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NODC Accession 0114240 includes tows - undulating tow, tows and biological data collected aboard the NEW HORIZON, RANGE RECOVERER and THOMAS G. THOMPSON during cruises NH0005, NH0007, R0208 and T0205 in the North Pacific Ocean from 2000-05-30 to 2002-08-16. These data include BIOMASS, FLUORESCENCE and species abundance. The instruments used to collect these data include Undulating towed profiler and Optical plankton counter. These data were collected by Meng Zhou of University of Massachusetts Boston as part of NEP. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NODC on 2013-10-30. The following is the text of the abstract provided by BCO-DMO: This dataset includes ALL the biomass values, zero and non-zero. The data files are very large. In order to map the data, see the opc_ccs_nonzero (http://osprey.bco-dmo.org/dataset.cfm?id=14141&flag=view) dataset. In the 'nonzero' dataset, values of 0 in the 'biomass' column have been removed. For an alternate display, including both zero and non-zero data, see opc_ccs_alt (http://osprey.bco-dmo.org/dataset.cfm?id=14138&flag=view). In the 'alt' dataset, OPC size classes are displayed as rows in a 'size_class' column, rather than as separate columns. U.S. GLOBEC Northeast Pacific California Current Program Optical Plankton Counter (OPC) Data Contact for this dataset is: Meng Zhou Dept. of Environmental, Coastal and Ocean Sciences University of Massachusetts-Boston Boston, MA 02125 Email: meng.zhou@umb.edu (mailto:meng.zhou@umb.edu) Phone: 617-287-7419; Lab: 617-287-6186 FAX: 617-287-7474 This project addresses one of 3 central hypotheses of the U.S. GLOBEC Northeast Pacific (NEP) Study: Spatial and temporal variability in mesoscale circulation constitutes the dominant physical forcing on zooplankton biomass, production, distribution, species interactions and retention and loss in coastal regions.(U.S. GLOBEC Northeast Pacific Implementation Plan, U.S. GLOBEC Report No. 17). References: Rodriguez, J. and M. M. Mullin. 1986. Relation between biomass and body weight of plankton in a steady state oceanic ecosystem. Limnol. Oceanogr., 31, 361-370. Zhou, M. and M. E. Huntley. 1997. Population dynamics theory of plankton based on biomass spectra. Mar. Ecol. Prog. Ser., 157, 61-73. Zhou, M. and K. S. Tande. 2002. Optical Plankton Counter workshop report. International Global Ocean Ecosystems Dynamics Program Report, No. 17, 67 pp. For more Information about these data contact Dr. Zhou. Last modified: June 29, 2006