Aquatic insect communities in inland waters of Chile are characterised by the presence certain species depending on water quality, but there is little information statistical ecology structure communities. The aim present study was to apply null models explain aquatic insects middle zone Loa River, Atacama Desert (Antofagasta Region, Chile; 23°S). results co-occurrence showed that associations ...

Invertebrate animals living at the seafloor make up a prominent component of life globally, spanning 10 orders magnitude in body size over 71% Earth's surface. However, integrating information across sizes and sampling methodologies has limited our understanding influence natural variation, climate change human activity. Here, we outline maturing practices that can underpin both feasibility imp...

Abstract Ctenophores are one of the least known invertebrate phyla in Mexico, especially benthic forms which studies incomplete and infrequent, lacking information about their ecology diversity. As part environmental monitoring project ‘Biodiversidad Marina de Yucatán’ conducted southern Gulf Mexico Mexican Caribbean Sea, ctenophore Vallicula multiformis (Coeloplanidae) was identified associati...

A recent study (2021) of biodiversity in Katobo dam pond, western part the Albertine Rift, middle flats Mitumba Mountains chain Uvira territory, revealed presence 20 genera phytoplankton representing 10 families; 5 zooplankton 3 15 species macro invertebrates grouped into 13 families and; two introduced Cichlid fish genera. Planktonic and benthic macro-invertebrate are less diversified compared...

Ecological flows between habitats are vital for predicting and understanding structure and function of recipient systems. Ecological flows across riparian areas and headwater intermittent streams are likely to be especially important in many river networks because of the shear extent of these interfaces, their high edge-to-width ratio, and the alternation of wet and dry conditions in intermitte...

Benthic communities below the photic zone are largely reliant on export of surface-water primary production and flux partially degraded organic matter to seabed, i.e. pelagic?benthic coupling. Over past decades, however, role chemosynthetically produced carbon in food webs has been recognized various habitats. Cold seeps now known be widespread across circumpolar Arctic shelves where natural re...

The Iran Water Resources Management Company constructs many dams to control surface water that provide a new potential for aquaculture activities. Trophic status index and natural potential for fish production were investigated in nine small dam reservoirs from northwest of Iran. Prediction of fish productivity was calculated based on phytoplankton biomass (using chlorophyll a concentration in ...

Since the arrival of invasive quagga mussels Dreissena rostriformis bugensis in Lake Constance, significant changes zooplankton and benthic invertebrate community were observed. Five years later mussel has become dominating species community. Its effects on other components food web, especially those at higher trophic levels such as fish, remain unclear around world. To evaluate actual impact q...

Observations of the interactions of large amplitude internal seiches with the sloping boundary of Lake Simcoe, Canada show a pronounced asymmetry between up- and downwelling. Data were obtained during a 42-day period in late summer with an ADCP and an array of four thermistor chains located in a 5 km line at the depths where the thermocline intersects the shallow slope of the lakebed. The therm...