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“…Changes in environmental conditions in the PNSAV region during periods of weather associated with a cold front, rainy weather, tropical storms, and hurricanes cause a mixed layer in the water column, incorporating nutrients into the photic zone (Zavala-Hidalgo et al, 2006, which can be used by phytoplankton, zooplankton such as mysis that feed on the algae (Schwamborn et al, 2001). In cold front weather conditions winds along Tamaulipas and Veracruz coasts produce cyclonic currents in a southerly direction, while those in the states of Campeche Bank values of dissolved oxygen, due to the increase in chlorophyll (Álvarez-Cadena et al, 2007), and a response to nutrient input by the estuarine plume of the Jamapa River during rainy conditions (Horta-Puga et al, 2016). However, Landeira & Lozano-Soldevilla ( 2018), commented that valuable information is obtained from knowing the place and potential spawning season for a species, and the temporal distribution of decapod larvae suggests a larval hatching period for many species with peaks of abundance associated with seasonality.…”

“…The Parque Nacional Sistema Arrecifal Veracruzano (PNSAV) is a highly productive ecosystem (Rodríguez-Gómez et al, 2013), which is the reason it was designated as a Marine Protected Area under the classification of National Marine Park in 1992 (DOF, 1992(DOF, , 2012 and has since been declared a Biosphere Reserve within the Man and the Biosphere Program (UNESCO, 2006) and registered as a Ramsar site (number 1346) (FIR, 2004). This reef system is comprised of several individual coral reefs, divided into northern and southern groups by the influence of the fluvial plume of the Jamapa River (Horta-Puga et al, 2016).…”

Density of mysis of Penaeus aztecus Ives, 1891 on a reef in the Southwest of the Gulf of Mexico

“…Changes in environmental conditions in the PNSAV region during periods of weather associated with a cold front, rainy weather, tropical storms, and hurricanes cause a mixed layer in the water column, incorporating nutrients into the photic zone (Zavala-Hidalgo et al, 2006, which can be used by phytoplankton, zooplankton such as mysis that feed on the algae (Schwamborn et al, 2001). In cold front weather conditions winds along Tamaulipas and Veracruz coasts produce cyclonic currents in a southerly direction, while those in the states of Campeche Bank -Cadena et al, 2007), and a response to nutrient input by the estuarine plume of the Jamapa River during rainy conditions (Horta-Puga et al, 2016). However, Landeira & Lozano-Soldevilla (2018), commented that valuable information is obtained from knowing the place and potential spawning season for a species, and the temporal distribution of decapod larvae suggests a larval hatching period for many species with peaks of abundance associated with seasonality.…”

Metales pesados en tejidos y céstodos intestinales del tiburón puntas negras, Carcharhinus limbatus (Müller y Henle, 1839) del arrecife Santiaguillo, PNSAV, Veracruz, México

“…En tanto, en el Parque Nacional Sistema Arrecifal Veracruzano (PNSAV), se han registrado en sedimentos marinos metales pesados como hierro, vanadio, cromo, zinc, níquel, plomo y cobre (Rosales-Hoz et al, 2009) y Cd (Zamudio-Alemán et al, 2014); además de cadmio, cobre y plomo en macroalgas bénticas (Horta-Puga et al, 2016); y cadmio, plomo, vanadio y zinc en músculo del pez león, Pterois volitans (Linnaeus, 1758) (Montoya-Mendoza et al, 2019). Se podría agregar que estos contaminantes llegan al parque marino principalmente por las escorrentías de los ríos de La Antigua, Jamapa y Papaloapan que vierten sus aguas muy cerca de los límites del parque marino (Vázquez-Botello et al, 2004;Zamudio-Alemán et al, 2014;Horta-Puga, 2016). En el presente estudio se analizó la concentración de plomo, cadmio y cobre en tejidos y cétodos parásitos del tiburón C. limbatus del PNSAV.…”

“…Por otro lado, el Pb, tampoco rebasó los límites internacionales de 2.0 mg kg -1 en peso húmedo según la FAO/OMS (Codex Alimentarious, 2017). En tanto, las concentraciones de los metales pesados en los céstodos fueron indetectables (<0.0028 mg kg -1 ), por lo que no se puede establecer, que en la relación hospedero-parásitos se favoreciera la absorción de contaminantes por los parásitos intestinales, como se ha señalado para otras especies de hospederos y sus helmintos parásitos, por lo tanto, no se pueden proponer como especies indicadores de contaminación para metales pesados en el PNSAV, lo cual hace suponer que está llegando menor cantidad de metales pesados al mar (Rosales-Hoz et al, 2009;Horta-Puga et al, 2016;Zamudio-Alemán et al, 2014).…”