Daniel Pech- Ph D Biology
- Professor (Full) at El Colegio de la Frontera Sur- Campeche
Daniel Pech
- Ph D Biology
- Professor (Full) at El Colegio de la Frontera Sur- Campeche
About
68
Publications
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Introduction
Current institution
El Colegio de la Frontera Sur- Campeche
Current position
- Professor (Full)
Additional affiliations
April 2005 - December 2007
Position
- PostDoc Position
January 1999 - March 2013
April 2011 - present
Education
January 2000 - October 2004
Publications
Publications (68)
El libro “Tópicos Selectos de Contaminación Ambiental” reúne investigaciones de expertos en ciencias ambientales de diversas instituciones académicas, como parte de los Programas Multidisciplinarios de Posgrados y de los Programas de Licenciaturas afines a las Ciencias Ambientales que se imparten en las diferentes instituciones participantes. En es...
Las comunidades coralinas del Parque Nacional Huatulco representan el 60% (18 de 30) de las comunidades arrecifales
del estado de Oaxaca (López-Pérez et al., 2008) albergan 10 especies de corales, 32 especies de equinodermos y 150 especies de peces. A esto se le suman innumerables especies de poliquetos, moluscos y crustáceos, entre muchos otros gr...
Coastal ecosystems with karstic geology have a unique characteristic where the dissolution of carbonate rocks can increase total alkalinity (TA) and dissolved inorganic carbon (DIC). This results in higher inorganic carbon budgets in coastal areas. One such ecosystem is the Terminos Lagoon, the most extensive tropical estuarine lagoon system in Mex...
Vertical migration in ichthyoplankton is relevant for its survive and it has been documented in estuaries with more than 10 m depth. In shallow estuaries this process is unknow or not supposed since no environmental stratification is assumed. The objective of this research is to investigate the vertical variability of fish larvae assemblages in sha...
Este protocolo tiene como objetivo establecer un procedimiento para la toma de muestras y datos de campo de la biota portuaria que garantice el estudio de la biodiversidad de anélidos poliquetos nativos en marinas y puertos de México y detectar las especies exóticas e invasoras en sitios prioritarios para su conservación, usando sistemática tradici...
Esta obra constituye una guía de procedimientos a seguir para el muestreo, análisis y estudio de la biota portuaria en México. Como herramienta estandarizada, guía a los usuarios paso a paso, desde la planificación para la toma de muestras en marinas, puertos y áreas naturales protegidas de México, hasta el análisis de la información. Tiene el pode...
Evaluated the diel variability of abundance and species diversity of the epibenthic community associated with seagrasses in Los Petenes Biosphere Reserve (LPBR) in the southwestern Gulf of Mexico. For this purpose, four collection campaigns were conducted (rainy season: October 2011 and June 2016, dry season: March 2012 and 2016) in a diel cycle wi...
The dynamics and distribution of the carbonate system and the processes that regulate it over the Yucatan Shelf (YS), a region of karst geology and high productivity that is influenced by submarine groundwater discharges (SGDs) and upwelling, were explored with data from two oceanographic cruises. The first oceanographic cruise was conducted in Nov...
International agreements have been used to focus global attention on areas of both marine and terrestrial conservation concern. Currently, The Convention for the Protection and Development of the Marine Environment in the Wider Caribbean Region, known as the Cartagena Convention (Cartagena), is the only multilateral environmental agreement in force...
Two new genera (Paraeperopeus and Dentimelita) and four new deep-sea amphipod crustacean species of little-known genera (Neohela, Pardaliscella, Pardaliscoides and Tosilus) from the Perdido Fold Belt, Gulf of Mexico Abstract Two new genera and six new species of benthic amphipods from the soft sediments of the Perdido Fold Belt region, western Gulf...
Here we explored the potential association of the benthic macrofauna species composition with aliphatic hydrocarbons, polycyclic aromatic hydrocarbons and metals concentration detected in the sediments of the Yucatan continental Shelf (YCS), Mexico. The main objective was to provide insights on the temporal and spatial changes of such association i...
Oiling scenarios following spills vary in concentration and usually can affect large coastal areas. Consequently, this research evaluated different crude oil concentrations (10, 40, and 80 mg L−1) on the nearshore phytoplanktonic community in the southern Gulf of Mexico. This experiment was carried out for ten days using eight units of 2500 L each;...
The biodiversity and biogeographic affinity of benthic amphipods from the Yucatan continental shelf with the warm Northwest Atlantic ecoregions were analysed using species occurrence data from benthic marine habitats of the continental shelf (< 200 m). A comprehensive collection of distributional data (presence-only) was obtained from different sou...
Las comunidades planctónicas en el ambiente marino son potenciales indicadores
que permiten evaluar el impacto de los hidrocarburos ante un derrame de petróleo.
