Results 41 to 50 of about 7,187 (221)

Impact of Feeding Strategies on Trophic Dynamics, Growth Performance and Sustainability of Nile Tilapia in Semi‐Intensive Aquaculture Systems

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Feed costs and limited knowledge of feeding strategies are a major constraint to the sustainability of semi‐intensive Nile tilapia aquaculture systems in sub‐Saharan Africa. In semi‐intensive systems, Nile tilapia (Oreochromis niloticus) utilizes natural pond production and supplemental feed, but their relative contributions to growth remain ...
Safina Musa, Christopher Mulanda Aura, Tumi Tomasson, Ólafur Sigurgeirsson, Sigurður S. Snorrason, Godfrey Kawooya Kubiriza, Helgi Thorarensen   +6 more
wiley   +1 more source

Diversity of hard-bottom fauna relative to environmental gradients in Kongsfjorden, Svalbard [PDF]

, 2013
A baseline study of hard-bottom zoobenthos in relation to environmental gradients in Kongsfjorden, a glacial fjord in Svalbard, is presented, based on collections from 1996 to 1998. The total species richness in 62 samples from 0 to 30 m depth along five
Agatsuma Y, Ambrose W.G, Andrey Voronkov, Averintzev V.G, Basedow S.L, Berge J, Beszczynska-Møller A, Beuchel F, Beuchel F, Bick A, Bjørn Gulliksen, Blazewicz-Paszkowycz M, Buhl-Mortensen L, Carlsen B.P, Chenelot H, Clarke K.R, Clarke K.R, Clarke K.R, Cottier F, Derjugin K.M, Golikov A.N, Golikov A.N, Golikov A.N, Golikov A.N, Gontar V.I, Gray J.S, Gray J.S, Gulliksen B, Gulliksen B, Gulliksen B, Gulliksen B, Haakon Hop, Hagen J.O, Hanelt D, Holte B, Hop H, Hop H, Ingvaldsen R, Ito H, Jørgensen L.L, Kaczmarek H, Kang S.-H, Keck A, Kedra M, Kedra M, Kendall M.A, Kendall M.A, Kuklinski P, Kuklinski P, Kuklinski P, Kuklinski P, Kuklinski P, Kuklinski P, Kuklinski P, Lippert H, Madsen H, McMahon K.W, Palerud R, Propp M.V, Ronowicz M, Ronowicz M, Sahade R, Schmid M, Sirenko B.I, Soot-Ryen T, Spärck R, Swerpel S, Thorson G, Thorson G, Voronkov A.Y, Walkusz W, Warwick R.M, Warwick R.M, Weslawski J.M, Weslawski J.M, Wessels H, Wessels H, Willis K, Willis K.J, Wlodarska-Kowalczuk M, Wlodarska-Kowalczuk M, Wlodarska-Kowalczuk M   +81 more
core   +3 more sources

Structure and Distribution of Zoobenthos of the Kharbey Lake System [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2014
Zoobenthos communities of Bolshoy Kharbey lake system were studied in 2009-2012. Species composition and trophic structure, fauna of dominant groups (Oligochaeta, Crustacea, Chironomidae), quantitative development and distribution of bottom invertebrates
Maria A. Baturina, Olga A. Loskutova, Vladimir M. Shchanov   +2 more
doaj  

Comparison of systems of biological indication approved during the course of the joint Anglo-Soviet investigations held under the auspices of the Institute of Hydrobiology of the Academy of Sciences of the Ukrainian SSR [PDF]

, 1980
In accordance with the plan for joint Anglo-Soviet scientific and technical collaboration on environmental problems, the comparative evaluation of systems of hydrobiological analysis of the surface water quality started in 1977 at the Regional Laboratory
Abakumov, V.A., Polishchuk, V.V.
core  

Relative impacts of morphological alteration to shorelines and eutrophication on littoral macroinvertebrates in Mediterranean lakes [PDF]

, 2015
Development of effective methods for assessing the ecological status of lakes based on littoral benthic fauna has been hampered by the lack of quantitative data on the relative impacts of key pressures on the benthic community.
BAZZANTI, Marcello, Di Vito, Valentina, Frosali, Davide, Livretti, Francesco, MASTRANTUONO, Luciana, Pilotto, Francesca, Pusch, Martin T., Sena, Fabrizio, SOLIMINI, ANGELO GIUSEPPE   +8 more
core   +1 more source

Behavioural tactics across thermal gradients align with partial morphological divergence in brook charr

Journal of Animal Ecology, Volume 95, Issue 2, Page 359-376, February 2026.
Our study reveals that brook charr adopt distinct ‘warm’ and ‘cool’ behavioural tactics to balance foraging and thermal stress in stratified lakes. By linking fine‐scale thermal movements to morphology, we show how temperature‐driven habitat use promotes individual specialization and potential ecotypic divergence under climate change.
Aliénor Stahl, Marc Pépino, Andrea Bertolo, Pierre Magnan   +3 more
wiley   +1 more source

Macrozoobenthos in tributaries of the lower reaches of the ponoy river (Kola peninsula, Russia) in the habitats of young atlantic salmon (Salmo Salar L.) and brown trout (Salmo Trutta L.)

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
The study of the composition, abundance and biomass of zoobenthos was carried out in the mouth of the tributaries of the lower reaches of the Ponoy River to determine the state of the ecosystems of the river and assess the feeding resources for salmonid ...
Igor Baryshev, Artem Tkachenko, Alexey Veselov, Anton Shkatelov   +3 more
doaj   +1 more source

Cultivation of young-of-the-year carp with the use of chlorella (Chlorella (Beijerinck, 1890)) suspension

Ribogospodarsʹka Nauka Ukraïni, 2021
Purpose. Investigate ecological conditions and determine fish productivity of ponds when growing young-of-the-year carp using a suspension of chlorella. Methodology.
T. Hryhorenko, N. Savenko, N. Chuzhma, A. Bazaieva, Т. Bersan   +4 more
doaj   +1 more source

Hydrobiological service for observations and control of surface waters in the USSR [PDF]

, 1980
Technological progress, having reached in our time an unprecedented speed, is still increasing the rate of mineral extraction, industrial construction, and the mastering of new kinds of energy is growing.
Abakumov, V.A., Gasilina, N.K., Izrael, Yu. A.   +2 more
core  

BIODIVERSITY OF ZOOBENTHOS AT THE CA RIVER, VIETNAM [PDF]

Marine Research in Indonesia, 2008
A research on zoobenthos biodiversity was carried out from September 2004 to September 2006 at the Ca river (the length of Nghe An and Ha Tinh provinces) showed a species composition consisted of 154 species, 115 genera, 72 families, 32 orders and 5 phyla, including Mollusca, Annelida, Arthropoda, Echinodermata and Sipuncula.
openaire   +1 more source