Distribution of the Invasive Caprellid Caprella scaura (Crustacea: Amphipoda) in Cádiz Marina, Southern Spain: Implications for its Dispersal
- 56 Downloads
The invasive caprellid Caprella scaura Templeton, 1836 is rapidly spreading along marinas of Southern Spain, becoming one of the dominant species of the macrofoulers associated to bryozoans and hydroids of communities in harbours. In order to explore the abundance and distribution patterns of the species in the different habitats available in marinas (floating pontoons, buoys and hull boats), a spatial study was conducted in Cádiz Marina (Puerto América) during two sampling periods (July and November). The bryozoan Bugula neritina was present in all the habitats and were selected as a substrate for comparison among habitats. In the floating pontoons, the single species C. scaura represented more than 60% of all the epifaunal individuals (including other crustaceans, polychaetes, molluscs and pycnogonids), both in July and November. In the boats and the buoys, C. scaura was dominant also in November, while gammarideans dominated in July. Abundance of C. scaura was significantly higher in floating pontoons than in hull boats. The attached caprellids to the boats are frequently exposed to strong water currents originated by boat displacements during local trips, so the results of the present study seem to indicate a preference of C. scaura by more stable substrates and non-exposed waters within the marina, such as floating pontoons.
KeywordsCaprella scaura Alien caprellid Marina Harbour Spain
This study constituted the final degree project in Biology of the first author (SM). Financial support of this work was provided by the the Ministerio de Economía y Competitividad (Project CGL2011-22474, internal reference 2011-707) co-financed by the ERDF, European Union, and by the Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía (Project P11-RNM-7041). We also wish to thank the staff of the Cádiz Marina for their courtesy in allowing us to use their facilities. Thanks are also due to two anonymous reviewers for valuable comments to improve the manuscript.
- Bax N, Hayes K, Marshall A, Parry D, Thresher R (2002) Man-made marinas as sheltered islands for alien marine organisms: establishment and eradication of an alien invasive marine species. In: Veitch CR, Clout MN (eds) Turning the tide: the eradication of invasive species. IUCN SSC Invasive Species Specialist Group. IUCN Gland, Switzerland and CambridgeGoogle Scholar
- Conradi M (1995) Distribución espaciotemporal de los peracáridos (Crustacea) asociados a Bugula neritina (L, 1758) en la bahía de Algeciras. Tesis Doctoral, Universidad de Sevilla, Sevilla, Aspectos faunísticos y zoogeográficos, 210 ppGoogle Scholar
- Ros M, Guerra-García JM (2012) On the occurrence of the tropical caprellid Paracaprella pusilla Mayer, 1890 (Crustacea: Amphipoda) in Europe. Mediterr Mar Sci 13:134–139Google Scholar
- Ros M, Guerra-García JM, Navarro-Barranco C, Cabezas MP, Vázquez-Luis M (2014) The spreading of the non-native caprellid (Crustacea: Amphipoda) Caprella scaura Templeton, 1836 into southern Europe and northern Africa: a complicated taxonomic history. Mediterr Mar Sci 15:94–108Google Scholar
- Ruiz GM, Freestone AL, Fofonoff PW, Simkanin C (2009) Habitat distribution and heterogeneity in marine invasion dynamics: the importance of hard substrate and artificial structure. In: Wahl M (ed) Marine hard bottom communities: patterns, dynamics. Diversity and Change. Springer, Heidelberg, pp 321–332CrossRefGoogle Scholar
- Thiel M, Guerra-García JM, Lancellotti DA, Vásquez N (2003) The distribution of littoral caprellids (Crustacea: Amphipoda: Caprellidea) along the Pacific coast of continental Chile. Rev Chil Hist Nat 76:203–218Google Scholar
- Underwood AJ (1997) Experiments in Ecology: their logical design and interpretation using analysis of variance. Cambridge University Press, UK, 524 ppGoogle Scholar
- Underwood AJ, Chapman MG (1998) GMAV5 for windows: an analysis of variance program. University of Sydney, Institute of Marine EcologyGoogle Scholar