Checklist of barnacles (Crustacea; Cirripedia: Thoracica) from the Colombian Pacific
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ORIGINAL ARTICLE
Checklist of barnacles (Crustacea; Cirripedia: Thoracica) from the Colombian Pacific Diego F. Lozano-Cortés & Edgardo Londoño-Cruz
Received: 5 March 2013 / Revised: 20 July 2013 / Accepted: 13 August 2013 / Published online: 29 August 2013 # Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2013
Abstract A checklist of thoracican barnacles from the Colombian Pacific is presented. Using published records, samples deposited in collections, and field observations, 16 barnacle taxa were identified and reported. With this information, the number of thoracican barnacles increases to 24 for the Colombian coasts (11 taxa exclusive to the Pacific coast, 8 exclusive to the Atlantic coast and 5 shared between both coasts). Among the barnacles reported in this work, four are pelagic and four are invasive; two of the latter were introduced from the Atlantic to the Pacific and two from the Pacific to the Atlantic. Keywords Barnacles . Thoracica . Cirripedia . Pacific Ocean . Colombia
Introduction The subclass Cirripedia has three superorders: Acrothoracica, Rhizocephala, and Thoracica. The latter is the most diverse, with five orders, of which four are extant (Ibliformes, Lepadiformes, Scalpelliformes and Sessilia) and one extinct (Cyprilepadiformes) (Buckeridge and Newman 2006). D. F. Lozano-Cortés (*) : E. Londoño-Cruz Department of Biology, Coral Reef Ecology Research Group, Universidad del Valle, Calle 13 No. 100 – 00, A.A. 25360 Cali, Colombia e-mail: [email protected] E. Londoño-Cruz e-mail: [email protected] E. Londoño-Cruz Department of Biology, ECOMANGLARES, Estuarine and Mangroves Ecology Research Group, Universidad del Valle, Calle 13 No. 100 – 00, Cali, Colombia
Thoracicans have six pairs of cirri and are the only group of crustaceans having their body covered with calcareous plates for support and protection from biotic and environmental pressures (Celis et al. 2007; Van Syoc 2009). The organisms belonging to this superorder may be freeliving (e.g., Balanus crenatus as ballanuliths; Cadée 2007) or commensals (e.g., Pyrgomatidae on corals; Ross and Newman 1973). Some have highly specific substratum requirements for larval settlement (e.g., chemical cues from co-specifics; Crisp and Meadows 1962), while others are generalists (i.e., equally abundant on different substrata; Neves et al. 2007). Some have wide distribution ranges as they can remain in the plankton as larvae for relatively long periods of time (e.g., Balanus amphirite and Semibalanus balanoides , Pechenik et al. 1993; Jarrett 1997), while others have short larval periods or abbreviated larval stages (e.g., Balanus trigonus, Thiyagarajan et al. 2003). Others may also disperse as symbionts of longdistance natural travelers such as turtles and whales, or attached to artificial transport vectors such as transoceanic ships (Van Syoc 2009; Carlton et al. 2011). The review and classification of thoracican barnacles began with the works of Darwin (1852, 1854), followed by numerous workers, i
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