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Species Report Metapenaeus Monoceros (Speckled Shrimp) AFFILIATION CRUSTACEANS

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Species Report Metapenaeus Monoceros (Speckled Shrimp) AFFILIATION CRUSTACEANS Mediterranean invasive species factsheet www.iucn-medmis.org Species report Metapenaeus monoceros (Speckled shrimp) AFFILIATION CRUSTACEANS SCIENTIFIC NAME AND COMMON NAME REPORTS Metapenaeus monoceros 2 Key Identifying Features The body is covered with short hairs and is pale grey speckled with dark brown spots. The antennae are orange-red. The maximum length of adult males is 15 cm and of females 20 cm. The rostrum has 9–12 teeth on the upper margin. Males are easily distinguished from other shrimps in bearing a prominent curved spine on their fifth walking leg. The first and third walking legs bear a basal spine. Identification and Habitat The speckled shrimp is found to a depth of 170 m, commonly 10–30 m, on sandy or sandy-mud bottoms. 2013-2021 © IUCN Centre for Mediterranean Cooperation. More info: www.iucn-medmis.org Pag. 1/5 Mediterranean invasive species factsheet www.iucn-medmis.org Reproduction Spawning occurs twice a year, with the first peak in May–June and the second in October–November in Tunisia, and in May and July–October in Egypt. In Tunisia, the size for males to reach sexual maturity is 7.6 cm and for females 12.2 cm, although the smallest mature specimen found in Egyptian waters was 9.5 cm. The larvae can be transported over long distances, a possible means of new introductions. Similar Species The Mediterranean shrimp Melicertus kerathurus lacks the curved spine on the fifth walking leg in males and its carapace is hairless. The kuruma shrimp, /Marsupenaeus japonicus, differs from the speckled shrimp in its prominent colour pattern, with transverse dark bands on the first four segments of the abdomen. Other species that look similar 2013-2021 © IUCN Centre for Mediterranean Cooperation. More info: www.iucn-medmis.org Pag. 2/5 Mediterranean invasive species factsheet www.iucn-medmis.org History and Route of 231-240. Introduction Serpil Yilmaz, Z. Arzu B. Ozvarol and Y. Ozvarol, Native to the Indo-West Pacific, the speckled 2009. Fisheries and Shrimp Economy, Some shrimp was first recorded in the Mediterranean Biological Properties of the Shrimp Metapenaeus (as Penaeopsis monoceros) in Egypt in 1924, and monoceros (Fabricus, 1798) in the Gulf of has subsequently been found in Israel, southern Antalya (Turkey). Journal of Animal and Turkey, Cyprus, Lebanon, Syria, Tunisia and Veterinary Advances, 8: 2530-2536. Italy. Ecological Impacts It may pose a threat to the native penaeid shrimp Melicertus kerathurus as it outcompetes native species for food and territory. Economic Impacts It is commercially important in Egypt, Israel, Lebanon, Turkey and Tunisia, where is caught by trawlers in offshore and beach seines. Management Options No management options have yet been described. Further Reading Streftaris, N. et al., 2005. Globalisation in marine ecosystems: the story of non-indigenous marine species across European seas. Oceanogr. Mar. Biol. Ann. Rev. 43, 419-453. Bariche, M., 2012. Field identification guide to the living marine resources of the Eastern and Southern Mediterranean. FAO Species Identification Guide for Fishery Purposes. Rome, FAO. 610 pp. Ben Hadj Hamida-Ben Abdallah, O. et al., 2009. Reproductive biology of the speckled shrimp Metapenaeus monoceros (Fabricius, 1798) (Decapoda: Penaeidae) in the gulf of Gabes (Southern Tunisia, Eastern Mediterranean). Cahiers de Biologie Marine Vol. 50 No. 3 pp. 2013-2021 © IUCN Centre for Mediterranean Cooperation. More info: www.iucn-medmis.org Pag. 3/5 Mediterranean invasive species factsheet www.iucn-medmis.org Legend Algae Angiosperm Cnidarians Centre for Mediterranean Molluscs Crustaceans Ascidians Cooperation Combjellies / Fishes Ctenophores More Information: Guide and reports platform for Marine Protected Areas (MPAs) in the Mediterranean. www.iucn-medmis.org 2013-2021 © IUCN Centre for Mediterranean Cooperation. More info: www.iucn-medmis.org Pag. 4/5 Mediterranean invasive species factsheet www.iucn-medmis.org MPAs, Country Date Density Measure Kas-Kekova, Turkey Before 2013 -- -- -- 15/08/2015 -- -- How to cite this tab: Metapenaeus monoceros - Invasive Alien Species Fact Sheet for Mediterranean Network of MPAs. From Online Database MedMIS (IUCN Center for Mediterranean Cooperation, Download date 27/09/2021. More information about this species from: Otero, M., Cebrian, E., Francour, P., Galil, B., Savini, D. 2013. Monitoring Marine Invasive Species in Mediterranean Marine Protected Areas (MPAs): A strategy and practical guide for managers. Malaga, Spain: IUCN. 136 pages www.iucn.org/dbtw-wpd/edocs/2013-008-Es.pdf . Funded by: This collaborative effort is supported by:.
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