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288 resultados encontrados para: TEMA: Golfo de México
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1.
Libro
Catálogo de aves en peligo de extinción de las áreas naturales protegidas de la región Frontera Sur, Istmo y Pacífico Sur
Distrito Federal, México : Comisión Nacional de Áreas Naturales Protegidas , s.f.
Clasificación: C CH/598.2097275 / C3
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
ECO010018651 (Disponible)
Disponibles para prestamo: 1

2.
Libro
La pesca ilegal e irregular en México: una barrera a la competitividad
[Distrito Federal, México] : Centro de Colaboración Cívica :: Comunidad y Biodiversidad :: Environmental Defense Fund de México :: Fundación Idea :: Sociedad de Historia Natural Niparajá , s.f.
Clasificación: F/333.956097 / P4
Bibliotecas: Villahermosa
Cerrar
SIBE Villahermosa
ECO050006288 (Disponible)
Disponibles para prestamo: 1
PDF
Índice

Aclaración
Resumen Ejecutivo
I Introducción
La pesca en México: un sector en crisis
Un sector amenazado
La oportunidad de un cambio
II. Principales riesgos para las pesquerías mexicanas
La pesca irregular
Impactos de la pesca irregular
México: particularmente vulnerable a la pesca irregular
III. Causas de la pesca irregular
Factores económicos
Factores sociales
Falta de participación pública
Gasto público inadecuado
Falta de vigilancia
IV. Tamaño de la pesca irregular
Tamaño de la pesca ilegal
Diferencias entre producción y consumo
Consumo por persona
Percepción de expertos
V. ¿Por qué es importante regularizar la pesca en el Golfo de California?
Relevancia ambiental de la pesca en el GC
Impacto de mayor pesca en las 7 pesquerías del golfo de California
Impactos sobre otras especies (relaciones tróficas)
Riesgo comercial
VI ¿Qué se ha hecho en México y qué falta hacer para regularizar la pesca?
Avances
Hay razones para el optimismo
¿Qué falta por hacer?
VII. Bibliografía
VIII. Anexos
Anexo 1: Municipios colindantes al golfo de California
Anexo 2: Cuestionario a 25 expertos
Anexo 3: Producción y consumo para México en toneladas (FAO)
Anexo 4: Modelos para estimar impacto en pesquerías del golfo de California
Anexo 5: Modelo para estimar impactos ecosistémicos por aumentos en pesca de 7 especies analizadas en el golfo de California
Anexo 6: Instrumentos de control por pesquería y estatus de las mismas
Anexo 7: Distribución geográfica de especies comerciales en México


3.
Artículo
*Solicítelo con su bibliotecario/a
Influence of bottom environment conditions and hydrographic variability on spatiotemporal trends of macrofaunal amphipods on the Yucatan continental shelf
Paz Ríos, Carlos Enrique (autor) ; Pech Pool, Daniel Guadalupe (autor) ; Mariño Tapia, Ismael (autor) ; Simões, Nuno (autor) ;
Disponible en línea
Contenido en: Continental Shelf Research Volumen 198, artículo número 104098 (July 2020), p. 1-11 ISSN: 0278-4343
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

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 (up to 187 spp.). Multivariate analyses and constrained ordinations techniques detected three main amphipod assemblages along the longitudinal gradient (i.e., Western Caribbean, Mid-Yucatan, and West-Yucatan) and during two temporal hydrographic scenarios (i.e., upwelling in 2010–2011 and non- upwelling in 2012). In 2010–2011, low values in species richness and abundance from the Western Caribbean and eastern Mid-Yucatan assemblages were associated with relatively low bottom-water temperatures from the upwelling systems. In 2012, the absence of upwelling and the occurrence of a warm-core anticyclonic eddy seemed to cause an increase in species richness and abundance in the three assemblages. The hydrographic variability and sediment characteristics are suggested as the major environmental drivers that shapes the soft- bottom amphipod community structure and diversity in the Yucatan continental shelf.


4.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Is captive breeding a priority for manatee conservation in Mexico?
Ortega Argueta, Alejandro (autor) ; Castelblanco Martínez, Delma Nataly (autora) ;
Disponible en línea
Contenido en: Oryx Volume 54, Issue 1 (January 2020), p. 110-117 ISSN: 1365-3008
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The Endangered Antillean manatee Trichechus manatus manatus is one of the most threatened aquatic mammal species in Mexico and the wider Caribbean region. The decline of this subspecies is mainly a result of historical exploitation and the impact of current coastal development. The conservation strategies adopted for the Antillean manatee include habitat protection, reduction of the most severe threats, and the rescue of stranded, orphaned or injured individuals and their management in captivity. This latter strategy has produced positive outcomes in some countries but has been the subject of controversy in others, including Mexico. We analyse the benefits and challenges associated with the management of captive manatees in Mexico, and the consequences of a lack of government policy and strategy for the post-rehabilitation release of individuals. We describe the evolution of this controversy from 1997-2017 in Mexico, analyse the consequences and implications for the conservation of the species, and propose an integrated management strategy that could address the issues raised. Although this strategy has been developed in the context of Mexico, it is applicable to management of this species across the Caribbean region.


