Which of these is generally not an el niño effect? an increase in rainfall in west coastal countries or states of the american continents a decline in the exotic species of fish and other forms of marine life in the affected waters. a rise in the sea level off the coasts of the american continents. an often catastrophic decrease in the commercial fisheries of the affected countries. an increase in ocean surface temperature in the eastern pacific.

A decline in the exotic species of fish and other forms of marine life in affected waters

Explanation:

El Nino, or rather the Southern Oscillation, is a naturally occurring event that has big effect on the climate. Its effects are mostly felt in the eastern Pacific, but it has influence on the global climate as well. El Nino is warming up the waters of the eastern Pacific, which in turn causes droughts, intensive rainfall, large storms, which affects heavily the people living along the western coast of the Americas, especially South America.