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Outline

• CAFÉ Workshop Update

• Dave: Interdecadal changes in cod/haddock growth

• MAB CPR

• Summer Plans

• Whales

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CAFÉ Workshop Update

• CAFÉ 2006, Nov. 7-8, Portland, ME– 24 participants from 3 countries

Igor Belkin Ross Hendry

Jim Bisagni Lew Incze

Anne-Marie Brunner Peter Jumars

Cabel Davis Louise McGarry

Heather Deese David Mountain

Ted Durbin Andrew Pershing

Susan Elston Bob Pickart

Tom Farmer Nathan Rebuck

Charles Flagg Graham Sherwood

Charles Greene Peter Smith

Sirpa Hakkinen Phil Williamson

Erica Head Yuying Zhang

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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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Gulf of Maine Time Series

1990 20001980 1990 20001980

1990 20001980 1990 20001980

1990 20001980 1990 20001980

SalinityPhytoplankton

CalanusCentropages typicus

Right Whale CalvesHerring

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Mid Atlantic Bight Zooplankton

Centropages typicus

Calanus finmarchicus

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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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Mid Atlantic Bight Zooplankton

Centropages typicus

Calanus finmarchicus

Paracalanus spp.

Metridia lucens

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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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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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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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Cetacean Informatics

Model InformationData

Where? When?Courtesy PCCS

Chl SST

Model InformationData

Courtesy PCCS

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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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Whales vs. Model

GSC

CCB

MBay WBas CLedg EGOM

Fro

nt

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Whales vs. Model

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Whales vs. Model

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Implications for GLOBEC

• GLOBEC models are useful!

• Calanus abundance reflects conditions over previous months– Even a little data is valuable