Neonicotinoid insecticides like thiacloprid enter agricultural surface waters, where they may affect predator-prey-interactions, which are of central importance for ecosystems as well as the functions these systems provide. The effects of field relevant thiacloprid concentrations on the leaf consumption of Gammarus fossarum (Amphipoda) were assessed over 96 h (n = 13-17) in conjunction with its...

Understanding and predicting the outcomes of biological invasions is challenging where multiple invader and native species interact. We hypothesize that antagonistic interactions between invaders and natives could divert their impact on subsequent invasive species, thus facilitating coexistence. From field data, we found that, when existing together in freshwater sites, the native amphipod Gamm...

described as a stenohaline, non-regulating crustacean (Gilles, 1975; Péqueux, 1995). Indeed, this lobster may be considered to be an osmoconformer when living in sea water; however, when confronted with dilute sea water, the lobster hyperregulates its haemolymph osmolarity and by doing so it is able to survive salinities as low as 17 ‰ (Charmantier et al., 1984a,b). Because these animals may ex...

Multidrug/xenobiotic resistance transporters are present in living organisms as a first line defence system against small, potentially harmful molecules from the environment or from internal metabolic reactions. Multidrug resistance associated proteins (MRP) are one type of ATP-Binding-Cassette (ABC) transporters, which also transport dyes such as Fura 2, a calcium chelating fluorescence indica...

abstract this investigation was conducted to replace artificial food with gammarus and study this effect on survival and growth parameters of jewel in case of completely randomized design with 3 treatments and 3 replicates in each treatments. 270 jewel fishes with initial mean weight of 1.22±0.72 were reared in 9 aquariums (30 fishes in each aquarium) with volume of 100 liter water. experimenta...

Citation: Arnal A, Droit A, Elguero E, Ducasse H, Sánchez MI, Lefevre T, Misse D, Bédèrina M, Vittecoq M, Daoust S and Thomas F (2015) Activity level and aggregation behavior in the crustacean gammarid Gammarus insensibilis parasitized by the manipulative trematode Microphallus papillorobustus. Front. Ecol. Evol. 3:109. doi: 10.3389/fevo.2015.00109 Activity level and aggregation behavior in the...

Diseases of lobster shells have a significant impact on fishing industries but the risk of disease transmission between different lobster species has yet to be properly investigated. This study compared bacterial biofilm communities from American (Homarus americanus) and European lobsters (H. gammarus), to assess both healthy cuticle and diseased cuticle during lesion formation. Culture-indepen...

Background: Chironomids seem to be the main cause of occupational allergy to aquarium fi sh food. Objective: The aim of this study was to investigate the pattern of occupational sensitization to 3 different arthropod species used as components of aquarium fi sh food. Methods: The study sample comprised 8 workers from a fi sh food packing department. The control group comprised 40 atopic patient...

Biological invasions are worldwide phenomena that have reached alarming levels among aquatic species. There are key challenges to understand the factors behind invasion propensity of non-native populations in invasion biology. Interestingly, interpretations cannot be expanded to higher taxonomic levels due to the fact that in the same genus, there are species that are notorious invaders and tho...