Relaciones Tróficas De Cinco Especies De Peces De Interés Comercial en La Bahía De Cartagena, Caribe Colombiano

Cogua, Pilar; Jiménez-Reyes, María F.; Duque, Guillermo

doi:10.25268/bimc.invemar.2013.42.1.68

Cited by 8 publications

(9 citation statements)

References 7 publications

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“…The proximity of these dangerous mercury levels to the surface is clearly of great concern for the ecosystem and coastal residents when one considers the frequent dredging activities needed to maintain the bay's maritime transport sector. Monitoring results presented in Figure 7b show that among various locations sampled over the 2014-2022 period, the median mercury concentration in the sediments on the surface of Cartagena Bay's bottom is 0.11 μg/g (Tosic, Restrepo, et al, 2019), similar to results in other recent studies (Alonso et al, 2000;Caballero Gallardo et al, 2020;Cogua et al, 2012;Espinosa Díaz et al, 2021;Parra et al, 2011). This median value is just below the Threshold Effects Levels (TEL) of 0.13 μg/g (Buchman, 2008) used as an indicator of potential impacts on marine life, which means that about half of the data from Cartagena Bay is above the TEL, while 75% of results from the bay's industrial zone exceed the TEL (Figure 7b).…”

Section: Mercury Levels In Bay Sedimentssupporting

confidence: 87%

Sustainability impacts of sediments on the estuary, ports, and fishing communities of Cartagena Bay, Colombian Caribbean

Tosic,

Restrepo Ángel

2023

WIREs Water

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This article reviews research on sediment flux impacts on the receiving estuary, ports, and society in Cartagena, Colombia. The city hosts both the country's largest touristic and coastal industrial sectors and is home to vulnerable coastal communities whose health and livelihoods are impacted by pollution. These marginalized artisanal fishing communities lack basic water and health services but have finally been recognized in a new intersectoral committee for Cartagena Bay's environmental management. To support the governance of these complex socioenvironmental challenges, the Cartagena Bay Observatory has been developed as a scientific tool to monitor the bay's conditions and forecast the effects of future sediment remediation plans. Cartagena Bay receives large freshwater discharges from the Dique Canal, draining from the 260,000 km2 Magdalena River watershed where 80% of the national population resides. This runoff transports sediment loads of 2.3 Mt/year, dispersing large plumes that affect the marine ecosystems and tourism and make the bay one of the Caribbean's largest sediment‐receiving estuaries. Following decades of watershed deforestation and erosion, the upward trending sediment inputs and accretion of the Dique delta have resulted in deposition rates of 1.8 cm/year, and the need for frequent dredging. Mercury dumped by a chemical industry in the 1970s can be found in concentrations as high as 18.8 μg/g buried below the bay's bottom. Mercury has also been found in the bay's biota and human populations, and so the dredging needed for the port's sustainability thereby presents a health risk by allowing this trapped mercury to surface.This article is categorized under: Science of Water > Hydrological Processes Science of Water > Water Quality Science of Water > Water and Environmental Change

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Section: Mercury Levels In Bay Sedimentssupporting

confidence: 87%

Sustainability impacts of sediments on the estuary, ports, and fishing communities of Cartagena Bay, Colombian Caribbean

Tosic,

Restrepo Ángel

2023

WIREs Water

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“…Gómez-Canchong et al (2004) indicated that M. incilis has a high consumption of detritus, followed by phytoplankton and a very low consumption of zooplankton. Bustos & Pérez (2003) and Cogua et al (2013) indicated that M.…”

Section: Sumentioning

confidence: 99%

Environmental, Biological, and Fishing Factors Influencing Fish Mortality and Development of the Cachirra event, Navío Quebrao Lagoon

Echavez

Gulloso

2022

Tecnura

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Objetive: The present study analyzes environmental, biological and fishing factors incidence in the formation and mortality of the Cachirra event. Methodology: We collected samples from fishing nets used by the fishermen of "arranchaderos" community located in Navio Quebrao Lagoon (NQL). IDEAM provided 2017 climatologic data. Physicochemical variables were measured with Spectroquant SQ 118 and other direct measurement electronic devices. SPSS statistical software version 24.0 was used to analyze data and their relationships. Results: 12 species intervene in the formation of the Cachirra event, predominantly the Mugilidae family. Salinity was the physicochemical variable that most affected the mortality of the species -October (6.0 PSU) and March (67.4 PSU)-. Conclusions: Fishes die according to their susceptibility to salinity changes, being the most susceptible species Cathrorops spixii and Eugerres plumieri, and the most resistant Elops saurus and Mugil liza. The species present in NQL have sizes well below commercial significance and different condition factor values and repletion index values before and after the Cachirra event.

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“…Así mismo, se determinó el coeficiente de vacuidad (CV) (Ec. 5) (Olaya & Arellano, 2012;Cogua et al, 2013).…”

Section: Métodos De Muestreounclassified

Hábitos alimentarios de tres especies de peces lenguados (Pleuronectiformes: Achiridae) en la Bahía de Buenaventura, Pacífico Colombiano

Villarraga¹,

Molina²,

Duque³

2021

Rev. Biol. Trop.

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Introducción: La dinámica de las condiciones ambientales influencia la variación del alimento disponible para los organismos estuarinos, afectando el consumo de alimento de los organismos bentónicos como los lenguados, esenciales para establecer y monitorear la calidad ambiental en estos ecosistemas. Objetivo: Determinar los hábitos tróficos de tres especies de la familia Achiridae en la Bahía de Buenaventura, Pacífico colombiano. Métodos: Los peces se recolectaron por medio de pesca de arrastre artesanal. Así mismo, en laboratorio se determinó la dieta de cada una de las especies y se calcularon diferentes índices tróficos, registrando diferencias en los hábitos alimentarios entre estas especies. Resultados: Se recolectó un total de 159 peces del género Achirus, siendo la especie más abundante Achirus klunzingeri (98), luego Achirus mazatlanus (44) y finalmente Achirus scutum (17). La dieta de A. scutum se basó en detritos, la de A. mazatlanus en detritos y peces y la de A. klunzingeri en crustáceos y peces. Los individuos de A. klunzingeri presentaron diferencias en su dieta entre la zona interna y externa del estuario, en la zona interna los peces fueron la presa principal y en la zona externa fueron los crustáceos. Las especies A. klunzingeri y A. mazatlanus presentaron ingesta de microplásticos, principalmente fibras alargadas e incoloras presentes en individuos de todas las tallas. La dinámica de los hábitos tróficos de A. klunzingeri, se relacionaron con algunas variables ambientales, como temperatura, trasparencia y oxígeno disuelto. Por ejemplo, estas tres variables presentaron correlaciones negativas con el ítem peces, y positivas para la categoría crustáceos. Conclusión: Se evidenció que estas especies son generalistas y que las condiciones ambientales no solo influenciaron la dinámica del consumo alimentario, sino que también, determinaron la presencia de los microplásticos.

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Relaciones Tróficas De Cinco Especies De Peces De Interés Comercial en La Bahía De Cartagena, Caribe Colombiano

Cited by 8 publications

References 7 publications

Sustainability impacts of sediments on the estuary, ports, and fishing communities of Cartagena Bay, Colombian Caribbean

Sustainability impacts of sediments on the estuary, ports, and fishing communities of Cartagena Bay, Colombian Caribbean

Environmental, Biological, and Fishing Factors Influencing Fish Mortality and Development of the Cachirra event, Navío Quebrao Lagoon

Hábitos alimentarios de tres especies de peces lenguados (Pleuronectiformes: Achiridae) en la Bahía de Buenaventura, Pacífico Colombiano

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