Aquatic vegetation of the Orinoco River Delta (Venezuela). An overview

Hydrobiologia ◽  
1996 ◽  
Vol 340 (1-3) ◽  
pp. 109-113 ◽  
Author(s):  
Giuseppe Colonnello Bertoli
Keyword(s):  
Aquatic Vegetation ◽  
River Delta ◽  
Orinoco River

Hemoglobin variants, hematological parameters andβ-globin gene cluster haplotypes in an isolated Amerindian group from the Orinoco River Delta

2008 ◽  
Vol 35 (2) ◽  
pp. 250-255 ◽  
Author(s):  
Anabel Arends ◽  
Marycarmen Chacín ◽  
Martha Bravo-Urquiola ◽  
Tibisay Arends De O ◽  
Maritza Álvarez ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Hematological Parameters ◽  
Globin Gene ◽  
River Delta ◽  
Orinoco River ◽  
Globin Gene Cluster ◽  
Hemoglobin Variants

Cover Fire emissions from the Orinoco river delta

1997 ◽  
Vol 18 (5) ◽  
pp. 1007-1008
Author(s):  
C. Balladares ◽  
R. Lazo ◽  
A. M. Martinez
Keyword(s):  
River Delta ◽  
Fire Emissions ◽  
Orinoco River

scholarly journals The Effect of Submerged Aquatic Vegetation Expansion on a Declining Turbidity Trend in the Sacramento-San Joaquin River Delta

2015 ◽  
Vol 39 (4) ◽  
pp. 1100-1112 ◽  
Author(s):  
Erin Lee Hestir ◽  
David H. Schoellhamer ◽  
Jonathan Greenberg ◽  
Tara Morgan-King ◽  
Susan L. Ustin
Keyword(s):  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
River Delta ◽  
San Joaquin River ◽  
Vegetation Expansion

scholarly journals Aquatic Vegetation Loss and Its Implication on Climate Regulation in a Protected Freshwater Wetland of Po River Delta Park (Italy)

Water ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 117
Author(s):  
Mattias Gaglio ◽  
Mariano Bresciani ◽  
Nicola Ghirardi ◽  
Alexandra Nicoleta Muresan ◽  
Mattia Lanzoni ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Aquatic Vegetation ◽  
Ecosystem Processes ◽  
River Delta ◽  
Freshwater Wetland ◽  
Total Biomass ◽  
Po River ◽  
Breakdown Rates ◽  
Vegetation Loss ◽  
And Storage

Aquatic vegetation loss caused substantial decrease of ecosystem processes and services during the last decades, particularly for the capacity of these ecosystems to sequester and store carbon from the atmosphere. This study investigated the extent of aquatic emergent vegetation loss for the period 1985–2018 and the consequent effects on carbon sequestration and storage capacity of Valle Santa wetland, a protected freshwater wetland dominated by Phragmites australis located in the Po river delta Park (Northern Italy), as a function of primary productivity and biomass decomposition, assessed by means of satellite images and experimental measures. The results showed an extended loss of aquatic vegetated habitats during the considered period, with 1989 being the year with higher productivity. The mean breakdown rates of P. australis were 0.00532 d−1 and 0.00228 d−1 for leaf and stem carbon content, respectively, leading to a predicted annual decomposition of 64.6% of the total biomass carbon. For 2018 the carbon sequestration capacity was estimated equal to 0.249 kg C m−2 yr−1, while the carbon storage of the whole wetland was 1.75 × 103 t C (0.70 kg C m−2). Nonetheless, despite the protection efforts over time, the vegetation loss occurred during the last decades significantly decreased carbon sequestration and storage by 51.6%, when comparing 2018 and 1989. No statistically significant effects were found for water descriptors. This study demonstrated that P. australis-dominated wetlands support important ecosystem processes and should be regarded as an important carbon sink under an ecosystem services perspective, with the aim to maximize their capacity to mitigate climate change.

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