Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Cynoscion: Greek, kyon = dog + Greek, odous = teeth + Greek, skion, skiaina = barbel, red mullet (Ref. 45335).
Eponymy: Presley Norton Yoder (1932–1993) was an independently wealthy US & Ecuadorian archaeologist and founder of the Research Centre of Salango, Ecuador. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; non-migratory; depth range 100 - 200 m (Ref. 43583). Tropical; 0°S - 5°S
Southeast Pacific: Ecuador.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 55763); common length : 30.0 cm TL male/unsexed; (Ref. 55763)
Dorsal spines (total): 11 - 12; Dorsal soft rays (total): 23 - 26; Anal spines: 2; Anal soft rays: 9 - 10; Vertebrae: 25. A moderate sized Cynoscion, the largest specimen is 353 mm TL. It can be distinguished from its congeners by : a long head contained 2.8 to 3 times in SL, a large eye contained 5.1 to 5.8 times in head length (HL), a low gill raker count, a relatively high number of dorsal-fin rays (23-26), a long pectoral fin contained 1.6 in HL, a dark steel grey color on its dorsum and a black pigmented oral cavity.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Béarez, P., 2001. Description of a new weakfish, Cynoscion nortoni, from Ecuador with a note on the distribution of Umbrina bussingi (Perciformes: Sciaenidae). Rev. Biol. Trop. 49 Suppl. 1:59-65. (Ref. 43583)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 13.9 - 16, mean 15 °C (based on 3 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00386 - 0.01791), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
