Results 61 to 70 of about 214,108 (205)

Emergence of Algal Blooms: The Effects of Short-Term Variability in Water Quality on Phytoplankton Abundance, Diversity, and Community Composition in a Tidal Estuary

Microorganisms, 2014
Algal blooms are dynamic phenomena, often attributed to environmental parameters that vary on short timescales (e.g., hours to days). Phytoplankton monitoring programs are largely designed to examine long-term trends and interannual variability. In order
Todd A. Egerton, Ryan E. Morse, Harold G. Marshall, Margaret R. Mulholland   +3 more
doaj   +1 more source

Nitrogen and Iron Availability Drive Metabolic Remodeling and Natural Selection of Diverse Phytoplankton during Experimental Upwelling

mSystems, 2022
Nearly half of carbon fixation and primary production originates from marine phytoplankton, and much of it occurs in episodic blooms in upwelling regimes.
B. C. Kolody, S. R. Smith, L. Zeigler Allen, J. P. McCrow, A. Moustafa, D. Shi, B. M. Hopkinson, F. M. M. Morel, B. B. Ward, A. E. Allen   +9 more
doaj   +1 more source

Depositional processes of varved sediments from proglacial Lago Frías since 1800 CE (North Patagonian Andes, Argentina)

Boreas, EarlyView.
The glacierized Valle Frías in Northern Patagonia is one of the best‐studied valleys in South America and includes varved sediments from Lago Frías. We complement this lacustrine record with a high‐resolution documentation of varve counts and their composition.
Bernd Zolitschka, Philipp Böning, A. Catalina Gebhardt, M. Alicia Irurzun, Wojciech Tylmann, Christoph Vogt, Claudia S. G. Gogorza   +6 more
wiley   +1 more source

Bio-optical investigation of phytoplankton production in the southern Benguela ecosystem [PDF]

, 2011
This study aims to evaluate various existing models for the estimation of PP in the southern Benguela ecosystem, and to investigate the photophysiological responses of phytoplankton to changes in environmental ...
Lamont, Tarron
core   +1 more source

Taxonomic difference in marine bloom-forming phytoplanktonic species affects the dynamics of both bloom-responding prokaryotes and prokaryotic viruses

mSystems
The production of dissolved organic matter during phytoplankton blooms and consumption by heterotrophic prokaryotes promote marine carbon biogeochemical cycling.
Hiroaki Takebe, Kento Tominaga, Tatsuhiro Isozaki, Tetsuhiro Watanabe, Keigo Yamamoto, Ryoma Kamikawa, Takashi Yoshida   +6 more
doaj   +1 more source

Water temperature drives phytoplankton blooms in coastal waters.

PLoS ONE, 2019
Phytoplankton blooms are an important, widespread phenomenon in open oceans, coastal waters and freshwaters, supporting food webs and essential ecosystem services.
Thomas Trombetta, Francesca Vidussi, Sébastien Mas, David Parin, Monique Simier, Behzad Mostajir   +5 more
doaj   +1 more source

Mesoscale Oceanographic Processes Drive the Seasonal Abundance of the Seabob Shrimp Xiphopenaeus spp. on the Eastern Brazilian Shelf

Fisheries Oceanography, EarlyView.
ABSTRACT The seabob shrimp (Xiphopenaeus spp.) is a primary fishery resource in Brazil, with considerable economic and social importance along the coast. While environmental drivers of its life cycle are well‐documented for southeastern and southern populations, the factors modulating populations in the Eastern Brazilian Shelf remain poorly understood,
Leandro Bonesi Rabelo, Júlio Neves de Araújo, Agnaldo Silva Martins   +2 more
wiley   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

Distributions of particulate Heme b in the Atlantic and Southern Oceans-Implications for electron transport in phytoplankton [PDF]

, 2013
Concentrations of heme b, the iron-containing component of b-type hemoproteins, ranged from  500). High chl a:heme b ratios resulted from relative decreases in heme b, suggesting proteins such as cytochrome b6f, the core complex of photosystem II, and ...
Nielsdottir, Maria C., Micha J. A. Rijkenberg, Achterberg, Eric P., David J. Honey, Rijkenberg, Micha J.A., Eric P. Achterberg, Maria C. Nielsdottir, Honey, David J., Rijkenberg, Micha J. A., Gledhill, Martha, Martha Gledhill   +10 more
core   +1 more source

Larval Arctic cod (Boreogadus saida) exhibit stronger developmental and physiological responses to temperature than to elevated pCO2

Journal of Fish Biology, EarlyView.
Abstract High‐latitude ecosystems are simultaneously warming and acidifying under ongoing climate change. Arctic cod (Boreogadus saida) are a key species in the Arctic Ocean and have demonstrated sensitivity to ocean warming and acidification as adults and embryos, but their larval sensitivity to the combined stressors is unknown. In a laboratory multi‐
Emily Slesinger, Louise A. Copeman, Benjamin J. Laurel, Mary Beth R. Hicks, Paul J. Iseri, Michelle A. Stowell, Thomas P. Hurst   +6 more
wiley   +1 more source