Evaluation of somatic indexes in the endangered and endemic killifish Tlaloc hildebrandi (Cyprinodontiformes: profundulidae)

Figures & data

Figure 1. Localities of fish sampling Tlaloc hildebrandi in Chiapas, Mexico.

Table 1. Parameters of the length–weight relationship of T. hildebrandi in three populations the highlands of Chiapas, México.

Population	n	Min	Max	a	LL(a)	UL(a)	b	LL(b)	UL(b)	r^2
Chenalhó	338	1.2	11.1	0.014	0.014	0.015	3.198	3.176	3.22	0.996
Ocosingo	167	1.7	8.1	0.02	0.017	0.023	2.904	2.797	3.012	0.945
San Cristóbal	127	1.7	10.8	0.013	0.012	0.014	3.193	3.151	3.234	0.995
All	632	1.2	11.1	0.015	0.014	0.015	3.156	3.134	3.178	0.992

Maximal standard length (cm); W. Min-Max = minimal and maximal weight (g); a and b = length–weight relationship parameters; IC (a) and IC (b) = confidence intervals at 95% of a and b; r² = coefficient of determination.

Table 2. Values of the relative weight (Wr) and the index of condition Fulton (K) of T. hildebrandi in three populations of different municipalities of the highlands of Chiapas, México.

Population	n	Wr	SD (Wr)	K	(SD) K
Chenalhó	338	1.00	0.12	1.89	0.30
Ocosingo	167	1.02	0.32	1.82	0.52
San Cristóbal	127	0.96	0.09	1.94	0.22
All	632	1.00	0.19	1.88	0.36

n = number of individuals; SD = standard deviation.