Strawman (Craterocephalus stramineus) fish species and information / pictures of Strawman - Craterocephalus stramineus

Strawman (Craterocephalus stramineus) fish species information

Scientific Name
Craterocephalus stramineus

Common Name
Strawman

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 (Ref. 26703).

Classification

Classified By
Whitley, 1950
Class
Ray-finned fishes (Actinopterygii)
Order
Silversides (Atheriniformes)
Family
Silversides (Atherinidae)

Distribution

Region
Oceania
Distribution
Oceania: endemic to Australia.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
25 °C
Water Temperature To
30 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; ; pH range: 7.0 - ? ; dH range: 12 - ? benthopelagic
Trophic Level
2.99 s.e. 0.40 Based on food items.
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
6.5 cm
Common Length
4.0 cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (18 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated