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Cynoscion acoupa in Trinidad and Tobago
Acoupa weakfish

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Cynoscion acoupa   (Lacepède, 1801)
Family:	Sciaenidae (Drums or croakers)			picture (Cyaco_u1.jpg) by Krumme, U.
Order:	Perciformes  (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Acoupa weakfish
Max. size:	110 cm TL (male/unsexed; Ref. 40637); max. published weight: 17.0 kg (Ref. 40637)
Environment:	demersal; oceanodromous ; depth range - 20 m
Climate:	subtropical
Global Importance:	fisheries: commercial; aquarium: commercial
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (K=0.27)
Distribution:	Western Atlantic: Panama to Argentina.
Diagnosis:	Dorsal spines (total): 11-11; Dorsal soft rays (total): 17-22; Anal spines: 2-2; Anal soft rays: 7-9. Body nearly uniform silvery, dark greenish above. Without conspicuous spots on side but with diffuse dark areas along base of dorsal fin and on margin of spinous dorsal fin, ventral side of head, lower margin of pectoral, pelvic, and caudal fins often yellowish orange. Inside of opercle dusky. Mouth large, oblique. Lower jaw slightly projecting. Upper jaw with a pair of large canine-like teeth at tip. Lower jaw with a row of enlarged inner-row teeth, gradually increasing in size posteriorly. Chin without barbels or pores. Snout with 2 marginal pores. Pectoral fins about equal in length to pelvic fins. Gas bladder with a pair of long, straight, horn-like appendages. Sagitta earstone thin and elongate. Soft portion of dorsal fin unscaled except 2 or 3 rows of small scales along its base (Ref 51271).
Biology:	Forms schools (Ref. 35237). Found over mud or sandy mud bottoms near mouths of rivers. Juveniles are restricted to brackish and fresh waters. Feeds on shrimps and fishes. Important food fish (Ref. 3702)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Chao, L.N.. 1978. (Ref. 3702)
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Trinidad and Tobago country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:  Ramjohn, D.D., 1999
Salinity:	freshwater, brackish, marine
Uses:	no uses
Comments:	Known from Trinidad (Ref. 9626).
Country Information:	www.cia.gov/cia/publications/factbook/geos/td.html
National  Fisheries  Authority:	www.cep.unep.org/trini_tbgo/fisheries/index.htm
Occurrences:	Occurrences    Point map
Main Ref:	Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez, 1992
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | E-book | Field guide | Identification keys | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | National databases | PubMed | Recipes | Scirus | Tree of Life | Zoological Record FishWatcher |
	Note: use the Back button of your browser to return to FishBase.
	Checked:  Garilao, Cristina V.	Modified:  Garilao, Cristina V.	Entered:  Agustin, Liza Q.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07