La agriculturización es un causante de transformación en los territorios. El actual modelo agricultura predominante, basado la aplicación plagui- cidas para mantener el cultivo saludable y sin competencia, no solo afecta a especie objetivo sino también aquellas blanco, impactando biodiversidad local funcionamiento ecosistemas. del presente estudio fue analizar cambios usos suelo Cuenca Alta Arr...

So far, ecotoxicological studies used biomarkers of exposure or of effects in order to investigate the impacts of contaminated areas on biota (Peakall, 1994 [6]). However, although these results are important in the ecotoxicological risk assessment, biomarkers are very specific and only provide information on the biological processes or physiological pathways targeted by the biomarkers experime...

The euryhaline amphipod Gummarus dueheni colonized the saline sewage treatment plant at Looe, Cornwall, in 1973 and has established a thriving population [I] . After full operation was started, the primary settlement tanks became too anoxic for amphipod survival, recruitment ceased and the population became confined to the filter beds and humus tanks. I t is from the latter that individuals are...

Although the Brdy Protected Landscape Area is located not far from Prague on border between central and western Bohemia, there was very little published unpublished data its aquatic malacofauna. For this reason, a more detailed survey of molluscs carried out in 2020–2022. Altogether with previous data, 27 species were found at 108 studied sites, including springs, small streams, fishponds, pool...

Photoaldrin, photodieldrin, and photoheptachlor are more toxic than their corresponding parent compounds (aldrin, dieldrin, and heptachlor) to freshwater invertebrates and vertebrates, and to adult houseflies. The increase in toxicity is very significant in the case of the amphipod, Gammarus (1 .5 -12 times), bluegill fry (3.6 5.7 times), mosquito larvae, Aedas (2 .3 -6 times), minnow fry (2.5 ...

The effects of multiple experimental floods in the same year on the ecology of a river (River Spöl) below a large reservoir were investigated. In the flood year (2000), three floods of different magnitude (10 m/s on 15 June, 25 m/s on 5 July, and 10 m/s on 10 August) were implemented, each lasting 7–8 h. Regulated baseflow discharge was maintained at less than 2.5 m/s. Samples of macroinvertebr...

Biomonitoring using benthic macroinvertebrates has been used to assess water quality in Europe since the early 20th century. Most methods use community-level measurements, and the use of single-species responses has been limited, despite their potential benefits as sensitive, early warning indicators. Here we evaluate a single-species in situ assay in which the response is feeding inhibition of...

1 year and the receiving system batteries are replaced by divers at intervals of up to 4 weeks. In field tests, crab (Cancer pagurus L.) and lobster (Homarus gammarus (L.)) activity was monitored at an artificial reef for 14 months. Examples of the type of information acquired are presented to illustrate the capabilities of the system and potential applications are discussed. Limitations of dig...