Results 21 to 30 of about 21,035 (280)

Seasonal abundance of small cladocerans in Lake Mangakaware, Waikato, New Zealand [PDF]

open access: yes, 1999
The seasonal changes in the dynamics and life histories of the Cladocera in Lake Mangakaware, North Island, New Zealand, were studied over 19 months by sampling at weekly or 2-weekly intervals.
Chapman M. A.   +19 more
core   +2 more sources

Ecology of Cladocera species from Central America based on subfossil assemblages

open access: yesAdvances in Oceanography and Limnology, 2016
Cladocera species composition was analyzed in surface sediments of 29 lakes in Central America (Guatemala, El Salvador and Honduras). The material studied was collected with an Ekman grab in autumn 2013 from lakes located in lowland, highland and ...
Marta Wojewódka   +6 more
doaj   +1 more source

Evidence on Night Movements of Macroinvertebrates to Macrophytes in a Pampean Stream [PDF]

open access: yes, 2014
Nocturnal invertebrate abundance peaks in lotic systems are usually associated to drift, however, diel migrations other than drift may be important in slow-flowing systems.
Ferreiro, Nicolas Andres
core   +1 more source

Subfossil faunal and floral remains (Cladocera, Pediastrum) in two northern Lobelia lakes in Finland

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
The analysis of lake sediment cores have been long used as historical integrators of environmental changes. Nutrient poor isoetid lakes remain under studied in the north boreal region.
Szeroczyńska K., Zawisza E.
doaj   +1 more source

Consecutive earthquakes temporarily restructured the zooplankton community in an Alpine Lake [PDF]

open access: yes, 2012
Two consecutive earthquakes temporary changed a zooplankton community in a high-mountain Lake Krn (altitude 1383 m a.s.l.). It was dominated by the eurytherm copepod, Cyclops vicious, until 1998, when the first earthquake hit the lake (EMS = 5.6).
Brancelj, Anton   +4 more
core   +1 more source

The Current State of Zooplankton Diversity in the Middle Caspian Sea during Spring

open access: yesDiversity, 2023
The study of planktonic animals of the Caspian Sea is topical and, during the last centuries, has brought and continues to bring new results. This is an inevitable process attributed to the introduction of non-indigenous predatory representatives of ...
Moldir Aubakirova   +8 more
doaj   +1 more source

Factors affecting methylmercury biomagnification by a widespread aquatic invertebrate predator, the phantom midge larvae Chaoborus [PDF]

open access: yes, 2012
MeHg biomagnification by the phantom midge Chaoborus in relation to MeHg concentrations in their prey and its migratory behavior was investigated in two Canadian Precambrian Shield lakes.
Aldamman, Lama   +5 more
core   +2 more sources

A Non-Stressful Temperature Rise and Greater Food Availability Could Increase Tolerance to Calcium Limitation of Daphnia cf. pulex (Sensu Hebert, 1995) Populations in Cold Soft-Water Lakes

open access: yesBiology, 2022
Calcium (Ca) is an important driver of community structure in freshwaters. We examined the combined effects of increased temperatures and variations in food quantity on the tolerance to low Ca of Daphnia pulex.
Eloísa Ramos-Rodríguez   +2 more
doaj   +1 more source

Epizooic Diatoms on the Cerci of Ephemeroptera (Caenidae) Naiads [PDF]

open access: yes, 2018
Using scanning electron microscopy, epizooic diatoms were observed growing on the cerci of Caenis amica Hagen naiads (Ephemeroptera, Caenidae). Meridion circulare (Greville) C.
Wujek, Daniel E
core   +3 more sources

Analyzing the fauna of planktonic organisms of aquatic ecosystems in Penza region

open access: yesИзвестия высших учебных заведений. Поволжский регион: Естественные науки, 2023
Background. Studying the fauna of aquatic organisms in various types of ecosystems within the region is necessary to understand the role of biodiversity in the ecosystem functioning.
V.A. Senkevich   +3 more
doaj   +1 more source

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