Comparative Biochemical Study of the Rhizosphere of Rhizophora mangle and its Associated Species Cyperus sp. in the Ciénaga de Soledad (Colombia)

Paolini, Jorge; Sánchez-Arias, Luz Esther

doi:10.1007/978-1-4020-6720-4_8

Cited by 4 publications

(2 citation statements)

References 23 publications

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“…Las mediciones del agua intersticial se hicieron in situ. En cada localidad, se midió la temperatura, oxígeno disuelto y pH del agua intersticial introduciendo un tubo de PVC en el suelo y luego una sonda multiparamétrica (Sanchez-Arias, 2008). Se tomó una muestra del agua intersticial mediante el uso de una inyectadora de 10ml y una manguera de plástico que se introdujo en el tubo, con la muestra obtenida se midió in situ la salinidad utilizando refractómetro de campo.…”

Section: Caracterización De La Vegetaciónunclassified

Dinámica de las propiedades del suelo en bosques de Rhizophora mangle L. (Rhizophoraceae) en Isla de Margarita, Venezuela

Sánchez-Arias¹,

Paolini²,

Rodrı́guez³

2009

RBT

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Dynamics of soil properties in forests of Rhizophora mangle L. (Rhizophoraceae) in Margarita Island, Venezuela. Biochemical and microbiological properties of soils can provide information related to ecosystems environmental status. With the aim to determine the response of microbial biomass, and enzymatic and microbial activity in hypersaline (IS≥55ups) and saline (IS<55ups) mangrove soils exposed to interstitial salinities (IS) greater than 36ups, these properties were measured in mono-specific forests of Rhizophora mangle at Laguna de la Restinga National Park (Margarita Island, Venezuela). During three seasons (dry, wet and transition), a total of 120 soil samples were collected from ten (5 hypersaline and 5 saline) randomly-selected sites of 1000m 2 each. Four soil samples (400-500g) per plot were randomly collected with a corer at a depth of 10cm using a 1m 2 quadrat; each sample consisted in the combination of 8 sub-samples (50-60g ea.). Physical, chemical, enzymatic, biochemical and microbiological properties of soil samples were determined using standard laboratory protocols. The response of microbial biomass and microbial and enzymatic activity was analyzed taking into account spatial and climatic factors and interstitial salinity. Microbial biomass was linked to each locality conditions, and was not sensitive to seasonal or salinity differences. Microbial activity remained functionally active during the study period and presented variable responses. Dehydrogenase activity proved to be a good indicator for flooded and anoxic environments, and arginine ammonification resulted to be the more sensitive microbial activity to changes in salinity. Regarding enzyme activities, spatial variability was the most widespread response. We did not find a unique general pattern between enzymatic activities and spatio-temporal variation; and only the enzyme phosphatase was negatively affected by salinity. We conclude that microbial populations of mangrove soils and their activities have functional adaptations to flooded and highly-saline environments typical of a negative estuary, subjected to drastic changes due to weather and water dynamics. Future studies are needed to determine the relation between the "health" of mangrove forest and microbial populations, and their activities in mangroves soils.

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Section: Caracterización De La Vegetaciónunclassified

Dinámica de las propiedades del suelo en bosques de Rhizophora mangle L. (Rhizophoraceae) en Isla de Margarita, Venezuela

Sánchez-Arias¹,

Paolini²,

Rodrı́guez³

2009

RBT

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“…It provides valuable ecological and economic resources to accelerate sustainable livelihood like nursery grounds, breeding sites for birds, fish, crustaceans, shellfish, reptiles, and mammals with medicinal and aesthetic values (Helal Siddiqui & Islam 2019). It is also a renewable source of wood, accumulation sites for sediments, contaminants, carbon, and nutrients, while also protect against coastal erosion, cyclones, and tsunami (Paolini & Sánchez-Arias 2008;Danielsen et al 2005;Kathiresan & Rajendran 2005;Badola & Hussain 2005;Alongi 2002;Mazda et al 1997). Sundarbans mangrove forest is rich in both floral and faunal diversity compared to other mangroves of the world and it is a suitable place for collecting various minor forest products (Islam et al 2020) and developing tourism (Dey et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Seedling Diversity Considerably Changes Near Localities in Three Salinity Zones of Sundarbans Mangrove Forest, Bangladesh

Siddiqui¹,

Rahman²,

Pitol³

et al. 2021

J.Tropical Biodiversity Biotechnology

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The status of natural seedlings near localities in the Sundarbans Mangrove Forest was assessed through a stratified random sampling method to observe seedling composition and diversity, importance value index, family importance value, and species evenness. A total of 63 sample plots of 3,990 m2 area were surveyed in three natural and anthropogenic influenced salinity zones of Sundarbans. A total of 16,166 seedlings of 15 species under 12 families were found. Family Euphorbiaceae showed the highest (59.59%) family relative density and Rhizophoraceae presented the highest (20%) family relative diversity Index (FRDI). The maximum family importance value (FIV) showed by Euphorbiaceae (66.26) and the maximum importance value index (IVI) of species has been observed in Excoecaria agallocha (114.74). Excoecaria agallocha showed the highest relative density (59.6%) and relative abundance (39.87%) where the highest relative frequency (15.27%) was observed by Heritiera fomes. The mean stem density and species diversity index in the whole survey area was 2701 stem ha-1 and 0.0009 correspondingly. The Shannon-Wienner's diversity index was 1.52 where the maximum Shannon-Wienner's diversity index was 2.708. The Simpson's diversity index and Dominance of Simpson index were 0.38 and 0.62 with Simpson's reciprocal index 2.632. The Species evenness index, Menhinick’s, and Margalef's indices were 0.561, 0.118, and 1.445 respectively. The Species diversity index of the three salinity zones were 0.0017, 0.0029, and 0.0035 respectively. The Shannon-Wienner's diversity index of Low Salinity Zone (LSZ), Moderate Salinity Zone (MSZ), and Strong Salinity Zone (SSZ) were 0.887, 1.369, and 1.845 correspondingly where LSZ (0.632) showed the highest Simpson's diversity index follow ed by MSZ (0.394) and SSZ (0.21). The Species evenness index for LSZ, MSZ, and SSZ were 0.346, 0.505, and 0.742 where Menhinick’s Index were 0.148, 0.210, and 0.207 respectively. The analysis showed poor diversity indices and the area was dominated by few species with few families. The status is also reduced with increasing salinity.

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A Spatial Model Comparing Above- and Belowground Blue Carbon Stocks in Southwest Florida Mangroves and Salt Marshes

Radabaugh

Moyer

Chappel

et al. 2023

Estuaries and Coasts

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Comparative Biochemical Study of the Rhizosphere of Rhizophora mangle and its Associated Species Cyperus sp. in the Ciénaga de Soledad (Colombia)

Cited by 4 publications

References 23 publications

Dinámica de las propiedades del suelo en bosques de Rhizophora mangle L. (Rhizophoraceae) en Isla de Margarita, Venezuela

Dinámica de las propiedades del suelo en bosques de Rhizophora mangle L. (Rhizophoraceae) en Isla de Margarita, Venezuela

Seedling Diversity Considerably Changes Near Localities in Three Salinity Zones of Sundarbans Mangrove Forest, Bangladesh

A Spatial Model Comparing Above- and Belowground Blue Carbon Stocks in Southwest Florida Mangroves and Salt Marshes

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