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1 Outline CAFÉ Workshop Update Dave: Interdecadal changes in cod/haddock growth MAB CPR Summer Plans Whales
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2 CAFÉ Workshop Update CAFÉ 2006, Nov. 7-8, Portland, ME –24 participants from 3 countries IgorBelkinRossHendry JimBisagniLewIncze Anne-MarieBrunnerPeterJumars CabelDavisLouiseMcGarry HeatherDeeseDavidMountain TedDurbinAndrewPershing SusanElstonBobPickart TomFarmerNathanRebuck CharlesFlaggGrahamSherwood CharlesGreenePeterSmith SirpaHakkinenPhilWilliamson EricaHeadYuyingZhang
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3 CAFÉ Workshop Update –Day 1: Arctic Climate Influences on NW Atlantic Early & late 1990s FW anomalies Good evidence early anomaly came from Arctic, likely through Canadian Archipelago Late anomaly is better described in GoM/MAB, but origins are less clear Contrasted GoM plankton changes with Canadian Shelf –Similar, but more winter-spring than fall-winter –Day 2: Top-down vs. Bottom-up drivers Some interesting top-down linkages, but trophic cascade not supported by data Cod in Newfoundland are food limited
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4 Gulf of Maine Time Series 199020001980199020001980 199020001980199020001980 199020001980199020001980 SalinityPhytoplankton CalanusCentropages typicus Right Whale CalvesHerring
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5 Mid Atlantic Bight Zooplankton Centropages typicus Calanus finmarchicus
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6 Mid Atlantic Bight Zooplankton –NMFS operates two continuous plankton recorder transects GoM: Boston to Yarmouth, NS MAB: New York to Bermuda –Questions: Does MAB show same 80s-90s pattern? Do the same species do the same thing?
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7 Mid Atlantic Bight Zooplankton Centropages typicus Calanus finmarchicus Paracalanus spp. Metridia lucens
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8 First Impressions In general, strong similarities to GoM –Inverse relationship between Calanus and Ctyp –80’s vs. ‘90s But –Different species have strongest response (Ctyp vs. Metridia) –No reversal in 2001 Some things to look at –Calanus, Calanus, Calanus
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9 Summer Plans Ocean Sciences session on “Arctic influences on Atlantic ecosystems” Continue CPR workup –Hope to expand analysis to entire shelf 1D modeling of freshwater anomalies and phytoplankton blooms Plan for CAFÉ 2007
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10 Right Whale, Wrong Time? Only 350 N. Atlantic right whales Recovery limited by mortality –Ship strikes –Fishing gear All management options depend on knowing where whales are
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11 Cetacean Informatics Model InformationData Where? When? Courtesy PCCS Chl SST Model InformationData Courtesy PCCS
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12 RWPS 1.0 Climatological circulation fields, initial conditions, boundary conditions –No interannual variability SST and Chlorophyll from 1998-2004 –Only source of interannual variability GSC CCB
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13 Whales vs. Model GSC CCB MBay WBas CLedg EGOM Front
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14 Whales vs. Model
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15 Whales vs. Model
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16 Implications for GLOBEC GLOBEC models are useful! Calanus abundance reflects conditions over previous months –Even a little data is valuable
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