Results 51 to 60 of about 183,209 (143)

Boron isotopes as a proxy for pH in siliceous and calcareous marine algae

open access: yes, 2017
Rising CO2 in the atmosphere has directly led to a reduction in surface ocean pH -a process known as ocean acidification. There is a need to understand past climates in terms of ocean pH change in order to be able to relate these to the current effects of ...
Donald, Hannah, Katie
core   +1 more source

Bioactive effect of cyanobacteria and calcareous algae mixture in bioassays and on potato growth and yield

open access: yesPesquisa Agropecuária Tropical
The growth-promoting effect of the micronized calcareous algae Lithothamnion sp. is related to the presence of humic acid and its bioactive auxin-like effect, characteristic of humic substances, whereas the plant growth-promoting effect of the microalgae
Juliana de Oliveira Amatussi   +4 more
doaj   +1 more source

Census Estimates of Algal and Epiphytic Carbonate Production Highlight Tropical Seagrass Meadows as Sediment Production Hotspots

open access: yesFrontiers in Marine Science, 2019
Tropical shelf, platform and reef-lagoon systems are dominated by calcium carbonate (CaCO3) sediments. However, data on habitat-specific CaCO3 sediment production rates by different sediment producing taxa are sparse, limiting understanding of where and ...
Chris T. Perry   +3 more
doaj   +1 more source

Two New Species of Calcareous Algae (Dasycladaceae) from the Upper Dogger of Southern Dalmatia (Croatia) [PDF]

open access: yes, 1992
Two new species of calcareous algae (Dasycladaceae) are described.One - Salpingoporella croatica n. sp. -is characterized by a clyindrical skeleton and undivided, phloiophorous to partly vesiculiferous rarnifications, arranged in whorls.
Sokač, Branko
core   +1 more source

Permian Calcareous Algae Found in the Matsumae Group, Matsumae Peninsula, Southwestern Hokkaido [PDF]

open access: yes, 1978
Permian calcareous algae Gymnocodium bellerophontis and Mizzia velebitana were found in an algal limestone bed intercalated in the Matsumae Group exposed at the upper stream of Komatagawa River, about 5 km northwest of Fukushima town, Southwestern ...
Minoura, Nachio, Kato, Makoto
core  

Marine benthic plants of Western Australia’s shelf-edge atolls [PDF]

open access: yes, 2009
One hundred and twenty-one species of marine algae, seagrasses and cyanobacteria are reported from the offshore atolls of northwestern Western Australia (the Rowley Shoals, Scott Reef and Seringapatam Reef).
Townsend, Roberta A   +7 more
core  

algae

open access: yes, 2014
algae and ...
Oscar Acosta (579573)
core   +1 more source

Coralline algal structure is more sensitive to rate, rather than the magnitude, of ocean acidification [PDF]

open access: yes, 2013
Marine pCO2 enrichment via ocean acidification (OA), upwelling and release from carbon capture and storage (CCS) facilities is projected to have devastating impacts on marine biomineralisers and the services they provide. However, empirical studies using
Findlay, HS   +32 more
core   +1 more source

Late Cenomanian fossil association from Morelos, Mexico—stratigraphic implications

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
The fossil content of a limestone succession of the Cuautla Formation, from the central part of the State of Morelos, indicates a late Cenomanian age.
Ulises Hernández-Romano   +2 more
doaj  

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