| Papers [1-15] of 100 :: [Page 1 of 7] | | Go to page : 1 2 3 4 5 6 7 —> | Search results on "FISH POLAR OCEANS": |
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Fish In Polar Oceans, 1999.
Examines conditions conducive for the exploitation of cold oceans by fish, adaptations, dangers, growth rates, protein synthesis, migration and genetics.
1,800 words (approx. 7.2 pages), 16 sources, $ 63.95
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Abstract
"Despite the extreme harshness of the environment, there are many reasons for marine fish to attempt exploitation of polar and sub-polar oceans. In addition to the relative greater availability of oxygen in cold water (15), there are rich food supplies, making expansion into these regions a potentially good strategy at the evolutionary level. In
From the Paper
"Despite the extreme harshness of the environment, there are many reasons for marine fish to attempt exploitation of polar and sub-polar oceans. In addition to the relative greater availability of oxygen in cold water (15), there are rich food supplies, making expansion into these regions a potentially good strategy at the evolutionary level. In order to survive and thrive in such a habitat, polar fish have evolved physiological, biochemical and behavioral compensatory mechanisms to minimize the effects of exposure to the frigid waters. The mechanisms examined here not only allow these fish to exploit a rich habitat but also enhance their ability to expand their populations even further in the polar oceanic realms.
The low ambient water temperature seen in the oceans of polar regions profoundly impacts the marine life which is exposed ..."
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Polar Fish, 1997.
Examines extreme environment & need for & action of fishes' antifreeze glycopeptides.
1,350 words (approx. 5.4 pages), 4 sources, $ 47.95
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From the Paper
"This is an examination of the need and the mode of action of antifreeze glycopeptides found in polar fishes, especially the fishes of the Antarctic region. Continental drift working over geologic time periods caused the Antarctic continent to move from a temperate to a polar environment. The development of the Antarctic Convergence flowing along the edge of Antarctic waters created a thermal barrier which further isolated the local environment. The most important suborder of fishes inhabiting Antarctic waters, the Notothenioidei, underwent fundamental adaptations which allowed them not only to survive in the harsh environment, but eventually to prosper. The greatest danger to the fishes of supercooled waters like the Antarctic is the formation of ice. To counter the danger of lethal ice formation, the notothenioids have developed the ability to produce.."
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Environment, Food and People: The Crisis in Ocean Fishing, 2006.
A case study of Canada Cod Fisheries with respect to people and the natural environment.
2,025 words (approx. 8.1 pages), 5 sources, $ 80.95
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Abstract
This paper discusses how the relationship between humanity and the natural environment has frequently been an uneasy one. The paper further discusses that while humanity depends greatly upon a strong and vibrant global environment in order to ensure its own future human beings have for the most part done a woeful job of conserving scarce natural resources and of protecting vulnerable habitats. Because of the enormity of the topic this paper examines the present crisis in ocean fishing by looking at a specific region. Canada Cod Fisheries that has bears the scars of over fishing and poor conservation practices.
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World's Oceans, 2005.
An examination of "An Introduction to the World's Oceans" by Keith Sverdrup.
2,854 words (approx. 11.4 pages), 6 sources, APA, $ 84.95
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Abstract
This paper uses "An Introduction to the World's Oceans" by Keith Sverdrup to back up some of the serious issues raised through recent research conducted by the U.S. Commission on Ocean Policy, in particular, the ongoing and future pollution threats to ocean waters, citizens, and marine life. Journal articles also supplement the paper and the topics being reviewed.
Table of Contents
Introduction
The Economic Value of Oceans to Americans
Waste Dumping in Our Oceans
Oil Contamination from Various Sources
Toxins and Trash Entering the Oceans
The Depleted Fisheries
The Vanishing Wetlands
Conclusion
References
Endnotes
From the Paper
"The U. S. Commission on Ocean Policy reports that more than 28 million gallons of oil from human activities enter North American waters annually, but, according to an article in Issues in Science and Technology, "the bulk of human-related inputs is not due to large-scale spills and accidents that occur during the transport of crude oil or petroleum products" (Rabalais, 2003). In fact, researchers looking for sources of oil that runs into America's oceans can look into the "chronic low-level releases" of oil that add up to "roughly 16 million gallons of oil" annually, running down rivers and streams, according to the Rabalais article.