Esto se debe a la relación intrínseca entre bacterias y microalgas ya que estos grupos
tienen un papel clave en los ciclos biogeoquímicos, en la productividad primaria y son la base de las...
La evaluación de la vulnerabilidad se ha convertido en una necesidad clave para
los sistemas sociales y ecológicos que enfrentan exposiciones cada vez mayores a
amenazas de origen diverso (e.g., eutrofización, acidificación, contaminación petroquímica). A partir de esta necesidad, han surgido varias propuestas metodológicas, de diversas disciplinas...
This study investigates the community composition, structure, and abundance of sulfate-reducing microorganisms (SRM) in surficial sediments of the Northwestern Gulf of Mexico (NWGoM) along a bathymetric gradient. For these purposes, Illumina sequencing and quantitative PCR (qPCR) of the dissimilatory sulfite reductase gene beta subunit (dsrB gene)...
Mollusk diversity in coastal areas of the Gulf of Mexico (GOM) has been studied extensively, but this is not the case for deep-water habitats. We present the first quantitative characterization of mollusks in shallow and deep waters of the Perdido Fold Belt. The data came from two research cruises completed in 2017. Sediment samples were collected...
Mollusk diversity in coastal areas of the Gulf of Mexico (GOM) has been studied extensively, but this is not the case for deep-water habitats. We present the first quantitative characterization of mollusks in shallow and deep waters of the Perdido Fold Belt. The data came from two research cruises completed in 2017. Sediment samples were collected...
En este capítulo se presenta los resultados de la evaluación de la vulnerabilidad de A. lineatus y S. ocellatus a petróleo en función de la concentración y del tiempo de exposición. El uso de curvas temporales de vulnerabilidad permitió cuantificar en una escala única los efectos de los contaminantes del petróleo sobre los diferentes niveles de org...
Shelf and deep-water soft-bottom macrofauna were explored in the western Gulf of Mexico in terms of species and functional trait assemblages. Their variation was analysed as functions of depth and time, and the relationship with sea-bottom environmental conditions was examined to disentangle their association with potential environmental drivers. F...
En este tomo se presentó información de la evaluación de vulnerabilidad ecológica
de ecosistemas marinos y sus componentes en el golfo de México, además
de haber cuantificado la intensidad de interacción espacial y posibles impactos potenciales
de derrames de petróleo sobre estos ecosistemas desde un conjunto de pozos propuestos por Petróleos Mexic...
El golfo de México (GM) es uno de los Grandes Ecosistemas del mundo, que
brinda servicios ambientales relacionados con la producción de alimento
por la pesca y acuicultura, turismo, vías náuticas, y que es considerado como una de
las regiones de mayor producción de petróleo del mundo (Botello, 2005; Murawski et al., 2019). Las actividades relaciona...
A fundamental understanding of the impact of petrochemicals and other stressors on marine biodiversity is critical for effective management, restoration, recovery, and mitigation initiatives. As species-specific information on levels of petrochemical exposure and toxicological response are lacking for the majority of marine species, a trait-based a...
La aproximación aquí implementada permite
la incorporación de objetos de interés adicionales
para enriquecer la representatividad del grado
de vulnerabilidad de especies, poblaciones y comunidades
en el golfo de México. Los resultados que se
presentan son una plataforma que incorpora datos
de línea base con distintos niveles de organización
de la b...
Amphipod species collected during three oceanographic campaigns (2010–2012) were analyzed to describe their spatiotemporal community distribution trends and their relationships with bottom water and sediment variables. The results show that the species richness (117 spp.) did not reach its maximum value according to the species accumulation curve (...
Different hypotheses related to the regional-scale configuration of the Yucatan Continental Shelf (YCS) between the Gulf of Mexico (GoM) and the Caribbean Sea have been proposed. Hypotheses regarding its regional boundaries include:(i) an ecoregional boundary at Catoche Cape, dividing the Western Caribbean and the Southern GoM ecoregions; and (ii)a...
The southern Gulf of Mexico (sGoM) is highly susceptible to receiving environmental impacts due to the recent increase in oil-related activities. In this study, we assessed the changes in the bacterioplankton community structure caused by a simulated oil spill at mesocosms scale. The 16S rRNA gene sequencing analysis indicated that the initial bact...
This report describes the third Gulf of Mexico Ecosystems and Carbon Cycle (GOMECC-3) cruise on board the R/V Ronald H. Brown from Key West, FL into the Gulf of Mexico and then around the coastal waters of the Gulf of Mexico in a counter-clockwise direction. The cruise took place from July 18–August 21, 2017. The effort was in support of the coasta...
