Panulirus longipes
Panulirus longipes | |
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Conservation status | |
![]() Least Concern (IUCN 3.1)[1] | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Family: | Palinuridae |
Genus: | Panulirus |
Species: | P. longipes |
Binomial name | |
Panulirus longipes (A. Milne-Edwards, 1868)[2] |
Panulirus longipes, the longlegged spiny lobster, is a species of spiny lobster that lives on shallow rocky and coral reefs in the tropical Indo-Pacific region. The International Union for Conservation of Nature has assessed its conservation status as being of "least concern".[1]
Description
Panulirus longipes grows to a maximum length of about 30 cm (12 in), but a more normal adult size is 20 to 25 cm (8 to 10 in) with a carapace length of up to 10 cm (4 in). The general colour is dark brown or bluish-brown and there are numerous circular white spots on the abdomen and rather fewer spots on other parts of the body. The legs have pale longitudinal stripes and sometimes a single white spot near the tip.[3]
Distribution and habitat
Panulirus longipes is native to the tropical and subtropical Indo-Pacific region. Its range extends from Madagascar and the east coast of Africa to Malaysia, Japan, Taiwan, the Philippines, Indonesia, Papua New Guinea and northern Australia. It is found on rocky and coral reefs, usually at depths less than about 18 m (59 ft), but exceptionally as deep as 122 m (400 ft).[1]
There are two subspecies; P. l. longipes is known from East Africa to Thailand, Taiwan, the Philippines and Indonesia, while P. l. bispinosus is known from Japan, Micronesia, Papua New Guinea, Vanuatu, Fiji, Tonga, the Cook Islands, New Caledonia and the east coast of Australia.[1]
Biology
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/25/Panulirus_longipes.jpg/170px-Panulirus_longipes.jpg)
Panulirus longipes is nocturnal and hides in rock crevices and under boulders during the day. It feeds on molluscs and other bottom-dwelling invertebrates and defends itself by producing audible sounds whose characteristics have been analysed by Meyer-Rochow & Penrose in 1977.[4] Females carry a large clutch of small eggs tucked under their abdomen for several months. When the eggs hatch, the larvae are planktonic for about ten months before undergoing metamorphosis into puerulus larvae, which settle on the seabed. Juveniles are not gregarious at first and are generally found in shallower water than adults. They are slow-growing and reach a carapace length of about 2 cm (0.8 in) in eighteen months.[5] The animals first breed at around five years of age.[6]
Status
This spiny lobster is caught throughout most of its range for human consumption. The fisheries are mostly small in scale with the methods used including lobster pots, spear-fishing, tangle-nets and traps. There are no population figures available but it is likely that it is being overfished in parts of its range. However, it has a very wide range and is common in much of that range, so the International Union for Conservation of Nature has listed its conservation status as being of "least concern".[1]
References
- ^ a b c d e MacDiarmid, A.; Cockcroft, A.; Butler, M.; Chan, T.Y.; Ng Kee Lin, P. (2011). "Panulirus longipes". IUCN Red List of Threatened Species. 2011: e.T170066A6724132. doi:10.2305/IUCN.UK.2011-1.RLTS.T170066A6724132.en. Retrieved 19 November 2021.
- ^ Chan, Tin-Yam (2015). "Panulirus longipes (A. Milne-Edwards, 1868)". WoRMS. World Register of Marine Species. Retrieved 2015-05-09.
- ^ Holthuis, L.B. "Longlegged spiny lobster (Panulirus longipes)". Marine lobsters of the world. Marine Species Identification Portal. Retrieved 2015-05-09.
- ^ Meyer-Rochow V.B.; Penrose J. (1977). "Sound production by the Western rock lobster Panulirus longipes". Journal of Experimental Marine Biology and Ecology. 23: 191–210. doi:10.1016/0022-0981(76)90141-6.
- ^ Phillips, B.F.; Campbell, N.A.; Rea, W.A. (1976). "Laboratory growth of early juveniles of the western rock lobster Panulirus longipes cygnus". Marine Biology. 39 (1): 31–39. doi:10.1007/BF00395590. S2CID 84248257.
- ^ Chittleborough, R.E. (1974). "Western rock lobsters reared to maturity". Marine and Freshwater Research. 25 (2): 21–225. doi:10.1071/MF9740221.
External links
Media related to Panulirus longipes at Wikimedia Commons
Data related to Panulirus longipes at Wikispecies
- 3D model at the Smithsonian National Museum of Natural History
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