5.
Tesis - Maestría
*En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-Chetumal
Distribución actual y potencial de Swietenia macrophylla King (caoba) en tres escenarios de cambio climático en México / Gregorio Mario Ramírez Magil
Ramírez Magil, Gregorio Mario ; Navarro Martínez, María Angélica (directora) ; Botello, Francisco (codirector) ; García Ortega, Martha (asesora) ;
Chetumal, Quintana Roo, México : El Colegio de la Frontera Sur , 2019
Clasificación: TE/634.973770972 / R3
Nota: En proceso técnico. Solicítelo con el bibliotecario(a) de SIBE-Chetumal
PDF
Índice | Resumen en: Español |
Resumen en español

Los modelos de nicho ecológico (MNE) permiten determinar la idoneidad de hábitat de las especies vegetales o animales. El objetivo del presente trabajo fue determinar la idoneidad de hábitat de la caoba Swietenia macrophylla King, en tres escenarios de cambio climático en México. Para la modelación se empleó el algoritmo MaxEnt. Como fuente primaria se utilizaron los registros de caoba en el Inventario Nacional Forestal 2009-2014. Los predictores fueron los raster de 19 variables bioclimáticas de las interpolaciones de datos observados y representativos de 1960-1990, 2050 (promedio de 2041 a 2060) y 2070 (promedio de 2061-2080) de Worldclim, con una resolución espacial aproximada a 1 km2 y el raster de edafología de la CONABIO con una resolución espacial de 90 m2. Para el escenario 2050 se proyecta una pérdida de hábitat idóneo del 39.79 %; mientras que para el escenario 2070 esta es de 12.89 % respecto al escenario 2050. Se concluye que en los tres escenarios las condiciones de hábitat idóneo permanecerán principalmente en los estados de Campeche y Quintana Roo, siendo este último el que conservará cerca del 50% del hábitat idóneo. Los resultados contribuyen a la generación de estrategias de conservación, aprovechamiento y mitigación del impacto del cambio climático que aseguren la permanencia de la caoba y los ecosistemas en los que habita.

Índice

1. Resumen y palabras clave
2. Introducción
2.1. Descripción general de la especie
2.2. Importancia ecológica, económica y cultural
2.3. Modelos de distribución
3. Artículo científico sometido para su publicación a la revista Madera y Bosques
4. Conclusiones generales
5. Literatura citada


6.
Artículo - Nota científica con arbitraje
Extensión del ámbito de distribución de Hypoplectrus ecosur (Teleostei: Serranidae) en el Golfo de México
Chiappa Carrara, Xavier ; Aguilar Santana, Fernando A. (coaut.) ;
Contenido en: Revista Mexicana de Biodiversidad Vol. 90, e901814 (abril 2019), p. 1-4 ISSN: 1870-3453
PDF PDF
Resumen en: Español | Inglés |
Resumen en español

Se documenta la presencia de Hypoplectrus ecosur en 2 localidades de la costa noroccidental de la península de Yucatán, México. La evidencia que se presenta en este trabajo permite ampliar el ámbito de distribución geográfico de esta especie hacia aguas del golfo de México. Hasta este reporte, la presencia de esta especie solo había sido confirmada en el extremo noreste de la península de Yucatán, en aguas del mar Caribe.

Resumen en inglés

The presence of Hypoplectrus ecosur off the northwest coast of the Yucatán Peninsula is herein documented. The evidence provided in this contribution allows to extend the distributional range of the species to the Gulf of Mexico. Until now, it had only been confirmed in the northeastern tip of the Peninsula within Caribbean waters.


7.
Artículo
*Solicítelo con su bibliotecario/a
First records of an egg mass and a paralarva of Thysanoteuthis rhombus (Cephalopoda: Thysanoteuthidae) in the Northeastern Tropical Pacific
De Silva Dávila, Roxana ; Avendaño Ibarra, Raymundo (coaut.) ; Palomares García, Ricardo (coaut.) ; Markaida Aburto, Unai (coaut.) ;
Contenido en: Pacific Science Vol. 73, no. 4 (December 2019), p. 475-491 ISSN: 1534-6188
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

An egg mass fragment and one paralarva of the squid Thysanoteuthis rhombus found in the Northeastern Tropical Pacific and Gulf of California, Mexico are the first evidence of reproduction of this species in the region. The egg mass fragment was in the disintegration process and contained 30,360 premature hatchlings (96.2%) and 1,192 eggs (3.8%) at different developmental stages. Head chromatophore patterns, buccal crown pigmentation, arm and tentacles indexes, and other morphological characteristics complement previous descriptions of T. rhombus paralarvae. The zooplanktonic community associated with the egg mass was dominated by six species of predatory copepods of the genus Labidocera, Pontella, Oncaea, and Corycaeus which might have actively colonized the egg mass to feed upon the eggs and hatchlings.


