Blue Whales in The World : We have already talked a little about what do blue whales eat; now it is important to talk about their population, in order to know if they are endangered. Blue whales can weigh as much as 90 to 150 tons. Whale diets. As it turns out, most whales don’t eat large prey. They then push the water out of their mouth with their tongue while keeping the krill trapped inside their baleen bristles, which researchers and marine biologists state resemble the teeth found on a comb. Some of the krill species found in the Southern Hemisphere include Nyctiphanes australis, Euphausia superba, and Euphausia valentini. Actually, these enormous mammals eat tiny organisms, like plankton and krill, which they filter through baleen plates. The Baleen whales can eat organisms much smaller than themselves, which can cut down the trophic levels between primary producer and the whale itself, making the energy available to the whale population 1,000 units, as opposed to only 1. Apart from krill, blue whales have also been known to feed on several species of copepods. Commonly many whales are known for feeding on krill and other tiny crustaceans, but many are left wondering: Do whales eat fish or octopus? Most whales eat krill, and plankton & and shrimp Blue whales eat mainly of krill, a tiny shrimp that lives in tremendously large schools. Distribution of the Blue Whale. They can eat up to 7,715 pounds (3,500 kg) of krill a day! They do have gassy pockets, but it’s not air, not good to breath. In order to obtain adequate energy the blue whale can consume as many as 40 million krill per day, which provides their large bodies with enough nutrients to survive and thrive in the ocean. But the hungriest creatures in the ocean are the killer whales. Swarms may also occur throughout the day as krill become hungry and rise to the surface in order to obtain food. The primary food source a the blue whale is krill, a type of crustacean found all over the world. Feasting mostly on krill a tiny shrimp like creature found in great clouds in the ocean blue whales can eat as many as 40 million a day. Krill make up the vast majority of a blue whale's diet. Blue whale calves can rely exclusively on their mother's milk for as long as 18 months, and can consume nearly 150 gallons of milk each day during the first year of life. This feeding will continue until the young whale is able to hunt for food and survive on its own. Blue whales that live in the waters of the waters of Lower California and Mexico are known to eat red crabs. Calves continue to be dependent on their mother's milk until they can thrive on their own. Grey whales eat upto 340,000 lbs during their feeding period of 130 to 140 days, that is an average intake of about 2,200 lbs of food per day. Pleats and thank you Areas such as this are largely concentrated with krill because these areas foster lots of phytoplankton which krill feed on for their survival. They feed almost exclusively on krill, straining huge volumes of ocean water through their baleen plates (which are like the teeth of a comb). It can consume as many as 40 million krill per day, which ends up … When these marine mammals hunt for food the blue whale dives underneath the water and swims towards its prey using a technique known as filter feeding (a common hunting method used among baleen whales) in which they swim towards large schools of krill with their mouth open and engulf both their prey along with the surrounding water. The blue whale is the largest animal known to ever live on Earth, weighing in at 330,000 pounds (150,000 kilograms) and stretching up to 108 feet (33 meters). The International Union for Conservation of Nature estimates that there are probably between 10,000 and 25,000 blue whales worldwide today. Diet of the Blue Whale. The purpose of producing emitting light from their bodies isn’t fully understood however there have been several theories suggesting reasons for this. Blue whales mostly eat krill. The blue whale population in California is most at risk of being hit by ships. With a body that big, you might think that whales eat other big animals. A blue whale can eat … Disclosure Policy | Privacy Policy | Copyright © 2020 WhaleFacts.org. A third hypothesis is that emitting light can be used as part of a mating call or reproductive pursuit. The blue whale is the largest of all the whales, and can measure in at close to 100 feet in length and weigh over 300,000 pounds. The primary and preferred diet of blue whales is krilltiny shrimp-like animals. The type of krill that the whales feed on depends significantly on location. While these swarms are designed to protect krill it can sometimes make them a target for large whales that are hunting them as the swarm presents an abundant food source. Because of this, blue whales require larger and more dense “prey patches” (concentrations of prey) than other baleen whales. Blue whales are baleen whales, meaning they have long plates of baleen they use to filter food out of the water. The combination of highly abundant food sources and high reproductive rates is what makes these animals so abundant in certain waters. What do Blue whales eat? The blue whale is one of the most well-known species of marine mammal in the world. Scooping them up in huge mouthfuls of water, they filter out the krill from the seawater through curtain-like teeth known as baleen, releasing the water back into the sea. Once they’ve filled themselves up they sink back down towards lower depths. Phytoplankton which krill feed on amphipods, copepods and pelagic red crabs produce may them... Antarctic krill can form very large biomass ’ s about 40 what do blue whales eat krill in a.. 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