These oil pollutants "are most obvious in the watersheds that drain heavily populated areas," and the data from the U.S. Commission on Ocean Policy, plus the Sverdrup textbook, indicate that coast areas are becoming more and more heavily populated. Some of the 16 million gallons draining originates with "jettisoned aircraft fuel, marine recreational vehicles, and operational discharges, such as cargo washings and releases from petroleum extraction." "
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The World's Oceans and Climate, 2004.
Discusses the role the oceans have in climate control.
890 words (approx. 3.6 pages), 3 sources, MLA, $ 31.95
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Abstract
This paper looks at the vital role that the oceans play regarding the regulation and control of the world's temperature, winds, and precipitation.
From the Paper
"Through the agency of ocean currents, heat and cold may be distributed over thousands of miles, for it is possible to follow the course of a mass of warm water that originates in the trade wind belt of the southern hemisphere, where a good portion of the Atlantic and Pacific oceans can be found. This redistributing function of the ocean tends to compensate for the uneven heating of the globe by the sun. As it is, ocean currents carry hot equatorial water toward the poles and return cold water equatorward by surface drifts, such as the Labrador Current, and other deep water currents."
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Pollutants in the Ocean, 2002.
Looks at the different types of pollution in the oceans.
1,150 words (approx. 4.6 pages), 8 sources, $ 44.95
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Abstract
The following paper explores various types of pollution in the ocean. Pollution from oil spills, run-offs that result in toxic wastes in the ocean and the dumping of foreign particles in the ocean are discussed.
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Over-Fishing, 2004.
Examines the extinction of marine life due to over-fishing.
1,475 words (approx. 5.9 pages), 6 sources, MLA, $ 48.95
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Abstract
Over the centuries, man has made use of lakes and oceans to provide nourishment, but recently, that use has turned to abuse as more and more marine species face extinction due to our over-use of the ocean resources. This paper takes an example the grey nurse shark, which faces extinction within 7 years due to the lucrative fin market. Other issues connected to over-fishing discussed in this paper include by-catch, the whaling industry, and the threat to coral reefs around the world. The paper examines ways of reducing the problem of over-fishing through public awareness and consumer pressure.
From the Paper
"This particular issue is demonstrative of modern fishing practices. Along with causing the decline in fish populations, modern fishing techniques have also been altering the seas' ecosystems. Skimming large and medium-size fish off the top of oceanic food webs has left a disproportionate fraction of marine biomass at the lower end of the "pyramid of life" (Harder). Beyond skimming, by-catch species are also casualties of modern fishing practices, as we have already discussed."
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Ocean Pollution, 2002.
A study into the causes of pollution in the ocean and the grave effect it has on the ocean-life and waters.
2,012 words (approx. 8.0 pages), 7 sources, MLA, $ 63.95
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Abstract
This paper studies the causes and effects of pollution in the world's oceans. The paper lists the causes of this pollution, including oil spills, tanker discharges, untreated municipal wastes and agrochemical residues. In addition to these major causes, the paper also includes a look at the smaller ,yet more common causes, such as medical wastes, beach visitors? garbage and waterfront businesses.
From the Paper
"An ocean organism's internal environment is highly influenced by many external factors. Many marine invertebrates are conformers and have the ability to thrive around the world. They have no need to control their internal environment since the external environment is fairly constant in terms of temperature, oxygen tension, and nutrients. However, with the threat of pollution, the marine invertebrates ability to live within the dirtied and toxic waters are compromised, therefore, resulting in fewer numbers for reproduction, production and harvest."
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Global Warming and Rising Ocean Levels, 2005.
A combined research and ethics paper that examines the negative effects of global warming and their contribution to the rising ocean levels.
