely isn't even close to the maximum. I have seen numbers of up to 4 tons (8000 lbs) of krill per day for the blue whale. I am not sure what that comes to in calories, but it is going to be a very large number.
Also, most baleen whales only feed for about 1/2 of the year and then fast the rest of the year when they migrate to their breeding grounds. That means during their feeding season they have to eat much more than they actually burn.
Last edited by RIOceanographer; December 3rd, 2005 at 02:03 AM.
I found something similar to what I read. Here it is
"Basking Shark requires about 663 calories per hour just to propel its massive body through the water; when plankton supply falls off during early winter, the Basking Shark can typically consume only 2 pounds of copepods - about 410 calories - an hour. So in winter, a Basking Shark would be using up more energy in swimming than it could get from its food. "
Keep in mind that a basking shark is not warm blooded which is part of the reason why it burns so few calories. Warm bloodedness requires lots of energy. Basking sharks also got their name for their tendency to swim slowly at the surface. Comparing the feeding rates and energy usage of a basking shark to a baleen whale is sort of apples and oranges. Baleen whales can be significantly bigger than a basking shark, and of course they are warm blooded so they need to eat a lot more.
I gave the example of the blue whale above because as the biggest of the whales it probably has the largest appetite of any animal on earth. Here is a site I found that has the same information for the blue whale I gave in my earlier post above, and it has links to information on a number of other whale species as well: