Table 1.

Number of samples collected from finless porpoise (FP) during capture and release health surveys conducted in Poyang Lake (PL) and Tian-E-Zhou Oxbow (TZO).

Site	Samples analyses	Survey periods	Juvenile1	NP female	Pregnant female	AF	AM	Total adults	Total FP/site
PL	Hematology	2009–2017	42	13	19	32	35	67	109
TZO	Hematology	2002–2015	28	11	12	23	58	81	79
		Total FP/group	70	24	31	55	93	148	188
PL	Serum Chemistry	2009–2017	41	0	24	24	32	56	97
TZO	Serum Chemistry	2002–2015	15	4	9	13	40	53	68
		Total FP/group	56	4	33	37	72	109	165

¹JFs < 130 cm in total length. JMs < 138 cm in total length. Within hematology data, Fisher’s exact test indicated that when data were combined across both locations, no differences were detected in sample distribution between age group (adults and juvenile) and sex (P = 1.0) or between age group and location (P = 0.06). However, significant differences were detected in numbers of AM and female samples between locations (P = 0.017). This difference did not exist (P = 0.17) when samples collected from only adult NP females and AMs compared between locations were examined. For serum chemistry data, overall no differences in frequency of sampling of adults and juvenile across each sex were detected (P = 0.727). However, when pregnant females were excluded, the distribution was different (P < 0.001). Finally, no differences were detected in the frequency of AMs and all AFs (P = 0.07) or AMs and NP (P = 0.134) females across locations.