The Company of Biologists

Table 4.

Assessment of Cl^– dependency of Na⁺ efflux and net flux

Na compound (nominal [Cl^–]; μmol l^–1)	Condition (N)	Efflux (nmol g^–1 h^–1)	Net flux (nmol g^–1 h^–1)
NaCl (500)	Un-bled (9)	–232±28	19±54
	Bled (10)	–362±38	587±124
Sodium gluconate (0)	Un-bled (10)	–457±32^{^*}	–141±59^{^†}
	Bled (10)	–267±17	665±55
Sodium sulfate (0)	Un-bled (10)	–595±35^{^*}	–354±64^{^†}
	Bled (10)	–326±29	487±89

Na compound (nominal [Cl^–]; μmol l^–1)	Condition (N)	Efflux (nmol g^–1 h^–1)	Net flux (nmol g^–1 h^–1)
NaCl (500)	Un-bled (9)	–232±28	19±54
	Bled (10)	–362±38	587±124
Sodium gluconate (0)	Un-bled (10)	–457±32^{^*}	–141±59^{^†}
	Bled (10)	–267±17	665±55
Sodium sulfate (0)	Un-bled (10)	–595±35^{^*}	–354±64^{^†}
	Bled (10)	–326±29	487±89

Values (means ± s.e.m.) for un-bled compared with bled condition within treatment concentration were significantly different

Significantly greater unidirectional efflux than un-bled snails in 500μmol l^–1 Cl^–

Significantly greater net Na⁺ loss relative to un-bled snails in 500 μmol l^–1 Cl^–