scholarly journals Spatial variation in the structural parameters of Cymodocea nodosa seagrass meadows in the Canary Islands: a multiscaled approach

2005 ◽  
Vol 48 (2) ◽  
Author(s):  
Carmen Barberá ◽  
Fernando Tuya ◽  
Arturo Boyra ◽  
Pablo Sanchez-Jerez ◽  
Ivan Blanch ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Canary Islands ◽  
Structural Parameters ◽  
Cymodocea Nodosa ◽  
Seagrass Meadows

Relation between the type of wave exposure and seagrass losses (Cymodocea nodosa) in the south of Gran Canaria (Canary Islands — Spain)

2014 ◽  
Vol 43 (1) ◽  
Author(s):  
Eduardo Portillo
Keyword(s):  
Canary Islands ◽  
Qualitative Evaluation ◽  
Cymodocea Nodosa ◽  
The South ◽  
Frictional Drag ◽  
Winter Storms ◽  
Gran Canaria ◽  
Seagrass Meadows ◽  
The North ◽  
Storm Waves

AbstractEffects of different types of wave events on Cymodocea nodosa seagrass meadows were observed and investigated by quantitative and qualitative evaluation of material washed ashore a few days after the events. The studied seagrass meadows are located on the south coast of the island of Gran Canaria (Canary Islands — Spain) and they are protected from frequent swells arriving from the North Atlantic. However, sporadic phenomena associated with winter storms occasionally hit this coastline, causing the loss of entire plants (fresh leaves with rhizomes and roots attached). An unusual type of southern swells generated in the South Atlantic also reaches the Islands in spring and summer. A clear relation was observed between the wave events (southern swells and storm waves) and the material cast ashore over the following days, with differences in composition (fresh vs. decaying leaves) depending on the type of event. After southern swells, detached portions of C. nodosa consisted mostly of decaying leaves shed after senescence. These old swells cause frictional drag with moderate oscillations over a wider range at greater depths, removing only decaying leaves from the seagrass meadows and favoring the natural clean-up process.

Three new interstitial dorvilleids (Annelida: Polychaeta) from the Cymodocea nodosa meadows of the Canary Islands

Hydrobiologia ◽  
2003 ◽  
Vol 496 (1-3) ◽  
pp. 27-34 ◽  
Author(s):  
María del Carmen Brito ◽  
Jorge Núñez
Keyword(s):  
Canary Islands ◽  
Cymodocea Nodosa

scholarly journals Direct and indirect effects of climate change on Cymodocea nodosa in the Canary Islands

2019 ◽  
Vol 6 ◽  
Author(s):  
Adriana Rodríguez ◽  
Iago Peaguda ◽  
Sergio Moreno-Borges ◽  
Alberto Brito
Keyword(s):  
Climate Change ◽  
Canary Islands ◽  
Indirect Effects ◽  
Cymodocea Nodosa ◽  
Direct And Indirect Effects

scholarly journals Genetic diversity of a clonal angiosperm near its range limit: the case of Cymodocea nodosa at the Canary Islands

2006 ◽  
Vol 309 ◽  
pp. 117-129 ◽  
Author(s):  
F Alberto ◽  
S Arnaud-Haond ◽  
CM Duarte ◽  
EA Serrão
Keyword(s):  
Genetic Diversity ◽  
Canary Islands ◽  
Cymodocea Nodosa ◽  
Range Limit

Restoration of Cymodocea nodosa seagrass meadows: efficiency and ecological implications

2020 ◽  
Author(s):  
Zaira Da Ros ◽  
Cinzia Corinaldesi ◽  
Antonio Dell'Anno ◽  
Cristina Gambi ◽  
Fabrizio Torsani ◽  
...  
Keyword(s):  
Cymodocea Nodosa ◽  
Seagrass Meadows ◽  
Ecological Implications

scholarly journals Photosynthetic activity buffers ocean acidification in seagrass meadows

2014 ◽  
Vol 11 (2) ◽  
pp. 333-346 ◽  
Author(s):  
I. E. Hendriks ◽  
Y. S. Olsen ◽  
L. Ramajo ◽  
L. Basso ◽  
A. Steckbauer ◽  
...  
Keyword(s):  
Structural Parameters ◽  
Vertical Mixing ◽  
Posidonia Oceanica ◽  
Shoot Density ◽  
Positive Trend ◽  
Coastal Zones ◽  
Carbonate System ◽  
Saturation State ◽  
Seagrass Meadows ◽  
Density And Biomass

Abstract. Macrophytes growing in shallow coastal zones characterised by intense metabolic activity have the capacity to modify pH within their canopy and beyond. We observed diel pH changes in shallow (5–12 m) seagrass (Posidonia oceanica) meadows spanning 0.06 pH units in September to 0.24 units in June. The carbonate system (pH, DIC, and aragonite saturation state (ΩAr)) and O2 within the meadows displayed strong diel variability driven by primary productivity, and changes in chemistry were related to structural parameters of the meadow, in particular, the leaf surface area available for photosynthesis (LAI). LAI was positively correlated to mean, max and range pHNBS and max and range ΩAr. In June, vertical mixing (as Turbulent Kinetic Energy) influenced max and min ΩAr, while in September there was no effect of hydrodynamics on the carbonate system within the canopy. Max and range ΩAr within the meadow showed a positive trend with the calcium carbonate load of the leaves, pointing to a possible link between structural parameters, ΩAr and carbonate deposition. Calcifying organisms, e.g. epiphytes with carbonate skeletons, may benefit from the modification of the carbonate system by the meadow. There is, however, concern for the ability of seagrasses to provide modifications of similar importance in the future. The predicted decline of seagrass meadows may alter the scope for alteration of pH within a seagrass meadow and in the water column above the meadow, particularly if shoot density and biomass decline, on which LAI is based. Organisms associated with seagrass communities may therefore suffer from the loss of pH buffering capacity in degraded meadows.

Macroecological analysis of the fish fauna inhabiting Cymodocea nodosa seagrass meadows

2015 ◽  
Vol 87 (4) ◽  
pp. 1000-1018 ◽  
Author(s):  
F. Espino ◽  
A. Brito ◽  
R. Haroun ◽  
F. Tuya
Keyword(s):  
Fish Fauna ◽  
Cymodocea Nodosa ◽  
Seagrass Meadows
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