Most marine biologists believe that last year's warm winter was to blame, making the fish stay farther offshore and several hundreds of meters deep to find suitable temperatures.
多數的海洋生物專家認為，去年天候多屬「暖冬」型，南下的冷氣團較弱，再加上東北季風不強，台灣海峽東域水溫較高，因此南下洄遊的烏魚遠離台灣沿岸，潛伏在數百公尺的深海裡。