Diagramma melanacrum  Johnson & Randall, 2001

Blackfin slatey
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Diagramma melanacrum
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Haemulidae (Grunts) > Plectorhinchinae
Etymology: Diagramma: Greek, diagramma = mark out by lines (Ref. 45335);  melanacrum: From the Greek melanos meaning black, and akros meaning tip or at the end - in reference to the black outer part of anal and pelvic fins and lower part of caudal fin (Ref. 44143).   More on author: Randall.

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 3 - 40 m (Ref. 90102).   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm SL male/unsexed; (Ref. 48635)

Short description Morphology | Morphometrics

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 22-24; Anal spines: 3; Anal soft rays: 6 - 7. Tubed lateral line scales 55-57; outer row of teeth in jaws slightly enlarged, movable; swim bladder with 3 short anterior projections; third or fourth dorsal spine longest, 1.8-1.9 in head; first dorsal spine 1.7-2.3 in length of second; interspinous membrane of dorsal fin not incised; pelvic fins reaching vent or slightly beyond, 1.2-1.3 in head; body light yellow dorsally, shading to pale silvery grey on sides and ventrally, with numerous small dark brown spots, which are smaller and form oblique rows on body below lateral line; head light purplish grey with numerous small dark brown spots, opercular membrane black; dorsal fin and upper 3/4 of caudal fin with small dark spots; lower 1/4 of caudal fin black; anal and pelvic fins mainly black (Ref. 44143); dorsal and caudal fins mainly yellow, caudal fin with broad black lower edge margin, caudal fin may be slightly emarginate to truncate; body depth 2.4-2.6 in SL (Ref. 90102). Juveniles from 13.3 cm SL with spots about size of pupil on head, body, dorsal and caudal fins becoming progressively smaller and more numerous with age; juveniles and subadults up to 25.4 cm SL with narrow discontinuous wavy lines on operculum and cheeks, extending to about level of anterior margin of eye (with lines breaking up into spots in larger specimens) (Ref. 44143). Large juveniles have spots in longitudinal rows and also solid stripes (Ref. 90102).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Central Pacific: Indonesia, Borneo and the Philippines. Also known from Ashmore Reef in the Timor Sea.

Biology     Glossary (e.g. epibenthic)

Juveniles in estuaries and silty reefs on open substrates with remote outcrops or reef or debris. Adults on deep reefs along walls with large caves. Often in small aggregations in depths of 30 m or more (Ref. 48635).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Johnson, J.W., J.E. Randall and S.F. Chenoweth, 2001. Diagramma melanacrum new species of haemulid fish from Indonesia, Borneo and the Philippines with a generic review. Mem. Queensl. Mus. 46(2):657-676. (Ref. 44143)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00598 - 0.02651), b=3.00 (2.82 - 3.18), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.5   ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100) .
Price category (Ref. 80766):   Medium.