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Purse Seine Daily Activity Log
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Introduction Daily Activity Log Data uses Fishing effort
Distribution of marine mammals & floating objects
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Sampling priorities Record vessel activity continuously each day on board; Estimate total catch for each gear deployment; Collect random samples for catch composition of each set and document species retained and discarded; Describe all floating objects sighted, especially those involved in a fishing set; Subsample catch for lengths; Record all sightings and interactions with marine mammals and sea turtles; Record fishing gear characteristics.
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Objectives Describe 3 general activities that need to be accounted for on purse seine vessels List 3 cases when a new event must be recorded Demonstrate ability to complete the Daily Activity Log
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Daily Activity Log Continuous through trip Activities:
Searching effort Fishing effort Marine mammal sightings Observations made from bridge Activities – defined by 25 event codes
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2 hrs 4 hrs >1 knot
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Cues - Birds
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Cues - Splashes http://whalesightings.blogspot.com
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Cues - Breezer
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Cues – Floating Object
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Cues – Other Report by other vessel Make note in the margin
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6B Chase
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Date/time
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Lat/long
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Beaufort, weather, observation condition
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Visibility - Excellent
E3 > excellent vis but bright glare forward E2 > excellent vis & glare to 1 side Lauri Streaker 2009 Lauri Streaker - Lauri Streaker 2009 Lauri Streaker 2009
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Visibility - Good G0 – Good vis & no glare Lauri Streaker 2009
~tas2blog/index.html G0 – Good vis & no glare Lauri Streaker - Lauri Streaker 2009 Lauri Streaker 2009
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Visibility - Fair F1 – Fair vis affected by heavy seas
Lauri Streaker 2009 Lauri Streaker -
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Visibility - Poor P0 > poor visibility & zero glare
P0 > poor visibility & zero glare Lauri Streaker 2009 Lauri Streaker 2009
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Water temp, speed, No.X20, aerial assist
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Binocular power 2 numbers (e.g., 25 x 100 ) Magnification
Lens diameter
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Water temp, speed, No.X20, aerial assist
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MM sight, Set, float object #’s
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Activity Questions Handout for activity Groups of 2 15 minutes
Okay to use manual
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Summary Describe 3 activities that need to be accounted for on purse seine vessels When does a new event need to be recorded? What forms are needed if you’re on effort and… You see a marine mammal? Deploy a floating object? Deploy gear?
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