Results 31 to 40 of about 3,006 (227)

The Acute Toxicity of Salinity in Onshore Unconventional Gas Waters to Freshwater Invertebrates in Receiving Environments: A Systematic Review

open access: yesEnvironmental Toxicology and Chemistry, Volume 41, Issue 12, Page 2928-2949, December 2022., 2022
Comparing the acute toxicity (48–96‐h) of sodium chloride (NaCl) and/or synthetic marine salt laboratory exposures of freshwater invertebrates to the salinity in unconventional gas produced waters from coal bed methane and shale gas extraction, and how other major ions (Ca2+, K+, Mg2+, CO32–, HCO3–, SO42–) can influence the toxicity of Na+ and Cl– ions
Daniel J. Willems   +2 more
wiley   +1 more source

Population response to connectivity restoration of high elevation tropical stream reaches in Hawai'i

open access: yesConservation Science and Practice, Volume 4, Issue 12, December 2022., 2022
Abstract Tropical island streams are heavily impacted by water withdrawals to the detriment of native ecosystems. Freshwater fauna in the tropics often exhibit diadromous life‐history strategies, requiring hydrologic connectivity between upstream and nearshore habitats.
Ayron M. Strauch   +6 more
wiley   +1 more source

Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp Neocaridina davidi Bouvier, 1904 (Caridea: Atyidae) [PDF]

open access: yes, 2017
The effect of density on growth, sex ratio, survival, and biochemical composition of the red cherry shrimp, Neocaridina davidi Bouvier, 1904, was studied to determine optimum rearing conditions in this ornamental species.
Delevati Colpo, Karine   +3 more
core   +2 more sources

DNA metabarcoding unravels unknown diversity and distribution patterns of tropical freshwater invertebrates

open access: yesFreshwater Biology, Volume 67, Issue 8, Page 1411-1427, August 2022., 2022
Abstract Tropical freshwater invertebrate species are becoming extinct without being described, and effective conservation is hampered by a lack of taxonomic and distribution data. DNA metabarcoding is a promising tool for rapid biodiversity assessments that has never been applied to tropical freshwater invertebrates across large spatial and taxonomic ...
Alexandra Zieritz   +14 more
wiley   +1 more source

Effects of river regulation on aquatic invertebrate community composition: A comparative analysis in two southern African rivers. [PDF]

open access: yesEcol Evol
This study compared aquatic invertebrate communities between a regulated and unregulated river and sought to determine whether the largest inland lake of the region, which receives water from both rivers, resembles the aquatic invertebrate communities of either river.
de Necker L   +5 more
europepmc   +2 more sources

Development of a flow‐sensitive macroinvertebrate index for Australian rivers

open access: yesRiver Research and Applications, Volume 38, Issue 5, Page 846-862, June 2022., 2022
Abstract Hydrologically sensitive macroinvertebrate indices have been developed in Europe, the Americas and New Zealand to serve many purposes such as monitoring ecological responses to drought, flow regulation, water extraction and the provision of environmental flows.
Bruce C. Chessman   +2 more
wiley   +1 more source

Calcium and strontium stable isotopes reveal similar behaviors of essential Ca and nonessential Sr in stream food webs

open access: yesEcosphere, Volume 13, Issue 2, February 2022., 2022
Abstract Recent studies showed the potential of stable isotopes of the macronutrient calcium (δ44/40Ca) and nonessential strontium (δ88/86Sr) as new trophic level indicators in terrestrial vertebrates and marine teleost fishes. In this study, we tested whether similar Ca and Sr isotopic fractionation trends existed in macroinvertebrate‐dominated stream
Kai Nils Nitzsche   +6 more
wiley   +1 more source

Extended Parental Care in the Freshwater Shrimp Genus Dugastella Bouvier, 1912 (Decapoda, Atyidae, Paratyinae) [PDF]

open access: yes, 1994
5 páginas, 1 figura.Parental care and extended parental care are known behaviours in decapod crustaceans (see Thiel, 2000, 2003). While parental care before hatching, which involves incubation of the eggs (carrying, cleaning, and aeration) by females ...
Huguet, D.   +3 more
core   +1 more source

Water quality related macroinvertebrate community responses to environmental gradients in the Portoviejo River (Ecuador) [PDF]

open access: yes, 2017
The Portoviejo River, located in the central western part of Ecuador, has been heavily impacted by damming, intensive agriculture and untreated wastewater discharge.
Boets, Pieter   +10 more
core   +1 more source

Population biology of the freshwater shrimp Atya scabra (Leach, 1816) (Crustacea: Decapoda) in São Francisco River, Brazil: evidence from a population at risk of extinction

open access: yesNauplius, 2021
Considering the environmental impacts to rivers caused by the exploitation of water resources and the consequences of these impacts upon fauna, the objective of this study was to evaluate the population biology of the shrimp Atya scabra (Leach, 1816) in ...
Samara de P. Barros-Alves   +2 more
doaj   +1 more source

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