Rec. GFCM/33/2009/3 (Annex 2)
Implementation of the GFCM Task 1 Statistical Matrix repealing Resolution GFCM/31/2007/1.
GFCM Fishing Effort Measurement Table (PDF)
Table on fishing effort1 measurement / Table sur la mesure de l’effort de pêche
|
Gear
|
Number and dimension
|
Capacity
|
Activity
|
Nominal Effort2
|
|
Dredge (for molluscs)
|
Open mouth
Width of mouth
|
GT
|
Time fishing
|
Dredged bottom surface3
|
|
Trawl (including dredges for flatfishes)
|
Type of trawl (pelagic,
bottom)
GT and/or GRT
Engine power
Mesh size
Size of the net (width of mouth)
Speed
|
GT
|
Time
Fishing
|
GT*days
GT*hours
KW*days
|
|
Purse seine
|
Length and drop of the net
GT
Light power
Number of small boats
|
GT
Length and drop of the
net
|
Search
time
Set
|
GT * Fishing sets2
Length of the net *
fishing sets
|
|
Nets
|
Type of net (e.g.trammel net,
gillnets, etc.)
Net length (used in
regulations)
GT
Net surface
Mesh size
|
Net length and drop
|
Time
fishing
|
Net length * days
Surface*days
|
|
Long lines
|
Number of hooks
GT
Number of longline
Characteristics of hooks
Bait
|
Number of
hooks
Number of
longline unit
|
Time
fishing
|
Number of hooks *
hours
Number of hooks * days
Number of longline
units * days/hours
|
|
Traps
|
GT
|
Number of
traps
|
Time
fishing
|
Number of traps * days
|
|
Purse
seine/FADs
|
Number of FADs
|
Number of FADs
|
Number of
trips
|
Number of FADs *
Number of trip
|
1 It refers to nominal effort.
2 Should be referred to a particular area (indicating the surface) to estimate fishing intensity (effort ? km-2) and to relate the effort to exploited communities.
3 The effort measures that do not include a time activity should be referred to a period of time (i.e. by year).
