Results 21 to 30 of about 21,592 (280)

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

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 role of paleolimnology in climate and environment reconstruction and lake restoration in light of research on selected bioindicators [PDF]

open access: yesThe Holistic Approach to Environment, 2020
Paleolimnologists and ecologists study biotic and abiotic variables to track long-term and short-term environment changes. Microscopic invertebrates, phytoplankton of freshwater ecosystems, and pollen grains have been extensively studied during the last ...
Marta Wojewódka, Dario Hruševar
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

Biến động cấu trúc thành phần loài giáp xác râu ngành (Cladocera) dưới sự thay đổi của độ mặn vùng cửa sông Hậu

open access: yesTạp chí Khoa học Đại học Cần Thơ
Nghiên cứu được thực hiện nhằm đánh giá sự biến động thành phần loài giáp xác râu ngành (Cladocera) dưới sự thay đổi của độ mặn ở vùng cửa sông Hậu. Độ mặn và Cladocera được thu hàng tháng trong thời gian từ tháng 7/2017 đến tháng 6/2018 vào lúc đỉnh ...
Nguyễn Công Tráng   +2 more
doaj   +1 more source

Beytepe Göleti’ndeki Zooplanktonun Mevsimsel Kompozisyonu Üzerine Bir Araştırma

open access: yesJournal of Agricultural Sciences, 2002
Bu çalışmada, Ankara-Beytepe Göleti’ndeki zooplanktonun mevsimsel kompozisyonu ve ortalama bollukları incelenmiştir. Zooplankton örnekleri Temmuz 1998-Mayıs 1999 periyodunda mevsimsel olarak alınmıştır.
Sibel Korkmaz
doaj   +1 more source

Daphnia O. F. Müller, 1785 (Crustacea: Branchiopoda: Anomopoda) species of Iran: Morphology and Identification [PDF]

open access: yesIranian Journal of Animal Biosystematics, 2017
Daphnia a wide spread member of Cladocera live in different aquatic environments ranging from hypersaline swamps to freshwater lakes, lagoons, streams and rivers.
ali mohammadyari   +4 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

Crustaceans of Wrangel Island (Russia): species composition, community structure and variability

open access: yesNature Conservation Research: Заповедная наука, 2020
High-latitude aquatic ecosystems and the communities inhabiting them are the key sites for environmental research and observations of global climate changes.
Anna А. Novichkova, Elena S. Chertoprud
doaj   +1 more source

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