Onespot snapperLKJ

 
Lutjanus monostigma
23.3 cm TL

Characteristic features:

  • Scale rows above lateral line obliquely positioned
  • Vomerine tooth patch lacking posterior extension
  • Preopercular notch indistinct

Colour:

Silvery yellowish to pinkish, usually with a black spot on lateral line below dorsal-fin soft rays; fins yellow.

Size:

Up to 55 cm TL.

Distribution:

Indo-West Pacific in tropical waters.

Habitat:

Coral reefs near caves, from 5 to at least 50 m depth.

Biology:

Feeds primarily on fishes, but also on benthic crustaceans. Onespot snapper are usually solitary, but are occasionally found in small groups. In waters of Papua New Guinea 50% of females were estimated to reach maturity at 32.0 cm TL.1 Age of maturity is estimated at 3 years.2 Onespot snapper are a medium sized snapper and have an estimated maximum age of 13 years.3

Fisheries:

Caught with handlines, traps and gill nets.

Similar species:

 
Lutjanus russellii
Russell’s snapper
Lutjanus russellii differs in having a vomerine tooth patch with medial posterior extension (vs. without medial posterior extension); pelvic and anal fins yellow, caudal fin dusky (vs. all fins yellow) and dorsal rays 10,13–14, rarely 14 (vs. 10,14).

External links:

FishBase
The IUCN Red List of Threatened SpeciesTM

References:

  1. 1.
    Longenecker K, Langston R, Bolick H, Kondio U, Mulrooney M. Six-year baseline information: size structure and reproduction of exploited reef fishes before establishing a management plan at Kamiali Wildlife Management Area, Papua New Guinea [Internet]. Bishop Museum Technical Report; 2014. Available from: https://doi.org/10.13140/RG.2.1.1139.6089
  2. 2.
    Martinez-Andrade F. A comparison of life histories and ecological aspects among snappers (Pisces: Lutjanidae) [Internet]. 2003. Available from: https://digitalcommons.lsu.edu/cgi/viewcontent.cgi?article=3270&context=gradschool_dissertations
  3. 3.
    Munro JJ, Williams DDm. Assessment and management of coral reef fisheries: biological, environmental and socio-economic aspects. In: Proceedings of the 5th International Coral Reef Congress, Tahiti . 1985. p. 544–80.