Results 31 to 40 of about 9,561 (238)

Evaluation of the Conditions of Mamberamo River Water with Biomass and Phytoplankton Community Approach

open access: yesJurnal Ilmiah Perikanan dan Kelautan, 2021
Highlight • The highest composition was Bacillariophyceae class and lowest was Cyanophyceae. • Phytoplankton community abundance in waters is tightly related with nutrient content such as phosphate, nitrate, silicate, and other nutrients.
Mirna Dwirastina, Dwi Atminarso
doaj   +1 more source

Movement in the Cyanophyceae [PDF]

open access: yesThe Quarterly Review of Biology, 1933
The effect of pH upon the velocity of translatory movement of Oscillatoria formosa Bory in inorganic culture solutions was determined. Unhindered movement occurred in the range of about pH 6.4 to 9.5. Above and below these limits inhibition was marked.
openaire   +1 more source

Recent occurrence of Cylindrospermopsis raciborskii, in Waikato lakes of New Zealand. [PDF]

open access: yes, 2003
Cylindrospermopsis raciborskii is a toxin-producing species of cyanobacteria that in autumn 2003 was recorded for the first time in three shallow (max. depth ≤5 m) Waikato lakes and a hydro-electric dam on the Waikato River, New Zealand.
Antenucci J. P.   +8 more
core   +2 more sources

Nostocophyceae (Cyanophyceae) da Lagoa Bonita, Distrito Federal, Brasil: parte 1 Lagoa Bonita's Nostocophyceae, Distrito Federal, Brazil, part 1

open access: yesActa Botânica Brasílica, 1988
A Lagoa Bonita situa-se na região nordeste do Distrito Federal, com um espelho d'água de aproximadamente 120ha. Do estudo pormenorizado de 101 amostras coletadas durante 13 meses, de janeiro de 1984 a janeiro de 1985, foram identificadas 21 espécies de ...
Irani F.P Campos, Pedro A.C Senna
doaj   +1 more source

The Occurrences of Harmful Algal Blooms (HABs) Species and Trophic Status Update in Kedung Ombo Reservoir

open access: yesJurnal Ilmiah Perikanan dan Kelautan
Graphical Abstract   Highlight Research Six harmful algal species were identified, with Aphanizomenon sp. being the most dominant, primarily from Cyanophyceae (blue-green algae).
Arif Rahman, Haeruddin, Kukuh Prakoso
doaj   +1 more source

Nota Preliminar sobre Algas de Nieve “Snow Algae” en Punta Fort Williams (Isla Greenwich – Antártica), enero 2004

open access: yesRevista Tecnológica, 2013
Se describen breves notas científicas de las algas de hielo que habitan sobre la nieve, formando manchas detonalidades color rojizo y verde en la Península Fort Williams de la Isla Greenwich (Islas Shetland del Sur-Antártica) a fines de enero del 2004 ...
Gladys Torres, Carmen Palacios
doaj   +4 more sources

Qualitative and Quantitative study of Epipelic algae in Tigris River within Baghdad City, Iraq

open access: yesمجلة بغداد للعلوم, 2014
The present study conducted to study epipelic algae in the Tigris River within Baghdad city for one year from September 2011 to August 2012 due to the importance role of benthic algae in lotic ecosystems. Five sites have been chosen along the river.
Baghdad Science Journal
doaj   +1 more source

Suitability of Phytosterols Alongside Fatty Acids as Chemotaxonomic Biomarkers for Phytoplankton [PDF]

open access: yes, 2016
The composition and abundance of phytoplankton is an important factor defining ecological status of marine and freshwater ecosystems. Chemotaxonomic markers (e.g., pigments and fatty acids) are needed for monitoring changes in a phytoplankton community ...
Hiltunen, Minna   +3 more
core   +1 more source

Struktur Komunitas Alga Perifiton Sungai dalam Gua Batu Asahan di Sumpur Kudus Kabupaten Sijunjung Sumatera Barat

open access: yesJurnal Biologi Universitas Andalas, 2019
The cave ecosystem has a unique environment because it receives minimal sunlight and does not even get sunlight at all. Dark conditions in the cave will affect producers such as periphyton algae that live in rivers in caves that need sunlight for ...
Izmiarti Izmiarti
doaj   +1 more source

Effects of different types of fertilizers on plankton productivity in earthen ponds [PDF]

open access: yes, 2003
Three fertilizer types (NPK, Super-phosphate and cow dung) were applied at two levels (Low, 0.3 kg/25m super(2)/2weeks and High, 0.7kg/25 m super(2)/2weeks) to 12 ponds with two ponds serving as control.
Kolo, R.J., Mani, I.A., Musa, H.A.
core  

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