Search results
Results from the WOW.Com Content Network
Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.
This photo was taken August 16, 2005 at the Charleston Road bridge, several miles west of Tombstone, Arizona. Estimated depth at this location is 5 feet. The San Pedro drains an area of approximately 4,720 square miles (12,200 km 2) in Cochise, Graham, Pima, and Pinal Counties.
By 2003, overfishing had occurred on 60 stocks. Another 232 stocks were not overfished. Overfishing had been stopped on 31 stocks, and a gain was made of 13 stocks that had been fully rebuilt. There were 617 other stocks which have limited data or for which criteria for overfishing had not been defined.
The overfishing list reflects species that have an unsustainably high harvest rate. NOAA also keeps a list of overfished stocks. Those are species that have a total population size that is too low.
Arizona is also one of the Four Corners states and is diagonally adjacent to Colorado. Arizona has a total area of 113,998 square miles (295,253 km 2), making it the sixth largest U.S. state. [1] Of this area, just 0.3% consists of water, which makes Arizona the state with the second lowest percentage of water area (New Mexico is the lowest at ...
The following is a timeline of the history of the area which today comprises the U.S. state of Arizona. Situated in the desert southwest, for millennia the area was home to a series of Pre-Columbian peoples. By 1 AD, the dominant groups in the area were the Hohokam, the Mogollon, and the Ancestral Puebloans (also known as the Anasazi). The ...
Later that week, I tackled another patch of the desert that covers 100,000 square miles across Arizona, California and Mexico, heading off-road in an all-terrain vehicle (ATV) into parts I was ...
Almost 12 years ago, a pilot flying a small plane over the desert in Arizona spotted something she would never forget. Pez Owen told NPR that when she noticed white crosses on the ground, ...