Table 1. Summary data on collection of billfish and swordfish larvae for six surveys conducted from 2006 to 2008 in the northern Gulf of Mexico.

	Sailfish			Blue marlin			White marlin			Swordfish
Survey date	N	Density	% Freq	N	Density	% Freq	N	Density	% Freq	N	Density	% Freq
June 15–20, 2006	691	1.99	48.4	18	0.06	16.1	22	0.06	16.1	20	0.06	17.7
July 31-Aug 6, 2006	634	1.71	47.7	346	0.43	33.8	1	0.00	1.5	136	0.33	29.2
June 20–24, 2007	213	0.45	23.7	102	0.31	27.1	30	0.09	15.3	59	0.15	20.3
July 20–24, 2007	70	0.42	32.8	182	0.76	41.4	0	0.00	0.0	14	0.07	15.5
June 9–13, 2008	259	0.84	37.3	12	0.04	8.0	78	0.30	14.7	23	0.08	10.7
July 27-Aug 1, 2008	166	0.37	24.1	62	0.22	24.1	2	0.01	2.4	12	0.04	9.6
	2033	0.96	35.7	722	0.30	25.1	133	0.08	8.3	264	0.12	17.2

Count (N), density (larvae 1000 m⁻²), and percent frequency of occurrence estimates are shown for sailfish, blue marlin, white marlin and swordfish.