Here, we show a spatially explicit assessment of the vulnerability of benthic communities from the Yucatan Continental Shelf (YCS) to multiple pressures: fishing activities, shipping traffic, storms and hurricanes, and marine acidification. The vulnerability index was obtained by combining benthic biological traits with exposure and sensitivity and...
Background
We assessed metrics of the metazoan parasite infracommunities of the dusky flounder (Syacium papillosum) as indicators of aquatic environmental health of the Yucatan Shelf (YS) prior to oil extraction. We sampled the dusky flounder and its parasites along the YS, mostly during the 2015 north wind season (November–April). Our aims were: (...
Mesocosms are an alternative to in situ ocean environmental studies which are very difficult to implement due to the challenges that the aquatic environment impose. The design of a mesocosm should consider as many variables as possible of the ecosystem to be studied, in order to obtain results that are similar to those that would be obtained in the...
Gammaropsis elvirae sp. nov. is described and illustrated here, as a new species of the family Photidae Boeck, 1871, occurring on sites widely distributed in the soft-sediment habitats from the Yucatan shelf, southern Gulf of Mexico. This new species differs from all other congeners by a unique set of characteristics: lateral cephalic lobes rounded...
INTRODUCCIÓN Los ecosistemas marinos están amenazadas a nivel global por múltiples estresores de origen humano que actúan a diferentes escalas ecológicas con la probabilidad de ocasionar cambios en la estructura y función de los ecosistemas costeros y marinos (Boldt et al., 2014). La cuantificación de estas amenazas necesita del uso de nuevas aprox...
Diversity patterns of the deep-sea megafauna in the Caribbean Basin and the Guiana ecoregion were analyzed in order to test the hypothesis of species richness variation as a function of depth and the hypothesis of non-differences between ecoregions by analyzing spatial patterns of five taxa and a merged assemblage. Collections of five taxa (corals,...
Taxa included in the present study.
(XLSX)
Chao2 estimation of species richness and 95% confidence intervals (thin lines) for the upper continental shelf (red) and continental slope (blue) for each taxon and merged assemblage at the Caribbean Basin and Guiana ecoregion.
(DOCX)
This supplementary material includes detailed information about amphipod species collected in Alacranes Reef, such as morphological features, geographical distribution, new records, and invasive status.
The diversity and distribution of benthic amphipods has been explored in the Alacranes Reef, which is the largest coral reef ecosystem in the Gulf of Mexico. New insights into species richness, spatial distribution and extension of geographical ranges are presented by using data from published records and field surveys. A total of 117 species have...
Background
Alacranes Reef was declared as a National Marine Park in 1994. Since then, many efforts have been made to inventory its biodiversity. However, groups such as amphipods have been underestimated or not considered when benthic invertebrates were inventoried. Here we present a dataset that contributes to the knowledge of benthic amphipods (C...
The rise in sea level may affect 50 % of the world population that lives on the seashores, including vast areas of the states of Tabasco and Campeche, Mexico. The objective of the study was to identify the vulnerability of the coast of Tabasco and Campeche to flooding by sea level rise, based on geomorphologic indicators. With a geopedological appr...
In the Mexican state of Campeche, the marine littoral portion of Los Petenes Biosphere Reserve (RBLP), integrates several ecological components such as the fish community as the more diverse and abundant aquatic macrofauna. The coastal marine fish structure and function is conditioned by the comprehension of the environmental dynamic in different s...
Here is presented some spatiotemporal distributional trends of benthic macrofauna (amphipods) in the Yucatan continental shelf, southern Gulf of Mexico.
RESUMEN La diversidad y riqueza de especies de macro invertebrados que conforman la comunidad bentónica es responsable de la gran variabilidad de funciones ecosistémicas de las lagunas costeras que van desde la retención, remoción, transformación biogeoquímica de nutrientes, el control de la densidad de pobla-ciones y el tamaño de presas y predador...
The Marine Spatial Planning (MSP) has been adopted in Mexico as an environmental planning instrument attending coastal-sea issues and guiding the activities carried out on those realms. However, its application is still a challenge for the government, who has requested scientists to actively participate in developing proposals in order to promote e...
El Ordenamiento Ecológico Marino (OEM) ha sido adoptado en México como el instrumento de política ambiental que atiende las problemáticas marinas y da certidumbre a las actividades inherentes que ahí se desarrollan. Sin embargo, su ejecución aún representa un desafío para el gobierno, quién ha solicitado la participación activa del gremio científic...
This study presents an Ex-Post Facto analysis of diseases of wild juvenile and adults of Litopenaeus setiferus collected from a field survey at the Natural Protected Area of Terminos lagoon, southern Mexico. The objective of the present approach was to determine if sampling site and/or shrimp age were contributing risk factors for disease between j...
