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Macrodon mordax (Gilbert and Starks, 1904)
DOGTEETH WEAKFISH
Toothed weakfish

Life   Vertebrata   Fish   Sciaenidae   Macrodon

Macrodon mordax
© Copyright Ross Robertson, 2006 · 12
Macrodon mordax

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Overview
Main identification features Elongate, compressed; dorsal rays IX-X+I, 27-30; anal rays I or II, 9-10, short base, weak spines; pored lateral-line scales 45-55; gill rakers on lower limb of first arch 7-8, total rakers 9-11; mouth large and oblique, lower jaw projecting; eye moderate, 5.6-6.5 in head length; minute pores often present on tip of chin, no barbel; prominent curved, arrow-tipped canine teeth in both upper and lower jaws; margin of preopercle without serrations; pectorals long, reaching beyond tips of depressed pelvic fins; dorsal and anal spines weak; tail S shaped, longer in young; soft dorsal and anal fins with scaly sheath covering almost entire fin.

Color silvery, bluish or greenish greyish on upper back; axil of pectoral fin dark; fins whitish to slightly dusky.

Size: grows to 50 cm.

Inhabits coastal waters,including bays and estuaries.

Depth: 5-30 m.

Costa Rica to Ecuador.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 30 m.
Depth Range Min: 5 m.
Diet: bony fishes; octopus/squid/cuttlefish; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=10; Southern limit=1; Western limit=-85; Eastern limit=-78; Latitudinal range=9; Longitudinal range=7.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Bentho-Pelagic.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Estuary; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Water column.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 50 cm.
Regional Endemism: Continent; Continent only; TEP endemic; Continental TEP endemic; Panamic province endemic; All species.
Residency: Resident.
Salinity: Brackish; Marine.
Water Column Position: Mid Water; Near Bottom; Bottom; Bottom + water column;


Names
Scientific source:

Links to other sites

References
  • Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen III. Vertebrados - Parte 2., FAO3:1201-1813.
  • Gilbert , C.H. and Starks, E.C., 1904., The fishes of Panama Bay., Mem. Calif. Acad.Sci., 4:1-304.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.
  • Lopez , M. I. and Bussing, W. A., 1982., Lista provisional de los peces marinos de la Costa Rica., Revista de Biologia Tropical, 30(1):5-26.
  • Meek , S.E. and Hildebrand, S.F., 1925., The marine fishes of Panama. Part II., Field Mus. Nat. Hist., Zool. Ser. Publ., XV:331-707.
  • Rubio, E.A., 1988., Estudio taxonomico de la ictiofauna acompañante del camaron en areas costeras del Pacifico de Colombia., Memorias del VI Seminario Nacional de las Ciencias del Mar. Comisión Colombiana de Oceanografía. Bogota, Colombia., :169-183.
  • Rubio, E.A., 1990., Sistematica y Abundancia de los Peces de la Familia Sciaenidae (Pisces: Perciformes) en areas Aledañas a la Bahia de Buenaventura., Memorias del VII Seminario Nacional de las Ciencias y Tecnologías del Mar. Comisión Colombiana de Oceanografía. Bogota, Colombia., :413-421.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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Macrodon mordax   (Gilbert & Starks, 1904)

Dogteeth weakfish Upload your photos  and  videos
Pictures | Google image Image of Macrodon mordax (Dogteeth weakfish) Macrodon mordax
Picture by Robertson, R.

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Sciaenidae (Drums or croakers)
Etymology: Macrodon: Greek, makros = great + Greek, odon ) teeth (Ref. 45335 ) .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; benthopelagic.   Tropical; 9°N - 2°N

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

Eastern Pacific: Panama to Ecuador.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 9118 )

Biology     Glossary (e.g. epibenthic)

Inhabits coastal waters, bays, and estuaries (Ref. 9118 ). Feeds on crustaceans, fishes and cephalopods (Ref. 9118 ). Considered a good food fish (Ref. 9118 ).

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

Main reference Upload your references | References | Coordinator | Collaborators

Chao, L.N. , 1995. Sciaenidae. Corvinas, barbiches, bombaches, corvinatas, corvinetas, corvinillas, lambes, pescadillas, roncachos, verrugatos. p. 1427-1518. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para identificacion de especies para los fines de la pesca. Pacifico Centro-oriental. 3 volumes. 1813 p. (Ref. 9118 )

IUCN Red List Status (Ref. 115185 )

  Data deficient (DD)  

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: commercial FAO(Publication : search ) | FishSource |

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Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00537 (0.00254 - 0.01136), b=3.09 (2.90 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  4.2   ±0.58 se; Based on food items. Resilience (Ref. 69278 ):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.). Vulnerability (Ref. 59153 ):  Low to moderate vulnerability (34 of 100) . Price category (Ref. 80766 ):   Medium .

Entered by Garilao, Cristina V. Modified by Garilao, Cristina V. Fish Forum
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