1,167 words (approx. 4.7 pages), 3 sources, MLA, $ 40.95
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Abstract
This paper presents facts about global warming and the effect it has, and will have, on the oceans and the delicate marine life and habitat. The discussion involves the melting of polar caps and the effects resulting from such devastation. The paper examines how warmer temperatures will destroy marine life and concentrates on the delicate coral reef system which is already feeling the effects of the warmer ocean temperatures. The temperature rise and ocean rise are discussed, along with ideas on halting the progression of dangerous toxins contributing to higher climate temperatures.
From the Paper
"As the coral reefs die, so do many other species of fish, crab and several other species. Large increases in the volumes of greenhouse gases in the atmosphere are already apparent. At current rates of change, carbon dioxide concentration in the atmosphere will double by the end of the next century (2100 AD). Calculations indicate that this rate of change in carbon dioxide alone will may result in a warming of between 1.5 and 4.5?C. The most likely effect of sustained global warming will be a melting of the polar ice caps, and a rise in sea level, while on land the deserts will expand."
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Ocean Tides, 2002.
A discussion of the causes and effects of ocean tides.
1,333 words (approx. 5.3 pages), 8 sources, APA, $ 44.95
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Abstract
This paper examines the topic of ocean tides, the periodic rise and fall of the ocean waters due to the gravitational pull of the moon and the sun on the surface of the earth. It looks at what causes tides, what are high and low tides, the different types of tides, the phenomenon of tidal currents and waves, the effect of tides on the coastlines and on fishing and how tides can be harnessed for energy. It also discusses other areas in which knowledge of tidal data can prove useful.
Outline
What Causes Tides?
High and Low Tides
Lunar and Solar Tides
Tidal Period
Spring and Neap Tides
Diurnal, Semi-Diurnal and Mixed Tides
Effect of Tides on Coastlines
Effect of Tides on Fishing
Tides in Gulf of Mexico and the Texas Gulf Coast Regions
Tidal Energy
Other Applications
From the Paper
"The gravitational force of the earth at its surface acts in an inward direction towards its center. This force keeps the ocean (and other) waters confined to the surface. At the same time, the gravitational force of the moon and the sun exert an outward pull on the surface of the earth. Since the earth solid surface is a rigid body, it remains relatively unaffected by this ?pull.? However, the ocean waters, being liquid and less rigid, are physically pulled outwards towards the moon and the sun by their gravitational force. This outward pull is not uniform over the earth?s surface since the gravitational force of the moon (or the sun) acts on the side of the earth facing it. Hence ?high tide? is produced in the ocean waters by the "heaping" action resulting from the horizontal flow of water towards regions of the earth facing the moon or the sun."
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The Changing Social Meanings of Fish, 2005.
A discussion of fish as a popular food source.
1,125 words (approx. 4.5 pages), 4 sources, $ 44.95
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Abstract
The paper examines how, in the early 21st century, fish is one of the most popular varieties of food in the world, and cod fish is the king of fish in the food service industry in the Western world. The paper describes how fish is acclaimed for its prominent role in gourmet cuisine and praised by nutritionists for its myriad health benefits. The paper discusses how this was not always the case.
From the Paper
"I have had a great love of fish for most of my life; a love that reached an apogee upon my coming to Canada and discovering the incredible range of both salt and fresh water fish available to Canadians. Indeed, in the early 21st century fish is one of the most popular varieties of food around the globe, and cod fish is the "king of fish" in the foodservice industry in the Western world (Civin 129). Today fish is acclaimed for its prominent role in gourmet cuisine, and praised by nutritionists for its myriad health benefits."
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Elizabeth Bishop?s ?The Fish?, 2004.
This paper analyzes the poem, ?The Fish?, by Elizabeth Bishop, a poet admired for her vivid, descriptive poetry.
1,045 words (approx. 4.2 pages), 2 sources, MLA, $ 36.95
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Abstract
This paper explains that Bishop?s observation in ?The Fish? not only creates an image of the fish for the reader, but also expands the scope of the poet?s appreciation for the fish. The author points out that, in this narrative poem, Bishop uses rhetorical and sound devices, as well as tone, metaphor, symbolism, personification, simile, and imagery. The paper relates that her great attention to detail allows us to understand the fish as Bishop does and, as a result, to understand why she sets the fish free.
