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Collected on a broad shallow bank, on coarse sand and gravel substrate, which included numerous fallen leaves and the open shells of freshwater bivalve molluscs. The riverine environment at the type locality is flowing, clear and fresh (being about 5-6 km upstream from the brackish zone), but is clearly subject to tidal influence, with about a 75 cm rise and fall. Environmental parameters at the time of collection (25 November 2006): conductivity 59.6-60.6 ?S/cm (approximately 30 ppm), pH 6.8, temperature 29°C, dissolved oxygen 6.5 ppm, and turbidity 0.8 NTU. Stomach contents included fragments of insect larvae and numerous sand grains (Ref. 86741).
Other fishes recorded within about 300 m of the type locality on 28 November 2006 included Anguilla reinhardtii, Megalops cyprinoides, Nematalosa erebi, Chanos chanos, Neosilurus ater, Arrhamphus sclerolepis, Melanotaenia splendida splendida, Pseudomugil signifer, Notesthes robusta, Lates calcarifer, Ambassis agassizii, Ambassis miops, Hephaestus fuliginosus, Mesopristes argenteus, Glossamia aprion, Caranx sexfasciatus, Leiognathus equulus, Lutjanus argentimaculatus, Gerres filamentosus, Acanthopagrus australis, Toxotes chatareus, Mugil cephalus, Awaous acritosus, Glossogobius sp. 1 (of Allen et al., 2002: 269), Redigobius bikolanus, Giuris margaritacea and Hypseleotris compressa; estuarine crocodiles, Crocodylus porosus, are also well known from the area (Ref. 86741). |
