Results 101 to 110 of about 39,729 (228)

Paleoceanographic and paleoclimatic reconstruction based on marine palynomorphs in the period 1811–1907 CE in the Magdalena Basin, Baja California Sur, Mexico

open access: yesCiencias Marinas, 2019
Biennial variations of marine palynomorph concentrations mirrored oceanographic conditions in the Magdalena Basin, Baja California Sur (Mexico), in the period from 1811 to 1907 (common era, CE), for which the sea surface temperature index (SSTI) showed ...
Laura Cristina López-Velázquez   +4 more
doaj   +1 more source

Harmful and toxic algae [PDF]

open access: yes, 2001
The chapter provides basic facts about harmful and toxic algae. It also discusses the conditions that stimulate their occurrence, different types of harmful and toxic algal blooms and their effects to fish and marine environment. The different strategies
Caturao, Romeo
core   +1 more source

Toarcian oceanic anoxic event: An assessment of global causes using belemnite C isotope records [PDF]

open access: yes, 2005
Two hypotheses have been proposed to explain simultaneous large negative excursions (up to 7% PeeDee belemnite) in bulk carbonate (delta(13)C(carb)) and organic carbon isotope records (delta(13)C(org)) from black shales marking the Toarcian oceanic ...
Bailey, TR   +5 more
core   +1 more source

Variability of the Deep‐Water Inputs From the Adriatic and Aegean Seas Over the Period of Sapropel S1 Deposition Based on Foraminiferal Nd Isotopes

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Deep‐water of the eastern Mediterranean basins mainly forms in the Adriatic Sea and episodically in the Aegean Sea. However, past and future variability under changing temperature and freshwater inputs remains unclear. We reconstruct seawater εNd from Northern Ionian Sea cores to trace intermediate‐ and deep‐water provenance during the ...
Guohui Gao   +8 more
wiley   +1 more source

GERMINACIÓN DE ESTADOS DE RESISTENCIA DE DIATOMEAS Y DINOFLAGELADOS EN SEDIMENTOS MARINOS DE DOS ÁREAS DE SURGENCIA DE CHILE GERMINATION OF RESTING STAGES OF DIATOMS AND DINOFLAGELLATES IN MARINE SEDIMENTS FROM TWO UPWELLING AREAS OF CHILE

open access: yesGayana: Botanica, 2009
Con el fin de evaluar la potencial germinación de los estados de resistencia de las diatomeas y dinofiagelados preservados en sedimentos superficiales, se cultivaron bajo condiciones de laboratorio sedimentos de las bahías de Mejillones (23° S) y ...
Gloria E Sánchez   +4 more
doaj  

Finding the Core-Genes of Chloroplasts

open access: yes, 2014
Due to the recent evolution of sequencing techniques, the number of available genomes is rising steadily, leading to the possibility to make large scale genomic comparison between sets of close species.
AlKindy, Bassam   +5 more
core   +3 more sources

Nitrogen uptake and the importance of internal nitrogen loading in Lake Balaton [PDF]

open access: yes, 2001
1. The importance of various forms of nitrogen to the nitrogen supply of phytoplankton has been investigated in the mesotrophic eastern and eutrophic western basin of Lake Balaton.<br /> 2.
Herodek, S.   +3 more
core   +1 more source

Evolutionary cell biology: Functional insight from “Endless forms most beautiful” [PDF]

open access: yes, 2015
In animal and fungal model organisms, the complexities of cell biology have been analyzed in exquisite detail and much is known about how these organisms function at the cellular level.
Dacks, Joel B.   +4 more
core   +1 more source

Report and preliminary results of RV METEOR Cruise M78/3. Sediment transport off Uruguay and Argentina: from the shelf to the deep sea ; 19.05.2009 – 06.07.2009, Montevideo (Uruguay) – Montevideo (Uruguay) [PDF]

open access: yes, 2012
The waters off Uruguay and Northern Argentina offer the possibility to study sediment transport processes from ‘source-to-sink’ in a relatively small area.
Krastel, Sebastian, Wefer, Gerold
core  

Integrating functional diversity, food web processes, and biogeochemical carbon fluxes into a conceptual approach for modeling the upper ocean in a high-CO2 world [PDF]

open access: yes, 2005
Marine food webs influence climate by channeling carbon below the permanent pycnocline, where it can be sequestered. Because most of the organic matter exported from the euphotic zone is remineralized within the "upper ocean" (i.e., the water column ...
Legendre, Louis, Rivkin, Richard B.
core   +1 more source

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