Ranina ranina, also known as the Huỳnh Đế crab,[1](red) frog crab or spanner crab,[2] is a species of crab[3] found throughout tropical and subtropicalhabitats.[4] It is often fished for its meat, and is the only known species in its genus.[5]
It may grow up to 15.0 centimetres (5.9 in) long, and may weigh up to 900 grams (2.0 lb).[6] The carapace is wider at the front, reddish brown in color, with ten white spots.[4]Ranina ranina is mainly nocturnal, and remains buried in the sand during the day.[2]Ranina ranina is easily distinguished from other crab species in its habitat due to its red carapace and elongated midsection.[6]
Distribution and ecologyedit
Spanner crabs inhabit coastal waters along the east coast of Australia, from Yeppoon in Queensland to the North coast of New South Wales. There is also a population to the north of Perth in Western Australia.[6]Ranina ranina is abundant in the coastal waters of south-western Mindanao, Philippines. These crabs are also found in the eastern coast of Africa, across the Indian Ocean to Indonesia, Japan and Hawaii and Vietnam.[7]
Ranina ranina inhabits depths of 10–100 metres (33–328 ft) on sandy-smooth substrata in which they bury themselves from where they attack small bottom-dwelling fish.[8] When waiting for prey, Ranina ranina will cover itself with sand, but leave its eye and mouthparts sticking out to help detect its food.[2] Offshore areas within this range in a subtropical or tropical environment serves as a habitat for Ranina ranina, but they must have ample sand for Ranina ranina to flourish, as covering themselves in sand is instrumental in their method of catching prey. The Ranina Ranina crab is a popular species of crab that gets fished, in Australia, 96% of the female crab doesn’t get fished. In one location during spawning season, the decrease in females being hunted doesn’t apply. Meaning that the specific area of Tallows Beach is the focus of spawning migration.
Fisheryedit
The species is commercially exploited over much of its range, but the largest fishery is in Australia, where the annual commercial catch an estimated at 3,592 tonnes (7,919,000 lb).[4][9] In Queensland, only adults above 100 mm (3.9 in) carapace length may be landed.[10] In the Philippines in 2008, prices for Ranina ranina were around 200–300 pesos per kilogram.[4]Ranina ranina populations have been surveyed to avoid overfishing and are currently stable.[11]
Although Ranina ranina is a target of commercial fishing operations, little is known about the species' biology, population dynamics and ecology.[10] Attempts have been made to grow Ranina ranina in captivity, but have so far been met with little success.[2]
Culinary useedit
Ranina ranina is a regional specialty in some regions of the Philippines where it is known as curacha. It is generally eaten steamed as halabos, or cooked in coconut milk as ginataan. A notable variant of the latter is the curacha Alavar of Zamboanga City.[12][13]
In Vietnam the species is named as "Huỳnh Đế crab", literally means "emperor crab". The names refer to the fact that R. ranina is one of the favorite high-ranked cuisine of historical Vietnamese monarchs.[14] It is the delicacy harvested in the provinces Bình Định and Quảng Ngãi, and is hailed "monarch of all the crab".[15]
^ abcdPhyu Phyu Than; Taizo Sakata; Kazuhisa Hamada; Keinosuke Imaizumi (1999). "Characteristics of dominant microflora in aquaculture tanks of juvenile red frog crab, Ranina ranina" (PDF). Memoirs of the Faculty of Fisheries: 1–6.
^S. L. Slattery; A. L. Ford & S. M. Nottingham (1992). "Cooking methods for spanner crabs Ranina ranina (L) and their effect on cadmium residues". Food Australia. 44 (5): 206–210.
^ abcdOliver D. Tito & Jonalyn P. Alanano (2008). "Some aspects of fisheries and biology of spanner crab (Ranina ranina, Linnaeus) in Maluso, Basilan Province, Philippines" (PDF). Memoirs of the Faculty of Fisheries: 40–48.
^Peter K. L. Ng; Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1–286.
