Long term state of coastal lagoons in Veracruz, Mexico: Effects of land use changes in watersheds on seagrasses habitats

Rivera-Guzmán, Nadia E.; Moreno‐Casasola, Patricia; Ibarra-Obando, Silvia E.; Sosa, Vinicio J.; Herrera-Silveira, Jorge A.

doi:10.1016/j.ocecoaman.2013.10.007

Cited by 26 publications

(42 citation statements)

References 17 publications

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“…; Rivera‐Guzmán et al. ). We hypothesized that sections of the lagoon surrounded by conservation lands have greater state‐specific seagrass detection probabilities, greater probabilities of a transition from no seagrass to seagrass, and lower probabilities of a transition (hereafter transition probability) from seagrass to no seagrass than sections surrounded by urban lands.…”

Section: Methodsmentioning

confidence: 98%

Effects of surrounding land use and water depth on seagrass dynamics relative to a catastrophic algal bloom

Breininger

Hall

2016

Conservation Biology

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Seagrasses are the foundation of many coastal ecosystems and are in global decline because of anthropogenic impacts. For the Indian River Lagoon (Florida, U.S.A.), we developed competing multistate statistical models to quantify how environmental factors (surrounding land use, water depth, and time [year]) influenced the variability of seagrass state dynamics from 2003 to 2014 while accounting for time-specific detection probabilities that quantified our ability to determine seagrass state at particular locations and times. We classified seagrass states (presence or absence) at 764 points with geographic information system maps for years when seagrass maps were available and with aerial photographs when seagrass maps were not available. We used 4 categories (all conservation, mostly conservation, mostly urban, urban) to describe surrounding land use within sections of lagoonal waters, usually demarcated by land features that constricted these waters. The best models predicted that surrounding land use, depth, and year would affect transition and detection probabilities. Sections of the lagoon bordered by urban areas had the least stable seagrass beds and lowest detection probabilities, especially after a catastrophic seagrass die-off linked to an algal bloom. Sections of the lagoon bordered by conservation lands had the most stable seagrass beds, which supports watershed conservation efforts. Our results show that a multistate approach can empirically estimate state-transition probabilities as functions of environmental factors while accounting for state-dependent differences in seagrass detection probabilities as part of the overall statistical inference procedure.

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Section: Methodsmentioning

confidence: 98%

Effects of surrounding land use and water depth on seagrass dynamics relative to a catastrophic algal bloom

Breininger

Hall

2016

Conservation Biology

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“…La Mancha offers a wide variety of ecosystem services; it is a shelter for animal species and provides food for commercial fishing species, from juvenile to adult stages, thus supplying an economic base for the local fishing industry (Barreiro-Güermes and Matus, 1993). To improve their catch in the lagoon, the local fishermen open the inlet (Rivera-Guzmán et al, 2014) 2 or 3 times a year, by making a small break in the sand bar that blocks the inlet. The water exchange between the sea and the lagoon gradually widens this access channel.…”

Section: Study Areamentioning

confidence: 99%

“…These studies use field work, numerical and/or physical modelling to understand the system's ecological and physical dynamics (Alonso-Pérez et al, 2003;Houser et al, 2015;Lawson et al, 2007;Martins et al, 2001;Rivera-Guzmán et al, 2014). This paper focuses on the evaluation of the short-term vulnerability of a coastal lagoon, in terms of the erosion or accretion of the beach, the dynamics of the mouth of the lagoon and the hydrodynamics associated with the circulation patterns of the lagoon during winter storms, and the effects of anthropogenic interference in the system.…”

Section: Introductionmentioning

confidence: 99%

Response of Empirically Managed Sites to Winter Storms. Case Study: La Mancha, Veracruz, Mexico

Chávez-Cerón¹,

Mendoza-Baldwin²,

Ramírez-Méndez³

et al. 2017

Int. Conf. Coastal. Eng.

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The coastal lagoon of La Mancha, Veracruz, Mexico is significantly affected by winter storms, meteorological events known as Nortes. Because of the influence of the wind on beach sediment transport and therefore on the dynamics of the inlet, four topographic surveys were made, three during winter storms (November 2013, November 2014 and February 2015) and one more in the dry season (May 2014). Physicochemical parameters at the mouth were registered during November 2014. The circulation patterns of the lagoon were obtained using the numerical model H2D. The beach morphology field data shows that the beach is resilient to the effects of winter storms, as long as sediment availability is not interrupted. The circulation patterns of the lagoon indicate that winds and waves induce the opening and closing of the inlet. The governing force in the lagoon patterns is the tidal oscillations, as corroborated by the physical parameters measured. However, these natural cycles are interrupted by the actions of the local fishermen, who empirically manage the lagoon opening the inlet once or twice a year. We found that the environmental resilience of the estuarine-lagoon system is susceptible to the change in the frequency of the opening of the mouth, so the anthropogenic interference threats the dynamics of the natural system.

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“…1). The ALS is an estuarine lagoon with the seagrass Ruppia maritima, surrounded by mangrove, and also has several oligohaline water bodies surrounded by freshwater wetlands (ContrerasEspinosa and Warner, 2004;Rivera-Guzm an et al, 2014). The latter authors describe salinity changes, especially in the main water body of Alvarado, from freshwater values during the rainy season to brackish during the dry season.…”

Section: Description Of the Study Areamentioning

confidence: 99%

Trade-offs in fishery yield between wetland conservation and land conversion on the Gulf of Mexico

Vázquez-González¹,

Moreno‐Casasola²,

Juárez³

et al. 2015

Ocean & Coastal Management

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Long term state of coastal lagoons in Veracruz, Mexico: Effects of land use changes in watersheds on seagrasses habitats

Cited by 26 publications

References 17 publications

Effects of surrounding land use and water depth on seagrass dynamics relative to a catastrophic algal bloom

Effects of surrounding land use and water depth on seagrass dynamics relative to a catastrophic algal bloom

Response of Empirically Managed Sites to Winter Storms. Case Study: La Mancha, Veracruz, Mexico

Trade-offs in fishery yield between wetland conservation and land conversion on the Gulf of Mexico

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