| colonization and establishment of pomphorhynchus laevis (acanthocephala) in an isolated english river. | the successful colonization, establishment and spread of pomphorhynchus laevis in a small, isolated, devon river 128 km from the parasite's nearest focus in dorset was followed over 11 years from 1985. the parasite was first detected in anguilla anguilla and platichthys flesus in 1988: by 1995 it had attained prevalence levels of 22.6% in a. anguilla and 43.6% in p. flesus and also occurred in 100% salmo trutta, 50% cottus gobio and noemacheilus barbatulus. as judged by prevalence, abundance, pr ... | 1996 | 8991914 |
| response of invertebrates from the hyporheic zone of chalk rivers to eutrophication and land use. | whereas the response of lotic benthic macroinvertebrates to different environmental stressors is a widespread practice nowadays in assessing the water and habitat quality, the use of hyporheic zone invertebrates is still in its infancy. in this study, classification and regression trees analysis were employed in order to assess the ecological requirements and the potential as bioindicators for the hyporheic zone invertebrates inhabiting four lowland chalk rivers (south england) with contrasting ... | 2016 | 26531711 |
| spatial (bio)accumulation of pharmaceuticals, illicit drugs, plasticisers, perfluorinated compounds and metabolites in river sediment, aquatic plants and benthic organisms. | organic contaminants such as pharmaceuticals, personal care products (ppcps) and other emerging contaminants (ecs) are known to persist in the aquatic environment and many are indicated as endocrine, epigenetic, or other toxicants. typically, the study of ppcps/ecs in the aquatic environment is limited to their occurrence dissolved in river water. in this study, accumulation and spatial distribution of thirteen ppcps/ecs were assessed in aquatic sediment (n = 23), periphyton (biofilm, n = 8), pl ... | 2017 | 29248854 |