Differences in methods of studies may contribute to this variability. Spawning takes place across most months of the year in tropical regions of the Pacific Ocean, becoming seasonal at higher latitudes when sea surface temperatures are above 24 °C.
Differences in research approaches can contribute to this disparity. Spawning events occur across most months of the year in tropical areas of the Pacific Ocean, but become more predictable at higher latitudes where sea surface temperatures are consistently above 24 °C.