Ecuador country information

Common names: Zorro de mar
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/ec.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Béarez, P., 1996
National Database:

Classification / Names

Elasmobranchii (sharks and rays) > Lamniformes (Mackerel sharks) > Alopiidae (Thresher sharks)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Renard pélagique, Zorro pelágico, Fox shark, ... more

Main reference

Compagno, L.J.V. 1984. (Ref. 247)
References | Biblio | Coordinator : Compagno, Leonard J.V. | Collaborators

Size / Weight / Age

Max length : 428 cm TL male/unsexed; (Ref. 106604); 383.0 cm TL (female); common length : 276 cm TL male/unsexed; (Ref. ); max. reported age: 29 years (Ref. 48844)

Length at first maturity
L_m ?, range 260 - 292 cm

Environment

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 300 m (Ref. 106604), usually 0 - 150 m (Ref. 55167)

Climate / Range

Tropical, preferred ?; 40°N - 32°S, 34°E - 83°W (Ref. 54277)

Distribution

Circumglobal. Indo-Pacific: Red Sea, Arabian Sea, Maldives (Ref. 30829), Somalia, South Africa, Western Australia, China, Taiwan, Japan, New Caledonia, Hawaiian Islands and Tahiti. Eastern Pacific: Gulf of California and the Galapagos. Reliable records lacking partly due to its confusion with Alopias vulpinus.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. A small thresher with moderately large eyes, a broadly convex forehead, a very narrow caudal tip, and straight, broad-tipped pectoral fins (Ref. 5578). Upper lobe of caudal fin very long and strap-like, almost equal to length of rest of shark; lower lobe short but strong; terminal lobe very small (Ref. 13570). Dark blue on back and sides, underside white; no white patch over pectoral fin bases (Ref. 5578).

Primarily an oceanic species but sometimes close inshore (Ref. 247, 5578, 58302); neritic to oceanic, 0-152 m (Ref. 11230). Epipelagic (Ref. 58302). Mesopelagic in the tropics; may enter atoll lagoons (Ref. 37816). Stuns its prey with its tail, presumably feeding on small fishes and cephalopods (Ref. 6871). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 43278, 50449). Sometimes caught by ski-boat anglers (Ref. 5578). Utilized for human consumption, liver oil for vitamin extraction, hides for leather, and fins for shark-fin soup (Ref. 13570). A very common catch in the tuna and shark longline, and tuna drift net fisheries (Ref.58048). Maximum and common size of males estimated from discussion in Ref. 247. Adult females may reach at least 330 cm TL (Ref. 47613).

IUCN Red List Status (Ref. 115185)

Vulnerable (VU) (A2d+4d)

Threat to humans

Harmless (Ref. 13570)

Human uses

Fisheries: commercial; gamefish: yes

More information

Countries
FAO areas
Ecosystems
Occurrences
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Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.5 ±0.66 se; Based on food items.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (Fec=2; tm=7-9; tmax = 29)

Vulnerability (Ref. 59153)
Very high vulnerability (86 of 100)

Price category (Ref. 80766)
Unknown

Alopias pelagicus Nakamura, 1935