IOTC Area Predictive analysis

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Revision as of 12:14, 21 May 2014 by Gianpaolo.coro (Talk | contribs) (Approach)

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Description

Hypothesis and Thesis

Approach

Fishing hours aggregated per month along the entire period January 1997-December 2012
Fishing hours trend in samples.
Catch quantity in tonnes for Yellofin Tuna, in the entire period January 1997-December 2012
CPUE for Yellofin Tuna, in the entire period January 1997-December 2012
Distribution of the vessels longitudes for Yellofin Tuna by Purse Seine technique, in the entire period January 1997-December 2012
Latitude trend in samples.
Distribution of the vessels latitudes for Yellofin Tuna by Purse Seine technique, in the entire period January 1997-December 2012
Distribution of the presence of vessels on 1 degree csquares, in the entire period January 1997-December 2012
Spectrogram for the fishing hours trend.
Spectrogram for the latitude trend.
Spectrogram for the longitude trend.



Forecasted trend for latitude.
Forecasted trend for longitude.
Forecasted trend for fishing hours.

Aggregation on 12 Months

Aggregation on 12 months of the number of Purse Seine fishing hours.
Aggregation on 12 months of the catch quatities.
Aggregation on 12 months of the CPUE for Yellfin Tuna.
Aggregation on 12 months of the barycenters latitudes.
Aggregation on 12 months of the barycenters longitudes.

Analysis on the Most Exploited Csquare

Csquare code Exploitation (fishing hours)
3005 614135.3
1005 709254.3
3004 513798.8
3104 211621.1
3006 258669.6
3105 24718.3
1004 12235.1
3004 513798.8
3007 33038.7
Most exploited areas at 10 degrees resolution
Aggregation on 12 months of the CPUE for the most exploited ares with csquare code 3005.