Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Plotosidae
Etymology: Euristhmus: Greek, eurys = long + Greek, isthmos = narrow passage (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal. Tropical
Indo-West Pacific: northwestern Australia, the Arafura Sea (Ref. 9819) and Papua New Guinea. Known from the freshwater reaches of the Mekong estuary (Ref. 12693).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL male/unsexed; (Ref. 3132)
Occurs inshore over soft bottoms (Ref. 7300). Found along coastlines and in estuaries, including freshwater reaches. Not seen in markets (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R. and R. Swainston, 1988. The marine fishes of north-western Australia: a field guide for anglers and divers. Western Australian Museum, Perth. 201 p. (Ref. 3132)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.6 - 28.8, mean 27.7 (based on 498 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00197 - 0.01063), b=3.07 (2.87 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.9 ±0.62 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .