changing oceans: a census-nceas collaboration

Changing Oceans:A Census-NCEAS collaboration

Changing Oceans:A Census-NCEAS collaboration

Boris WormBoris WormRay Hilborn Ray Hilborn Heike LotzeHeike LotzeAndy RosenbergAndy RosenbergJeremy CollieJeremy CollieSimon JenningsSimon JenningsAnd othersAnd others

Major drivers in the anthopoceneMajor drivers in the anthopocene

Modified after Pauly & MacLean 2003, Island Press

Fishing

Eutrophication

Warming

The anthropocene biosphereThe anthropocene biosphere

• From large to smallFrom large to small• From low to high population growthFrom low to high population growth• From vertebrate to invertebrateFrom vertebrate to invertebrate• From benthic to pelagicFrom benthic to pelagic• From rare, specialized to From rare, specialized to

common, cosmopolitancommon, cosmopolitan• From cold- to warm adaptedFrom cold- to warm adapted

Size-based modelsSize-based models

Source: Collie et al. (2008) Can. J. Fish. Aquat. Sci. 65:1352-1365

Source: Collie et al. (2008) Can. J. Fish. Aquat. Sci. 65:1352-1365

Planned outputsPlanned outputs

• Effects of increasing temperature (book Effects of increasing temperature (book chapter, Fall 2009)chapter, Fall 2009)

• Effects of increasing fishing pressure Effects of increasing fishing pressure (NCEAS work, Fall 2009)(NCEAS work, Fall 2009)

• Synthetic review on changes in biomass Synthetic review on changes in biomass and size spectra, causes and and size spectra, causes and consequences (Spring 2010)consequences (Spring 2010)