Scientific collaboration for early detection of invaders results in a significant update on estimated range: lessons from Stenothoe georgiana Bynum & Fox 1977
Gemma Martínez-Laiz, Macarena Ros, JOSÉ MANUEL GUERRA-GARCÍA, Agnese Marchini, Victoria Fernández-González, Maite Vázquez‐Luis, Monica Lionello, Giovanni Scribano, Renato Sconfietti, Jasmine Ferrario, Aylin Ulman, Ana C. Costa, Joana Micael, Alistair G. B. Poore, M. Pilar Cabezas, Carlos Navarro‐Barranco
Abstract
Detection of new non-indigenous species is often delayed when taxonomically challenging taxa are involved, such as small-sized marine organisms. The present study highlights the relevance of scientific cooperation in the early detection of the invader amphipod Stenothoe georgiana. Originally described from North Carolina (USA), the species was recently found in Chile and the Western Mediterranean. Here, we provide the first record of the species in Macaronesia, Atlantic coasts of continental Europe, North Africa and Australia, and extend its known distribution along the Mediterranean coast. Just like other small crustaceans, shipping (including recreational boating) and aquaculture are probably the main vectors of introduction and secondary spread for this amphipod species. This case of S. georgiana sheds light on the importance of promoting taxonomical knowledge, and building multidisciplinary expertise networks that ensure an effective spread of alien species information. We also encourage the implementation of standardized monitoring methodologies to facilitate early detection of small mobile invaders.