Sep 8, 2017 - Brian ~ r y ' ~ ' , Renato B. ~uiiiones~. ' Ecosystems ... Institute de Fomento Pesquero, Zonal Talcahuano, Colon 3656, Talcahuano, Chile.
MARINE ECOLOGY PROGRESS SERIES Mar. Ecol. Prog. Ser.
Vol. 112: 201-204.1994
Published September 8
NOTE
Biomass spectra and stable isotope indicators of trophic level in zooplankton of the northwest Atlantic Brian ~ r y ' ~Renato ', B. ~ u i i i o n e s ~
' Ecosystems Center, Marine Biological Laboratory, Woods Hole. Massachusetts 02543. USA Institute de Fomento Pesquero, Zonal Talcahuano, Colon 3656, Talcahuano, Chile
ABSTRACT: We collected size-fractionated zooplankton samples from Georges Bank, the Gulf of Maine and 2 stations in the Sargasso Sea to test whether regular patterns of biomass decrease in the mesozooplankton community are accompanied by an increase in trophic level. Using stable nitrogen and carbon isotopic compositions as trophic level indices, we generally found small changes in trophic level (
