Results 41 to 50 of about 7,485 (207)

Flexible C : N ratio enhances metabolism of large phytoplankton when resource supply is intermittent [PDF]

open access: yes, 2014
. Phytoplankton cell size influences particle sinking rate, food web interactions and biogeographical distributions. We present a model in which the uptake, storage and assimilation of nitrogen and carbon are explicitly resolved in different-sized ...
Blackford, J   +5 more
core   +1 more source

Sexual Reproduction of Centric Diatom Skeletonema costatum

open access: yesNIPPON SUISAN GAKKAISHI, 1967
The sexual reproduction and auxospore formation of Centrales had been misinterpreted for a long time. It was believed until recently that auxospore formation had no connection with sexual reproduction. More recently, however, STOSCH2) demonstrated oogamy clearly in Melosira varians for the first time, and since then STOSCH4-8) and GEITLER9, 10) studied
openaire   +2 more sources

Intercellular and extracellular amino acids of different bloom species in the Mediterranean Sea

open access: yesOceanological and Hydrobiological Studies, 2022
The presented laboratory experiment was designed to characterize the quantity and compositional variation of algal extracellular amino acids (AAs) that may represent an alternative nutrient source in a natural environment.
Hosny Shimaa   +2 more
doaj   +1 more source

Oxidative stress responses in two marine diatoms during acute n-butyl acrylate exposure and the toxicological evaluation with the IBRv2 index

open access: yesEcotoxicology and Environmental Safety, 2022
n-Butyl acrylate (nBA), a typical hazardous and noxious substance (HNS), is the largest-volume acrylate ester used to produce various types of polymers. With the increasing volume of nBA subject to maritime transportation, its accidental leakage poses a ...
Shuhao Du   +5 more
doaj   +1 more source

Factors influencing the emigration of juvenile Bonga from the Cross River estuary [PDF]

open access: yes, 2005
Studies were conducted to identify and quantify the proximate factors responsible for the emigration of juvenile bonga Ethmalosa fimbriata (Bowdich, 1825) from the Cross River estuary.
Akpan, E.R.   +2 more
core  

Role of extracellular carbonic anhydrase in the polar diatom Fragilariopsis cylindrus

open access: yesNew Phytologist, EarlyView.
Summary Diatoms are major primary producers in productive polar oceans, where cold temperatures and high CO2 solubility raise questions as to whether they rely on the CO2‐concentrating mechanism (CCM) to saturate photosynthesis. Knowledge of CCM function will help better predict the sensitivity of diatom primary production to warming and acidifying ...
Meng Li, Jodi N. Young
wiley   +1 more source

Mass culture of marine diatom Skeletonema costatum (Greville) Cleve collected from the Bay of Bengal [PDF]

open access: yes, 2007
The growth of Skeletonema costatum in two artificial nutrient media was studied using various culture vessels. Skeletonema costatum was collected from the Cox's Bazar coast around the Bay of Bengal. Different growths stages i.e.
Uddin, S.A., Zafar, M.
core  

Divergent responses of the diatom Thalassiosira weissflogii to ocean acidification during light and dark periods

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Given the limited understanding of discrepancies in responses of diatoms to ocean acidification (OA), we comparatively investigated the physiological and transcriptional performances of a diatom Thalassiosira weissflogii acclimated to OA (pHt drop of 0.35–0.41) between day and night periods.
Guang Gao   +3 more
wiley   +1 more source

Algicidal characteristics of novel algicidal compounds, cyclic lipopeptide surfactins from Bacillus tequilensis strain D8, in eliminating Heterosigma akashiwo blooms

open access: yesFrontiers in Microbiology, 2022
Heterosigma akashiwo blooms have caused severe damage to marine ecosystems, the aquaculture industry and human health worldwide. In this study, Bacillus tequilensis D8 isolated from an H. akashiwo bloom area was found to exert high algicidal activity via
Xueping Shao   +8 more
doaj   +1 more source

PENGARUH PEMBERIAN PAKAN ALAMI Tetraselmis chuii DAN Skeletonema costatum TERHADAP KANDUNGAN ASAM LEMAK OMEGA 6 (ASAM ARAKHIDONAT) PADA KERANG TOTOK Polymesoda erosa THE INFLUENCE OF NATURAL FOOD Tetraselmis chuii AND Skeletonema costatum ON THE PROFILE OF THE UNSATURATED FATTY ACID IN MARSH CLAM Polymesoda erosa [PDF]

open access: yes, 2007
ABSTRAK Pengetahuan tentang asupan nutrisi yang sesuai untuk kerang Totok Polymesoda erosa sangatlah penting yakni untuk meningkatkan kegunaan diet alga yang digunakan pada penangkaran agar sesuai dengan pola diet yang tepat.
Ambariyanto, Ambariyanto   +2 more
core  

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