Strawman (Craterocephalus stramineus)

Scientific name: Craterocephalus stramineus Whitley, 1950

The Strawman (Craterocephalus stramineus) is a freshwater fish of the family Atherinidae. In the aquarium it needs water at 25–30°C (77–86°F). Native range: Oceania, endemic to Australia.

Strawman care at a glance

Temperature
25–30°C (77–86°F)

Biology

Distinguished from all other species of that genus by a combination of the following: greatest body depth 3.1-4.1 (3.8); least body depth 8.0-9.9 (9.2); origin of pectoral to anus 2.8-3.1 (3.0), all in SL. Eye 2.6-3.5 (2.9) in head. Dorsal process of premaxilla 1.4-2.2 (1.8) in eye. Lips in premaxilla 2.6-3.7 (3.1). Predorsal scales 10-12 (10.9). Origin of first dorsal from one scale behind to 2.5 scales in front of tip of pectoral fin (Table 1). Unique in dentition and length of spines in first dorsal fin. Differs osteologically from other members of the genus by a combination of the following: shape of premaxilla and maxilla; lateral ramus of premaxilla with greatly reduced secondary process; shape of nasal bone; and with basibranchial toothplate present. Differs genetically from other species only in allele frequencies at the following loci: FUM, MDH and MPI.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Craterocephalus stramineus
Family
Atherinidae (Silversides)
Order
Atheriniformes (Silversides)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
6.5
Common length
4.0
Environment
Freshwater;; pH range: 7.0 - ?; dH range: 12 - ? benthopelagic
Climate
Tropical
Distribution
Oceania: endemic to Australia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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