
TY  - JOUR
A1  - Hogan, AE 
A1  - Nicholson, JC 
T1  - Sperm motility of sooty grunter, <I>Hephaestus fuliginosus</I> (Macleay), and jungle perch, <I>Kuhlia rupestris</I> (Lac&#233;p&#232;de), in different salinities
JF  - Marine and Freshwater Research
JO  - Mar. Freshwater Res.
Y1  - 1987
VL  - 38
IS  - 4
SP  - 523
EP  - 528
KW  - 
UR  - https://doi.org/10.1071/MF9870523 
N2  - The spawning habitat of jungle perch is unknown. It coexists in the short, fast-flowing freshwater streams of north-eastern Queensland with sooty grunter, a known freshwater spawner. The duration and intensity of sperm motility in various dilutions of sea-water were compared to indicate whether jungle perch spawn in fresh water or salt water. Sooty grunter sperm was most active in salinities of 0 g l-1 and 5 g i-1, and not motile in salinities above 15 g l-1. Jungle perch sperm was not motile in fresh water, but most active in 25 g I-1. These results, together with fish distribution studies in estuaries, indicated that jungle perch probably spawn in the sea in salinities above 25 g I-1.. 
ER  -

