The Company of Biologists

Table 4.

Species means (±s.e.m.) for GFR parameters

Species	N	GFR rate (GFRs min^–1)	GFR duration (s)	GFR FM (Hz)	GFR +FM slope (Hz ms^–1)	GFR –FM slope (Hz ms^–1)
Sternarchorhynchus sp.	7	0.39±0.19	5.70±2.03	8.61±1.19	0.081±0.022	–0.0108±0.0056
Sternarchorhynchus cf. roseni	8	0.12±0.03	20.51±8.7	18.88±8.92	0.043±0.012	–0.0278±0.0133
Parapteronotus hasemani (Peru)	10	2.93±0.37	2.00±0.17	6.22±0.24	0.119±0.021	–0.0695±0.0120
Parapteronotus hasemani (Brazil)	4	0.98±0.11	2.97±1.24	7.43±1.71	0.099±0.034	–0.0364±0.0110
Apteronotus albifrons^¹	42	0.63±0.06	1.56±0.2	8.94±0.58	0.103±0.007	–0.0473±0.0045
Apteronotus leptorhynchus^¹	20	0.23±0.03	1.40±0.93	10±1.06	0.260±0.036	–0.292±0.074
`Apteronotus' bonapartii	10	0.24±0.05	4.35±0.86	5.37±0.52	0.042±0.008	–0.0103±0.0037
`Apteronotus' n. sp. B	1	2.04	1.07	5.40	0.048	–0.0122
Sternarchogiton nattereri	9	0.52±0.11	2.87±0.86	4.93±0.59	0.030±0.005	–0.0122±0.0049
Sternarchogiton porcinum	1	0.33	7.02	4.23	0.015	–0.0014
Porotergus gimbeli (Peru)	7	0.16±0.047	6.52±1.84	6.86±1.22	0.078±0.024	–0.0076±0.0024
Porotergus gimbeli (Brazil)	2	0.46±0.21	7.15±0.59	7.86±0.34	0.022±0.001	–0.0022±0.0003
Sternarchella terminalis	5	1.36±0.58	2.14±0.88	5.89±1.38	0.213±0.105	–0.0839±0.0409
Adontosternarchus balaenops	10	0.16±0.07	5.92±1.99	11.89±1.52	0.267±0.167	–0.119±0.081
Adontosternarchus devenanzii^²	21	0.26±0.04	1.22±0.48	11.64±1.77	0.392±0.037	–0.236±0.021

Species	N	GFR rate (GFRs min^–1)	GFR duration (s)	GFR FM (Hz)	GFR +FM slope (Hz ms^–1)	GFR –FM slope (Hz ms^–1)
Sternarchorhynchus sp.	7	0.39±0.19	5.70±2.03	8.61±1.19	0.081±0.022	–0.0108±0.0056
Sternarchorhynchus cf. roseni	8	0.12±0.03	20.51±8.7	18.88±8.92	0.043±0.012	–0.0278±0.0133
Parapteronotus hasemani (Peru)	10	2.93±0.37	2.00±0.17	6.22±0.24	0.119±0.021	–0.0695±0.0120
Parapteronotus hasemani (Brazil)	4	0.98±0.11	2.97±1.24	7.43±1.71	0.099±0.034	–0.0364±0.0110
Apteronotus albifrons^¹	42	0.63±0.06	1.56±0.2	8.94±0.58	0.103±0.007	–0.0473±0.0045
Apteronotus leptorhynchus^¹	20	0.23±0.03	1.40±0.93	10±1.06	0.260±0.036	–0.292±0.074
`Apteronotus' bonapartii	10	0.24±0.05	4.35±0.86	5.37±0.52	0.042±0.008	–0.0103±0.0037
`Apteronotus' n. sp. B	1	2.04	1.07	5.40	0.048	–0.0122
Sternarchogiton nattereri	9	0.52±0.11	2.87±0.86	4.93±0.59	0.030±0.005	–0.0122±0.0049
Sternarchogiton porcinum	1	0.33	7.02	4.23	0.015	–0.0014
Porotergus gimbeli (Peru)	7	0.16±0.047	6.52±1.84	6.86±1.22	0.078±0.024	–0.0076±0.0024
Porotergus gimbeli (Brazil)	2	0.46±0.21	7.15±0.59	7.86±0.34	0.022±0.001	–0.0022±0.0003
Sternarchella terminalis	5	1.36±0.58	2.14±0.88	5.89±1.38	0.213±0.105	–0.0839±0.0409
Adontosternarchus balaenops	10	0.16±0.07	5.92±1.99	11.89±1.52	0.267±0.167	–0.119±0.081
Adontosternarchus devenanzii^²	21	0.26±0.04	1.22±0.48	11.64±1.77	0.392±0.037	–0.236±0.021

Data based on Kolodziejski et al.(Kolodziejski et al.,2005)

data based on Zhou and Smith (Zhou and Smith, 2006)