Community structure and diversity of marine ascomycetes from coastal beaches of the southern Gulf of Mexico

2013 ◽  
Vol 6 (6) ◽  
pp. 513-521 ◽  
Author(s):  
Patricia Velez ◽  
María C. González ◽  
Edmundo Rosique-Gil ◽  
Joaquín Cifuentes ◽  
María del Rocío Reyes-Montes ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Southern Gulf Of Mexico

scholarly journals Changes in the Bacterioplankton Community Structure from Southern Gulf of Mexico During a Simulated Crude Oil Spill at Mesocosm Scale

2019 ◽  
Vol 7 (10) ◽  
pp. 441 ◽  
Author(s):  
Sonia S. Valencia-Agami ◽  
Daniel Cerqueda-García ◽  
Sébastien Putzeys ◽  
María Magdalena Uribe-Flores ◽  
Norberto Ulises García-Cruz ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Crude Oil ◽  
Oil Spill ◽  
Initial Time ◽  
P Value ◽  
Sequencing Analysis ◽  
Hydrocarbonoclastic Bacteria ◽  
Bacterioplankton Community ◽  
Southern Gulf Of Mexico

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 bacterial community was mainly represented by Gamma-proteobacteria, Alpha-proteobacteria, Flavobacteriia, and Cyanobacteria. The hydrocarbon degradation activity, measured as the number of culturable hydrocarbonoclastic bacteria (CHB) and by the copy number of the alkB gene, was relatively low at the beginning of the experiment. However, after four days, the hydrocarbonoclastic activity reached its maximum values and was accompanied by increases in the relative abundance of the well-known hydrocarbonoclastic Alteromonas. At the end of the experiment, the diversity was restored to similar values as those observed in the initial time, although the community structure and composition were clearly different, where Marivita, Pseudohongiella, and Oleibacter were detected to have differential abundances on days eight–14. These changes were related with total nitrogen (p value = 0.030 and r2 = 0.22) and polycyclic aromatic hydrocarbons (p value = 0.048 and r2 = 0.25), according to PERMANOVA. The results of this study contribute to the understanding of the potential response of the bacterioplankton from sGoM to crude oil spills.

scholarly journals Seasonal variability of near-surface zooplankton community structure in the southern Gulf of Mexico

2020 ◽  
Vol 48 (4) ◽  
pp. 649-661
Author(s):  
Leonardo Cruz-Rosado ◽  
Wilfrido M. Contreras-Sánchez ◽  
Ulises Hernández-Vidal ◽  
Jaime Gómez-Gutiérrez ◽  
María de Jesús Contreras-García ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Zooplankton Community ◽  
River System ◽  
Dry Season ◽  
Zooplankton Community Structure ◽  
Near Surface ◽  
Southern Gulf Of Mexico ◽  
Summer Storm ◽  
Taxonomic Groups

The zooplankton taxonomic group composition was analyzed in a known spawning area for snooks of the family Centropomidae during March 2011-February 2012 near the González River's mouth, a tributary of the Grijalva-Usumacinta River system, discharging into the southern Gulf of Mexico. Zooplankton was collected near the surface using three distinct zooplankton nets (20, 64, and 120 μm). Sixteen zooplankton taxonomic groups were collected between the three nets. Copepoda (76.9%), Trematoda (6.7%), Bivalvia (4.6%), and Chaetognatha (Sagittoidea 4.3%) numerically dominated zooplankton community structure. The 120 and 64 μm nets collected the highest diversity of zooplankton (15 taxa). Zooplankton was more abundant during June-October (summer storm season). They associated with lower salinities (due to the increase in the discharge volume of the Grijalva-Usumacinta River system) and higher regional primary productivity than observed during the rest of the year (March-May, dry season, and November-February, winter storm season). The highest peak of zooplankton abundance was found in November during the beginning of winter storms. Nine taxonomic groups were observed frequently and abundantly during the summer storm season, while only five taxonomic groups were abundant during the dry season.

scholarly journals Helminth Parasites of Scorpaena brasiliensis and S. plumieri (Perciformes: Scorpaenidae) from reefs of Veracruz, Mexico, Southern Gulf of Mexico

2018 ◽  
Author(s):  
Jesus Montoya-Mendoza ◽  
Sandra Edith Badillo-López ◽  
Isabel Araceli Amaro-Espejo ◽  
María del Refugio Castañeda-Chávez ◽  
Fabiola Lango-Reynoso ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Parasite Community ◽  
Common Species ◽  
Shannon Index ◽  
Helminth Parasites ◽  
Helminth Community ◽  
Parasitic Helminths ◽  
Southern Gulf Of Mexico ◽  
Community Component

Both S. brasiliensis and S. plumieri are relevant species in reef systems, but little is known about their parasitic helminths and community structure. This work describes such community in terms of species richness and diversity. A helminthological study was conducted on 33 specimens of S. brasiliensis and 36 of S. plumieri, captured in the Pájaros and Cabezo Reefs, in the Veracruz Reef System National Park (VRSNP), Ver., Mexico. The helminth community structure was analyzed in both hosts. A total of 10 parasitic species was registered for S. brasiliensis (trematodes, 5; nematodes, 3; cestodes, 1; acanthocephals, 1). S. plumieri hosted 11 species (trematodes, 4; nematodes, 4; monogeneans, 1; cestodes, 1; acanthocephals, 1), with 8 common species. Overall, parasites had prevalences < 20%, as Pseudocapillaria (Icthyocapillaria) sp., with 18.2% and 19.4% in S. brasiliensis and S. plumieri, respectively. Community component richness for S. brasiliensis was S=10, with Shannon index diversity value of H’=2.08. For S. plumieri, such values were of S=11 and H’=1.91. The richness and diversity in the components community and infracommunity of parasitic helminths for both hosts are lower than in other parasite community of marine fish Southern Gulf of Mexico.

Community structure and distribution of benthic Bacteria and Archaea in a stratified coastal lagoon in the Southern Gulf of Mexico

2019 ◽  
Vol 230 ◽  
pp. 106433
Author(s):  
Santiago Cadena ◽  
M. Leopoldina Aguirre-Macedo ◽  
Daniel Cerqueda-García ◽  
Francisco J. Cervantes ◽  
Jorge A. Herrera-Silveira ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Coastal Lagoon ◽  
Benthic Bacteria ◽  
Southern Gulf Of Mexico

scholarly journals Helminth Parasites of Scorpaena brasiliensis and S. plumieri (Perciformes: Scorpaenidae) from reefs of Veracruz, Mexico, Southern Gulf of Mexico

2018 ◽  
Author(s):  
Jesus Montoya-Mendoza ◽  
Sandra Edith Badillo-López ◽  
Isabel Araceli Amaro-Espejo ◽  
María del Refugio Castañeda-Chávez ◽  
Fabiola Lango-Reynoso ◽  
...  
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Parasite Community ◽  
Common Species ◽  
Shannon Index ◽  
Helminth Parasites ◽  
Helminth Community ◽  
Parasitic Helminths ◽  
Southern Gulf Of Mexico ◽  
Community Component

Both S. brasiliensis and S. plumieri are relevant species in reef systems, but little is known about their parasitic helminths and community structure. This work describes such community in terms of species richness and diversity. A helminthological study was conducted on 33 specimens of S. brasiliensis and 36 of S. plumieri, captured in the Pájaros and Cabezo Reefs, in the Veracruz Reef System National Park (VRSNP), Ver., Mexico. The helminth community structure was analyzed in both hosts. A total of 10 parasitic species was registered for S. brasiliensis (trematodes, 5; nematodes, 3; cestodes, 1; acanthocephals, 1). S. plumieri hosted 11 species (trematodes, 4; nematodes, 4; monogeneans, 1; cestodes, 1; acanthocephals, 1), with 8 common species. Overall, parasites had prevalences < 20%, as Pseudocapillaria (Icthyocapillaria) sp., with 18.2% and 19.4% in S. brasiliensis and S. plumieri, respectively. Community component richness for S. brasiliensis was S=10, with Shannon index diversity value of H’=2.08. For S. plumieri, such values were of S=11 and H’=1.91. The richness and diversity in the components community and infracommunity of parasitic helminths for both hosts are lower than in other parasite community of marine fish Southern Gulf of Mexico.

scholarly journals Critical In-Water Habitats for Post-Nesting Sea Turtles from the Southern Gulf of Mexico

2021 ◽  
Vol 9 (8) ◽  
pp. 793
Author(s):  
Abigail Uribe-Martínez ◽  
María de los Angeles Liceaga-Correa ◽  
Eduardo Cuevas
Keyword(s):  
Gulf Of Mexico ◽  
Marine Ecosystem ◽  
Satellite Telemetry ◽  
Marine Turtle ◽  
Home Ranges ◽  
The Bahamas ◽  
Turtle Species ◽  
Southern Gulf Of Mexico ◽  
Large Marine Ecosystem ◽  
Physical Features

Marine turtles are globally endangered species that spend more than 95% of their life cycle in in-water habitats. Nevertheless, most of the conservation, recovery and research efforts have targeted the on-land habitats, due to their easier access, where adult females lay their eggs. Targeting the large knowledge gaps on the in-water critical habitats of turtles, particularly in the Large Marine Ecosystem Gulf of Mexico, is crucial for their conservation and recovery in the long term. We used satellite telemetry to track 85 nesting females from their beaches after they nested to identify their feeding and residency habitats, their migratory corridors and to describe the context for those areas. We delimited major migratory corridors in the southern Gulf of Mexico and West Caribbean and described physical features of internesting and feeding home ranges located mainly around the Yucatan Peninsula and Veracruz, Mexico. We also contributed by describing general aggregation and movement patterns for the four marine turtle species in the Atlantic, expanding the knowledge of the studied species. Several tracked individuals emigrated from the Gulf of Mexico to as far as Nicaragua, Honduras, and the Bahamas. This information is critical for identifying gaps in marine protection and for deciphering the spatial connectivity in large ocean basins, and it provides an opportunity to assess potential impacts on marine turtle populations and their habitats.

scholarly journals Ant community structure and response to disturbances on coastal dunes of Gulf of Mexico

2014 ◽  
Vol 19 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Xuan Chen ◽  
Benjamin Adams ◽  
Cody Bergeron ◽  
Alexander Sabo ◽  
Linda Hooper-Bùi
Keyword(s):  
Community Structure ◽  
Gulf Of Mexico ◽  
Coastal Dunes ◽  
Ant Community ◽  
Ant Community Structure
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