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. and D.L. Bürkel, 1984
National Database:

Classification / Names

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

شِفنين بحري مَمزُوجة, 小睛斑鳐, Raie mêlée, ... more

Main reference

McEachran, J.D. and K.A. Dunn. 1998. (Ref. 27314)
संदर्भ | Biblio | संयोजक : McEachran, John | सहयोगीयो

आकार / वज़न / Age

Max length : 80.0 cm TL पुल्लिंग / अलिंग; (Ref. 41333); 86.0 cm TL (female); अधिकतम प्रकाशित वज़न: 4.5 kg (Ref. 4699)

Length at first maturity
L_m 74.0, range 73 - ? cm

पर्यावरण

; समुद्री ड़िमरसल; गहराई सीमा ? - 100 m (Ref. 4426)

जलवायु / सीमा

Temperate, preferred 13°C (Ref. 107945); 55°N - 24°N, 16°W - 1°W

वितरण

Eastern Atlantic: southwestern England and Ireland to Rio de Oro in Western Sahara; absent from the North Sea and the Mediterranean.
देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Short description

पृष्ठीय रीढ़ (सम्पूर्ण): 0; गुदा कांटा 0; ऐनल सौफट रेज़: 0. Eyes conspicuously small; dorsal fins close-set, no thorns between; upper surface predominantly spinulose, underside almost smooth in young, but head and centre of disc prickly in larger specimens; orbital thorns separate, a regular row of about 50 thorns from nape to first dorsal fin; upper surface greyish, olive to light brown with light blotches and long bands, underside white (Ref. 3167).

Found on sandy bottoms, from inshore waters to about 100 m in tidal areas (Ref. 3167). Feed on fishes (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 6.6-10.0 cm long and 4.1-6.3 cm wide (Ref. 41250). About 54-61 eggs are laid by an individual in a year (Ref. 41250).

IUCN Red List Status (Ref. 115185)

Near Threatened (NT)

Threat to humans

Harmless

Human uses

मात्स्यिकी: लघु वाणिज्य; आखेट मत्स्य: हां

अधिक जानकारी

देश
ऐफ ऐ ओ क्षेत्र
Ecosystems
संयोग
भूमिका
Stocks
पारिस्थितिकी
आहार
खाद्य पदार्थ
आहार खपत
खोराक

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Fecundity
अंडे
Egg development

Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत

संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Mass conversion

सहयोगीयो
तस्वीरे
Stamps, Coins
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

Special reports

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

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Summary page | Point data | आम नाम | Photos

इंटरनेट स्रोत

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)
3.9 ±0.2 se; Based on diet studies.

लौटाव (Ref. 69278)
निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec= 54-61)

Vulnerability (Ref. 59153)
Moderate to high vulnerability (54 of 100)

Price category (Ref. 80766)
Medium

Raja microocellata Montagu, 1818