The Dramatic Effect of El Nino on Southern California's Seal and Sea Lion Population

At the beginning of our winter, the El Niño phenomenon left several dramatic effects on the seals of seals and sea lions in Southern California. Since June 1997, about 6,000 marine mammals have been killed on San Miguel Island, 50 miles from the Ventura Coast. This island is the most populous area of ​​seals and sea lions in southern Alaska. Scientists estimate that 85,000 to 180,000 California sea lions will breed on this island and other Channel Islands. There are about 11,000 Northern Seals on San Miguel Island.

The El Nino phenomenon exerts a great influence on seals and sea lion everywhere, puts out many dead, paralyzes the surviving people. Thousands of people died in South America alone. In the height of the recent El Niño phenomenon, the surface temperature of the Pacific Ocean near Perakas Peninsula in Peru rose from a cool normal range of 56 to 58 degrees Fahrenheit to 81 to 83 degrees Fahrenheit. As a result, schools of anchovies and sardines moved to cold water, they continued to feed on their plankton, and the regional sea lion was forced to leave.

During the El Niño phenomenon, it is observed that many seabirds producing bird droppings abandon their nests, move and die. It was estimated that up to 85% of seabirds died in Peru during the El Niño era from 1982 to 1983. The most common adverse effects that the El Nino phenomenon exerts on the seabird community are floods in the nesting land, changes in the atmospheric circulation pattern, rising sea surface temperature, and movement of fish, the main food source. The influence of the El Nino phenomenon on sea birds has yet to be elucidated. These effects seem to be limited to the eastern and central Pacific regions, but they have not been confirmed yet. The study showed that a calm El Nino can lead to conditions that these birds can adapt. However, the powerful El Niño phenomena exacerbated these situations and resulted in the death of numerous birds. If this is true, past El Niño may be responsible for regulating the birds currently living in the East Pacific.

Essay.com/"El Nino and its impact on coral reef "What is El Niño?" How does it affect the ocean?