Raja straeleni, Spotted skate : fisheries, gamefish

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Raja straeleni Poll, 1951

Spotted skate
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Raja straeleni   AquaMaps   Data sources: GBIF OBIS
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Image of Raja straeleni (Spotted skate)
Raja straeleni
Picture by Zsilavecz, G.

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335);  straeleni: Named after V. Van Straelen, director of IRSNB, Belgium (Ref. 377).  More on author: Poll.

Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी

; समुद्री ड़िमरसल; औशिनोड़िरोमस; गहराई सीमा 80 - 800 m (Ref. 11284), usually 100 - 300 m (Ref. 26999).   Tropical; 15°N - 30°S

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Eastern Atlantic: Rio de Oro, Western Sahara to South Africa.

आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL पुल्लिंग / अलिंग; (Ref. 26999); 67.0 cm TL (female); अधिकतम प्रकाशित वज़न: 1.4 kg (Ref. 377); अधिकतम प्रकाशित वज़न: 1.4 kg

Short description आकृति विज्ञान | मौरफोमैटरिक्स

A black-spotted skate with a blunt, angular snout, a long, stout tail, and a broad angular disc; strong thorns on upper surface of disc and tail at all stages, sometimes on underside in large individuals (Ref. 5578). Brown to grey dorsally, with small to large black spots, whorls and blotches; many with gold and black, traversely oblong eyespot on each pectoral base; white ventrally with no dark pores (Ref. 5578). Juveniles have no dark spots above (Ref. 2708).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Found in shallow enclosed bays and on the slope (Ref. 5578). Feeds on invertebrates, bony fishes and fish offal. Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Caught by shore and ski-boat anglers and by hake trawlers. Pectoral fins sold as 'skate wings' (Ref. 5578). Undergoes regular migration, towards the coast during the warm season and towards deep waters in winter (Ref. 5377).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | संदर्भ | संयोजक : McEachran, John | सहयोगीयो

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

IUCN Red List Status (Ref. 123251)

  Data deficient (DD) ; Date assessed: 05 September 2003

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

मात्स्यिकी: व्यापारिक; आखेट मत्स्य: हां
FAO - Publication: search | FishSource |

अधिक जानकारी

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Spawning aggregation
Fecundity
अंडे
Egg development
Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत
BRUVS
संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Nutrients
Mass conversion
सहयोगीयो
तस्वीरे
Stamps, Coins Misc.
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

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इंटरनेट स्रोत

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Estimates based on models

Preferred temperature (Ref. 115969): 10.2 - 15.7, mean 12.3 °C (based on 76 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00288 (0.00131 - 0.00635), b=3.23 (3.06 - 3.40), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.62 se; based on food items.
लौटाव (Ref. 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec assumed to be <100).
Vulnerability (Ref. 59153):  Moderate vulnerability (45 of 100) .
Price category (Ref. 80766):   Medium.