From the Paper
"These lines illustrate the poet?s ability to capture details about the simplest and smallest of things. The poet utilizes the technique of hyperbole here by stating that the fish?s eyes were bigger than her own were. Her intention is to make us sense the life she became aware of when she looked into the fish?s eyes, which ultimately makes her feel sympathy for the fish. The action of looking into the fish?s eyes is also powerful in that it allows the poet to personify the fish. We also discover the poet?s use of an apostrophe here, which is emphasized by the poet?s looking into the fish?s eyes."
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Chemical Polarity, 2004.
An overview of the importance of polarity in bond formation.
1,956 words (approx. 7.8 pages), 6 sources, MLA, $ 62.95
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Abstract
This paper examines polarity, the unequal distribution of charges, and how bond formation and, hence, compound formation largely depends on it. It looks at how all properties of chemical compounds largely stem from their relative polarities and how life would not exist without elemental polarities. It provides a basic explanation of the different types of bonding between elements, such as ionic and covalent, as well the importance of these bonds in the creation of biochemical structures, such as proteins and DNA.
From the Paper
"Therefore, any molecule or ion (simple of complex) that has an internal unequal distribution of charges is a polar molecule. This is the definition of polarity. Since bond breaking or bond formation and chemical reactions occur by means of electron transfer, the availability (or lack thereof) of electrons and the ease in which one bond can break and another form depends on the polarities of the compounds involved. Every chemical reaction and every pharmaceutical product created depends on polarities and electron density distributions. Here is an example of electron transfer: nucleophilic substitutions reactions."
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Acid Rain and Freshwater Fish, 2006.
This informative paper examines the disastrous effects of acidic precipitation and aluminum toxicity on freshwater fish populations around the world.
2,360 words (approx. 9.4 pages), 6 sources, MLA, $ 72.95
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Abstract
This well-researched and detailed paper explores the effects of acidic precipitation (acid rain) which has been a major factor in fish kills throughout countries in the northern hemisphere. The writer of this paper cites numerous studies which have linked aluminum toxicity along with acid rain as the main cause of fish extinction. This paper stresses the urgency in developing a successful management tool in determining the viability of fish populations in various natural settings. This paper also contains detailed information and results of various case studies as well as two graphs that support the author's claims in this report.
From the Paper
"The fish used in this experiment were obtained from a trout farm which ensures the relative similarity of the fishes used in the experiment. They were acclimated to artificial soft water for 2 weeks before they were used in the experiment. They were then transferred to flux chambers for the experiment and given 24 to 48 hours to recover from the handling stress before they were exposed for 24 hours to low-pH water (pH 4.4, 4.8, or 5.2) A control group (N=36) for each of these pHs was left in these conditions for 10 days. The experimental group after this 24 hour exposure to low pH levels were exposed to concentrations of Al of 111, 333, or 1000 ug/L at the same pH (N=72)."
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Deep Sea Fishing, 2004.
An analysis of the environmental effects of deep sea fishing.
1,308 words (approx. 5.2 pages), 7 sources, MLA, $ 44.95
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Abstract
This paper describes the environmental impacts of deep sea fishing in general, with a focus on the issue of over-fishing. The paper examines the equipment utilized by deep sea fisheries, claiming that it may also impact the environment in a negative way. The paper contends that not only are habitats and eco-systems destroyed as a result of deep sea fishing, but entire species are on the verge of distinction, while other non-target species have also been impacted in a negative manner.
From the Paper
"The environmental impacts of deep sea over fishing are many, including detrimental reductions in fishing species/populations. Over fishing can result in a modified community species composition and reduced genetic diversity through "selective targeting on species and particular size classes" (Shotton, 2003). Over fishing has the greatest impact on the environment at large. Reductions in genetic diversity and in species or populations alter the composition of habitats and can impact the environment in many ways. Coral reefs are one example, facing extinction because of a lack of herbivorous species to keep algae in check."
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