List of Tables Table 1 Advantages and disadvantages of sediment toxicity tests (modified from ASTM 2003a). Table 2 Rating of selection criteria for estuarine or marine amphipod sediment toxicity testing (ASTM 2003a). Table 3 Comparison of habitat characteristics and other life history parameters of four estuarine or marine amphipod species used in sediment toxicity tests (ASTM Table 4 Recommend...

Amphipods are recognised as an important component of freshwater ecosystems and are frequently used as an ecotoxicological test species. Despite this double interest, there is still a lack of information concerning toxic impacts on ecologically relevant behaviours. The present study investigated the influence of cadmium (Cd), a non-essential heavy metal, on both antipredator behaviours and anti...

Abstract Three cumacean species, Eudorella nana Sars, 1879, Leucon affinis Fage, 1951, siphonatus Calman, 1905, were recorded for the first time and one rare amphipod presence, Stenothoe bosphorana Sowinsky, 1898, was confirmed in Adriatic basin.

The amphipod Monoporeia a&is (LindstrGm) exhibits long-term population oscillations in oligotrophic Lake V&tern. Correlation showed profundal oxygen and temperature, and intraspecific and predatory interactions to be poor explanatory variables. Conversely, the interannual variability in food availability-diatom biovolumewas highly correlated with amphipod total density at t + 1 yr and the densi...

Abstract Detritivores are pivotal in forest streams as they process detritus and promote secondary production. Many studies have addressed the preference of freshwater detritivores towards materials differing quality. Nevertheless, few compare resource preferences laboratory with availability field. In present study, feeding two stream (the caddisfly Sericostoma pyrenaicum amphipod Echinogammar...

Three independent trials were conducted using mortality and burial as endpoints. Amphipod mean lethal concentration to 50% (LC50) was 227 microg/L. One-hour burial as a sublethal endpoint increased the sensitivity of the toxicity test by 40%; however, most amphipods that survived exposure were able to recover within 24 to 48 h. This toxic hangover was dose-dependent.

Amphipod crustaceans comprise a significant and enigmatic component of Australian groundwater ecosystems, particularly in the Pilbara region Western Australia. Many amphipod species Pilbara, including genus Nedsia Barnard & Williams, 1995, are considered short range endemics, poorly or contentiously defined by taxonomic treatments based on morphology alone have uncertain distributions as co...

The first Chilean species of Bogidiellid amphipod, Patagongidiella wefkoi n. sp., is described from freshwater springs in the Osorno Province, Los Lagos Region. The new taxon is characterized principally by the structure of the hypertrophied facial robust seta present on the peduncle of male uropod 1, and the modified dimorphic setae on the exopod of male pleopod 2. The new species is described...

Both leucomorph and anamorph developmental stages of Anamixis bananaramasp. n., are illustrated and described from shallow back reef environments of Moorea, French Polynesia. Distinguished by vestigial first gnathopods that persist in post-transformational adult males, this is the second species in the genus to exhibit this unusual character. In other features such as coxae and second gnathopod...