Miriam Soria-Barreto

Autonomous University of Campeche

Commonly known as suckermouth armored catfishes or pleco, Pterygoplichthys spp. are a group of invasive fishes that are widely distributed in several countries, including Mexico. This paper reports the first records of suckermouth armored catfishes in the Candelaria River, thereby expanding its distribution within the Yucatan Peninsula. Fifteen ind...

Body shape is a morphological attribute that frequently changes as organisms adapt to environmental fluctuations and optimize the use of available resources. In fish whose distribution includes estuarine and riverine environments, it is common to observe changes in body shape that are related to maneuverability and speed of movement in response to...

Floodplain lakes are highly productive and biodiverse ecosystems whose food webs depend on a variety of autochthonous and allochthonous resources. Thus far, the role of attached algae, and epiphytes in particular has been understudied, although often high densities of macrophytes in these lakes may provide extensive substrate for attached algal gro...

Mangroves are coastal wetlands with high biodiversity and productivity, with great interaction with coastal environments. In the face of worldwide mangrove loss, restoration projects attempt to recover ecosystem composition and functioning over time. Our objective was to examine and compare the food webs in mangrove areas with different restoration...

Heroine cichlids are characterized by high morphological diversity, mainly in structures related to the capture and processing of food. The existence of ecomorphological groups has been proposed based on feeding behavior, where it is common for some phylogenetically unrelated species to show evolutionary convergence. Using geometric morphometrics a...

The Chiapas killifish, Tlaloc hildebrandi is an endangered and endemic fish that inhabits wetlands, mountain streams, and rivers in Chiapas, Mexico. This species is considered vulnerable due to accelerated human population growth in its distribution range and the species’ low genetic diversity. To evaluate the conservation status of the species, we...

The systematics of the genus Vieja is complex because it contains many morphologically similar species that have little genetic differentiation. Examination of morphological traits can be useful for clarifying their taxonomic status. We analyzed the morphological variation of bones in the oral and lower pharyngeal jaws to determine whether these st...

Coexisting species often develop resource‐partitioning mechanisms to reduce their direct competition and optimize energy harvesting. Common Snook Centropomus undecimalis and Mexican Snook C. poeyi are carnivorous fish that coexist in estuaries of the Usumacinta River delta, in the southern Gulf of Mexico, and play an important role for fisheries an...

The endangered Chiapas killifish Tlaloc hildebrandi is an endemic freshwater species that lives in four subbasins of the Grijalva and Usumacinta basins, and one of the most geographically restricted species of the Produndulidae family. The species was originally described as endemic to springs in the high limestone plateau in San Cristóbal de Las C...

Estuaries are dynamics systems, with great spatiotemporal variation in their environmental and biological characteristics. In this study, we analyzed the community attributes such as richness, diversity, evenness, species and trophic guild abundance, of the ichthyofauna in the delta of the Usumacinta River during rain, dry and north wind seasons. A...

The present study evaluated the ecological response of fish fauna to hydrological restoration in a mangrove area in Terminos Lagoon in the Gulf of Mexico. In two years, environmental parameters and ichthyofauna were obtained in a channel under restoration and a conserved channel. The fish fauna was composed of 12 species. As a result of the restora...

Floodplains are some of the most productive and diverse ecosystems on Earth. The Usumacinta River Basin, in the Southern Gulf of Mexico, hosts several floodplain lakes, whose integrity is threatened by water resource development. We aimed to investigate how food webs in these ecosystems vary in relation to their hydrological connectivity and season...

Aquatic food webs in tropical rivers are affected by spatial and temporal variations in basal resources and the composition of consumer assemblages. We used stable isotope analysis to estimate seasonal variation in basal resources supporting fish biomass in zones along the longitudinal gradient of the Usumacinta River Basin, the largest of Mesoamer...

Basic information about importance the cultive of Mayaheros beani.

The biodiversity data typically available for fitting distributional models in the tropics come from museum and scientific collections which are often incomplete and prone to sampling and environmental biases. Nevertheless, most studies undertaken in tropical regions assume that collection data offers a satisfactory environmental coverage without a...

Environmental changes caused by hydrological shifts between wet and dry seasons in the tropics drive variation in resource availability and feeding interactions for riverine fish assemblages, but studies of trophic structure typically take place over short time scales that do not adequately capture this variation. In this study, we used stable isot...

During adaptive radiation, diversification within clades is limited by adaptation to the available ecological niches, and this may drive patterns of both trait and species diversity. However, adaptation to disparate niches may result in varied impacts on the timing, pattern and rate of morphological evolution. In this study, we examined the relatio...

Neotropical cichlids exhibit great diversity of morphological traits associated with feeding, locomotion, and habitat use. We examined the relationship between functional traits and diet by analyzing a dataset for 14 cichlid species from rivers in the Selva Lacandona region, Usumacinta Basin, Chiapas, Mexico. Volumetric proportions of ingested food...

Assessments of trophic diversity are critical for evaluating ecological integrity of habitats, but interpretations of such assessments require an understanding of variation across natural environmental gradients. This can be problematic when comparing structure of assemblages in under-studied regions or habitats, such as watersheds in dry tropical...

The gar, Atractosteus tropicus is a native fish distributed in fluvial systems of the Mexican southeast, which presents aquaculture potential in the food industry and as ornamental species. However, it is necessary to deepen the knowledge for the optimization of its culture. The present study examined the effect of three feeding frequencies on the...

The Usumacinta Basin is characterized by its large size, ecological heterogeneity and high diversity of fish. The purpose of this work was to examine the richness and distribution of the fish fauna, and analyze the diversity and abundance in three zones of the basin. The records (1994-2014) in the Fish Collection (ECOSC) are included, additional in...

