Pilchard Impact and Requirement Essay Example for Free

Pilchard Impact and Requirement Essay Pilchard or sardines are groups of small fishes which belong to the herring family. They are caught almost throughout the year especially in the night. Pilchards are rich in minerals and they are usually consumed in different ways. They are also referred to as low-value pelagic species. Pilchard and Tuna The introduction of tuna farming had a major impact on pilchard hunting simply because it was found to be a major source of food for the tuna. This resulted in an increase emphasis on pilchard research and farming. Pilchards are mostly used to feed carnivorous fishes such as tuna, trout and salmon. Pilchard farming requires marine scalefish fishers, not targeted for recreational purposes, provides feeds for predator species such as salmon, and tuna, fishing methods (use of small mesh and fishing done by night), and pilchard farming done in temperate waters. Pilchard farming is of great economic importance. About 20 pounds of pilchard is required to produce a pound of tuna, indicating a resource-intensive form of producing tuna and depleting the stock of small fishes. This will ultimately disrupt the aquatic ecosystem in that it will not only affect the fishes alone but marine mammals and seabirds directly or indirectly. Some documentation about the introduction of viral infection into the aquatic ecosystem has been documented. Several factors such as ecological integrity, social justice and status of the pilchard population must be maintained. Pilchard and Dolphins Dolphin swim license is indirectly related to pilchard in that pilchard is not farm for ecological purpose, and dolphin only feeds on them as an opportunistic predator. Dolphin feeding on pilchard will cause a major and drastic decrease in their population and subsequently leading to enormous financial loss. Conclusion Considering the immediate need for tuna fishes and the relationship between the fish and pilchard, the tuna license should be granted while licensing dolphin swim should not be allowed because of it the negative impact on the aquatic ecosystem, and associated financial loss. References Lopez, D. (2005). â€Å"Interaction between bottlenose dolphins and fish farms: could there be an economic impact†. Retrieved May 23, 2009 from http://www. thebdri. com/resources/downloads/ICES2005X10. pdf PIRSA Fisheries, (2009). â€Å"Sardine (Pilchard) fishery†. Commercial fishing Retrieved May 23, 2009 from http://www. pir. sa. gov. au/fisheries/commercial_fishing/sardine_pilchard_fishery Primary industries and resources, (2009). â€Å"Ecological assessment of the south Australian pilchard fishery†. South Australian fisheries management series. Retrieved May 22, 2009 from http://www. pir. sa. gov. au/__data/assets/pdf_file/0006/12858/sa_pilchard_submission. pdf Stuart, N. (2001). â€Å"Tuna farmers face fresh challenges†. Landline Retrieved May 23, 2009 from http://www. abc. net. au/landline/stories/s363097. htm

Modern Art: An Art of Expression and Freedom :: Modern Art Artists Dance Theatre Essays

I. Introduction Wherever man lives there is art, because art is anything made or done by man that affects or moves us so that we feel and see beauty. Man uses his imagination to invent a unique beauty. The artist's feelings and inspiration affects on how he will express his art. Through the major development of technologies and social changes that have taken place in the 19th century, Modern art flourished during this period and caused a lot movements of modern art to form, some of these famous movement are cubism, abstract expressionism, pop art, and surreal art. Modern art also become man’s inspiration in life because these great art can express a unique feeling in which a person is attracted to that kind. This also means that a modern artist learns from himself and does not need any major training, a modern artist learns by himself through his experiences and imagination. Modern art runs a very important role in man’s life throughout history, because it that does not only give us inspiration but also the freedom to express ourselves through the use of different mediums. II. Statement of the problem This research aims to answer the following questions: 1. What are the general informations about Modern Art? 2. What is the beauty of Modern Art? 3. What are the different styles in making Modern Art? III. Presentation A. Definition of Modern Art Parallel to the scientific, technological, and social changes that have taken place in the 20th century are the rich varieties of art styles that have developed. Notable are the number of â€Å"isms†, such as Fauvism, expressionism, cubism, futurism, constructivism, neoplasticism, surrealism, precisionism. Modern Art didn’t have a main origin from where it came from. But there is a general agreement that it was first seen between 18th century to 19th century, from the French revolutionist movement. Art in its broader meaning, however, involves both skill and creative imagination in a musical, literary, visual, or performance context. Art provides the person or people who produce it and the community that observes it with an experience that might be aesthetic, emotional, intellectual, or a combination of these qualities. Modern Art does not follow any traditional rule, in fact Modern Art breaks this barrier. In the traditional way of painting, you must the true nature of your work; you must have the balance in creating it. The rules that are working on our universe must be applied to the old traditional painting.

