Survival Adaptations Sei whales have rare thick blubber and harder metal plates and baleen in their teeth with larger bodies and body mass than other whales. It is ranked #3 in terms of overall Baleen Whale size. Information Speed is also a vital component to their survival. To help them adapt to the ocean whales developed echolocation, thick layers of blubber, modified lungs, better hearing and larger arteries among other things to ensure their survival and prosperity. There are several species, but all are identified by enormous heads, which can measure up to one-third of their total body length. The thick layer of blubber under the skin of a whale results in a streamlined, fusiform bo… The sei belongs to the Balaenopteridae, or rorqual whales, that have numerous ventral grooves and a dorsal fin. It inhabits most oceans and adjoining seas, and prefers deep offshore waters. Three professional drawings of the animal (The Illustrated London News 1848; reproduced in Figures 1 and 2 here), authorized b… World Wildlife Fund: Learn more about the Sei Whale, conservation efforts, and what you can do to help ensure the species' survival. One of the Baleen Whale species is the Sei Whale. Whales are an amazing species that have evolved from land dwelling creatures millions of years ago (through ancestral blood lines) to the marine mammals we know today. These large marine mammals are often passed by numerous would be predators because they are simply too large to be successfully attacked and therefore attempting to injure and kill a large whale would likely be a huge waste of time and energy. Sei Whales are protected under the Marine Mammal Protection Act of 1972 and the Endangered Species Act of 1973. This is believed to be one of the fastest of all whales, and it can easily travel several miles per day while migrating. The taxonomy of Balaenopteridae, particularly involving what has been considered the ‘Bryde’s whale group’, is currently the focus of ongoing investigation and new discoveries [1–4]. Galapagos Whales. Lastly, smaller species of whale and other cetaceans are known to form pods or large communities which increase social interaction among marine mammals and helps deter large predators or at least minimizes the chance of any one animal being harmed since they all belong to a group. The larger whales found in the Galapagos islands are both migrants and residents. Sei whales occur in subtropical, temperate, and subpolar waters around the world. Females typically give birth to a single calf measuring 4.5 m in length. The baleen in their mouths filter the food for the other animals who feed on the algae and the clean the gook out of their mouths and the plaque off their teeth as well. Length: 60 ft. (Adult) Mass: 44,000 lbs (Adult) Scientific name: Balaenoptera borealis. This blubber not only keeps whales warm but also acts as a protective barrier against smaller predators such as sharks. More about whale adaptations. Seis are somewhat smaller than the fin whale which, in turn, is smaller than the blue whale. This occurred in the South Atlantic, some 300 miles from the coast of present day Namibia. Tucking into a variety of treats, fish, squid, krill, copepods and zooplankton are all part of their diets. Dolphins and porpoises. Like other great whales, they prefer to spend the summer feeding in cooler waters before migrating to warmer waters to breed and give birth to their calves. Colored dark-grey and bluish gray, sei whales are similar in appearance to Bryde’s whales, but can be distinguished by the single ridge lining their snout … Sign in|Recent Site Activity|Report Abuse|Print Page|Powered By Google Sites. The Blue Whale is the largest animal in the world, which requires lots of food hence why they try to find large groups of krill. One important strength is actually a weakness: unlike our rigid ribs, the whale's flexible ribcage allows its chest cavity to collapse in a controlled way as the pressure increases. The snout is pointed, and the pec­toral fins are short. Larger red blood cells allow whales to transfer oxygen more effectively than humans and other land mammals, and when submerged underwater their diving reflex allows them to distribute oxygen and blood to vital organs while restricting it in other non-essential areas. Balaenopteridae is from a Danish word meaning "tubed" or "pleated" whale. Blubber plays an extremely important role in a whales life. The reported global catch of Sei whales in the 1978-79 season was only 150, showing the dramatic drop in whale populations. Sei