Channel Islands country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: ttp://en.wikipedia.org/wiki/Channel_Island
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Stehmann, M., 1990
National Database:

Classification / Names

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

شِفنين بحري أسمرة, 波鳐, Raie brunette, ... more

Main reference

McEachran, J.D. and K.A. Dunn. 1998. (Ref. 27314)
References | Biblio | Coordinator : McEachran, John | Collaborators

Size / Weight / Age

Max length : 100.0 cm TL male/unsexed; (Ref. 4426)

Length at first maturity
L_m 80.0 range ? - 85.2 cm

Environment

Marine; demersal; depth range 50 - 200 m (Ref. 6808)

Climate / Range

Subtropical, preferred 21°C (Ref. 107945); 53°N - 15°N, 19°W - 36°E

Distribution

Eastern Atlantic: southern Ireland and England to Senegal, including the western Mediterranean and the Canary Islands. Reported from the eastern Mediterranean (Ref. 3261).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Found on sandy bottoms of shelf waters (Ref. 3167). Feed on all kinds of bottom animals (Ref. 3167). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 7.2-9.0 cm long and 4.2-5.2 cm wide (Ref. 41303 , 41251, 41304).

IUCN Red List Status (Ref. 115185)

Endangered (EN) (A2bd+3d+4bd)

Threat to humans

Harmless

Human uses

Fisheries: commercial

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
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 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.5 ±0.37 se; Based on food items.

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100)

Vulnerability (Ref. 59153)
High vulnerability (59 of 100)

Price category (Ref. 80766)
Medium

Raja undulata Lacepède, 1802