Basic Ecological Concept

Basic Ecological Concept Levels of Organization Cells- are composed of Cell Membrane, Nucleus and Protoplasm. Tissue-is an aggregation of cells performing a common function or functions. Organs- is the aggregation of tissues usually forming a definite shapes, and performing a definite function within an organ system. Organ System-is a group of organs that perform coordinated functions together to keep the organism alive and functioning well. The scope of the biology includes the study of all these and may extend to the level of the organism such as behavior, and the organism mechanism for interacting with its environment.Ecology started from the study of the organism-a group of organisms that is similar in appearance, behavior and genetic make up belong to the same species. The biological species concept state that members of a species are those individual that are genetically related enough to be able to interbreed and produce fertile offspring. Population The group of the individua ls belonging to one species and is found together in a define area at a certain time.A population possesses characteristics that more empirically describe the group such as: population Density, Dispersion, Natality, Mortality, Growth, Age Distribution, and Reproductive potential. Population Density Describe the degree of crowdedness of a population in a given area. Crude Density may be computed from the number of individuals or the total population biomass per unit space. Ecological or specific Density describes the number or biomass per unit of space that is actually available to the population. Dispersion The distribution of organisms over the space where they are found.Three pattern have been observed: clumped, random, and uniform. The clumped Distribution is the most common type of pattern since the soil or medium on which organisms are found in nature are not uniform. Random Distribution is rare in nature, occurring only where the soil is generally rich so that the plants can g row and thrive anywhere. Uniform Distribution is found in artificial cultivated areas. Natality/Morality Natality corresponds to what is termed in humans as birth rate or the number of new individuals produced in the pupolation for a period of time.Morality is known as death rate in human demographics, or the number of deaths in a given time period. Growth Is an important feature of a population since the increases or decreases of population size determines its interaction with other populations in the community and its impact on the environment. Age Distribution Is classifies the population according to age brackets or to general age groups such as prereproductive, reproductive and postreproductive. Reproductive PotentialThe Reproductive potential of a population is its theoretical capacity to produce the maximum number of offspring in ideal conditions. Community The community has properties that may be used to further clarify its composition and its interaction with the environmen t. Like species dominance, diversity, relative abundance, species richness and evenness. Dominance Is attained by a species in a community by virtue of a greater number of individuals, or by size such as the overwhelming sizes of sequoia trees, or any other attribute that enables the species to control the community. DiversityDiversity is the opposite of dominance, a case where no single species has greater number or biomass or other relative importance than other species in the community. Ecosystem The basic unit of ecology because it includes the living and nonliving components. The setting includes necessary nonliving components such as soil, water, air, and the cycles that keep and renew them, which are collectively called the biogeochemical cycles. Bioenergetics Energy is necessary for maintaining the life processes of organisms. The sun is the source of all the energy that goes into the ecosystem. The solar ystem is radiated on to the earth where a tiny fraction of it is tappe d by plants and used in photosynthesis. Solar energy released in the form of light waves called photons. Herbivores are organism that feed on plants. Carnivores are organism that feed on other organism. Omnivores are organism that consume both plants and animals. Food Chain The sequence of eating and being eaten may be described by food chain. It also indicates the role, the feeding mode and rank of each organism. Food Web A food web shows the various possibilities of the sequence of eating and being eaten in the ecosystem.There are two major types of food webs in the ecosystem: the grazing food web is the more conspicuous type because it is usually composed of large plants and animals that are familiar. Law of Energy First law of thermodynamics stated that energy is never created nor destroyed but is transformed from one form to another. Second law of thermodynamics states that as energy is transformed it degrades or diminishes. Biogeochemical Cycles Substances that organisms need to survive are called nutrients such as water, carbon, oxygen, nitrogen, and sulfur.Nutrients move through the ecosystem in cycles called biogeochemical cycles where bio refers to the living organism, geo refers to the inorganic molecules such as those found in rocks, air, and water, and chemical refers to the interactions of the elements between them. Water cycle Evaporation-the heat of the sun, or solar energy makes water vapor, which is water in gaseous form, continually rising from water bodies and from the land. Condensation-it brings water into the atmosphere where the water molecules clump together. Precipitation-the clumps get too big and too heavy, they fall back down to the earth.In the form of rain, snow, hail or sleet. Water cycle is the movements of several chemical substances through the ecosystem. Carbon cycle-During photosynthesis plants use up carbon dioxide, combining it with water to form sugars particularly glucose. Consumption of these sugars breaks them down re leasing CO2. Nitrogen Cycle-Nitrogen is an important component of proteins, the building block of all living matter. Fixation- the process of converting nitrogen from the gaseous state, N2 to the usable ammonia, NH3, and nitrate NO3.Mineralization or ammonification-involve the breakdown of dead organisms and their proteins and nucleic acids are further broken down into amino acids. Nitrification-where the bacteria such as the nitosomonas use ammonia to produce their energy needs by converting it. Denitrification- is the process by which nitrogen is returned to the atmosphere. Phosphorus cycle-the sedimentary rocks which contain phosphorus in the form of the mineral apatite comprise a pool phosphorus. Phosphorus is released when these rocks weather naturally, which takes along time, or when human mines these rocks to release phosphorus which is used to fertilizers soap.Sulfur cycle- a basically sedimentary nutrients cycles through air, soil and water. The sulfur cycle involves the th ree spheres as it cycle through the soil, waterway, and atmosphere. It originates from the crust and mantle of the earth and is spewed out during volcanic eruptions. It is found in the volcanic rocks and many minerals. Limiting Factors and the Law of Tolerance Law of the Minimum- states that when there is not enough of a certain nutrient in the environment, the growth of organism that needs that nutrient will be severely limited.Studies also show that too much of any nutrient will likewise limit growth, giving rise to the Law of limiting Factors. Sunlight and Temperature are two important physical factors that limit the distribution and abundance of organism. Species Interactions The population of two species may positively or negatively affect the existence of one another in the community. Mutualism- refers to the interaction between two species where both are benefited. Competition- is an example of a positive negative interaction when two species of the same species strive to obt ain the same limited resource.Predation- is an example of a positive negative interaction wherein the predator eats the prey. Parasitism- is another type of positive negative interaction wherein the hosts provide nourishment to the parasite. Commensalism- is a form of positive zero interaction wherein in the commensal also referred to as hitchhiker attaches itself to the host while the host is neither help nor harmed by the interaction. Amensalism- is an example of a negative zero interaction wherein one organism is inhibited while the other is not affected.

