Recently established Asian tiger shrimp Penaeus monodon Fabricius, 1798 consume juvenile blue crabs Callinectes sapidus Rathbun, 1896 and polychaetes in a laboratory diet-choice experiment

Abstract

The giant garden slug Limax maximus Linnaeus, 1758 (Limacidae, Pulmonata) is considered one of the most widely spread terrestrial molluscs in the world and is a formidable pest of agricultural and horticultural crops. This slug was recently introduced to Japan, where its population is now rapidly increasing and spreading. A naturalised population of L. maximus was first discovered in Hokkaido, Japan, in 2012 in the isolated natural forest of Maruyama Forest Park in Sapporo City, and the species has become common in this area. In the present study, we investigated observations of L. maximus reported by ordinary citizens acting as "citizen scientists" to assess the recent expansion of this invasive slug. We posted an announcement in the local newspaper requesting reports of the occurrence of L. maximus via e-mail and analysed 38 observations provided by local citizens. As a result of these reports, 16 naturalised populations of L. maximus were detected in Hokkaido, several of which were quite far from the original population in Sapporo City. Moreover, a terrestrial macrophagous leech, Orobdella kawakatsuorum Richardson, 1975 (Arhynchobdellida, Orobdellidae), is reported as a potential native predator of L. maximus for the first time.

Reportes del camarón tigre (Penaeus monodon) en la pesca artesanal de Sánchez, Bahía de Samaná, República Dominicana

“…La presencia del P. monodon en la pesca de camarones de Sánchez, puede deberse a las condiciones climáticas, hidrológicas y ecológicas que posee la bahía de Samaná ya que es la zona de mayor producción camaronera (Herrera-Moreno, 2005;Alam et al, 2022;CODOPESCA, 2022). El camarón tigre se captura en esta bahía con redes de arrastre y de enmalle junto a L. schmitti, F. aztecus F. subtilis, P. dorarum y X. kroyeri, especies nativas que podrían estar siendo amenazadas por la agresividad de la especie de estudio, la cual ha sido documentada como depredador de crustáceos, moluscos y otros invertebrados (Hill et al, 2017).…”

Presencia del camarón tigre gigante <i>Penaeus monodon</i> (Decapoda: Penaeidae) en las costas del Atlántico Americano. Revisión

“…2016a. Hill et al (2017) señalan que, debido a ser preferentemente carnívoro, P. monodon fue un fuerte consumidor de jaiba azul Callinectes sapidus (Rathbun, 1896) y poliquetos (Capitellidae and Nereidae) en comparación de los camarones F. aztecus (Ives, 1891) y L. setiferus (Linneaus, 1776) y que son especies preferentemente omnívoras.…”