Small school of elongate larvae, TL ~20mm. Rottnest Island, Western Australia, March 2017. Possibly Clupeiforme (Engranulis australis, Spratelloides robustus or Hyperlophus vittatus)? Any help with identification or suggestions greatly appreciated.
Hmm this one is interesting, intial thought was maybe Spratelloides gracilis but after a quick dig around that doesnt look right. Australasian fishes project would be woth a crack. Lots of museum staff and other experts on there. https://www.inaturalist.org/projects/australasian-fishes