Length-Weight and Length-Length Relationships of 39 Demersal Fish Species of an Estuarine-Coastal Ecosystem from the Northwestern of the Baja California Peninsula, Mexico

Table 2

Parameters of length-weight and length-length relationships for 39 demersal fish species caught in the Bahia Magdalena-Almejas lagoon system.

Family	Scientific name	TL-SL relationship constants			TL-TW relationship constants			G
		a	b ± CI 95%		a	b ± CI 95%
Achiridae	Achirus mazatlanus	−2.461	0.792 ± 0.014	0.976	9.00 E − 06	3.153 ± 0.120	0.922	A^+
Ariidae	Bagre panamensis	2.590	0.772 ± 0.041	0.989	1.20 E − 07	3.775 ± 0.125	0.995	A^+
	Occidentarius platypogon	−7.665	0.802 ± 0.013	0.964	3.00 E − 06	3.181 ± 0.014	0.994	A^−
Balistidae	Balistes polylepis	15.270	0.685 ± 0.017	0.977	2.23 E − 04	2.518 ± 0.052	0.984	A^−
Batrachoididae	Porichthys analis	−0.760	0.898 ± 0.011	0.993	4.00 E − 06	3.156 ± 0.067	0.970	A^+
Cynoglossidae	Symphurus fasciolaris	—	—	—	1.50 E − 05	2.899 ± 0.321	0.935	I
	Symphurus williamsi	—	—	—	2.00 E − 06	3.289 ± 0.282	0.959	I
Engraulidae	Anchoa nasus	−13.086	0.958 ± 0.183	0.930	3.00 E − 07	3.654 ± 0.376	0.938	A^+
Ephippidae	Chaetodipterus zonatus	4.859	0.763 ± 0.031	0.988	1.14 E − 04	2.743 ± 0.170	0.973	A^−
Gerreidae	Eucinostomus dowii	0.177	0.788 ± 0.009	0.922	6.00 E − 06	3.161 ± 0.034	0.927	A^+
	Eucinostomus gracilis	−1.213	0.784 ± 0.010	0.929	9.00 E − 06	3.059 ± 0.051	0.900	A^+
Haemulidae	Haemulopsis axillaris	2.060	0.805 ± 0.006	0.989	1.70 E − 05	2.951 ± 0.034	0.980	I
	Haemulopsis elongatus	−1.076	0.818 ± 0.033	0.957	3.60 E − 05	2.786 ± 0.136	0.909	I
	Hamulopsis nitidus	6.921	0.759 ± 0.017	0.957	8.00 E − 06	3.091 ± 0.061	0.965	A^+
	Orthopristis cantharinus	−21.315	0.994 ± 0.065	0.973	3.30 E − 05	2.812 ± 0.309	0.908	I
	Orthopristis chalceus	−6.296	0.837 ± 0.018	0.982	2.00 E − 06	3.318 ± 0.109	0.953	A^+
	Orthopristis reddingi	2.927	0.794 ± 0.020	0.950	2.60 E − 05	2.862 ± 0.071	0.946	A^−
Mullidae	Pseudupeneus grandisquamis	1.233	0.786 ± 0.029	0.971	1.30 E − 05	3.014 ± 0.137	0.964	I
Ophidiidae	Ophidion galeoides	—	—		1.70 E − 05	2.834 ± 0.121	0.965	I
Paralichthydae	Citharichthys xanthostigma	−2.037	0.844 ± 0.022	0.997	1.70 E − 05	2.911 ± 0.243	0.975	I
	Etropus crossotus	−0.937	0.819 ± 0.007	0.968	1.40 E − 05	2.954 ± 0.023	0.958	I
	Etropus peruvianus	−0.348	0.814 ± 0.009	0.963	1.00 E − 05	3.023 ± 0.026	0.948	I
	Hippoglossina bollmani	−13.057	0.867 ± 0.044	0.983	1.20 E − 05	2.964 ± 0.179	0.977	I
	Paralichthys californicus	−3.739	0.857 ± 0.032	0.976	6.00 E − 06	3.087 ± 0.178	0.976	I
	Syacium ovale	−2.194	0.843 ± 0.023	0.988	8.00 E − 06	3.057 ± 0.103	0.982	I
	Xystreurys liolepis	−3.715	0.867 ± 0.024	0.995	1.00 E − 06	3.515 ± 0.174	0.995	A^+
Pleuronectidae	Pleuronichtys guttulatus	−8.702	0.853 ± 0.056	0.972	2.80 E − 05	2.871 ± 0.398	0.901	I
	Pleuronichthys ritteri	−0.133	0.794 ± 0.014	0.981	8.00 E − 06	3.099 ± 0.084	0.963	I
Sciaenidae	Cynoscion parvipinnis	−4.916	0.863 ± 0.036	0.995	1.64 E − 04	2.483 ± 0.121	0.990	A^−
	Elattarchus archidium	−5.955	0.847 ± 0.070	0.973	2.60 E − 05	2.883 ± 0.379	0.951	I
Serranidae	Diplectrum pacificum	−5.813	0.836 ± 0.008	0.970	2.00 E − 06	3.387 ± 0.038	0.962	A^+
	Paralabrax maculatofasciatus	0.280	0.814 ± 0.007	0.969	1.60 E − 05	2.969 ± 0.022	0.967	I
	Calamus brachysomus	3.498	0.743 ± 0.024	0.987	2.40 E − 05	2.936 ± 0.194	0.987	I
Synodontidae	Synodus lucioceps	3.422	0.855 ± 0.025	0.990	4.00 E − 06	3.098 ± 0.195	0.964	I
	Synodus scituliceps	−2.543	0.876 ± 0.014	0.994	7.00 E − 06	2.978 ± 0.111	0.969	I
Triglidae	Prionotus ruscarius	−2.887	0.832 ± 0.014	0.995	4.80 E − 05	2.768 ± 0.144	0.975	A^−
	Prionotus stephanophrys	−7.659	0.865 ± 0.025	0.981	8.00 E − 06	3.082 ± 0.078	0.979	I
Tetraodontidae	Sphoeroides annulatus	−3.413	0.832 ± 0.013	0.997	1.46 E − 04	2.663 ± 0.147	0.974	A^−
	Sphoeroides lobatus	−3.608	0.846 ± 0.008	0.997	2.40 E − 05	2.984 ± 0.093	0.974	I

a = intercept, b = slope,  = coefficient of determination, and CI = confidence interval. G: growth type, A: allometric, and I isometric. b values greater (in bold) and lower () than those reported in FishBase data.