Ships transport myriad marine organisms around the world in ballast water that may, when exchanged, introduce foreign species that become invasive in suitable areas. This study surveyed ballast water of eight foreign ships landing at the Norwegian archipelago of Svalbard, carrying out morphological and molecular analyses of the organisms on board.
Modern civilizations are depleting commercial fisheries leading to regulation excluding local indigenous peoples from traditional harvesting territories. This affects the Aleut peoples of the western Gulf of Alaska, who have depended on marine resources for nearly 10,000 years.
The Atlantic and Pacific are connected by the Northeast and the Northwest Passage, but unsuitable conditions above the Arctic Circle have thus far prevented the interchange of marine biota between oceans. The present study simulates the spread of species under future climate conditions, creating ecological niche models for 515 fish species based on GBIF-mediated occurrences and climate projections.