Sea Otters Population In Alaska Coast: Passage Analysis

I believe that underwater noise has an effect on marine animals such as whales. Using information from the passages I will prove my point. Their numbers are declining rapidly and I believe that underwater noise has some involvement in the rapid decrease in their population numbers. The information given within the two passages will help prove my point.

For many of years animal activists have been trying to put a stop to all animal hunting, abuse, using animals for supplies. The problem with doing this is that it may effect a large amount of people who live off of these animals, in particularly the seal. The Canadian Inuit is a large group of people about 46,000 people as an estimation, that use seals as a multi source. The Canadian Inuit use the seal for a source of cash through fur sales, they used the seal for meat, and once used seal for oil lamps. In 1980 animal rights activists got their way and made it so that seal hunting was no longer legal. This affected thousands of Canadian Inuit who lived in small arctic hamlets who lived off of seal. The question is who is better off the Canadian Inuit, or the animals rights activists?

Sea Otters as well as many other species are in danger because of Climate Change.The sudden change in climate has disturbed the ocean’s temperature which causes an insufficient amount of food for sea otters which causes the otters to be malnourished and starved. Because of the change in climate there has been a decrease in the amount of harp seals (Foley, 2013) which happens to be the killer whales main prey, because of this the killer whales have now turned to sea otters. Other likely threats to sea otters because of climate change are ocean acidification in the north Pacific, pathogen transport, marine invasive species, biotoxins withdrawn in bivalve prey, and the recurrence and intensity of storm events (Doroff and Burdin, 2015) . Sea otters have a noticeably solid influence on the wealth of kelp through the impact they have on sea urchins, said James A. Estes, a professor of ecology and evolutionary biology at the University of California, Santa Cruz who was a co-author on Schmitz 's 2014 review and on the original sea otter study. Otters eat urchins. Urchins eat kelp. So in ocean patches where otters are bountiful, urchin populations collapse and kelp tends to thrive (Estes,Cruz and Schmitz,2014). The study, led by Wilmers and published in 2012, found that across the otter 's range the animal could be indirectly at fault for getting rid of as much as 8.7 million tons of carbon dioxide, more than twice what an average

In this article “saving the sea otters is just part of her normal day at work” by Kitson Jazynka My Opinion was that I think a lot of the sea mammals are dying because the bacteria in the water. First of all,”Otters in Alaska have been dying at a higher than normal rate over the past 10 years.”This quote

The sea animal I chose was a southern sea otter. Sea otters inhabited the North Pacific Rim of the Pacific Ocean, from Hokkaido, Japan, through the Kuril Islands, Kamchatka Peninsula, Commander and Aleutian Islands, Alaska, and south along the west coast of North America down to Baja California, Mexico. Scientist have evidence found in fossil records, that sea otters and their relatives have been a major part of the California’s ecosystem for the past five million years but by 1830 sea otters became very rare in California. Scientific evidence to suggest Otters have been on Earth for the past 23 million years. It is speculated that the Otter as it is today could have evolved monumentally about 7 million years ago.

In the listening passage, professor focuses on 1 effect of rapidely declining of sea otters in Alaska coast in North America has more affect. In the reading passage, 2 causes of this event are presented. One of them is pollotion that is made by chemical factories and also attacing predators such as seals, sea lions, and orca. The professor emphasis that attaching prdators has more effection on declining sea lion rather than pollotion. She has some reasons for supporting his oponion. First one is that there are a few chemical factories and also the amount of their pollotion is low therefore, pollotion has weak affect on death of sea otters. Second one is that the predator animals disappear due to their changing diet. Third one is that in some

A chestnut colored, furry blur races past you as you are paddling your boat in a North American lake. You wonder what it could be! It is a river otter. In this essay, I will be telling you about this interesting member of the weasel family.

In the 1700-1800s sea otters were nearly hunted to extinction. They became listed under the Marine Mammal protection and Endangered Species Act and the gained protection with the signing of the International Fur Seal Treaty of 1911. Sea otters eat many of the same shellfishes that humans like to eat, such as sea urchins, crab, and lobster. Since sea otters like to eat the same kinds of food we do they often find themselves in the same areas where fisherman fish at. Some shell fishers see the sea otters as a competition and a threat to their fishing areas. To help them eliminate their problem of the sea otters they have fishing gear that entangles them which causes them to drown. The fishing traps and nets poses as a major threat to sea otter population.

The presence or absence of sea otters influences marine ecology at the community-level. Studies have shown that kelp forests enhance the underwater environment, providing a suitable habitat for fishes. The declining kelp beds in California in the mid 1900’s propelled the Kelp Habitat Improvement Project, whereby attempts were made to eliminate sea urchins that are primary predators of kelps. Studies showed that the elimination of sea otters during the 1800s from the Californian waters might be responsible for the dwindling numbers of kelp forests. Further studies have also shown that the population density of sea otters affects seaweed biodiversity as well. In a study conducted in Alaska on three different bays, the Torch Bay, Deer Harbor and the Surge Bay, it was found that the presence of sea otters led to a decrease in the population of sea urchins, which led to an increase in the population of seaweeds. In addition, it was also found that annual kelps predominated the areas where sea otters were present, and perennial kelps predominated in areas that had lesser sea otter populations (qtd. in “Interaction with kelps & sea otters”).

The North American River Otter is one breed of the Lontra, or otter. This animal is a quick, intelligent, and clever hunter. Although hunted for their beautiful pelts, river otters are still found in almost every region. They are smart and playful, and very outgoing creatures. This paper, will discuss why river otters are one of the most amazing animals.

North American River Otter: Least concern ver 3.1 it is considered least concern as the species is wide spread and is not having a dramatic drop in population numbers.

Did you know, that sea otters hold hands with other sea otters when they sleep, so they don’t drift apart? Well it is safe to say that a sea otter is not an ordinary animal and that is why they have a very interesting way of living.It is common that when a sea otter is fully grown, it gets thick brown fur which makes it an easy target for hunting, which is another example of why sea otters are becoming extinct.

Marine animals are suffering dramatic rises in disastrous illnesses such as nervous and digestive system problems, liver disease, along with growth and development issues. More than 100,00 animals die every year after ingesting/being tangled upon plastic bags, these animals include sea turtles, seals, sea lions, seabirds, fish, whales, and dolphins. The deaths of all these animals impacts the food chain majorly. For example, sea otters eat sea urchin and invertebrate. If the otters went extinct then the sea urchins would devour kelp forests which would affect many marine life from starfish to sharks. Sea otters also help fight climate change by restoring aquatic carbon-fighting plants. Just imagine what the world would be like if out of the

Even Mother Nature knows how strong love can be - and these otters prove it right! Two otters were caught on camera in the Vancouver zoo, showing how they keep each other from drifting away, and when you see it, you will surely want to cuddle them!

It contains an expanse of tundra with many marshes and lagoons with rivers situated between foothills of the Brooks Range and the wide, icy waters of the Beaufort Sea. Environmentalists said that this area “is the most biologically productive part of the Arctic Refuge for wildlife and is the center if wildlife activity.” The importance of these resources is not measurable. The Arctic is home to such animals as caribou, polar bears, grizzly bears, musk oxen, whales, wolves and snow geese. This area is full of wildflowers and contains water of excellent, unpolluted quality and quantity. The Arctic Ocean costal plain is an area critical to the survival of many birds and mammals (‘Alaska Wild’).