scholarly journals Temporal Changes in the Harvest of the Brown Algae Macrocystis pyrifera (Giant Kelp) along the Mexican Pacific Coast

10.5772/18346 ◽  
2011 ◽  
Author(s):  
Margarita Casas-Valdez ◽  
Elisa Serviere-Zaragoza ◽  
Daniel Lluch-Bel
Keyword(s):  
Brown Algae ◽  
Pacific Coast ◽  
Temporal Changes ◽  
Macrocystis Pyrifera ◽  
Giant Kelp ◽  
Mexican Pacific

Key aspects of the iodine metabolism in brown algae: a brief critical review

Metallomics ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 756-764 ◽  
Author(s):  
Frithjof C. Küpper ◽  
Carl J. Carrano
Keyword(s):  
Critical Review ◽  
Brown Algae ◽  
Macrocystis Pyrifera ◽  
Giant Kelp ◽  
Iodine Metabolism ◽  
Key Aspects

Giant kelp (Macrocystis pyrifera, pictured here: in Port William, East Falkland, Feb. 2013) has a prolific halogen metabolism.

Mechanisms leading to recruitment inhibition of giant kelp Macrocystis pyrifera by an understory alga

2021 ◽  
Vol 657 ◽  
pp. 59-71
Author(s):  
BA Beckley ◽  
MS Edwards
Keyword(s):  
Field Experiments ◽  
Local Community ◽  
Kelp Forest ◽  
Macrocystis Pyrifera ◽  
Forest Recovery ◽  
Kelp Forests ◽  
Giant Kelp ◽  
Combined Effects ◽  
Life Stages ◽  
Survival And Growth

The forest-forming giant kelp Macrocystis pyrifera and the communities it supports have been decreasing across their native ranges in many parts of the world. The sudden removal of giant kelp canopies by storms increases space and light for the colonization by understory macroalgae, such as Desmarestia herbacea, which can inhibit M. pyrifera recovery and alter local community composition. Understanding the mechanisms by which algae such as D. herbacea interact with M. pyrifera can provide insight into patterns of kelp forest recovery following these disturbances and can aid in predicting future community structure. This study experimentally tested the independent and combined effects of two likely competitive mechanisms by which D. herbacea might inhibit recovery of M. pyrifera in the Point Loma kelp forest in San Diego, California (USA). Specifically, we conducted field experiments to study the individual and combined effects of shade and scour by D. herbacea on the survival of M. pyrifera microscopic life stages, and the recruitment, survival, and growth of its young sporophytes. Our results show that scour had the strongest negative effect on the survival of M. pyrifera microscopic life stages and recruitment, but shade and scour both adversely affected survival and growth of these sporophytes as they grew larger. Canopy-removing storms are increasing in frequency and intensity, and this change could facilitate the rise of understory species, like D. herbacea, which might alter community succession and recovery of kelp forests.

scholarly journals Green Synthesis of Copper Oxide Nanoparticles Using Protein Fractions from an Aqueous Extract of Brown Algae Macrocystis pyrifera

Processes ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 78
Author(s):  
Karla Araya-Castro ◽  
Tzu-Chiao Chao ◽  
Benjamín Durán-Vinet ◽  
Carla Cisternas ◽  
Gustavo Ciudad ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Copper Oxide ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Brown Algae ◽  
Copper Oxide Nanoparticles ◽  
Macrocystis Pyrifera ◽  
Protein Fractions ◽  
Oxide Nanoparticles ◽  
Cuo Nps

Amongst different living organisms studied as potential candidates for the green synthesis of copper nanoparticles, algal biomass is presented as a novel and easy-to-handle method. However, the role of specific biomolecules and their contribution as reductant and capping agents has not yet been described. This contribution reports a green synthesis method to obtain copper oxide nanoparticles (CuO-NPs) using separated protein fractions from an aqueous extract of brown algae Macrocystis pyrifera through size exclusion chromatography (HPLC-SEC). Proteins were detected by a UV/VIS diode array, time-based fraction collection was carried out, and each collected fraction was used to evaluate the synthesis of CuO-NPs. The characterization of CuO-NPs was evaluated by Dynamic Light Scattering (DLS), Z-potential, Fourier Transform Infrared (FTIR), Transmission Electron Microscope (TEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS) detector. Low Molecular Weight (LMW) and High Molecular Weight (HMW) protein fractions were able to synthesize spherical CuO-NPs. TEM images showed that the metallic core present in the observed samples ranged from 2 to 50 nm in diameter, with spherical nanostructures present in all containing protein samples. FTIR measurements showed functional groups from proteins having a pivotal role in the reduction and stabilization of the nanoparticles. The highly negative zeta potential average values from obtained nanoparticles suggest high stability, expanding the range of possible applications. This facile and novel protein-assisted method for the green synthesis of CuO-NPs may also provide a suitable tool to synthesize other nanoparticles that have different application areas.

Seawater desalination in Mexican Pacific coast by a new technology: use and perspectives

2012 ◽  
Vol 51 (1-3) ◽  
pp. 175-183
Author(s):  
V. Perez-Moreno ◽  
C.B. Bonilla-Suarez ◽  
M.E. Rodriguez-Muñoz
Keyword(s):  
Technology Use ◽  
Pacific Coast ◽  
New Technology ◽  
Seawater Desalination ◽  
Mexican Pacific

Spatial and seasonal variation in littoral fish assemblages of four estuarine lagoons on the Mexican Pacific coast

2021 ◽  
pp. 102000
Author(s):  
Yureidy Cabrera-Páez ◽  
Consuelo M. Aguilar-Betancourt ◽  
Gaspar González-Sansón ◽  
Angel Hinojosa-Larios
Keyword(s):  
Seasonal Variation ◽  
Pacific Coast ◽  
Fish Assemblages ◽  
Mexican Pacific ◽  
Littoral Fish ◽  
Spatial And Seasonal Variation

EFFECTS OF SELF-FERTILIZATION IN THE GIANT KELP, MACROCYSTIS PYRIFERA

Ecology ◽  
2004 ◽  
Vol 85 (12) ◽  
pp. 3267-3276 ◽  
Author(s):  
P. T. Raimondi ◽  
D. C. Reed ◽  
B. Gaylord ◽  
L. Washburn
Keyword(s):  
Macrocystis Pyrifera ◽  
Giant Kelp ◽  
Self Fertilization

scholarly journals Factors influencing urea use by giant kelp ( Macrocystis pyrifera , Phaeophyceae)

2020 ◽  
Author(s):  
Jason M. Smith ◽  
Gordon Blasco ◽  
Mark A. Brzezinski ◽  
John M. Melack ◽  
Daniel C. Reed ◽  
...  
Keyword(s):  
Macrocystis Pyrifera ◽  
Giant Kelp ◽  
Factors Influencing
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