Krill

Antarctic krill are usually less than 6 cm in length but their size belies the major role they play in sustaining much of the life in the Southern Ocean. They are the primary food source for many species of whales, seals, penguins and fish. Studies have shown that stocks of krill in Antarctica have declined dramatically in recent years. The reason for this is likely to be a fall in the amount of sea ice in the winter months in the Antarctic Peninsula region. Krill numbers in this region may have

Krill, also known as “pink gold,” are tiny zooplankton that are found in the ocean. These small creatures have been living in the worlds oceans for many centuries. However, it is very difficult to answer when exactly the krill species was discovered because of the fact that krill have no fossil record. Instead, scientist compared the rDNA of krill to rDNA of krill ansestors. The estimated discovery of krill is about one hundred and thirty million years ago (Jarman par. 1). Krill are tiny shrimp like

Antarctic Krill Antarctic krill (Euphausia superba) is one of the most abundant organisms in southern ocean, with a total biomass of hundreds millions of tons. It is a cold water species and they mainly feed on marine algae. Their lifespan is five to six years and they can grow up to six centimeters long. Atlantic krill start life as eggs that sink and hatch in spring. They develop though Nauplius, Metanauplius, Calyptopis stages and reach the fourth stage - furcilia - by winter. Antarctic krill that

CONTRACT No. FRKL145 Between the undersigned: Bradiaga Krills Ltd, a company whose head office is located at 5 Profsouznaya st., Murmansk, Russian Federetion, represented by General Manager Mr. Ivan Ivanov hereinafter referred to as the “Seller” on the one hand and Bizzard Ltd, a company whose head office is located at 34 King st., Aberdeen, United Kingdom, represented by General Manager Mr. Elton John hereinafter referred to as the Buyer on the other hand WHEREAS the Seller

Scott McWhirter English 101 Section 043 Professor Hayes March 31, 2011 Bitzer’s “The Rhetorical Situation” “Penguin responses to climate change in the Southern Ocean” by Jaume Forcada and Philip N. Trathan (2009) was a study conducted to analyze and predict the migrating patterns of different species of penguins due to changes in climate. (p. 1618) Also, Forcada and Trathan investigate whether or not certain species of penguins possess phenotypic plasticity (the ability of an organism to

Krill are small fishes and are near the bottom of the global food chain Krill are considered an important trophic level as they feed on phytoplankton, microscopic, single-celled plants that drift near the ocean’s surface and live off carbon dioxide and the sun’s rays Krill in turn are the main staple in the diets of hundreds of different animals, from fish, to birds, to baleen whales Global warming is the increase of Earth's average surface temperature due to greenhouse gases that collect in the

Effect of Global Warming on Penguin Populations When you think of Antarctica, what do you think? The bitter cold? The cute penguins waddling around? Studies show that Antarctica isn’t so cold anymore. The icy continent has been reaching temperatures above freezing, and it is affecting the penguins in a negative way. Because of the rise in temperatures, habitat loss, shortage of food, and commercial fishing, penguins have been threatened with the possibility of extinction. According to a new study

If whaling continues in the SOWS, it may lead to irreversible effects to the ecosystem of the Southern Ocean. A steady decrease in whale populations can have a top-down effect on many other species in the ecosystem, especially penguin, seal, and krill. The reasoning is because whales are a keystone species in the Southern Ocean (Ainley,

south pacific during the winter months. During the summer months in the Antarctic the ice begins to melt releasing air bubbles and nutrients which phytoplankton feed on. Krill, a small shrimp like crustacean, feeds on plankton. The abundance of this plankton, and because of the small number of animals that eat it, has allowed Krill to reproduce in vast numbers and millions upon millions of them will mature to adult hood. This is an

Survey in 2004 emphasized that Antarctic krill numbers are declining. Krill are very significant to the Antarctic food web and this decline could threaten whales, seals and penguins all of which rely on krill. The decline of krill has been associated to a intense decline in sea ice, their habita. Sea ice is a vigorous feeding ground for the enormous number of krill in the Southern Ocean. The research shows that krill decreased by about 80% since the 1970s. Krill feed on the algae which are found under