Table 3.

Gulf of Mexico lionfish fisheries catches, effort, and catch per unit effort (CPUE). Differences among years for commercial spearfishing landings CPUE (kg lionfish per commercial trip) and tournament CPUE (number lionfish harvested per reef) were tested with lognormal generalized linear models. Model outputs show the log-linked parameter estimates for mean CPUE by year, 95% confidence intervals (CI) around mean CPUE, t-values (t), and p-values (P). Hypothesis tests (t- and p-values) evaluated changes in mean annual CPUE from the intercept year in each model, i.e., 2015 commercial spearfishing landings CPUE and 2017 tournament CPUE.

CPUE model	Year	Effort: # trips	Total catch (kg lionfish)	Mean CPUE (kg/trip)	95% CI	t	P
Commercial spearfishing landings	2015 (Intercept)	112	2432	21.71	15.77–29.89	18.87	<0.001
	2016	388	13310	34.30	24.53–47.98	2.66	0.008
	2017	605	19204	31.70	22.80–44.29	2.23	0.026
	2018	399	9570	23.88	16.72–34.08	0.55	0.582
		Effort: # reefs	Total catch (# lionfish)	Mean CPUE (#/reef)
Tournament	2017 (Intercept)	109	3828	24.87	19.65–31.47	26.73	<0.001
	2018	400	8738	13.93	12.19–15.92	−8.71	<0.001
	2019	649	9223	9.45	07.96–10.94	−11.62	<0.001