556
primary producers are tracked as homogeneous biomass pools on a per-volume
basis (mg N/m
3
) for pelagic and infaunal groups and a per-area basis (mg N/m
2
) for
epibenthic groups.
32.2.4 Fisheries Catch
Historical fisheries catch data were included in the model through time series files
describing the landings (in mg sec
−1
) of each functional group for each polygon
from 1979 to 2011. Catch time series files were constructed from species-specific
fisheries landing data, collated by functional group and distributed across time and
space (Ainsworth et al. 2015). Historical catch data was restricted to marine, wildcaught landings and, therefore, does not include landings associated with aquaculture or freshwater species. Catch for polygons within the US EEZ were obtained
from Ainsworth et al. (2015) who compiled records from the Southeast Data,
Assessment, and Review (SEDAR) stock assessments, from NOAA’s Offices of
Science and Technology Commercial Fisheries Statistics database and NOAA’s
Recreational Billfish Survey. For the SGoM model, monthly catch data for polygons
within Mexico’s EEZ were obtained from Arreguín-Sánchez and Arcos-Huitrón
(2007) who compiled records from the annual reports (Anuario Estadístico de
Pesca) published by the Mexican Federal Government (the database is currently
managed by CONAPESCA – Comisión Nacional de Acuacultura y Pesca; Secretaría
de Agricultura, Ganadería Desarrollo Rural, Pesca y Alimentación). Spatial allocation of species captured on artisanal fisheries was based on the local CONAPESCA
office where landing was reported. Semi-industrial fisheries in Mexico use ships
with larger range and can unload and report their catch in an office away from their
fishing area. Therefore, landings for shelf trawl fleet were spatially allocated based
on shrimp species habitat preferences (Gracia and Vázquez-Bader 1999; Diario
Oficial de la Federación 2012), landings from the Yucatan-shelf longline fleet were
allocated according to reported red grouper fishing areas (Hernandez and Seijo
2003), and landings of the pelagic longline fleet were allocated based on fishing
locations reported to the International Commission for the Conservation of Atlantic
Tunas (Ainsworth et al. 2015). Species in CONAPESCA fisheries landings reports
were assigned to functional groups based on the list of taxa and common names
provided by Arreguín-Sánchez and Arcos-Huitrón (2007). Spatial allocation
accounted for catch restrictions in marine protected areas and the vessel exclusion
zone around the oil platforms in Campeche Sound.
US fishing fleets and fleet distribution of landings were obtained from Ainsworth
et al. (2015) who allocated the catch using the 2011 species-specific landings-bygear data provided by NOAA. Mexican fishing fleets and fleet distribution of landings were determined from the landings and gear information in the Carta Nacional
Pesquera (Diario Oficial de la Federación 2012) and CONAPESCA’s Anuario
Estadístico database.
J. G. Ortega-Ortiz et al.
primary producers are tracked as homogeneous biomass pools on a per-volume
basis (mg N/m
3
) for pelagic and infaunal groups and a per-area basis (mg N/m
2
) for
epibenthic groups.
32.2.4 Fisheries Catch
Historical fisheries catch data were included in the model through time series files
describing the landings (in mg sec
−1
) of each functional group for each polygon
from 1979 to 2011. Catch time series files were constructed from species-specific
fisheries landing data, collated by functional group and distributed across time and
space (Ainsworth et al. 2015). Historical catch data was restricted to marine, wildcaught landings and, therefore, does not include landings associated with aquaculture or freshwater species. Catch for polygons within the US EEZ were obtained
from Ainsworth et al. (2015) who compiled records from the Southeast Data,
Assessment, and Review (SEDAR) stock assessments, from NOAA’s Offices of
Science and Technology Commercial Fisheries Statistics database and NOAA’s
Recreational Billfish Survey. For the SGoM model, monthly catch data for polygons
within Mexico’s EEZ were obtained from Arreguín-Sánchez and Arcos-Huitrón
(2007) who compiled records from the annual reports (Anuario Estadístico de
Pesca) published by the Mexican Federal Government (the database is currently
managed by CONAPESCA – Comisión Nacional de Acuacultura y Pesca; Secretaría
de Agricultura, Ganadería Desarrollo Rural, Pesca y Alimentación). Spatial allocation of species captured on artisanal fisheries was based on the local CONAPESCA
office where landing was reported. Semi-industrial fisheries in Mexico use ships
with larger range and can unload and report their catch in an office away from their
fishing area. Therefore, landings for shelf trawl fleet were spatially allocated based
on shrimp species habitat preferences (Gracia and Vázquez-Bader 1999; Diario
Oficial de la Federación 2012), landings from the Yucatan-shelf longline fleet were
allocated according to reported red grouper fishing areas (Hernandez and Seijo
2003), and landings of the pelagic longline fleet were allocated based on fishing
locations reported to the International Commission for the Conservation of Atlantic
Tunas (Ainsworth et al. 2015). Species in CONAPESCA fisheries landings reports
were assigned to functional groups based on the list of taxa and common names
provided by Arreguín-Sánchez and Arcos-Huitrón (2007). Spatial allocation
accounted for catch restrictions in marine protected areas and the vessel exclusion
zone around the oil platforms in Campeche Sound.
US fishing fleets and fleet distribution of landings were obtained from Ainsworth
et al. (2015) who allocated the catch using the 2011 species-specific landings-bygear data provided by NOAA. Mexican fishing fleets and fleet distribution of landings were determined from the landings and gear information in the Carta Nacional
Pesquera (Diario Oficial de la Federación 2012) and CONAPESCA’s Anuario
Estadístico database.
J. G. Ortega-Ortiz et al.