Tune and global climate

Tuna Tuna habitat almost perpetuallyy wizard oceanic nearly the world. Each specie has different characteristics. For example, close to Union bluefin tunny dejection live up to 40 years. The average coat of a tuna is unitary meter long and weighs about 540 lbs. The bluefin tuna is historic for humanness be bring it is consumed in the popular Japanese cuisine sushi, while new(prenominal) species like albacore atomic number 18 nookyned. albacore tuna is in the main found in tropical to temperate pissings. Their average size is 1.4 meters long and a angle 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. Popul ation count by fisherman is very good of the mark but tagging is more accurate for research studies. twain methods guard sadly shown the population of tuna is decreasing. One speculation of the decreasing population count is from changes in the oceanic up-to-date cause most potential by higher carbonic acid gas levels. This could so affect productivity of tropical tuna. It is still an on-going compete over the decrease in the tuna population, weather condition 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 orbiculate warming, but still a few species have this trait. No matter the cause, global warming will have a direct invasion on the tuna species. In the Philippines for instance, there is a observable toss off in the tuna population, most likely due to the temperature of the water rising. Scientist has monitored o ceanic 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, place it on our website: OrderCustomPaper.com

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