^Juliana C. Baylon & Oliver D. Tito (2012) “Natural diet and feeding habits of the red frog crab (Ranina ranina) from southwestern Mindanao, Philippines” Philip. Agric. Scientist Vol. 95 No. 4, 391–398.
^Sydney Fish Market, “Species information: Spanner Crab” (2013) www.sydneyfishmarket.com
^Queensland Fisheries (2010) “Stock Status of Queensland's Fisheries Resources 2009-10” Queensland Australia: Queensland Department of Employment, Economic Development and Innovation. 65
^ abJ. M. Kirkwood; I. W. Brown; S. W. Gaddes; S. Hoyle (2005). "Juvenile length-at-age data reveal that spanner crabs (Ranina ranina) grow slowly". Marine Biology. 147 (2): 331–339. doi:10.1007/s00227-005-1574-0. S2CID 85319322.
^J. McGilvray, I. Brown, E. Jebreen & D. Smallwood (2006) Fisheries Long Term Monitoring Program Summary of spanner crab (Ranina ranina) survey results: 2000-2005. Department of Primary Industries and Fisheries, Queensland, QI06095, Brisbane, Australia.
^Clavite, Harold E. "Homecoming: Food and country". Philippine Information Agency. Retrieved 13 April 2019.
^"Halabos na Curacha". Panlasang Pinoy Meaty Recipes. Retrieved 13 April 2019.
^Huỳnh đế - đệ nhất cua biển giá "chát" vẫn được chuộng
Media related to Ranina ranina at Wikimedia Commons
Data related to Ranina ranina at Wikispecies
January 01, 1970
ranina, ranina, also, known, huỳnh, Đế, crab, frog, crab, spanner, crab, species, crab, found, throughout, tropical, subtropical, habitats, often, fished, meat, only, known, species, genus, scientific, classification, kingdom, animalia, phylum, arthropoda, sub. Ranina ranina also known as the Huỳnh Đế crab 1 red frog crab or spanner crab 2 is a species of crab 3 found throughout tropical and subtropical habitats 4 It is often fished for its meat and is the only known species in its genus 5 Ranina ranina Scientific classification Kingdom Animalia Phylum Arthropoda Subphylum Crustacea Class Malacostraca Order Decapoda Infraorder Brachyura Family Raninidae Genus RaninaLamarck 1801 Species R ranina Binomial name Ranina ranina Linnaeus 1758 Synonyms Cancer ranina Linnaeus 1758 Ranina dentata Latreille 1825 Ranina serrata Lamarck 1801 Ranina cristata Desjardins 1835 Albunea scabra Weber 1795 nomen nudum Ranina ranina by Kawahara Keiga 1823 1829 Siebold Collection Contents 1 Description 2 Distribution and ecology 3 Fishery 4 Culinary use 5 References 6 External linksDescription editIt may grow up to 15 0 centimetres 5 9 in long and may weigh up to 900 grams 2 0 lb 6 The carapace is wider at the front reddish brown in color with ten white spots 4 Ranina ranina is mainly nocturnal and remains buried in the sand during the day 2 Ranina ranina is easily distinguished from other crab species in its habitat due to its red carapace and elongated midsection 6 Distribution and ecology editSpanner crabs inhabit coastal waters along the east coast of Australia from Yeppoon in Queensland to the North coast of New South Wales There is also a population to the north of Perth in Western Australia 6 Ranina ranina is abundant in the coastal waters of south western Mindanao Philippines These crabs are also found in the eastern coast of Africa across the Indian Ocean to Indonesia Japan and Hawaii and Vietnam 7 Ranina ranina inhabits depths of 10 100 metres 33 328 ft on sandy smooth substrata in which they bury themselves from where they attack small bottom dwelling fish 8 When waiting for prey Ranina ranina will cover itself with sand but leave its eye and mouthparts sticking out to help detect its food 2 Offshore areas within this range in a subtropical or tropical environment serves as a habitat for Ranina ranina but they must have ample sand for Ranina ranina to flourish as covering themselves in sand is instrumental in their method of catching prey The Ranina Ranina crab is a popular species of crab that gets fished in Australia 96 of the