Dolphinfish Bycatch in Spanish Mediterranean Large Pelagic Longline Fisheries, 2000–2010

Table 3

Factors and explanatory variables used in the partial logistic regression models. Abbreviations: CPUE, Capture per unit of effort; SSTSS, Sea surface temperature at starting set; SSTFS, Sea surface temperature in the final of the set.

Factors	Variables	Variables types	Abbreviation
Dependent variable	the probability of a fishing operation presents a CPUE value higher than the average CPUE for this boat stratum	Binary	COcpue
Technical characteristics of; the fishery	Distance between both extremes of the longline	Quantitative	DL
	Diurnal or nocturnal setting	Binary	DN
Geographical location	Latitude where the setting started	Quantitative	LATSS
	Longitude where the setting started	Quantitative	LONGSS
	Latitude where the setting finished	Quantitative	LATFS
	Longitude where the setting finished	Quantitative	LONGFS
	Sets over continental shelf	Binary	SCS
Environment	Sea Surface Temperature where the setting started	Quantitative	SSTSS
	Sea Surface Temperature where the setting finished	Binary	SSTFS
	Mean of Sea Surface Temperature between SSTSS and SSTFS	Binary	MR
	Absolute variation between SSTSS and SSTFS	Binary	AP
	Moon effect	Binary	MO