Grijalva River Basin Research Articles

Length-weight relationships for 32 fish species in the Grijalva River Basin, México

Summary Length-weight relationships were estimated for 32 species belonging to 11 fish families from the Grijalva River, Mexico. For 24 of the species, the length-weight relationships are published for the first time.

Primer registro de Xiphophorus clemenciae (Cyprinodontiformes: Poeciliidae) en la cuenca del río Grijalva, México

We present a new record of the endemic fish Xiphophorus clemenciae Álvarez, 1959 for the Grijalva River Basin, Chiapas, Mexico. This is the first record found off the Coatzacoalcos River Basin in Oaxaca and Veracruz. Due to their widespread distribution and high abundance, it will be necessary to apply the Method of Evaluation of Risk Extinction for Mexican Wild Species (MER) to update its status on the Mexican Law Nom-059-Semarnat-2010.

Contested Realities: The Intersection Between Water Management for Hydroelectricity and Food Production in Tabasco, Mexico

Water development projects to manage the country's water reserves for flood control, agriculture and energy production have always been part of the Mexican federal government's politics. In southeastern Mexico these projects have been proposed to promote ‘modernization’ in a region characterized by a high level of social marginalization. A prime example of these projects is the Plan Chontalpa (referred to from here on as the Plan), a large-scale, state-led development initiative proposed by the federal government to manage the Grijalva River basin and promote industrial agricultural production and social development in Tabasco (Figure 1). Plan Chontalpa was meant to be a model for development in humid tropical regions. However, it fell short of its original goals of promoting hydroelectricity generation and agricultural production. Plan Chontalpa has been changing through the years and most recently is promoting a "green" development following the guidelines of the Puebla-Panama Plan, a regional development initiative impacting all Mexican states located south of Puebla and all the Central American countries up to Panama.

Floods in Tabasco, Mexico: a diagnosis and proposal for courses of action

AbstractFrom 28 to 30 October 2007, exceptional rainfall fell in the Grijalva River Basin, in Chiapas and Tabasco, Mexico, producing huge runoff and flooding in about 70% of the Tabasco flatlands. More than 1 million people were affected, mostly in the city of Villahermosa. In southeastern Mexico, flooding damages have increased in the last decades, due to population growth and human settlements developing in areas prone to flooding. A preliminary analysis is made of the causes of the disaster and of the possible courses of action that could be taken to prevent similar situations in the future. The hydrometeorological occurrence of the phenomenon is reviewed, and the operation and management of dams and other flood control system components, including forecast and alert procedures, are assessed. Recommendations are made on integrated flood management, joint operational policies of infrastructure, a territorial ordinance plan, forecast needs, social participation, training, and information dissemination among the population and stakeholders.

A Correlation of the Sidon River and the Lands of Manti and Zarahemla with the Southern End of the Rio Grijalva (San Miguel)

Abstract We construct a detailed geographical model of the Nephite homeland areas of Manti, Zarahemla, and the river Sidon using the Book of Mormon text of around 80 B.C. This model assumes that these areas are located in Mesoamerica, that the names of their surrounding seas do not necessarily correspond to local compass directions, and that the directions stated in the text are to be understood in the nontechnical normal English sense. We then describe the southern end of the Grijalva river basin, located across the southern part of the Mexico-Guatemala border. We nominate this area as a possible candidate for the ancient Nephite homeland because it corresponds to the text’s topography from the most general to the most detailed parts of the description. Furthermore, significant geographical and climatic changes in this area over the last 2000 years are unlikely. The number and detail of the topological matches encourage further careful study.

The Coxoh Colonial Project and Coneta, Chiapas Mexico: A provincial Maya village under the Spanish conquest

The Brigham Young University-New World Archaeological Foundation is developing an interdisciplinary research program focused on the upper Grijalva River basin which was occupied at the time of the Spanish conquest principally by indigenous Coxoh Mayan-speakers. Five important Coxoh villages have been identified and located in this region and excavtions are planned at all of them.