Results 21 to 30 of about 969 (173)

Estructura de una comunidad de Halimeda tuna (Chlorophyceae, Caulerpales) en aguas profundas del Mediterráneo noroccidental

open access: yesCollectanea Botanica, 1991
Se describe una comunidad dominada por Halimeda tuna y Mesophyllum lichenoides en los fondos rocosos profundos del Mediterráneo Noroccidental. Dichas especies coexisten con Udotea petiolata, diversas especies de Peyssonnelia y Lithophyllum expansum, como
Enric Ballesteros
doaj   +1 more source

EVALUATION OF ANTIOXIDANT ACTIVITIES OF SOME ABUNDANT MARINE MACROALGAE, EGYPT [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 2023
This study investigated the antioxidant scavenging activity of nine marine macroalgae extracts collected from different Egyptian coasts. The extracts were tested using the DPPH assay to exhibit various antioxidant activities.
H. Ahmed   +3 more
doaj   +1 more source

Effectivenes of Halimeda sp. as a marine bioremediation agent for heavy metal (lead and cobalt) contamination [PDF]

open access: yesBIO Web of Conferences
Industrial development poses a serious threat to marine ecosystems and biota in Indonesia. Waste released into the environment includes inorganic substances such as heavy metals Lead (Pb) and Cobalt (Co). An effort to restore contaminated environments is
Marsitta Hatiuron Sitompul Lisbet   +2 more
doaj   +1 more source

Checklist of Macroalgae in Waisai Coast, Raja Ampat

open access: yesBiology, Medicine & Natural Product Chemistry, 2016
Macroalgae are very abundant organisms in Indonesian coastal zone. They comprise 8.6% of the total marine organisms.The aim of the research was to identify macroalgae in Waisai Coast Raja Ampat.
Retno Suryandari, Widodo Widodo
doaj   +1 more source

New findings of halimedacean algae from the Late Triassic Dachstein Limestone of the Northern Calcareous Alps (Hochschwab Area, Styria, Austria)

open access: yesGeologia Croatica, 2008
Two taxa of halimedacean algae are recorded from the Upper Triassic lagoonal Dachstein Limestone (Norian-Rhaetian) of the Hochschwab area in the south-eastern part of the Northern Calcareous Alps of Austria.
Felix Schlagintweit, Wolfgang Pavlik
doaj   +1 more source

Growth rate and calcium carbonate accumulation of Halimeda macrolobaDecaisne (Chlorophyta: Halimedaceae) in Thai waters [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2014
Halimeda macroloba Decaisne can utilize the CO2 used for carbon fixation in photosynthesis and use bicarbonate as the main carbon source for calcification.
Jaruwan Mayakun   +2 more
doaj  

Molecular systematics, historical ecology, and phylogeography of Halimeda (Bryopsidales) [PDF]

open access: yesMolecular Phylogenetics and Evolution, 2002
Halimeda (Bryopsidales), a genus of calcified, segmented green seaweeds, abounds in reefs and lagoons throughout the tropics. To investigate phylogenetic, phylogeographic, and historic ecological relationships of the genus, the nuclear rDNA including the SSU and both ITS regions were sequenced.
Kooistra, Wiebe H. C. F.   +2 more
openaire   +2 more sources

IDENTIFICATION OF GREEN ALGAE (CHLOROPHYTA) GENUS HALIMEDA IN THE WATERS OF MABA DISTRICT, EAST HALMAHERA

open access: yesJurnal Ilmu Kelautan Spermonde
Halimeda is a genus of calcified alga that inhabits tropical aquatic environments. The presences of Halimeda is essential for waters around mining sites, such as the waters of Maba District, wich is the center of mining in East Halmahera. As a calcareous
Wilya Ananda   +3 more
doaj   +1 more source

New constraints on the postglacial shallow-water carbonate accumulation in the Great Barrier Reef

open access: yesScientific Reports, 2022
More accurate global volumetric estimations of shallow-water reef deposits are needed to better inform climate and carbon cycle models. Using recently acquired datasets and International Ocean Discovery Program (IODP) Expedition 325 cores, we calculated ...
Gustavo Hinestrosa   +2 more
doaj   +1 more source

Registro de estructuras de reproducción de tres especies del Orden Bryopsidales (Chlorophyta, Ulvophyceae) del Caribe mexicano

open access: yesActa Botanica Mexicana, 2019
Antecedentes y Objetivos: A pesar de la importancia ecológica de las especies del Orden Bryopsidales en los ecosistemas tropicales marinos, se conoce poco sobre los aspectos reproductivos de las especies que se desarrollan en el Caribe mexicano.
Julio Adulfo Acosta-Calderon   +3 more
doaj   +1 more source

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