Marine Mammal Conservation
COM/172-Elements of University Composition and Communications II
July 28, 2013
Timothy Toole
Marine Mammal Conservation
There are 29 marine mammals on the endangered and threatened list produced by the National Oceanic and Atmospheric Administration. The US Fisheries and Wildlife foundation also have a list that includes certain seals, sea otters, and polar bears. There are many threats to marine mammals. These threats include dangers posed by humans and the environment. There are laws in place to help protect marine mammals from further dangers. Captivity has brought forth much controversy as to dangers it may pose to marine mammals. Marine mammal habitat conservation may be the only answer to protecting marine mammal life.
There are five characteristic that an animal must possess to be classified as a mammal. These characteristics include being warm-blooded, having hair or fur, having the ability to breathe air through lungs, the ability to bear live young, and the ability to nurse their young with milk produced by mammary glands (The Marine Mammal Center, 2013). Marine mammals also have a thick layer of fat called blubber that they rely on to keep them warm in the water. They have the ability to store up extra oxygen to aid them in staying under water for extended periods of time. Marine mammals spend a lot of time swimming, their bodies are streamlined to help them swim faster. One of the most important characteristics of marine mammals is their ability to direct their blood flow to their heart and lungs and slow their heartbeat down to preserve oxygen when diving (The Marine Mammal Center, 2013). There are five groups of marine mammals. Pinnipeds, Cetaceans, Sirenians, Polar Bears and Sea Otters. The Oceanic and Atmospheric Administration lists 29 different species on their list as of July 2, 2013. Their list includes threatened and endangered species in the US and foreign species as well (The Oceanic and Atmospheric Administration, 2013). The US Fisheries and Wildlife Administration also lists Polar Bears, Manatees, Sea Otters, and some species of Whales on their list (US Fish and Wildlife Service, 2013).
In 1972 Congress passed the Marine Mammal Protection Act. The Marine Mammal Protection Act is based on the following according to The National Oceanic and Atmospheric Administration (2013), “Some marine mammal species or stocks may be in danger of extinction or depletion as a result of human activities; These species or stocks must not be permitted to fall below their optimal sustainable population level; Measures should be taken to replenish these species or stocks; Marine mammals have proven to be resources of great international significance” (para 1). This was amended in 1994. The following was added according to The NOAA, “Certain exceptions to the take prohibitions, including for small take incidental to specified activities, when access by Alaska Natives to marine mammal subsistence resources can be preserved, and programs and authorization for scientific research; A program to authorize the taking of marine mammals incidental to commercial fishing operations; Preparation of stock assessments for all marine mammal stocks in waters under US jurisdiction; and studies of Pinniped-fishery interactions” (para. 2). There are also international laws in effect to protect marine mammals as well. Unfortunately, there are still many threatened and endangered marine mammals today.
There are many threats to marine mammal life. Humans pose a huge threat to these mammals. Fishing nets pose a major threat to marine mammals. Marine mammals who get caught in the nets are often unable to surface for the air they require in order to breath. Fishing nets such as, gill nets, trawling, and drift nets often catch marine mammals and cause them to be towed behind the boat. On occasion, the nets break loose but the marine mammal is still tangled in the net. This
Background Information The Marine Mammal Protection Act was enacted in October 21, 1972. The act protects the taking of marine mammals, in response to some animals reaching endangerment or near extinction. This act does not cover the protection or safety of animals. The fishing or capture is illegal but holds no substantial punishment for its abuse. Currently, large fines may be placed upon infringement, with no possibility of sentencing. One center of life surrounding mammal life in shallow water is…
dolphin’s next moves. Even the chilly morning breeze was like an icy perfume; it was refreshing, and I felt more alive than ever. ptivity causes many health problems in marine mammals. Many tanks have water full of chemicals and bacteria; this results in blindness and many skin problems in dolphins and other marine mammals. Marine mammals in captivity die from pneumonia, ulcers and other stress-related diseases. Most of these helpless creatures suffer from boredom. Dolphins in the wild can swim up to…
There are two types of whales, toothed whales (Odontoceti) and baleen whales (Mysticeti). Toothed whales are predators that use their teeth to catch squid, fish, marine mammals, etc. Baleen whales have a sieve-like structure called baleen that catches huge amounts of tiny krill for nourishment and as a food source. They are also generally larger than toothed whales; and there are 10 species of baleen whales. Different species of whales vary drastically in terms of both size and weight. Baleen whales…
People who doubt the sentientence of aquatic life is a giant issue because rights of animals is based on sentience and how well they show it. While it's debatable whether a jellyfish or anemone can suffer, it is clear that crabs, fish, penguins and marine mammals do feel pain, are sentient and are therefore deserving of rights. Some might argue that we should give jellyfish and anemones the benefit of the doubt because there is no compelling reason to keep them in captivity, but in a world where clearly…
Our planet has changed a great deal in its 4.6 billion years of life. Earth’s climate, tectonic plates, and organisms are constantly evolving as time goes on. 4.6 billion years is a very long period of time to study in-depth and it would be too confusing to organize all the events in earth’s geological and biological history into one division of time, so scientist have split them up in order to better organize and understand how earth was like at particular periods of time. We’ll start at the beginning…
Amongst Vertebrata Mammalia is an extensively adapted and diverse class. Hair and mammary glands are two defining features of mammals that set them apart from other vertebrates. At the end of the Cretaceous period, when dinosaurs went extinct, mammals were given the opportunity to rapidly evolve and become very prosperous. Within Mammalia one order in particular, Cetacea, shows widespread adaptation and diversification. Cetacea includes all whales, dolphins, and porpoises. These once terrestrial…
of the ocean’s most fascinating amphibious beings. They possess highly acquired communication skills and are believed to have an intelligence level equal to, and in some species, surpass that of the human brain. The biological, anthropological, and marine educational communities have studied the whale in a way that sheds light onto the studies of evolution as well. Yet, there are industries that subject these animals to captivity, hindering the natural development of these animals. Of all the communities…
and they affect three main species such as birds, marine mammals and fish. Oil spills affect birds because the oil gets on their feathers not allowing them to fly and they might get stranded in the water and drown. Also because birds rely on scent to find their babies the oil scent will overpower the bird’s senses not allowing them to find their babies. This will result in the babies being abandoned and starving. Oil spills affect marine mammals such as whales and dolphins. The oil can kill whales…
Have you ever rode on a dolphin before? Many people do not get to feel the exhilarating rush of doing so and won’t have the chance to soon if we don’t preserve the dolphin species. Dolphins are magnificent creatures who live unique lives and they’re mammals just like us! Humans are a big contributor to dolphins’ deaths year round, some places have even put a fine on the killing of dolphins to stunt its growth but only the people on this earth can stop it from happening. Dolphins are truly amazing animals…
impact is water pollution effecting ecosystems in the ocean. According to Clean Water Action, “In the ocean, plastic debris injures and kills fish, seabirds, and marine mammals. Marine plastic pollution has impacted at least 267 species worldwide, including 86% of all sea turtle species, 44% of all seabird species and 43% of all marine mammal species. The impacts include fatalities as a result of ingestion, starvation, suffocation, infection, drowning, and entanglement” (Moore). With all the…