Fishes as indicators of untreated sewage contamination in a Mexican coastal lagoon

Aguilar-Betancourt, Consuelo; González-Sansón, Gaspar; Kidd, Karen A.; Munkittrick, Kelly R.; Curry, R. Allen; Kosonoy-Aceves, Daniel; Lucano-Ramírez, Gabriela; Ruiz-Ramírez, Salvador; Flores-Ortega, Juan Ramón

doi:10.1016/j.marpolbul.2016.08.073

Cited by 17 publications

(13 citation statements)

References 49 publications

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“…Achirus mazatlanus es el lenguado más abundante de la laguna costera de Barra de Navidad (Jalisco, México), donde alcanza tallas de 22 cm (González-Sansón et al 2014). Su abundancia, fácil captura y permanencia en el sistema han despertado el interés de utilizar la especie como potencial bioindicador de contaminación en la laguna (Aguilar-Betancourt et al 2016). A pesar de su abundancia y amplia distribución, existen pocos estudios de la especie, y solo se menciona en listados sistemáticos (e.g., Aguilar-Palomino et al 2001, Lucano-Ramírez et al 2001, en un estudio de alimentación e información parcial de la reproducción (Amezcua-Linares et al 1992) y en estudios de aspectos taxonómicos (Ortíz-Galindo et al 1990, Gracian-Negrete y Del Moral-Flores 2013.…”

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Reproductive characteristics of the sole Achirus mazatlanus (Pleuronectiformes: Achiridae) in the Barra de Navidad coastal lagoon, Jalisco, Mexico

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is one of the most widely distributed and abundant soles occurring on the Pacific coast of Mexico, yet most of its biological and reproductive characteristics are unknown. Weekly and monthly samples were collected in the Barra de Navidad coastal lagoon (Jalisco, Mexico) from February 2011 to August 2016 to assess the reproductive biology of this species. Observed total sex ratio (F1.00:M1.03) was not significantly different from the expected 1:1 ratio. Females were, on average, larger than males. The observed monthly gonadosomatic index, percentage of mature gonads, mean oocyte diameter, and ovarian-wall thickness suggest that the species reproduces year-round, with an important reproductive season lasting from April to August. Females were classified as partial spawners with asynchronous oocyte development, and males showed unrestricted spermatogonial testes. The presence of spawned individuals and hydrated oocytes in certain months indicates that the species could be spawning in the lagoon; however, the occurrence of eggs and larvae needs to be demonstrated to ascertain this statement. This was the first time length at sexual maturity was assessed for female (10.84 cm) and male (10.23 cm) A. mazatlanus.

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Reproductive characteristics of the sole Achirus mazatlanus (Pleuronectiformes: Achiridae) in the Barra de Navidad coastal lagoon, Jalisco, Mexico

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“…Ariopsis guatemalensis belongs to this family and is one of the 92 reported fish species in the Barra de Navidad Lagoon (Jalisco, Mexico) (González-Sansón et al 2014). This species is of demersal habits (Froese and Pauly 2014) and is capable of bioaccumulating heavy metals (Roosevelt-Rodríguez et al 2014, Aguilar-Betancourt et al 2016. No studies have been made on its trophic biology.…”

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“…The site is a ~334-ha-euryhaline-lagoon system that is permanently connected to the sea. The main freshwater supply comes from the Arroyo Seco and the Marabasco Rivers (more details on the study area can be found in Aguilar-Betancourt et al 2016).…”

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“…As a complementary approach, we used the prey-specific index of relative importance (PSIRI, Ariopsis guatemalensis pertenece a esta familia y es una de las 92 especies de peces registradas dentro de la laguna Barra de Navidad (Jalisco, México) (González-Sansón et al 2014). Esta especie tiene hábitos demersales (Froese y Pauly 2014) y es capaz de bioacumular metales pesados (Roosevelt-Rodríguez et al 2014, Aguilar-Betancourt et al 2016. No se han realizado estudios sobre su biología trófica.…”

