Small-eyed whipfin mojarra (Gerres microphthalmus)

Scientific name: Gerres microphthalmus Iwatsuki, Kimura & Yoshino, 2002

Small-eyed whipfin mojarra (Gerres microphthalmus)

The Small-eyed whipfin mojarra (Gerres microphthalmus) is a brackish-water fish of the family Gerreidae. In the aquarium it needs water at 16°C (61°F). Native range: Northwest Pacific, southern Japan.

Small-eyed whipfin mojarra care at a glance

Temperature
16°C (61°F)

Biology

Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 7. Second dorsal fin elongated, reaching just short of last dorsal fin ray when depressed (in all stages, up to 50% SL, mean 42% SL, tip very easily broken). Orbit diameter relatively small (8-11% SL), ratio as % of snout length, 93-143. Head length relatively short, 30-33% of SL. Maxillary reaching to below or (rarely) just short of anterior margin of iris. Exposed maxillary process always tapering to a point anteriorly for about half its length. Supraneural bones 3.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Gerres microphthalmus
Family
Gerreidae (Mojarras)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
12.0
Depth range
20 m (66 ft)
Environment
Marine; brackish; pelagic-neritic; depth range 20 - 20 m
Climate
Temperate
Distribution
Northwest Pacific: southern Japan.
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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