Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Serranidae
(Sea basses: groupers and fairy basslets) > Serraninae
Etymology: Serranus: Latin, serran, serranus, saw and a fish of genus Serranus (Ref. 45335); drewesi: Named for Dr. robert C. Drewes of the California Academy of Sciences.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range ? - 19 m (Ref. 118671). Tropical
Eastern Atlantic: São Tomé Is.and Principe.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.5 cm TL male/unsexed; (Ref. 118671)
Morphology | Morphometrics
soft rays: 6. This species is distinguished by the following characters: D X,11; A III, 6; P 14; gill rakers 3 + 11; scales below 1D origin about 5 and below 2D 4+1+8-9; pored lateral line scales 44, circumpeduncular scales 1+9+1+10 (total 21); tubular anterior nostril, the rim is greatly elevated posteriorly and having 7-8 long cirri at tip; cycloid scales except for a hard, sharply spinulated suprascapular scale bone above the upper opening of the gill cover; a weakly emarginate caudal fin, with upper and lower lobes about equal; interradial membrane of soft dorsal and anal fins scaly on basal 1/2 to 1/3; cycloid scales covering the nape, opercle, preopercle, interopercle, mandibualr ramus, pectoral-fin base and chest; presence of a bold, black spot between the last 3 spines and first soft dorsal ray formed above broad black saddle on dorsal half of body (Ref. 118671).
Collected from a submarine cave (Ref. 118671).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Iwamoto, T. and P. Wirtz, 2018. A synopsis of the Eastern and Central Atlantic combers of the genus Serranus (Teleostei: Scorpaeniformes: Serranidae). Proc. Calif. Acad. Sci. 65(1):1-39. (Ref. 118671)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00521 - 0.02309), b=3.05 (2.88 - 3.22), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .