Impact of the Jamapa River Basin on the Gulf of Mexico

Castañeda-Chávez, María del Refugio; Lango-Reynoso, Fabiola

doi:10.5772/intechopen.97021

Cited by 2 publications

(3 citation statements)

References 22 publications

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“…The quality of the effluents and their final discharge site are crucial issues to preserve the health of ecosystems. Coinciding with the above, Castañeda-Chávez and Lango-Reynoso [31] and Castañeda-Chávez et al [52] indicated that there is a diversity of chemical and microbiological compounds that the Jamapa river basin receives; Likewise, they re-ported that these discharges come from different sources of contamination such as industry, waste, sewage, agricultural and urban runoff, and the accumulation of sediments.…”

Section: Regulations On the Discharge Of Effluent Water In Mexicomentioning

confidence: 90%

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Removal of Pathogenic Bacteria in a Horizontally Fed Subsurface Constructed Wetland Hybrid System

Montero-Martínez,

del Refugio Castañeda-Chávez,

Lango-Reynoso

et al. 2023

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The management of effluents and their treatment is a fundamental issue in water management, the removal of different types of contaminants is another relevant issue for public health and the environment. Bacteria are one of the main types of contaminants in untreated water discharged to receiving bodies. The objective of this research was to evaluate the removal efficiency of pathogenic bacteria in a horizontal feeding subsurface artificial wetland that treats wastewater originated from the Boca de Río Technological Institute, Veracruz, Mexico. A hybrid system composed of seven cells with three types of substrates and ornamental type vegetation was designed; the indicators evaluated were the concentration of total and fecal coliforms and the efficiency of bacterial removal in the stages of the system. The artificial wetland system demonstrated a significant reduction (p < 0.05) between the different cells of the system. The values of pathogenic bacteria removal obtained in the wetland were higher than 99% in the cells of the system and times. In conclusion, it was identified that the interaction of the components of this system and its operation under the climatic seasons of the site influenced the removal efficiency of pathogenic bacteria, allowing optimal removal efficiency.

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Section: Regulations On the Discharge Of Effluent Water In Mexicomentioning

confidence: 90%

“…The lower portion of the basin is located immediately to the discharge zone of this artificial system. The basin area receives the contribution of important effluents, but is also strongly impacted by municipal discharges from the cities of Boca del Río-Veracruz and Medellín [29][30][31][32].…”

Section: Study Areamentioning

confidence: 99%

Removal of Pathogenic Bacteria in a Horizontally Fed Subsurface Constructed Wetland Hybrid System

Montero-Martínez,

del Refugio Castañeda-Chávez,

Lango-Reynoso

et al. 2023

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“…This fish sizecoral coverage relationship could be supported by the positioning and discharge of the Jamapa, Papalopan and La Antigua rivers, where the difference of salinity and sedimentation between the shallow and deeper areas enhance the food availability for demersal species with smaller sizes and higher population densities. These discharge patterns may not influence deeper reefs (Peŕez-España et al, 2015;Castañeda-Chavez and Lango-Reynoso, 2021) as the coral coverage would be less affected (Fabricius, 2005).…”

Section: Figurementioning

confidence: 99%

Functional diversity in reef fish assemblages in the Parque Nacional Sistema Arrecifal Veracruzano, Mexico: Temporal and spatial changes

Russet-Rodríguez

Pérez-España²,

Payán-Alcacio³

et al. 2023

Front. Mar. Sci.

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The Parque Nacional Sistema Arrecifal Veracruzano (hereafter called PNSAV) is the largest coral reef extension in the central region of the Gulf of Mexico. These reefs are unique since they have developed near a coastal environment that is directly influenced by the discharges of Veracruz city, the rivers located on the continental shelf, and the port of Veracruz. This study evaluates the functional diversity, in terms of richness, evenness, and divergence, of the PNSAV fish community. We were interested in quantifying any similarities or differences in functional diversity metrics when one examines reef fish assemblages on a single reef or joint reef subsystems; thus, is there a difference based on scale? A total of 297 fish assemblages were observed in seven PNSAV reefs between May 2006 and April 2021. Significant differences were found in the Functional Richness of the assemblages between subsystems, years, and reef-depth interaction, but none were found among the reefs, or between seascapes. The Functional Diversity presented annual mean values between 0.83 (sd= 0.085) and 0.90 (sd= 0.068) and did not show statistical differences between years, seascape, or reefs. In contrast, statistical differences were found between subsystems, and depth level and the seascape-depth interaction. The annual mean Functional Evenness values ranged between 0.34 (sd= 0.128) and 0.44 (sd= 0.060), and significant differences were detected between years, reef, and reefs-depth level interaction, but no difference were found between subsystems. Reef-fish diversity was greater within the north coral reef subsystem than the southern of the PNSAV. There were no overall tendencies for increased functional diversity throughout the time during this study.

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Impact of the Jamapa River Basin on the Gulf of Mexico

Cited by 2 publications

References 22 publications

Removal of Pathogenic Bacteria in a Horizontally Fed Subsurface Constructed Wetland Hybrid System

Removal of Pathogenic Bacteria in a Horizontally Fed Subsurface Constructed Wetland Hybrid System

Functional diversity in reef fish assemblages in the Parque Nacional Sistema Arrecifal Veracruzano, Mexico: Temporal and spatial changes

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