Results 121 to 130 of about 74,500 (289)

Microcystins in components of twelve New Hampshire lakes of varied trophic status [PDF]

open access: yes, 1999
Cyanobacteria toxins, called microcystins (MCs), were found in components of twelve, stratified New Hampshire (USA) lakes of varied trophic status during the summer of 1998.
Johnson, Kimberly M.
core   +1 more source

Ecological genetics of the cyclic parthenogens, Daphnia longispina and Daphnia pulex [PDF]

open access: yesHereditas, 2008
A population of Daphnia longispina was found to possess a relatively stable genetic structure, while a population of D. pulex appeared genetically very unstable. Unlike the population of D. magna inhabiting singlespecies pools in the same area and which maintained approximately the same level of genetic variation throughout seasons, the D.
openaire   +1 more source

Biogeography of the ‘water flea’ Daphnia O. F. Müller (Crustacea: Branchiopoda: Anomopoda) on the Indian subcontinent

open access: yesJournal of Limnology, 2016
Studies on Daphnia distribution in Indian subcontinent have been few and regionally restricted despite Daphnia being by far the most studied cladoceran.
Sameer M. Padhye   +3 more
doaj   +1 more source

Machine Learning-Based Water Quality Prediction Using Octennial In-Situ Daphnia Magna Biological Early Warning System Data

open access: green, 2023
Heewon Jeong   +6 more
openalex   +1 more source

Effects of Chronic Waterborne Nickle Exposure on Two Successive Generations of \u3cem\u3eDaphnia Magna\u3c/em\u3e [PDF]

open access: yes, 2004
In a 21-d chronic toxicity test in which an F0 generation of Daphnia magna were exposed to waterborne Ni, the noobservable-effect concentration (for survival, reproduction, and growth) was 42 μg Ni L-1, or 58% of the measured 21-d median lethal ...
McGeer, James C.   +2 more
core   +1 more source

Daphnia

open access: yes
Citation: 'Daphnia' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14564 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Assessment of Pelagic Food Webs in Mendums Pond, NH [PDF]

open access: yes, 2009
This study focused on the relationship between plankton in Mendums Pond, NH. A grazing experiment was conducted to determine the effect of zooplankton on the phytoplankton population.
Bunker, Jonathan, Marcek, Ben
core   +1 more source

Live observation of the oviposition process in Daphnia magna.

open access: yesPLoS ONE, 2019
In favorable conditions, Daphnia magna undergoes parthenogenesis to increase progeny production in a short time. However, in unfavorable conditions, Daphnia undergoes sexual reproduction instead and produces resting eggs.
Dohyong Lee   +4 more
doaj   +1 more source

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