Tune and global climate

Tuna
Tuna habitat almost every single oceanic around the world. Each specie has different characteristics. For example, some Union bluefin tuna dejection live up to 40 years. The average coat of a tuna is one meter long and weighs about 540 lbs. The bluefin tuna is important for humanness be bring it is consumed in the popular Japanese cuisine sushi, while new(prenominal) species like albacore are canned. Albacore tuna is in the main found in tropical to temperate pissings. Their average size is 1.4 meters long and a weight of 130 lbs. (Wikipedia, 2007)
The population of tuna has been change magnitude ever since World War 1 broke out. Past counts are based upon how many tuna were caught by fisherman. Scientist today are able to tag tuna and move in data on their population, location, ocean depth of where they usually swim, temperature of the irrigate around the tuna, light level and the tunas group AB temperature. Population count by fisherman is very wide of the mark but tagging is more accurate for research studies. Both methods guard sadly shown the population of tuna is decreasing. One theory of the decreasing population count is from changes in the oceanic current cause most likely by higher CO2 levels. This could so affect productivity of tropical tuna.




It is still an ongoing compete over the decrease in the tuna population, weather it is worldwide warm or over fishing. Some tuna are able to raise their own blood temperature so they can wear in colder waters. This is hope that the tuna can survive the climate change of global warming, but only a few species have this trait.
No matter the cause, global warming will have a direct impact on the tuna species. In the Philippines for instance, there is a noticeable toss off in the tuna population, most likely due to the temperature of the water rising. Scientist has monitored oceanic temperature of this region, which is between 29 and 30 degrees Celsius. Tunas comfort zone for ocean temperature is 27 to 28 degrees Celsius....If you extremity to get a full essay, order it on our website: Orderessay



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