Otolith microchemistry indicates regional phylopatry in the larval phase of an amphidromous fish (Gobiomorphus hubbsi)

Figures & data

Figure 1. Map of sampling locations along the west coast of South Island, New Zealand.

Table 1. DFA classification success of G. hubbsi for west coast rivers based on larval otolith microchemistry.

River	Fox	Hokitika	Mokihinui	Punakaiki	Totara	Waita
Fox	7	0	3	0	0	0
Hokitika	0	10	0	0	0	0
Mokihinui	1	0	7	0	1	1
Punakaiki	0	0	1	3	3	3
Totara	0	0	1	2	5	2
Waita	0	0	1	3	0	6

Notes: Numbers indicate the number of fish classified to each river (N = 10 fish per system). Element set: Rb, Sr and Ba.

Figure 2. PCA plot of larval G. hubbsi otolith trace element signatures for West Coast drainages. Differences in otolith elemental composition are clearly evident for some drainages.