Atmospheric circulation associated with the arrival of sargassum in the Caribbean Sea.

2020 ◽  
Author(s):  
Jose Antonio Salinas ◽  
María Eugenia Maya ◽  
Constantina Hernández
Keyword(s):  
Interannual Variability ◽  
Extreme Values ◽  
Atlantic Coast ◽  
Surface Wind ◽  
Caribbean Sea ◽  
Atmospheric Conditions ◽  
Annual And Interannual Variability ◽  
The Caribbean ◽  
Extreme Winds ◽  
Central Atlantic

<p>The arrival of sargassum in a massive way generates adverse environmental, social and economic impacts. Little is known about its origin and trajectory, as well as the atmospheric and oceanic conditions under which it arrives at the Mexican coasts of the Caribbean. This poster presents a diagnosis of the seasonal, annual and interannual variability of atmospheric circulations in the Atlantic and Caribbean Sea, identifying the atmospheric conditions under which sargassum arrived on the Mexican coasts. 30 years of surface wind data from CFSR (Climate Forecast System Reanalysis) of NCAR on the Atlantic and Caribbean were analyzed, dividing the area into six areas, for each one its seasonal, annual and interannual variability was estimated, as well as its extreme values from 1989 to 2018, focusing the study on both the Caribbean Sea and the Atlantic coast of Brazil.</p><p>Once the mean, extreme winds (10th and 90th percentiles) and their correlation with the NAO (North Atlantic Oscillation) were diagnosed interannually, particular years of the recent period were analyzed: from 2010 to 2019 incorporating the wind convergence as a physical process associated with the accumulation of sargassum, surface pressure and sea surface temperature (SST) and also correlating it with the NAO index.</p><p>The results show that the atmospheric conditions for transporting sargassum along the Mexican coasts of the Caribbean are more favorable in summer than in winter, besides it, the higher extremes (90th percentile) in the Caribbean favor the transport of sargassum both in winter and in summer. However, "connectivity" with other regions (Central Atlantic) makes summer more favorable, but winter is potentially viable. The atmospheric conditions of recent extreme years are discussed: 2013 (without the arrival of sargassum), medium: 2015 and extreme 2018 (with abundant sargassum) for both summer and winter.</p>

scholarly journals Multiple new records of Gymnoscyphus ascitus Böhlke and Robins, 1970 (Perciformes: Gobiesocidae) from the western Central Atlantic

Check List ◽  
2011 ◽  
Vol 7 (5) ◽  
pp. 581 ◽  
Author(s):  
Kevin W. Conway ◽  
Heather L. Prestridge
Keyword(s):  
Deep Water ◽  
New Records ◽  
Atlantic Coast ◽  
Caribbean Sea ◽  
Type Locality ◽  
North Coast ◽  
The Caribbean ◽  
Central Atlantic

We document multiple new records for the deep-water clingfish species Gymnoscyphus ascitus Böhlke and Robins 1970, known previously from only nine specimens collected at the type locality along the Atlantic coast of the Lesser Antillean island of St. Vincent. Five additional specimens, four from the Caribbean Sea (Mexico, Cozumel) and one from the Atlantic (north coast of Cuba), are reported. 

scholarly journals Coupled Interannual Variability of Wind and Sea Surface Temperature in the Caribbean Sea and the Gulf of Mexico

2019 ◽  
Vol 32 (14) ◽  
pp. 4263-4280 ◽  
Author(s):  
Geidy Rodriguez-Vera ◽  
Rosario Romero-Centeno ◽  
Christopher L. Castro ◽  
Víctor Mendoza Castro
Keyword(s):  
Gulf Of Mexico ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Interannual Variability ◽  
North Atlantic ◽  
Caribbean Sea ◽  
Sea Surface ◽  
Coupled Modes ◽  
The Caribbean ◽  
Coupled Variability

Abstract This work describes dominant patterns of coupled interannual variability of the 10-m wind and sea surface temperature in the Caribbean Sea and the Gulf of Mexico (CS&GM) during the period 1982–2016. Using a canonical correlation analysis (CCA) between the monthly mean anomalies of these fields, four coupled variability modes are identified: the dipole (March–April), transition (May–June), interocean (July–October), and meridional-wind (November–February) modes. Results show that El Niño–Southern Oscillation (ENSO) influences almost all the CS&GM coupled modes, except the transition mode, and that the North Atlantic Oscillation (NAO) in February has a strong negative correlation with the dipole and transition modes. The antisymmetric relationships found between the dipole mode and the NAO and ENSO indices confirm previous evidence about the competing remote forcings of both teleconnection patterns on the tropical North Atlantic variability. Precipitation in the CS and adjacent oceanic and land areas is sensitive to the wind–SST coupled variability modes from June to October. These modes seem to be strongly related to the interannual variability of the midsummer drought and the meridional migration of the intertropical convergence zone in the eastern Pacific. These findings may eventually lead to improving seasonal predictability in the CS&GM and surrounding land areas.