La calidad del agua es una condición que depende de factores naturales y antrópicos
ya que viene determinada por la erosión del substrato mineral, los procesos
atmosféricos de evapotranspiración y sedimentación de lodos y sales, la lixiviación
natural de la materia orgánica y los nutrientes del suelo, por los factores hidrológicos
y los procesos bi...
Diez meses de análisis de las enfermedades en especímenes silvestres de Litopenaeus setiferus en el Sur del Golfo de México. The development of shrimp aquaculture in Mexican coasts of the Gulf of Mexico began to be explored using the Pacific white shrimp Litopenaeus vannamei in the mid 90´s. Many concerns over the risk of disease transmission to th...
The development of shrimp aquaculture in Mexican coasts of the Gulf of Mexico began to be explored using the Pacific white shrimp Litopenaeus vannamei in the mid 90's. Many concerns over the risk of disease transmission to the economically important native penaeids, have been the main deterrent for the aquaculture of L. vannamei in the region. Conc...
SUMMARY The aim of the present investigation was to determine whether temporal variation in environmental factors such as rainfall or temperature influence long-term fluctuations in the prevalence and mean abundance of the nematode Mexiconema cichlasomae in the cichlid fish Cichlasoma uropthalmus and its crustacean intermediate host, Argulus yucata...
The goals of this paper were to determine whether the helminth communities of the blackcheek tonguefish, Symphurus plagiusa, exhibit a spatial structure and, if so, to determine the relative influence of selected environmental and spatial variables. The parasite communities of tonguefish and environmental data (e.g., temperature, salinity, oxygen)...
El pepino de mar es un recurso que habita en la costa de Campeche y que ha sido poco estudiado. Ya existen indicios de una pesca clandestina por lo que es necesaria y urgen- te la determinación del potencial para su aprovechamiento, de manera que su uso este regulado para garantizar su conservación. En este sentido, surge de la necesidad de la saga...
Las poblaciones de pepino de mar en México son
potencialmente explotables, pero también particularmente
vulnerables. La fragilidad de sus especies generalmente
sucumbe ante la intensa presión pesquera
originada por su alto valor comercial en el Oriente.
Este esquema de bonanza efímera se ha padecido
en las costas de Baja California y parece empezar...
El calentamiento climático global (CCG) y sus efectos potenciales sobre la biodiversidad y por ende sobre el bienestar humano es uno de los fenómenos que ha recibido la mayor atención en todos los medios
de comunicación y por lo tanto ha llegado a tener un impacto mediático considerable sobre todos los
estratos sociales. Esto ha causado que mucha...
Rainfall serves as a powerful driving force, shifting temporal abundance and prevalence patterns in parasites and free-living aquatic organisms in tropical environments. However, there is a lack of sound evidence showing the temporal scales at which rainfall influences infection parameters of parasites in the tropics either directly by affecting th...
This review assesses the usefulness of parasites as bioindicators of environmental impact. Relevant studies published in the past decade were compiled; factorial meta-analysis demonstrated significant effects and interactions between parasite levels and the presence and concentration of various pollutants and/or environmental stressors. These effec...
The suitability of using helminth communities as bioindicators of environmental quality of the Yucatan coastal lagoons status was tested on the checkered puffer (Spheroides testudineus) in four coastal lagoons along the Yucatan coast. The concentration of chemical pollutants in sediments, water quality parameters, helminth infracommunity characteri...
Aquatic habitats in some tropical coastal environments can change seasonally, causing changes in the community structure of the benthic macrofauna. A tropical coastal lagoon, the Celestun lagoon, on the north-west Yucatan peninsula, was sampled seasonally and faunal, water and sediment data were compared with conditions during the 1994–1995 weather...
Little information currently exists on spatial and temporal benthic community variations in tropical coastal lagoons. Here, the benthic community response to habitat variation in the Celestun coastal lagoon, northwest Yucatan peninsula, was seasonally examined during the 1994–1995 climatic cycle into a grid of 12 sampling sites distributed along th...
For the last years scale issues have contributed to the understanding of the complex organization of communities. In practice however the choice of observational scales remains one of the major issues of discussion among ecologists. Case studies showing the implications of tuning up the observational scales are still needed to illustrate the crucia...
We have tested both the usefulness of high-resolution digital photography for data acquisition and digital image analysis, by non-supervised classification and high pass filter, for recognition and abundance estimation of benthic intertidal organisms. These digital tools were compared with visual scan and photo quadrat conventional methods. The com...
The influence of substratum topographic heterogeneity and complexity on the settlement of a tropical epibenthic subtidal assemblage was examined using artificial substrata offering a combination of different heterogeneity scales. A 4 week experiment was carried out in March 1999 using eight types of dark grey polyvinylchloride (PVC) panels immersed...
