Results 91 to 100 of about 3,469 (229)

Macroinvertebrate communities associated with littoral zone habitats and the influence of environmental factors in Malilangwe Reservoir, Zimbabwe

Knowledge and Management of Aquatic Ecosystems, 2012
The aim of our study was to investigate macroinvertebrate communities so as to understand factors and processes structuring macroinvertebrate communities in a small reservoir, Malilangwe reservoir over seven months (April to October).
Dalu T., Clegg B., Nhiwatiwa T.
doaj   +1 more source

A long-term copper exposure on freshwater ecosystem using lotic mesocosms: Individual and population responses of three-spined sticklebacks (Gasterosteus aculeatus) [PDF]

, 2007
Three-spined stickleback (Gasterosteus aculeatus) was used as the highest trophic level predator in an outdoor mesocosm study assessing the effect of environmentally realistic copper concentration (0, 5, 25 and 75 μg L−1) over 18 months of continuous ...
Bonzom, Jean-Marc, Gauthier, Laury, Joachim, Sandrine, Lamothe, Sylvain, Palluel, Olivier, Roussel, Hélène   +5 more
core   +4 more sources

SAÚDE AMBIENTAL E CONDIÇÕES DE BALNEABILIDADE EM COLEÇÃO HÍDRICA DO MÉDIO RIO DOCE (MG)

Revista Brasileira de Ciências Ambientais, 2016
O objetivo deste trabalho foi avaliar a saúde ambiental de cinco lagoas: da Prata, do Pau, Vermelha, Silvana e Nova, em uma região do Médio Rio Doce no Estado de Minas Gerais, Brasil.
Marcelo Marcos Magalhães, Vera Lúcia de Miranda Guarda, Tânia Gonçalves dos Santos   +2 more
doaj   +1 more source

Effects of water temperature on summer periphyton biomass in shallow lakes: a pan-European mesocosm experiment [PDF]

, 2015
Periphyton communities play an important role in shallow lakes and are controlled by direct forces such as temperature, light, nutrients, and invertebrate grazing, but also indirectly by planktivorous fish predation.
Adrian, Rita, Beklioğlu, Meryem, Filiz, Nur, Hejzlar, Josef, Hilt, Sabine, Mahdy, Aldoushy, Papastergiadou, Eva, Scharfenberger, Ulrike, Özkundakci, Deniz, Šorf, Michal [u.v.m.]   +9 more
core   +1 more source

Revealing hidden sources of uncertainty in biodiversity trend assessments

Ecography, Volume 2025, Issue 5, May 2025.
Idiosyncratic decisions during the biodiversity trend assessment process may limit reproducibility, whilst ‘hidden' uncertainty due to collection bias, taxonomic incompleteness, and variable taxonomic resolution may limit the reliability of reported trends.
Martin A. Wilkes, Morwenna Mckenzie, Andrew Johnson, Christopher Hassall, Martyn Kelly, Nigel Willby, Lee E. Brown   +6 more
wiley   +1 more source

Stream Invertebrate Responses to Fine Sediment Depend on the Organic and Inorganic Components

Freshwater Biology, Volume 70, Issue 3, March 2025.
ABSTRACT Excess fine sediment ( < 2 mm) is a pervasive stressor of aquatic systems at a global scale. To date, most research quantifying ecological response to deposited fine sediment has been conducted without distinguishing between the organic and inorganic components of fine sediment, leaving mechanistic understanding of how fine sediment affects ...
Morwenna McKenzie, Adrian L. Collins, Noah G. Davis, Roger Hodson, J. Iwan Jones, Christoph D. Matthaei, John F. Murphy, Annika Wagenhoff, Kate L. Mathers   +8 more
wiley   +1 more source

From subsidies to stressors: Positively skewed ecological gradients alter biological responses to nutrients in streams

Ecological Applications, Volume 35, Issue 1, January 2025.
Abstract Subsidy–stress gradients offer a useful framework for understanding ecological responses to perturbation and may help inform ecological metrics in highly modified systems. Historic, region‐wide shifts from bottomland hardwood forest to row crop agriculture can cause positively skewed impact gradients in alluvial plain ecoregions, resulting in ...
Stephen E. DeVilbiss, Jason M. Taylor, Matthew B. Hicks   +2 more
wiley   +1 more source

The most cosmopolitan freshwater gastropod invades the Lower São Francisco River: first record of Physella acuta in Sergipe

Biota Colombiana
Biological invasion and habitat modification are major drivers of biodiversity loss. River damming, in particular, leads to hydrological, limnological, and habitat disruptions, and facilitates the introduction, establishment and spread of alien species.
Caio Correia Régis-Silva, Leonardo Cruz da Rosa, Ana Paula Siqueira Dornellas   +2 more
doaj   +1 more source

Copper and Cadmium Toxicity on Freshwater Snail Physella acuta as Biological Indicator [PDF]

Kirkuk Journal of Science
Biological indicators are essential for detecting contaminants globally because they can inform us about the long-term effects of many pollutants in the environment.
Shelan Khudhur
doaj   +1 more source

Fauna of gastropod molluscs in the Curonian Lagoon littoral biotopes (Baltic Sea, Kaliningrad region, Russia) [PDF]

, 2011
A survey of the gastropod mollusc fauna in the coastal waters of the southern part of the Curonian Lagoon (Kaliningrad region, Russia) were carried out. Study revealed 34 aquatic gastropods representing 30% of Prosobranchia and 70% of Pulmonata. Obtained
Dmitry Filippenko
core