WWW PICES
Report 43 (July 2013)

Report of Working Group 23 on Comparative Ecology of Krill in Coastal
and Oceanic Waters around the Pacific Rim

   
  Full report [pdf, 2 Mb] (Right-click and choose "Save Target As..." to save it on your computer)
   
  Executive Summary 5
     
  1. Introduction 1
    1.1 A Proposal for the Formation of a Working Group on Comparative Ecology of Krill in Coastal and
Oceanic Waters around the Pacific Rim
1
    1.2 Outcomes of WG 23 beyond the Terms of Reference 3
       
  2. State of Knowledge of Comparative Ecology of Krill in Coastal and Oceanic Waters around the Pacific Rim
5
    2.1 U.S. GLOBEC Pan-Regional Synthesis - Comparative Ecology of Krill in Coastal and
Oceanic Waters around the Pacific Rim
5
      2.1.1 Introduction and Background 5
      2.1.2 Synthesis of Observations and Experiment 6
      2.1.3 Synthesis through Modeling 7
      2.1.4 Synthesis of U.S. GLOBEC Observations: Copepod and Krill Observations off Oregon 9
      2.1.5 Synthesis of Krill Ecology in Coastal Waters off Oregon and Washington 10
      2.1.6 Synthesis and Resource Assessment and Management 11
      2.1.7 Proposed Pan-Pacific Research 11
      2.1.8 Topics and References on the Ecology of Euphausia pacifica 13
    2.2 Ongoing Research Relevant to WG 23 Activities 14
       
  3. Country Reports 15
    3.1 Canada 15
      3.1.1 Time Series of Abundance, Biomass, and Species/Size/Age Composition 15
      3.1.2 Bioacoustic Sampling and Analysis 17
      3.1.3 Spatial Distribution and Krill Aggregation Mechanisms 18
    3.2 Japan 21
      3.2.1 The ODATE Collection 21
      3.2.2 Distribution 21
      3.2.3 Seasonal Cycles 22
      3.2.4 Spawning 22
      3.2.5 Species Composition and Growth in the Oyashio 23
      3.2.6 Lipid Analysis 24
      3.2.7 Genetics Studies 24
    3.3 People's Republic of China 25
      3.3.1 Distribution and Seasonal Variability 25
      3.3.2 Diel Vertical Distribution 25
      3.3.3 Abundance 25
      3.3.4 Spawning 26
      3.3.5 Recruitment 27
      3.3.6 Life History Parameters 27
    3.4 Republic of Korea 28
      3.4.1 Distribution 28
      3.4.2 Diel Vertical Migration 28
      3.4.3 Lipid Analysis 30
      3.4.4 Dietary Lipid Biomarkers 31
    3.5 Russia 32
      3.5.1 Distribution 32
      3.5.2 Seasonal Variability 33
      3.5.3 Diel Vertical Migration 34
      3.5.4 Caloric Content 34
      3.5.5 Long-term Variability of Euphausiid Stocks 35
    3.6 United States of America 36
      3.6.1 Sampling Programs 36
      3.6.2 Spatial Distribution 38
      3.6.3 Vertical Distribution 39
      3.6.4 Seasonal Cycle of Spawning 40
      3.6.5 Seasonal Cycles of Abundance 40
      3.6.6 Life History Parameters 42
      3.6.7 Lipid Analysis 50
      3.6.8 Carbon:Nitrogen (C:N) Analysis 51
      3.6.9 Population Genetics 52
       
  4. Euphausiids in North Pacific Continuous Plankton Recorder Sampling 53
    4.1 Background 53
    4.2 North Pacific CPR Data 53
      4.2.1 Seasonal Cycles 54
      4.2.2 Interannual Variability 55
           
  5. Modeling 57
    5.1 NEMURO Model 57
    5.2 Individual-Based Models and Bio-physical Models 57
         
  6. Other WG 23 Activities 59
    6.1 Euphausiid Live Work Protocol 59
    6.2 Zotero Publications Database 60
    6.3 International Collaborations 60
      6.3.1 Visiting Scientists 60
      6.3.2 Laboratory Visits 61
      6.3.3. Collaborative Sampling 61
           
  7. Literature Cited 63
         
  Appendix 1 WG 23 Membership 71
  Appendix 2 Euphausiid Length Conversion Equations 73
  Appendix 3 Questionnaire for Euphausiid Experts 75
  Appendix 4 WG 23 Annual Reports and Topic Session/Workshop Summaries 79
  Appendix 5 PICES Press Article 97
 
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