Results 41 to 50 of about 832,202 (212)

Nutrient inputs in mesocosms of an oligotrophic lake fail to sustain an algal bloom

open access: yesEcosphere
Harmful algal blooms (HABs) rapidly change and threaten aquatic ecosystems. HABs in oligotrophic lakes are becoming more commonly observed, despite the long‐held paradigm that algal blooms cannot happen in low‐nutrient systems.
Jacquelyn L. Lewis   +5 more
doaj   +1 more source

Physico-chemical Parameters and Their Variations in Relation to Fish Production in Zhob River Balochistan [PDF]

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2014
The study of physico-chemical parameters of Zhob River was carried from January- December 2011 and correlated with fish production. The samples of fish were procured from, Zhob River Balochistan with the help of local fishermen.
Ghulam Dastagir   +2 more
doaj  

Light penetration into fresh water [PDF]

open access: yesJournal of Experimental Biology, 1933
ABSTRACT Potassium-on-copper vacuum photo-electric cells, in conjunction with a thermionic potentiometer and Unipivot galvanometer, have been found to be satisfactory for measuring sub-aqueous light intensities. Some characteristic results indicate that the light intensity at the limit of sub-aqueous vegetation may be much
W. H. Pearsall, Philip Ullyott
openaire   +1 more source

Rheology of semi-solid fresh cement pastes and mortars in orifice extrusion [PDF]

open access: yes, 2013
Short fiber-reinforced semi-solid fresh cement pastes and mortars, tailored for extrusion, have much lower water-to-binder ratio and higher viscosity than normal cement pastes or mortars. The rheology of these pastes or mortars cannot be characterized by
Fan, Mizi   +7 more
core   +1 more source

Resistance to flooding of different species of terrestrial oribatid mites (Acari, Oribatida)

open access: yesSoil Organisms, 2018
Resistance to flooding was tested in six terrestrial oribatid mite species with different ecological needs. The silvicolous Galumna lanceata and Oppiella (Oppiella) marginedentata showed low average survival times of seven and 14 days, the moss-dwelling ...
Lisa Bardel, Tobias Pfingstl
doaj   +1 more source

Alternative supplementary biochemic food for growing up the fresh water lobster (Cherax quadricarinatus) [PDF]

open access: yes, 2009
Priyono E, Astirin OP, Setyono P. 2009. Alternative supplementary biochemic food for growing up the fresh water lobster (Cherax quadricarinatus). Nusantara Bioscience 1: 123-130. This research denotes to know the influence of biochemic
ASTIRIN, OKID PARAMA   +2 more
core  

Fresh-water dinoflagellates of Maryland [PDF]

open access: yes, 1947
Collections were made in the summer of 1942 and again at different times in 1946 and 1947. Some collections were not sufficient in numbers to allow for proper identification, so the present paper does not give a complete list.
Thompson, R.H.
core  

Fresh Water from Salt [PDF]

open access: yes, 1949
Seawater reclamation is just around the corner?
Aultman, William W.
core  

Salinity Effects on Strategies of Glycogen Utilization in Livers of Euryhaline Milkfish (Chanos chanos) under Hypothermal Stress

open access: yesFrontiers in Physiology, 2018
The fluctuation of temperature affects many physiological responses in ectothermic organisms, including feed intake, growth, reproduction, and behavior.
Chia-Hao Chang   +6 more
doaj   +1 more source

Student research : Darrin Fresh Water Institute

open access: yes, 2010
Rensselaer produced video highlighting undergraduate student research projects in the Darrin Fresh Water Institute Semester of Study ...
Bramhall, Megan   +2 more
core  

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