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“…El sitio es un sistema lagunar eurihalino de aproximadamente 334 ha que tiene comunicación permanente con el mar. El principal aporte de agua dulce procede de los ríos Arroyo Seco y Marabasco (más detalles sobre el área de estudio se pueden encontrar en Aguilar-Betancourt et al 2016).…”

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Diet composition and its relation to the characteristics of the digestive tract of the blue sea catfish, Ariopsis guatemalensis (Actinopterygii: Ariidae), in Barra de Navidad Lagoon, Jalisco, Mexico

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Diet composition and its relation to the characteristics of the digestive tract of the blue sea catfish, Ariopsis guatemalensis (Actinopterygii: Ariidae), in Barra de Navidad Lagoon, Jalisco, Mexico Composición de la dieta y su relación con las características del tracto digestivo del chihuil Ariopsis guatemalensis (Actinopterygii: Ariidae) en la laguna Barra de Navidad, Jalisco, México A . Diet composition and the characteristics of the digestive tract of the blue sea catfish, Ariopsis guatemalensis, in a coastal lagoon in western Mexico were investigated. This species is consumed by locals and it has been used as a bioindicator of sewage pollution. This study aimed to determine if the feeding habits of this species were related to the macroscopic and microscopic morphological characteristics of the digestive tract. Specimens were captured in the Barra de Navidad Lagoon (Jalisco, Mexico) from 2011 to 2016. For every fish collected, total length (TL) was recorded and the esophagus, stomach, and intestine were extracted for histological analyses and identification of food items in their diet. The macroscopic and microscopic characteristics of the digestive tract and the stomach content analysis indicate A. guatemalensis is a carnivorous species with preference for goby fish. Crustaceans were the second most important food item and were dominated by portunid crabs and mud shrimps. The size and position of the mouth, the presence of dental plates on the vomer, palatines, premaxilla, and pharynx, and the presence of goblet cells in the digestive tract are characteristic of fishes that consume live hard-bodied prey and crush their food before it enters the esophagus. The relatively short intestine and the folds in the mucous membrane are characteristic of carnivorous fishes. R. Se investigaron la composición de la dieta y las características del tracto digestivo del chihuil Ariopsis guatemalensis en una laguna costera en el oeste de México. Esta especie es consumida por habitantes locales, y ha sido utilizada como bioindicadora de contaminación por aguas negras. El objetivo de este estudio fue determinar si los hábitos alimentarios de la especie están relacionados con las características morfológicas macroscópicas y microscópicas del tracto digestivo. Se capturaron los especímenes en la laguna Barra de Navidad (Jalisco, México) de 2011 a 2016. De cada individuo recolectado, se midió la longitud total (LT) y se extrajeron el esófago, el estómago y el intestino para el análisis histológico y la identificación de las entidades alimentarias en su dieta. Según las características macroscópicas y microscópicas del tracto digestivo y el análisis del contenido estomacal, A. guatemalensis tiene hábitos carnívoros y preferencia por los peces góbidos. Los crustáceos fueron la segunda entidad alimentaria más importante, de los cuales destacaron los cangrejos portúnidos y los camarones de fango. El tamaño y la posición de la boca, la presencia de placas dentarias en el vómer, los palatinos, los premaxilares y la faringe, y la pres...

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Monitoring of Paralytic Shellfish Toxins Using Biological Assays

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2022

Biotechnological Innovations for Environmental Bioremediation

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Fishes as indicators of untreated sewage contamination in a Mexican coastal lagoon

Cited by 17 publications

References 49 publications

Reproductive characteristics of the sole Achirus mazatlanus (Pleuronectiformes: Achiridae) in the Barra de Navidad coastal lagoon, Jalisco, Mexico

Reproductive characteristics of the sole Achirus mazatlanus (Pleuronectiformes: Achiridae) in the Barra de Navidad coastal lagoon, Jalisco, Mexico

Diet composition and its relation to the characteristics of the digestive tract of the blue sea catfish, Ariopsis guatemalensis (Actinopterygii: Ariidae), in Barra de Navidad Lagoon, Jalisco, Mexico

Monitoring of Paralytic Shellfish Toxins Using Biological Assays

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