Diagnostic Description
provided by Fishbase
Snout is short and obtuse. Midbelt of its disc and upper surface of its tail are rough with large thorns in irregular rows. Upper surface ash gray to chocolate brown. Lower surface white, grayish white, pale gray or light fawn color, sooty patches on pelvic fins and axils of pectoral fins (Ref. 6902).
- Recorder
- Arlene G. Sampang-Reyes
Life Cycle
provided by Fishbase
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
- Recorder
- Cristina V. Garilao
Trophic Strategy
provided by Fishbase
Typically a mesobenthic species found on the outer shelves and slopes, on soft substrate (Ref. 119696). Found in deeper shelf and slope waters, in 3-5.5°C water temperature (6902). Benthic (Ref. 58426). Feed on all kinds of bottom animals with preference for invertebrates (Ref. 3167) like copepods, amphipods and mysids (Ref. 6902). A nematode, Proleptus mackenzei is a known parasite of the species (Ref. 5951).
Biology
provided by Fishbase
Found in deeper shelf and slope waters, in 3-5.5°C water temperature (6902). Benthic (Ref. 58426). Feed on all kinds of bottom animals with preference for invertebrates (Ref. 3167) like copepods, amphipods and mysids (Ref. 6902). 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 3.8-4.2 cm long and 2.4-2.6 cm wide (Ref. 41303, 41251, 41301).
Importance
provided by Fishbase
fisheries: of no interest
Rajella fyllae
provided by wikipedia EN
Rajella fyllae is a species of skate in the family Rajidae.[3][4]
Name
The scientific name fyllae refers to the ship HDMS Fylla, from where the holotype was collected by the Fylla scientific expeditions of 1884 and 1886 to Greenland.[5]
It is sometimes called the round ray or round skate,[6] but those names are also used for the family Urotrygonidae or the genera Heliotrygon and Irolita.[7][8] The name Fylla's ray is also used, perhaps by writers who thought that "Fylla" was the name of a person.[9][10]
Distribution
The round ray lives in the North Atlantic Ocean and Arctic Ocean. It is a benthic fish, found in depths of 147–2,055 m (482–6,742 ft), typically 300–800 m (980–2,620 ft); in cold deeper continental shelf waters, 3–5.5 °C (37–42 °F).[11][12]
Description
Like all rays, the round ray has a flattened body with broad, wing-like pectoral fins. Its maximum length is 60 cm (2.0 ft). Its dorsal (upper) surface is grey or brown, with the lower surface light gray or fawn, with dark patches on the pelvic fins and axils of pectoral fins.[13]
Behaviour
Rajella fyllae feeds on mysids, copepods, crustaceans and amphipods.[14]
In breeding, there is a distinct pairing of the male and female, with an "embrace." It is oviparous, the eggs being oblong with stiff pointed "horns" in the corners; they are deposited in sandy or muddy flats.[15]
See also
References
-
^ "IUCN Red List of Threatened Species".
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^ "Raja montagui". WoRMS. World Register of Marine Species. Retrieved 27 June 2021.
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^ Hamlett, William C. (October 14, 2011). Reproductive Biology and Phylogeny of Chondrichthyes: Sharks, Batoids, and Chimaeras, Volume 3. CRC Press. ISBN 9781439856000 – via Google Books.
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^ Ebert, David A.; Dando, Marc (December 8, 2020). Field Guide to Sharks, Rays & Chimaeras of Europe and the Mediterranean. Princeton University Press. ISBN 9780691211824 – via Google Books.
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^ Watkins, Michael; Beolens, Bo (January 30, 2015). Sharks: An Eponym Dictionary. Pelagic Publishing Ltd. ISBN 9781784270377 – via Google Books.
-
^ Hamlett, William C. (May 21, 1999). Sharks, Skates, and Rays: The Biology of Elasmobranch Fishes. JHU Press. ISBN 9780801860485 – via Google Books.
-
^ "Rajella fyllae: Kulka, D.W., Anderson, B., Derrick, D., Pacoureau, N. & Dulvy, N.K." 2019. doi:10.2305/IUCN.UK.2020-3.RLTS.T197086A22515038.en. S2CID 242570192.
{{cite journal}}: Cite journal requires |journal= (help) -
^ Ebert, David A.; Sulikowski, James (December 25, 2008). Biology of Skates. Springer Science & Business Media. ISBN 9781402097034 – via Google Books.
-
^ Marine Scotland Science Report 03/10 - Deepwater Trawl Survey Manual
-
^ Neat, Francis; Campbell, Neil (September 20, 2011). "Demersal fish diversity of the isolated Rockall plateau compared with the adjacent west coast shelf of Scotland: FISH DIVERSITY OF THE ROCKALL PLATEAU". Biological Journal of the Linnean Society. 104 (1): 138–147. doi:10.1111/j.1095-8312.2011.01699.x.
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^ "WoRMS - World Register of Marine Species - Rajella fyllae (Lütken, 1887)". www.marinespecies.org.
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^ Carrier, Jeffrey C.; Musick, John A.; Heithaus, Michael R. (March 9, 2010). Sharks and Their Relatives II: Biodiversity, Adaptive Physiology, and Conservation. CRC Press. ISBN 9781420080483 – via Google Books.
-
^ "Rajella fyllae, Round ray". www.fishbase.se.
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^ Last, Peter; Naylor, Gavin; Séret, Bernard; White, William; Stehmann, Matthias; Carvalho, Marcelo de (December 1, 2016). Rays of the World. Csiro Publishing. ISBN 9780643109155 – via Google Books.
-
^ "WoRMS - World Register of Marine Species - Rajella fyllae (Lütken, 1887)". www.marinespecies.org.
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Rajella fyllae: Brief Summary
provided by wikipedia EN
Rajella fyllae is a species of skate in the family Rajidae.
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- Wikipedia authors and editors
Diet
provided by World Register of Marine Species
Feed on all kinds of bottom animals with preference for invertebrates
North-West Atlantic Ocean species (NWARMS)
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- WoRMS Editorial Board
Distribution
provided by World Register of Marine Species
found in deeper shelf and slope waters, in 3-5.5°C water temperature
North-West Atlantic Ocean species (NWARMS)
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Habitat
provided by World Register of Marine Species
Found in deeper shelf and slope waters, in 3-5.5°C water temperature.
North-West Atlantic Ocean species (NWARMS)
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Habitat
provided by World Register of Marine Species
benthic
North-West Atlantic Ocean species (NWARMS)
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