Slender silver-biddy (Gerres oblongus)

Scientific name: Gerres oblongus Cuvier, 1830

Slender silver-biddy (Gerres oblongus)

The Slender silver-biddy (Gerres oblongus) is a marine fish of the family Gerreidae. Native range: Indo-Pacific, Red Sea and East Africa to Samoa and Tonga, north to the Ryukyu Islands, south to New Caledonia.

Biology

Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 7. Scales between 5th dorsal fin spine base and lateral line, 4-4.5. Upper jaw extending almost to the level of anterior margin of dermal eye opening. Second dorsal fin spine longest, 19-26% fo SL (mean 23%). Caudal fin dusky (rarely with dark distal margin); lower edge of lower caudal fin hyaline. Dusky stripes absent or very indistinct along scale rows above lateral line (sometimes 4-9 slightly oblique dusky bands in specimens less than about 10 cm SL); 4-9 slightly oblique dusky bands or columns of ovoid dark spots (rarely brownish) immediately below lateral line, but more obvious in preserved or stressed live specimens.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Gerres oblongus
Family
Gerreidae (Mojarras)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
30.0
Common length
15.0
Environment
Marine; reef-associated
Climate
Tropical
Distribution
Indo-Pacific: Red Sea and East Africa to Samoa and Tonga, north to the Ryukyu Islands, south to New Caledonia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial
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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