Impact of climate change on the distribution and habitat suitability of the world’s main commercial squids

Abstract Climate change is expected to have major negative effects on marine life across phylogenetic groups. Cephalopods, however, history characteristics that suggest they may benefit from certain climate scenarios. Of all cephalopods, squids reach the greatest biomasses; as a result, are of substantial importance for human and predator consumption. To test hypothesis beneficial commercial squid, we used species distribution models scenarios period between 2000 2014, well years 2050 2100 (RCP [representative concentration pathway] 2.6, 4.5, 6.0, 8.5; CMIP5). Our results consequences specific. In North Pacific Northwest Atlantic, squid’s habitat suitability increase (from + 0.83% [ Doryteuthis pealeii ] 8.77% Illex illecebrosus ]), while it predicted decrease in other regions − 1.03% opalescens 15.04% Loligo reynaudii ]). Increases occurred mostly at higher latitudes (north 50° N), suitable was tropical regions. These shifts future were stronger under harsher emission Starting (with RCP 4.6, 6.0 8.5), result warming Arctic, squid along both coasts America. Southern Hemisphere, lose with no poleward alternatives move into. Contrary our hypothesis, these do not stand change. Since an important food source megafauna humans, imperative biogeographic impacts considered sustainable management this group molluscs.