First record of non-indigenous Paracaprella pusilla Mayer, 1890 (Crustacea: Amphipoda) in the Northern Tropical East Pacific

Abstract

The Shetland Islands, northern Scotland, have a highly active and diverse maritime environment, and local marine industries form an important part of the local economy. The potential for damage caused by non-native species is high. As part of an assessment of the current status of non-native species in Shetland, a series of rapid assessment surveys, coupled with a settlement panel monitoring programme, were carried out at 18 sites between May 2012 and October 2014. Eight non-native species were detected in our surveys, three of which (Corella eumyota Traustedt, 1882; Bugulina simplex Hincks, 1886; and Dasysiphonia japonica (Yendo) Kim, 2012) had not been previously recorded. Observations by SCUBA also reported the first UK record of Schizoporella japonica Ortmann, 1890 growing on natural substrate. A literature review revealed three additional non-native species that have been documented in Shetland but were not detected in our survey work. The results from this study highlight the speed at which non-native species can spread over regional scales, and that more active harbours contain greater numbers of non-native species, indicating the potential of hull fouling and ballast water exchange for transporting non-native species.

Diversidad y distribución de los caprélidos (Crustacea: Amphipoda: Caprellidae) en la región del Pacífico oriental tropical: revisión documental

“…Posteriormente, García-Madrigal 2007 Un aspecto importante sobre la distribución de los caprélidos son las especies consideradas como invasoras, como es el caso de la especie no-indígena Paracaprella pusilla, cuya localidad tipo es Río de Janeiro, Brasil, y ha sido registrada junto con C. equilibra en el Canal de Panamá (Ros et al, 2014). Actualmente, P. pusilla se ha encontrado asociada a muelles y estructuras marinas en la región del Pacífico central mexicano (Alarcón-Ortega et al, 2015). Para las costas de Jalisco, México, Galván-Villa & Ayón-Parente (2015) describieron una nueva especie, Caprella suprapiscis Galván-Villa & Ayón-Parente, 2015, asociada al pez piedra Scorpaena mystes Jordan & Starks, 1895, siendo el segundo registro mundial que documenta este tipo de asociación.…”

“…Igualmente, se han encontrado en vertebrados como tortugas marinas (Aoki & Kikuchi, 1995), peces (Galván-Villa & Ayón-Parente, 2015) y cetáceos (familia Cyamidae) (Mc-Cain, 1968;Margolis et al, 2000). Pueden ser encontrados aferrados a estructuras artificiales como boyas, cuerdas y cascos de barcos (Caine, 1987;Thiel et al, 2003;Astudillo et al, 2009;Ros et al, 2014;Alarcón-Ortega et al, 2015).…”

Distribution and species richness of caprellids (Crustacea: Amphipoda) from the Mexican Pacific

“…Localities: MM, Marina Mazatlan; SB, San Blas; NV, Nuevo Vallarta; ME, Melaque. Filled star = type locality; gray circles = previous records from the Mexican Pacific; filled circle = new record mainly associated with fouling communities such as docks, floating pontoon, ballast water (McCain, 1968;Caine, 1978;Díaz et al, 2005;Bhave and Deshmukh, 2009;Ros et al, 2014;Alarcón-Ortega et al, 2015). The feeding strategy of P. pusilla is a carnivorous one, and its diet consists mainly of crustaceans, detritus and hydroids; moreover, its feeding strategies may change between natural and artificial habitats .…”

“…They are also part of fouling communities (Thiel et al, 2003;Ros and Guerra-García, 2012;Alarcón-Ortega et al, 2015), and their distribution varies from intertidal to abyssal zones (Laubitz and Mills, 1972;Woods, 2009). They are fundamental in marine ecosystems as recyclers of organic matter and as an energy source at different trophic levels (Caine, 1989;Woods, 2009 (Mayer, 1903;Shoemaker, 1942;McCain, 1966;McCain, 1967;McCain and Steinberg, 1970;Laubitz, 1970;Alarcón-Ortega et al, 2012;Ros et al, 2014;Sánchez-Moyano et al, 2014;Soler-Hurtado and Guerra-García, 2016) (Hendrickx and Ayón-Parente, 2014;Sánchez-Moyano et al, 2014;Galván-Villa and Ayón-Parente, 2015).…”

“…penantis and Paracaprella sp.) and describe the feeding habitats of caprellids in this area; Sánchez-Moyano et al (2014) report three new records and four new species (A. acanthosoma, C. equilibra, C. mendax, C. pitu, P. carballoi, P. isabelae, L. isabelensis) from 10 stations during two expedition in 2002 and2008;Alarcón-Ortega et al (2015) report the presence of one nonindigenous species from four stations between 2013-2014; Galván-Villa and Ayón-Parente (2015) describe a new species, C. suprapiscis, associated with scorpionfish. At this point, the caprellid studies have only been focused at the small-scale level during short and sporadic surveys, generating a little information about caprellid species and their distribution.…”