La REBISO se ubica hidrológicamente en la región Grijalva-Tuxtla Gutiérrez, su principal afluente es el río La Venta, que se origina en la parte norte de la Sierra Madre de Chiapas y se une al río Negro, para finalmente desembocar en la presa Nezahualcóyotl. Además, el río Cacahuanó que nace en las sierras de Veinte Casas y Sombrerón, desemboca en...

Se presenta la descripción, aspectos biológicos y ecológicos del cíclido Cichlasoma grammodes

Se presenta información sobre las características morfológicas, aspectos biológicos y ecológicos del cíclido Vieja hartwegi, especie endémica de México.

El capítulo abarca aspectos morfológicos, distribución, biología y ecología del charal endémico Chirostoma grandocule

Se describe la morfología, aspectos biológicos y ecológicos del aterinópsido Menidia colei.

The San Pedro Mezquital River is the seventh largest river in Mexico, and flows through the Sierra Madre Occidental into the Marismas Nacionales Biosphere Reserve, on the coast of the state of Nayarit. The present study is to conform a systematic checklist of fishes in the lower basin of the San Pedro Mezquital River. In total, 52 species were coll...

The development of culturing techniques has been a successful strategy to protect species. Natural populations of the opossum pipefish, Microphis brachyurus are affected in Mexico by anthropogenic alteration of their habitat and unregulated fishing as this species is traded as an aquarium fish without formal records as occurs with other syngnath...

El género Profundulus es uno de los grupos de peces más antiguos, distribuidos al norte de América Central en México, Guatemala y Honduras. No obstante, son pocos los trabajos que se han realizado para conocer el número de especies que lo conforman y sus relaciones filogenéticas. Históricamente se reconoció que este taxón estaba conformado por dos...

The genus Profundulus is one of the oldest fish groups, distributed north of Central America in Mexico, Guatemala and Honduras. However, there are few studies that determine the number of species and their phylogenetic relationships. Historically it has been recognized that this taxon comprises two natural groups, defined as the subgenus Profundulu...

The Mexican cichlid Cichlasoma beani is currently exploited regionally as food and can be commercialized in the aquarium trade. Natural populations of C. beani may already be negatively affected by anthropogenic alteration of the areas in which it is distributed. The aim of the present study was to examine the effect on growth, survival, and condit...

The Mexican cichlid, Cichlasoma beani has potential to be a candidate for the aquarium trade and the food industry. However, currently there are no studies regarding the effect of environmental factors on the species in culture conditions. The aim of this study was to assess the potential of C. beani to be maintained in cultured conditions. Additio...

The Mexican cichlid, Cichlasoma beani has potential to be a candidate for the aquarium trade and the food industry. However, currently there are no studies regarding the effect of environmental factors on the species in culture conditions. The aim of this study was to assess the potential of C. beani to be maintained in cultured conditions. Additio...

La ictiofauna del estado de Nayarit México ha sido poco estudiada y documentada, así el objetivo del trabajo es presentar el listado de los peces reportados en el estado a partir de una exhaustiva revisión bibliográfica y consulta de bases de datos disponibles en internet. Se encontraron 587 especies reportadas. La mayoría de los registros correspo...

La ictiofauna del estado de Nayarit, México ha sido poco estudiada y documentada, así el objetivo del trabajo es presentar el listado de los peces reportados en el estado a partir de una exhaustiva revisión bibliográfica y consulta de bases de datos disponibles en internet. Se encontraron 587 especies reportadas. La mayoría de los registros corresp...

Chiapas has 410 fishes belonging two classes: Chondrichththyes (Cartilaginous fish) and Actinopterygii (Bony fish) including 30 orders, 82 families, and 204 genera. 72.9% (299) are marine fish, 24.4% (100) are freshwater fish and 2.7% (11) are vicariance species.

We evaluated and compared morphological characteristics among the 6 species of Vieja Fernández-Yépez, 1969 from Usumacinta River. We analyzed 20 adults by specie, obtaining 33 measurements, which were standardized and analyzed with a discriminant analysis. We also performed a comparison of body shape among species, using the geometric morphometric...

Located within Mexico’s Montes Azules Biosphere Reserve, the Tzendales River is part of the Usumacinta River Basin, which supports the largest diversity of cichlid fishes in Middle America. We evaluated temporal and spatial variation of species richness and distribution of cichlids in the Tzendales River; we collected 14 species with nine native an...

Results of morphometrical comparison of the species of the "labialis complex", of the genus Profundulus, based on 11 traditional and 21 crossed measures, are herein presented. Through the principal components and cluster analyses we have found that Profundulus labialis and P. candalarius show a similar morphological pattern, characterized by the gr...

Se presentan los resultados de la comparación morfométrica de las especies del "complejo labialis", del género Profundulus, basada en 11 medidas tradicionales y 21 cruzadas. Mediante el análisis de componentes principales y agrupamiento se demostró que Profundulus labialis y P. candalarius muestran un patrón morfológico semejante, caracterizado por...

The genus Chirostoma is a group of fishes endemic to the Mesa Central of Mexico, whose diversification is explained both by processes of allopatric speciation in lotic environments, and by intralacustrine diversification through sympatric speciation. Trying to corroborate the second hypothesis for species of Chirostoma from Lake Pátzcuaro, we evalu...

The genus Chirostoma is a group of fishes endemic to the Mesa Central of Mexico, whose diversification is explained both by processes of allopatric speciation in lotic environments, and by intralacustrine diversification through sympatric speciation. Trying to corroborate the second hypothesis for species of Chirostoma from Lake Pátzcuaro, we evalu...