8.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Parasitic nematodes in Snappers (Perciformes: Lutjanidae) from the Southern Gulf of Mexico and Mexican Caribbean
Hernández Olascoaga, Arturo (autor) ; González Solís, David (autor) ;
Contenido en: Journal of Parasitology Volumen 105, número 5 (October 2019), páginas 697-703 ISSN: 0022-3395
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Snappers from the southern Gulf of Mexico (SGM) and Mexican Caribbean (CAR) were examined for parasitic nematodes to determine their richness, composition, and infection parameters (prevalence and mean intensity). From February 2016 to March 2018, 431 individuals of 8 snapper species were collected in 6 localities. In all, these fishes were parasitized by 2,275 individual nematodes belonging to 13 taxa: Terranova sp. was found in 7 of 8 host species and showed the highest prevalence (23%), while the rest had lower values (<10%). Lutjanus griseus (Linnaeus) harbored the highest species richness (10 species), followed by Lutjanus apodus (Walbaum) (8 species). Most localities were similar in terms of species richness but differed in the specific composition. Eight nematode taxa represent new host records for the family Lutjanidae (Gill), thus increasing to 22 the nematode taxa in the SGM and CAR. There is a potential risk to public health due to the presence of nematodes with zoonotic potential (as Anisakis sp.) and the habit in the region of eating raw fish (cebiche).


9.
Artículo
*Solicítelo con su bibliotecario/a
Spatial assessment of the vulnerability of benthic communities to multiple stressors in the Yucatan Continental Shelf, Gulf of Mexico
Ocaña Borrego, Frank Alberto (autor) ; Pech Pool, Daniel Guadalupe (autor) ; Simões, Nuno (autor) ; Hernández Avila, Iván (autor) ;
Contenido en: Ocean and Coastal Management Vol. 181, article number 104900 (November 2019), p. 1-9 ISSN: 0964-5691
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

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 recovery capacity; this was then represented in a spatially explicit model. Moreover, we estimated a cumulative vulnerability index using three different scenarios that were based on 1) equal weight for each vulnerability layer to each stressor, 2) results of expert consultation and 3) a linear reduction in the weight of the pressures. By comparing scenarios, the synergistic and antagonistic effects of the multiple stressors were determined. The main results showed that, independent of the considered scenario, approximately 90% of the YCS presented moderate to high vulnerability to cumulative pressures, while areas with high recovery and high potential impact on a particular stressor showed low or moderate vulnerability to the pressures. Meanwhile, areas classified as having medium impact levels and low recovery capacities of benthic fauna showed moderateto high vulnerability to the same threats. Our findings also showed that ship traffic and marine acidification were the threats that contributed to the greatest vulnerability. The paired comparison of scenarios allows for the identification of areas with higher probabilities of synergistic effects. No antagonistic effects were detected. Overall, our results constitute the first effort to understand the ecological status of the benthic communities of the YCS and their potential vulnerability to the multiple pressures they face.


10.
Artículo
Testing marine regional-scale hypotheses along the Yucatan continental shelf using soft-bottom macrofauna
Hernández Avila, Iván (autor) ; Ocaña Borrego, Frank Alberto (autor) ; Pech Pool, Daniel Guadalupe (autor) ;
Contenido en: PeerJ No. 8:e8227 (2020), p. 1-28 ISSN: 2167-8359
PDF
Resumen en: Inglés |
Resumen en inglés

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 GoMecoregions; and (ii) a boundary within the Southern GoM ecoregion at 89ºW, separating the West and Mid-Yucatan areas. We tested the hypothesis of no variation in benthic macrofaunal assemblages between regions delimited by the former boundaries using the species and functional traits of soft-bottom macrofauna. We considered that the depth and temporal environmental dynamics might interact with regional variations, generating complex benthic community patterns. The data were collected over fiveyears (2010–2012, 2015–2016) at 86 stations (N=1,017 samples, 10–270 m depth), comprising 1,327 species with 45 combinations of functional traits. The variation inspecies composition and functional trait assemblages were both consistent with the occurrence of three separate regions in the Yucatan Peninsula (West Yucatan, Mid-Yucatan and Western Caribbean). This regional configuration was consistent with changes in assemblage structure and depth zonation as well as temporal variation. Along with spatial and temporal variation, diversity diminished with depth and different regions exhibited contrasting patterns in this regard. Our results suggest that the spatialand temporal variation of soft-bottom macrofauna at YCS demonstrate the complex organization of a carbonate shelf encompassing different regions, which may represent transitional regions between the Caribbean and the GoM.