Capital Punishment A Cruel And Violent Process - 1343 Words

Thesis: Capital punishment is a cruel and violent process that is extremely expensive to many taxpayers, discriminating against one s race and well being in justifying cases, and overall has a negative effect on society. I. High in cost A. Life in prison B. Cost of taxes C. Cost of programs II. Discrimination in cases A. Wealth B. Racism III. Violent in application A. Cruel and unusual B. Denial and rights IV. Counters of argument A. Statistics B. Deterrence C. Life Capital punishment is a cruel and violent process that is extremely expensive to many taxpayers, discriminating against one s race and well being in justifying cases, and overall has a negative effect on society. A black male who was accused for murder was wrongfully†¦show more content†¦Joe Messerli states, Capital punishments costs nearly 2-5 times more than life in prison without the chance of parole. The extra cost to capital cases become outrageous, making the Death Penalty highly looked against. The Death penalty should substituted with a better sanction. This form of punishment costs thousands of dollars per case, one can see how tax dollars are adding up only to harm humanity. Abolishing Capital punishment is the solution. According to Joe Messerli, in long trial cases taxpayers end up paying for  ¨Judges, attorneys, court reporters, clerks, and court facilities ¨ during a capital case. All theses extra things that need to be paid for are all paid by the state s taxpayers, very unfair to society just to take the life away from one. In California taxpayers pay $90,000 more per inmate on death row than regular prisoners housed in jail ( ¨10 Reasons ¨). The Death Penalty costs today s society s taxpayers unreasonable amounts of money for the cases. Undoubtedly, the extra tax dollars being spent on these cases will negatively affect society, and removing Capital punishment will only improve the issue. During capital cases the extra expenses taxpayers pay for could be better spent on other programs bettering society. The extra costs that are spent on capital cases could be better spent on:  ¨education, roads, police officers, and public safety programs... ¨ ( ¨10 reasons ¨). The Death Penalty is an all round large investment that could be better