whales have a rel­a­tively slen­der body with a com­pressed tail stock that abruptly joins the flukes. It avoids polar and tropical waters and semi-enclosed bodies of water.... Wikipedia. Sei whale facts! websites where you found information AND where any media is linked Minke Whale | Bryde’s Whale | Sei Whale | Humpback Whale | Fin Whale | Blue Whale | Sperm Whale | Short Finned Pilot Whale | Orca/Killer Whale. How You Can Help: NOAA: Learn more about the Sei Whale's habitat, threats, and efforts being made for conservation. Many adaptations allow the huge creature, and other deep-sea organisms, to function normally at great depths. The baleen in their mouths filter the food for the other animals who feed on the algae and the clean the gook out of their mouths and the plaque off their teeth as well. Attention to dorsal -fin shape and position, head shape, and colour patterns will help to distinguish among the 3. Introduction to Mysticetes . Mammals are characterized by the following features: ... And sei whales don't migrate as far toward the poles as most species do. Baleen whales have a well developed sense of "smell", whereas toothed whales have well-developed hearing − their hearing, that is adapted for both air and water, is so well developed that some can survive even if they are blind. Hunting of these whales by humans has been high since the 1950s. Having blubber allows whales to maintain their body heat and survive in extremely cold environments that would otherwise be uninhabitable to them. Fin whale song 1 Fin whales, Balaenoptera physalus (Linnaeus, 1758), like all rorquals (Family Balaenopteridae, the family that also includes blue whales, Bryde’s whales, humpback whales, minke whales, and sei whales) these long, slender whales are much more streamlined than other large whales. Population Habitat & … In both sei and Bryde's whales, the dorsal fin rises at a steep angle from the back. Sei Whales are rorquals (family Balaenopteridae), a family of the baleen whales that includes the Humpback Whale, the Blue Whale, Bryde's Whale, the Fin Whale, and the Minke Whale. Physiological Adaptations Large whales have enormous appetites, adult blues have a daily energy requirement in the region of 6.3 million Kilojoules (1.5 million kilocalories). Manta ray no affected and remora gets food and transport. Balaenopteridae is from a Danish word meaning "tubed" or "pleated" whale. To combat this problem when a whale needs rest it goes into a semi conscious state and half of its brain shuts down, but the other half of the brain remains conscious allowing the whale to quickly  come up for oxygen and inhale when it needs to. It inhabits most oceans and adjoining seas, and prefers deep offshore waters. ... black whale, or blackfish, porpoise, right whale, rorqual, sei whale, sperm whale or cachalot, toothed whale, … Unlike smaller species these whales have a much lower risk of being attacked by a predator and thus do not need to rely on large pods or groups for protection. Having acute hearing when submerged underwater is also extremely important because sound travels 4 times faster in water than it does and land, and those who have developed good underwater hearing have the best chances of survival, especially species that have to worry about potential predators. Another adaptation whales developed to protect themselves is related to size. ... Locomotor adaptations …but the dwarf and pygmy sperm whales. What is an adaptation of a Sei Whale? These organs would act like floats or balloons. Rorquals take their name from the Norwegian word røyrkval, meaning "furrow whale",[14] because members of the family have a series of longitudinal pleats or grooves located below the mouth and continuing along … Photo courtesy of Christin Khan from NOAA. Over the course of evolution whales (or rather their ancestors) have evolved and adapted their physiology from living and walking on land to living solely in the ocean. A pod of Sei whales is spotted as the R/V Thomas G. Thompson conducted magnetic surveys of the ocean floor about 150 miles from Wake Island. The Southern Right Whale is a large black stocky whale that has a number of features making identification relatively easy. Gray whales migrate at about 10–11 kph (6–7 mph). They feed about 100 meters under the water as this is where you will find large groups of krill. Commerson’s dolphin; Dusky dolphin; Hourglass dolphin; Long-finned pilot whale; Orca; Peale’s dolphin; Southern right whale dolphin; Porpoises. 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