Reg Watson's Image Gallery

From the Sea Around Us Project and other collaborations

Energy content of protein in landings as a percentage of the fuel energy used to catch it

Energy content of protein in landings as a percentage of the fuel energy used to catch it (revised by Peter Tyedmers)

Fish (table fish) lb landed per person for the North Atlantic basin

Decrease in average maximum length of commercial fishes (cm)

Trophic web reduction - note the shorter food path to the right as intermediate trophic levels are removed.

Decrease in trophic level in the North Atlantic and globally in coastal waters since 1950.

Fuel used in commercial fishing in 2000 based on case studies and global landings.

Fishing down marine food webs = loss of higher trophic level species in commercial landings.

Mean depth of landings in metres - declining inshore stocks requires deeper fishing.

Mean distance of landings from shore (km) - declining inshore stocks requires fishing further offshore.

Trophic level decline in globally, in the NW Atlantic and in the NE Atlantic (Pauly et al. Science 1998).

Global catch rate of species destined for reduction.

Global use of fuel to land all catch and only reduction fishery catch.

Global consumption of species used in reduction fisheries by nesting seabirds 2001 (Vasiliki Karpouzi [v.karpouzi@fisheries.ubc.ca]).

Use of longline fishing gear in Pacific 2002-2003.

Use of trawl and dredge fishing gear in Pacific 2002-2003.

Real value ($US 2000) of global fisheries landings (Sumaila, U.R., Marsden, A.D., Watson, R. and Pauly, D. Global Ex-vessel Fish Price Database: Construction and Applications. Journal of Bioeconomics (In press))

Real price trends ($US 2000) of global fisheries landings (Sumaila, U.R., Marsden, A.D., Watson, R. and Pauly, D. Global Ex-vessel Fish Price Database: Construction and Applications. Journal of Bioeconomics (In press))

Collapse of global fisheries since 1950 in high and low biodiversity areas - Figure 3 from Worm, B., Barbier, E.B., Beaumont, N., Duffy, J.E., Folke, C., Halpern, B.S., Jackson, J.B.C., Lotze, H., Micheli, F., Palumbi, S.R., Sala, E., Selkoe, K.A., Stachowicz, J.J., and Watson, R. 2006. Impacts of biodiversity loss on ocean ecosystem services. Science 314: 787-790.)

Endangered marine biodiversity and fisheries (Time Nov 11/2006 reporting on Worm, B., Barbier, E.B., Beaumont, N., Duffy, J.E., Folke, C., Halpern, B.S., Jackson, J.B.C., Lotze, H., Micheli, F., Palumbi, S.R., Sala, E., Selkoe, K.A., Stachowicz, J.J., and Watson, R. 2006. Impacts of biodiversity loss on ocean ecosystem services. Science 314: 787-790.)