Sea Lions Are Dying

How the lionfish got into these waters is not fully known. Some speculate that humans have dumped them into the oceans from home aquariums. Others believe that some were accidentally released

In 2008 the U.S Army Corps of Engineers observed 17 Steller Sea Lions eat 606 White Sturgeon below the Bonneville Dam. Which counted for 98 percent of the predation documented by sea Lions on Sturgeon that year. While California Sea Lions counted for 96 percent of the predation on Salmon and Steelhead that Year. As the facts shows the Steller Sea Lion is mainly the one preying on the White Sturgeon and the California Sea Lion is mainly preying on the

HOW HAS HUMAN ACTIVITY IMPACTED THE DECLINE IN POPULATION OF THE MACQUARIE ISLAND ELEPHANT SEAL?

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

Last Seen With- Populations have declined due to overharvesting, interactions with fisheries, accidentally being caught as bycatch in shrimp trawl nets, on longline hooks and in fishing gillnets, mistakenly swallowing plastic bags floating in the ocean, as well as habitat loss from sea level rise, uncontrolled coastal development, and. vehicle traffic on

Figure 1 is indicative of the on-going oxygen depletion trend. The graph shows the decline in the crab population. Many other aquatic animal and plant species are also affected.

An experiment documenting the effect of feeding low-quality prey like pollock to Stellar sea lions was conducted (Jeanniard du Dot et al., 2008). In the experiment there were two groups of Stellar sea lions, group H and group P. Group H was fed less herring and group P was fed pollock in equal amounts regarding caloric content. After feeding each group the restricted diets, the researchers recorded the foraging behaviors of the sea lions over the summer and the winter. All of the sea lions increased their foraging behaviors during the summer, when prey is abundant, but only group H conserved conserved energy during the winter when prey is less abundant. Group P did not reduce energy consumption in order to use energy more efficiently when it turned winter because they had less energy to use during the winter due to the low-quality diet, and that low-quality diets hurt the sea lions during times of nutritional stress (Jeanniard du Dot et al., 2008). A journal article also documented that young Stellar sea lions were more impacted by a low quality diet (Rosen, 2009). It was seen that young sea lions were more impacted by a low quality diet because of their higher energy requirements, and also their digestive capacity, which means they can't even consume a higher quantity of lower quality fish to compensate. Both of these experiments explain how low quality prey can

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

The United States of America’s west coast is home to a diverse population of aquatic creatures. Amongst those sea-dwellers is a kind of mammal called a California sea lion. The website Scientific American has published an article on how the amount of naturally occurring algae in the California sea lions’ habitats has reached an all-time record high in 2015. Though one may not see algae as a necessarily bad thing, when grown in excess amounts, the toxins in algae can accumulate and cause harm to the ecosystem. Some may ask, how does this affect west coast sea lions?

First of all, the reading highlights the fact that some sources of industrial released the chemical pollution into the sea which has caused the pollution of the water; as a result, the resistance of other would be declined and could cause their death. However, the professor contends that if the otters’ death is as a result of pollution in the water, the death animals would be existed on the beach.

They concluded that a single lionfish can have a reduction of up to 79 percent of a native reef fish species through either predation or competing for food. Here in the Florida Keys tourism has huge impact on the local economy. One of the bigger tourism platforms it has is diving and snorkeling. A Reduction to native marine life and coral reef health is a concern not only from an ecological aspect but an economic aspect as well. A significant amount of the keys revenue is reliant upon tourism. There is also the potential risk for envenomation to snorkeler’s and divers which is also a potential negative effect upon tourism as the lionfish is a venomous fish that can cause severe pain and even

Everyone knows that the lion population had declined through the years, but most people don’t know how many are left and the reasons behind their disappearance. Some lions have died off from natural causes such as a loss of habitat, food, and a water supply. However, their biggest threat is humans. Humans are the reason why there are so few lions left to roam the world.

RISE has been trying to come up with ideas on how to deal with the dead lionfish. One thought was to have sharks trained to eat them. Another thought was to use their remains as jewelry. It hasn’t been decided on what they will do. So far fishermen can kill lionfish in local reefs or shallow water but lionfish can survive at even greater depths. Machines are ultimately going to play a large role in controlling the lionfish population.

Losing these animals also results in losing coral reefs, which, if lost, ends the lives of over fifty thousand species of marine animals. The loss of these animals would disrupt the food chain, the water cycle, and it could have drastic effects.

Habitat loss happens when humans take away their habitat by destroying it to make things that benefit us as humans. Or by humans polluting their habitat, from waste such as garbage, oil, chemicals etc. There is said to be up to 30 beluga whales a year killed from fossil fuel extraction. Natural disasters also play a key role in habitat loss and deaths of beluga whales, the disasters may destroy their environment and kill many infant and full grown whales. They have competition from other whales and sea animals/creatures, which results in starvation and killings, although there’s not much we can do about it, it is still a reason they are