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SCAITE Questionnaire Summary. By Dario W. Diehl and Ken Schiff. Presentation Topics. Results Categories to standardize Discussions on Standardizations. Respondants. POTW – 4 Consultants – 2 Academic – 1. SAMPLING. Representativeness. Precision.

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SCAITE Questionnaire Summary


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scaite questionnaire summary

SCAITE Questionnaire Summary

By

Dario W. Diehl and Ken Schiff

presentation topics
Presentation Topics
  • Results
  • Categories to standardize
  • Discussions on Standardizations
respondants
Respondants
  • POTW – 4
  • Consultants – 2
  • Academic – 1
precision
Precision
  • Time on Deck: 10 min exactly (6), 8-11 min (1)
  • Time on Bottom: 8-15 min (2), only deck time (1)
  • Distance on Deck: 450-600m (1), 450+/-10% (1)
  • Speed: 1.5-2.0 knts (1), 1.5-2.5 (1), 1.7-2.1 (1)
retrawling
Retrawling

Other re-trawl conditions: low catch (2), not bottom contact (2)

slide8
Gear
  • Cod end mesh size: 1.3 cm (4), 0.64 (1)
    • Body mesh size: 3.8 cm (2)
  • Net length: not sure (3), 8 m (1)
  • Net Opening: 7.6 m (4), 8 m (1)
  • Otter Board: 76 x 50 cm (4), variable (1)
  • Bridle length: 23 m (4)
taxonomy
Taxonomy
  • All ID to lowest taxon possible
  • All voucher, depends –Agency , taxon, project
  • Voucher verification: as needed on specimen or photo IDs, mostly internal review
  • External verification: outside (3), Bight (3)
    • Mixed corrective actions: usually review/retraining
fids abundance
FIDs/Abundance
  • Preservation: freeze(4), photo(2), formalin(5), alcohol(5): 95%ETOH, 70% ETOH, 45% Isoprop
  • Verify Counts: Crew chief(4), Chief Taxonomist
  • Frequency: 8sp/cruise(2), twice daily, one/day, after survey, only Bight, NA, only measure 125/sp then weigh the rest
  • Count error: 1%, <5%, 10%(2), NA (3)
biomass
Biomass
  • Verify Biomass: Yes(5), No, at office
  • Frequency: 8sp/cruise(2), twice daily, one/day, after survey, only Bight, NA
  • Biomass error: 2.5%, <10%, 10%, NA
  • Performance Measures: No (5), Yes (2)
personnel and training
Personnel and Training
  • Range in Crew Chief requirements was perhaps the most variable
    • 1 to 10+ years experience, job classification, skill base needs, virtually no ongoing training
  • Taxonomists required the most experience and skill knowledge
    • Performance requirements were poorly described
  • Science Hands were the most consistent
    • Little to no experience, lots of supervision
slide13
Data
  • All agencies QA data entry
    • nearly all do 100% data audits on 100% of samples
    • Allowable error rates range from 0 to 10%
categories to standardize
Categories To Standardize
  • Sampling Location Accuracy
  • Sampling Representativeness
  • Sampling Precision
  • Trawling corrective action
  • Gear specifications
  • On deck processing
  • Taxonomy
  • Personnel and Training
  • Data reporting
standardization timeline
Standardization TimeLine
  • Discussions at:
    • SCAITE meetings
    • Via email
    • Coordinate during Bight Field Methods meetings