Analysis of Migratory Catfish Production from Artisanal Fishing in the Middle Madeira Sub-Basin Using New Monitoring Methods, Southwestern Amazon

Table 6

Canonical correspondence analysis (CCA) score for the influence of descriptor variables on the volume of fish caught (kg) of Pimelodidae species for the middle Madeira River region between 2018 and 2019.

Descriptors	Axis 1	Axis 2	Eigen value
Months	0.03	0.34	0.38
Hydrological level (cm)	0.29	−0.03	0.26
Environment	−0.04	−0.01	0.15
Number of days fished	0.00	−0.17	0.10
Support boats	−0.23	0.19	0.03
Locations vs unloading (km)	−0.09	−0.15	0.02
Variation explained (%)	40.73	27.14	—