female crab doesn t get fished In one location during spawning season the decrease in females being hunted doesn t apply Meaning that the specific area of Tallows Beach is the focus of spawning migration Fishery editThe species is commercially exploited over much of its range but the largest fishery is in Australia where the annual commercial catch an estimated at 3 592 tonnes 7 919 000 lb 4 9 In Queensland only adults above 100 mm 3 9 in carapace length may be landed 10 In the Philippines in 2008 prices for Ranina ranina were around 200 300 pesos per kilogram 4 Ranina ranina populations have been surveyed to avoid overfishing and are currently stable 11 Although Ranina ranina is a target of commercial fishing operations little is known about the species biology population dynamics and ecology 10 Attempts have been made to grow Ranina ranina in captivity but have so far been met with little success 2 Culinary use editRanina ranina is a regional specialty in some regions of the Philippines where it is known as curacha It is generally eaten steamed as halabos or cooked in coconut milk as ginataan A notable variant of the latter is the curacha Alavar of Zamboanga City 12 13 In Vietnam the species is named as Huỳnh Đế crab literally means emperor crab The names refer to the fact that R ranina is one of the favorite high ranked cuisine of historical Vietnamese monarchs 14 It is the delicacy harvested in the provinces Binh Định and Quảng Ngai and is hailed monarch of all the crab 15 References edit Crustacean diversity in Vietnam s coral reef a b c d Phyu Phyu Than Taizo Sakata Kazuhisa Hamada Keinosuke Imaizumi 1999 Characteristics of dominant microflora in aquaculture tanks of juvenile red frog crab Ranina ranina PDF Memoirs of the Faculty of Fisheries 1 6 S L Slattery A L Ford amp S M Nottingham 1992 Cooking methods for spanner crabs Ranina ranina L and their effect on cadmium residues Food Australia 44 5 206 210 a b c d Oliver D Tito amp Jonalyn P Alanano 2008 Some aspects of fisheries and biology of spanner crab Ranina ranina Linnaeus in Maluso Basilan Province Philippines PDF Memoirs of the Faculty of Fisheries 40 48 Peter K L Ng Daniele Guinot amp Peter J F Davie 2008 Systema Brachyurorum Part I An annotated checklist of extant Brachyuran crabs of the world PDF Raffles Bulletin of Zoology 17 1 286 a b c Spanner crab Ranina ranina Fishing and Aquaculture New South Wales Department of Primary Industries 2005 Retrieved January 4 2009 Juliana C Baylon amp Oliver D Tito 2012 Natural diet and feeding habits of the red frog crab Ranina ranina from southwestern Mindanao Philippines Philip Agric Scientist Vol 95 No 4 391 398 Sydney Fish Market Species information Spanner Crab 2013 www sydneyfishmarket com Queensland Fisheries 2010 Stock Status of Queensland s Fisheries Resources 2009 10 Queensland Australia Queensland Department of Employment Economic Development and Innovation 65 a b J M Kirkwood I W Brown S W Gaddes S Hoyle 2005 Juvenile length at age data reveal that spanner crabs Ranina ranina grow slowly Marine Biology 147 2 331 339 doi 10 1007 s00227 005 1574 0 S2CID 85319322 J McGilvray I Brown E Jebreen amp D Smallwood 2006 Fisheries Long Term Monitoring Program Summary of spanner crab Ranina ranina survey results 2000 2005 Department of Primary Industries and Fisheries Queensland QI06095 Brisbane Australia Clavite Harold E Homecoming Food and country Philippine Information Agency Retrieved 13 April 2019 Halabos na Curacha Panlasang Pinoy Meaty Recipes Retrieved 13 April 2019 Huỳnh đế đệ nhất cua biển gia chat vẫn được chuộng Cua huỳnh đế 10 February 2012 External links edit nbsp Media related to Ranina ranina at Wikimedia Commons nbsp Data related to Ranina ranina at Wikispecies Retrieved from https en wikipedia org w index php title Ranina ranina amp oldid 1174779321, wikipedia, wiki, book, books, library,
