Water Quality and Mangrove-Derived Tannins in Four Coastal Lagoons from the Gulf of Mexico with Variable Hydrologic Dynamics

Coastal lagoons are one of the most threatened ecosystems in the world, because of population growth, habitat destruction, pollution, wastewater, overexploitation and invasive species which are the main causes of their degradation. The objective of this paper was to evaluate the water quality behavior in a stressed coastal lagoon in Cartagena, Colombian Caribbean. Environmental data was analyzed using hypothesis testing, confidence intervals, and also Principal components analysis (PCA). The study was focused on water parameters such as dissolved oxygen (DO), biochemical oxygen demand (BOD5), chemical oxygen demand (COD), salinity, pH, total dissolved solids, total coliforms (TC), Fecal coliforms (FC), ammonium (NH4+) and total phosphorus (TP). The analysis was conducted in line with the Colombian national water standard. Results showed that BOD5, COD, phosphorus, and coliforms are out of the limits for these variables in Colombia and are reaching levels that may be a threat to human health. Principal components analysis detected five components that explained 79.4% of the variance of data and showed that anthropogenic and temporal factors might be affecting the variation of the parameters.

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Range expansion of two box jellyfish (Cnidaria, Cubozoa) in southern Gulf of Mexico

Check List ◽

10.15560/15.3.405 ◽

2019 ◽

Vol 15 (3) ◽

pp. 405-410 ◽

Cited By ~ 1

Author(s):

José María Ahuatzin Hernández ◽

Andrea del Jesus Couoh-Concha ◽

Lucio Loman-Ramos ◽

Lorena Violeta Leon-Deniz

Keyword(s):

Gulf Of Mexico ◽

Range Expansion ◽

New Records ◽

Coastal Lagoons ◽

Box Jellyfish ◽

Southern Gulf Of Mexico

We report range extensions of Chiropsalmus quadrumanus (Müller, 1859) and Tripedalia cystophora Conant, 1897 to 2 coastal lagoons in the southern Gulf of Mexico. These new records are the first for these species in Yucatán and Mexico.

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Water Quality Effects on Fish Larvae in a Tropical Coastal Lagoon of the Gulf of Mexico

Estuaries of the World - Fisheries Management of Mexican and Central American Estuaries ◽

10.1007/978-94-017-8917-2_2 ◽

2014 ◽

pp. 31-38

Author(s):

Guadalupe de la Lanza-Espino ◽

Salvador Hernández-Pulido ◽

Norma Sánchez-Santillán ◽

José Luis Carbajal-Pérez

Keyword(s):

Water Quality ◽

Gulf Of Mexico ◽

Coastal Lagoon ◽

Fish Larvae ◽

Tropical Coastal Lagoon

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Comment on “Legacy nitrogen may prevent achievement of water quality goals in the Gulf of Mexico”

Science ◽

10.1126/science.aau8401 ◽

2019 ◽

Vol 365 (6455) ◽

pp. eaau8401 ◽

Cited By ~ 4

Author(s):

Tristan C. Ballard ◽

Anna M. Michalak ◽

Gregory F. McIsaac ◽

Nancy N. Rabalais ◽

R. Eugene Turner

Keyword(s):

Water Quality ◽

Gulf Of Mexico ◽

Time Scales ◽

Legacy Effects ◽

Nitrogen Reduction ◽

Modeling Approach

Van Meter et al. (Reports, 27 April 2018, p. 427) warn that achieving nitrogen reduction goals in the Gulf of Mexico will take decades as a result of legacy nitrogen effects. We discuss limitations of the modeling approach and demonstrate that legacy effects ranging from a few years to decades are equally consistent with observations. The presented time scales for system recovery are therefore highly uncertain.

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