Interannual variability of wave climate in the Caribbean Sea

2020 ◽  
Vol 70 (7) ◽  
pp. 965-976
Author(s):  
Marco J. Vega ◽  
Oscar Alvarez-Silva ◽  
Juan C. Restrepo ◽  
Juan C. Ortiz ◽  
Luis J. Otero
Keyword(s):  
Interannual Variability ◽  
Caribbean Sea ◽  
Wave Climate ◽  
The Caribbean

Sea-level trends and interannual variability in the Caribbean Sea

2013 ◽  
Vol 118 (6) ◽  
pp. 2934-2947 ◽  
Author(s):  
R. Ricardo Torres ◽  
Michael N. Tsimplis
Keyword(s):  
Interannual Variability ◽  
Sea Level ◽  
Caribbean Sea ◽  
The Caribbean

Similarity analysis of hydroid assemblages along a latitudinal gradient in the western North Atlantic

1992 ◽  
Vol 70 (6) ◽  
pp. 1078-1085 ◽  
Author(s):  
Dale R. Calder
Keyword(s):  
Chesapeake Bay ◽  
North Atlantic ◽  
Atlantic Coast ◽  
Canadian Arctic ◽  
Caribbean Sea ◽  
The United States ◽  
Middle Atlantic ◽  
Cape Hatteras ◽  
The Caribbean ◽  
The Tropics

Shallow-water (0–100 m depth) hydroid faunas reported from 26 locations along the western North Atlantic coast between the high Canadian Arctic archipelago and the Caribbean Sea were compared. Species numbers varied widely between locations, but were highest in the tropics and subtropics, lowest in arctic and subarctic waters, and intermediate in mid-latitudes. Percentages of species producing free medusae were lowest in high latitudes, intermediate in low latitudes, and highest in mid-latitudes (especially in estuaries). In a numerical analysis, similar hydroid faunas were identified at locations (i) between the high Canadian Arctic islands and the Strait of Belle Isle off western Newfoundland; (ii) between the Gulf of St. Lawrence and Chesapeake Bay; (iii) between North Carolina and southeastern Florida (south as far as St. Lucie Inlet), and including the northern Gulf of Mexico; (iv) in the Caribbean Sea, together with Dry Tortugas and the oceanic island of Bermuda. The greatest change in hydroid species composition along the coast appeared to occur around Cape Hatteras. An assemblage on the continental shelf off the middle Atlantic states of the United States appeared to be distinct because of its low hydroid diversity. Faunistically, however, its affinities were decidedly with assemblages at locations between the Gulf of St. Lawrence and Chesapeake Bay. In addition to latitudinal changes in faunal composition, dissimilarities in hydroid species assemblages were noted between certain inshore and offshore locations at comparable latitudes. Numerical classification of locations provides additional evidence for delineation of biogeographic regions along the western North Atlantic coast.

scholarly journals Coupled Interannual Variability of Wind and Sea Surface Temperature in the Caribbean Sea and the Gulf of Mexico

2020 ◽  
Author(s):  
Geidy Rodríguez-Vera ◽  
Rosario Romero-Centeno ◽  
Christopher L. Castro ◽  
Víctor Mendoza Castro
Keyword(s):  
Gulf Of Mexico ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Interannual Variability ◽  
North Atlantic ◽  
Caribbean Sea ◽  
Sea Surface ◽  
Coupled Modes ◽  
The Caribbean ◽  
Coupled Variability

<p>This work describes dominant patterns of coupled interannual variability of the 10-m wind and sea surface temperature in the Caribbean Sea and the Gulf of Mexico (CS&GM) during the period 1982–2016. Using a canonical correlation analysis (CCA) between the monthly mean anomalies of these fields, four coupled variability modes are identified: the dipole (March–April), transition (May–June), interocean (July–October), and meridional-wind (November–February) modes. Results show that El Niño–Southern Oscillation (ENSO) influences almost all the CS&GM coupled modes, except the transition mode, and that the North Atlantic Oscillation (NAO) in February has a strong negative correlation with the dipole and transition modes. The antisymmetric relationships found between the dipole mode and the NAO and ENSO indices confirm previous evidence about the competing remote forcings of both teleconnection patterns on the tropical North Atlantic variability. Precipitation in the CS and adjacent oceanic and land areas is sensitive to the wind–SST coupled variability modes from June to October. These modes seem to be strongly related to the interannual variability of the midsummer drought and the meridional migration of the intertropical convergence zone in the eastern Pacific. These findings may eventually lead to improving seasonal predictability in the CS&GM and surrounding land areas.</p>

scholarly journals An old taxonomic dilemma: the identity of the western south Atlantic lebranche mullet (Teleostei: Perciformes: Mugilidae)

Zootaxa ◽  
2010 ◽  
Vol 2519 (1) ◽  
pp. 59 ◽  
Author(s):  
NAÉRCIO A. MENEZES ◽  
CLÁUDIO DE OLIVEIRA ◽  
MAURO NIRCHIO
Keyword(s):  
South America ◽  
North Atlantic ◽  
Atlantic Coast ◽  
Caribbean Sea ◽  
Molecular Data ◽  
South Atlantic ◽  
Morphometric Data ◽  
Type Specimens ◽  
The Caribbean ◽  
Combined Data

The identification of the lebranche mullet in the western south Atlantic has long been problematical. In most recent works either Mugil liza Valenciennes and M. platanus Günther, 1880 or M. liza and M. cephalus Linnaeus, 1758 were recognized from the region and more rarely the occurrence of only one species has been proposed but without sufficient morphological, biochemical or molecular data to allow the designation of the taxonomically appropriate name. Analysis of meristic and morphometric data taken from samples collected from Venezuela to Argentina, clearly indicates that there is only one species of lebranche mullet in the Caribbean Sea region and the Atlantic coast of South America and that Mugil liza is the appropriate name. The comparison of the combined data from all the samples of M. liza with the data taken from one sample of M. cephalus that originated in the Mediterranean, the possible locality from which type specimens were collected (Eschmeyer and Fricke, 2009), revealed significant differences indicating that they are different species. It is also suggested that individuals from the western north Atlantic identified as M. cephalus might represent a population of M. liza in this region.

Sign in / Sign up

Export Citation Format

Share Document