Results 51 to 60 of about 934 (164)

Monitoring Boeckella lake, Antarctica Peninsula, from 1986 to 2023, using remote sensing

open access: yesCuadernos Geográficos
The Antarctic Peninsula (AP) has experienced rapid warming in recent years, which has caused permafrost degradation. In the north of AP, in Hope Bay, Boeckella Lake has experienced rapid and sudden drainage events in recent decades driven by thermokarst processes.
Carina Petsch   +3 more
openaire   +1 more source

Comment: Food web interactions and biomanipulation in Australian reservoirs [PDF]

open access: yes, 1997
The authors have been studying the control of phytoplankton biomass in several Australian reservoirs. To manipulate fish communities in order to reduce phytoplankton biomass, one needs a thorough understanding of processes in the plankton-associated food
Matveev, Vladimir, Matveeva, Lilian
core  

Revisiting Elton’s copepods: : lake construction has altered the distribution and composition of calanoid copepods in the British Isles [PDF]

open access: yes, 2017
It is now widely accepted that the construction of new lakes, ponds and reservoirs facilitates the invasion of non-indigenous aquatic species, due largely to low biotic resistance from native communities.
Duggan, Ian, Payne, Richard John
core   +3 more sources

UV-B-induced damage and photoreactivation in three species of Boeckella (Copepoda, Calanoida) [PDF]

open access: yesJournal of Plankton Research, 1997
Solar ultraviolet (UV) radiation poses a threat to most living organisms. Aquatic organisms have evolved three basic mechanisms to cope with harmful levels of radiation. Two mechanisms, avoid- ance (e.g. vertical migration) and photoprotection (e.g. production of photoprotective compounds that act as filters, antioxidants, etc.), serve to minimize the ...
Horacio E. Zagarese   +2 more
openaire   +1 more source

A new species ofBoeckella(Copepoda: Calanoida) from northland, New Zealand [PDF]

open access: yesNew Zealand Journal of Marine and Freshwater Research, 1973
Abstract Boeckella tanea, n.sp. is described. It shows similarities to B. propinqua and B. delicata, and appears to be confined to lakes and ponds in Northland, New Zealand.
openaire   +1 more source

Patrones de distribución de especies sudamericanas de Hyalella (Amphipoda: Hyalellidae) [PDF]

open access: yes, 2014
Distributional patterns of the South American species of the freshwater amphipod genus Hyalella were analysed using a panbiogeographic approach. Five generalized tracks were found: (1) northern Andes to Lake Titicaca (H. dielaii, H.

core   +1 more source

Survival of Ceriodaphnia dubia (Crustacea, Cladocera) exposed to different screens against natural ultraviolet radiation [PDF]

open access: yes, 2011
The current increase of penetration of natural ultraviolet radiation (UVR) in southern South America affects water bodies because the UVR can penetrate the water column.
Acevedo, P.   +2 more
core  

Zooplankton characterisation of Pampean saline shallow lakes, habitat of the Andean flamingoes [PDF]

open access: yes, 2013
The lowland saline shallow lakes in the Pampa de las Lagunas (Argentina), constitute an important habitat for flamingoes Phoenicopterus chilensis Molina and Phoenicoparrus andinus (Philippii).
Barberis, Ignacio Martín   +4 more
core   +2 more sources

Pelagic communities and ecosystem processes in Andean Patagonian lakes

open access: yesEcología Austral, 1998
Limiting nutrients, nitrogen and phosphorus, are of crucial importance in the structure and dynamics of freshwater plankton. Oligotrophic lakes are nutrient limited environments and therefore their plankton dynamics depends mostly on internal mechanisms
Esteban Balseiro, Beatriz E. Modenutti
doaj  

New distribution records of 2Boeckellaspecies in New Zealand (note) [PDF]

open access: yesNew Zealand Journal of Marine and Freshwater Research, 1984
Abstract The freshwater calanoid copepods Boeckella triarticulata and B. hamata were found in ponds near Napier. These are the first records of B. triarticulata in the North Island, New Zealand and of B. hamata in the east coast, North Island.
openaire   +1 more source

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