Results 91 to 100 of about 13,377 (210)

Diel vertical migration strategies of zooplankton in oligotrophic Russell Pond, New Hampshire [PDF]

open access: yes, 2014
Russell Pond is an ultra-oligotrophic lake with low chlorophyll a (1.9 mg L-1), total phosphorus (3.4 mg L-1), high Secchi Disk (10.4 m) and high light transmission (water coefficient of water, kw=0.33). Vertical migration of Chaoborus, Bosmina, Daphnia,
Dobe, Kelsey Ann
core   +1 more source

Temperature Coefficients for Development in Cladocerans.

open access: yesExperimental Biology and Medicine, 1927
In an earlier paper1 it was shown that the temperature characteristics for the duration of an adult instar in several species of cladocerans were of the same order of magnitude as those found for development in other arthropods, but that certain specific differences were still markedly manifest.
openaire   +1 more source

Ecological significance of seasonal variation in clutch-size of Arctodiaptomus bacillifer in alpine lakes of high altitudes (Val Bognanco) [Translation from: Bollettino di Zoologia 37 491-492, 1970] [PDF]

open access: yes, 1977
This brief paper describes the significance of seasonal variation in clutch-size of the copepod Arctodiaptomus bacillifer in alpine lakes of high altitudes (Val Bognanco).
Ferrari, I.
core  

Limnological study of Zealand Pond, White Mountains, New Hampshire [PDF]

open access: yes, 1999
Zealand Pond, New Hampshire, was chosen as the site of a remote lake study. Data were collected between July 18 and August 29,1997. Zealand Pond had a relatively high pH (6.3-6.9) and alkalinity (2.3- 3.1 mg CaCO3 /liter), considering its small size and ...
LeFevre, Anne
core   +1 more source

Biogeographic patterns and environmental drivers of cladocerans in surface lake sediments across China

open access: yesEcological Indicators
Aquatic biodiversity is essential for maintaining lake ecosystem health, yet large-scale studies linking zooplankton communities, particularly cladocerans to environmental gradients remain limited in the world's most populous heartland (Asia).
Wenjia Wang   +13 more
doaj   +1 more source

Management of Biesboch reservoirs for quality control with special reference to eutrophication [PDF]

open access: yes, 1992
The three Biesbosch Reservoirs are pumped storage reservoirs, fed with rather polluted and highly eutrophic water from the River Meuse. Air injection at the bottom of the reservoirs prevents thermal stratification, which would otherwise result in serious
Oskam, G., van Breemen, L.
core  

The Effects of Alewife on the Zooplankton Community in Townhouse Pond [PDF]

open access: yes, 2009
The purpose of this study was to determine what plankton species was more dominant in Townhouse Pond and what effects predation has on the food web. Plankton size is important when determining pelagic food web structure.
Toupin, Sarah
core   +1 more source

Food and feeding habits of Synodontis nigrita from the Osun River, SW Nigeria [PDF]

open access: yes
An investigation was conducted into the food and feeding habits of Synodontis nigrita from the Osun River near Epe, Lagos, Nigeria. The food items in the stomach of the S.
Olojo, E.A.A.   +2 more
core  

Zooplankton - fish interaction in the littoral zone of Nyanza Gulf, Lake Victoria [PDF]

open access: yes, 1999
The zooplankton community of the littoral zone of Nyanza Gulf, Lake Victoria, was studied between June 1998 and June 1999 to identify and quantify various zooplankton groups, and investigate the interactions that occur between them and the littoral fish ...
Owili, M.
core  

Physical measures to inhibit planktonic cyanobacteriae [PDF]

open access: yes, 1992
In a small lake, intermittent destratification was installed after several other physico-chemical and physical in-lake therapy measures (phosphorus immobilization, permanent destratification) had been tested without great success.
Gruhl, E., Steinberg, C.E.W.
core  

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