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Regional Stock Assessment in the Caspian

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A stock assessment workshop to which should be invited participants competent in ... Iran will join Azerbaijan in the assessment of anchovy kilka in the Caspian Sea. ... – PowerPoint PPT presentation

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Title: Regional Stock Assessment in the Caspian


1
Regional Stock Assessment in the Caspian
  • A stock assessment workshop to which should be
    invited participants competent in stock
    assessment from all five littoral States should
    be convened as soon as possible with the support
    of all five littoral States the assessment
    should be based on common, verified data
  • A manual should be produced summarizing
    international best practice in regional stock
    assessment, and presented to all Caspian
    countries as the basis of an acceptable stock
    assessment methodology for the region
  • Voluntary assessment expertise (e.g. experts
    taking leave of absence, but whose expenses
    should be covered) should be used if other
    funding for their participation is not available
  • A common database needs to be constructed for all
    species, if possible bringing data to a common
    format and including historical data. The
    workshop produced inventory of fisheries
    meta-data and methods, which will be used in the
    construction of the database.

2
Stock Assessment Data inventory
3
Stock Assessment Methods inventory
4
  • Regional assessments should be made as a matter
    of priority, with international participation and
    support in arranging by, for example, the FAO or
    the EU, sponsored by the five countries
  • The methodologies for sturgeon assessment in
    future should be standardized across all
    participating States, but should consider
    catch-at age data, survey data, and/or other data
    made available by any of the five littoral States
  • Caspian kutum (Rutillus frisii kutum) data are
    available for both Iran and Azerbaijan, so the
    countries will collaborate on an assessment
  • Iran will join Azerbaijan in the assessment of
    anchovy kilka in the Caspian Sea. Pilot
    assessment of kilka based on international catch
    and survey data was initiated by SMCFP

5
Kilka stock assessment
6
Kilka stock assessment
7
Kilka vs. Mnemiopsis
8
Hypothetical Mechanism of Stock Collapse and
Recovery in Ecosystem Context
9
Trophic cascades
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