scholarly journals LOS ARRECIFES DE LA ISLA DE SAN ANDRÉS (MAR CARIBE, COLOMBIA)

2016 ◽  
Vol 7 ◽  
Author(s):  
Jörn Geister
Keyword(s):  
Wave Energy ◽  
Maximum Degree ◽  
Caribbean Sea ◽  
High Energy ◽  
Reef Crest ◽  
Acropora Palmata ◽  
Reef Complex ◽  
Western Caribbean ◽  
The Caribbean ◽  
San Andres

The windward reef complex NE and E of San Andrés Island is briefly described in terms of submarine topography, sediments and the distribution of corals and other benthonic organisms. The breaker zone of the San Andrés barrier and other exposed Western Caribbean reefs characteristically exhibits a profuse growth consisting almost exclusively of Millepora. In this respect they are different from most other described West Indian reef localities, where Acropora palmata is the dominating species in this part of the reef. The replacement of Acropora palmata by Millepora is interpreted as an adaptation of the reef crest community to high energy environments due to long swell prevailing at the Western end of the Caribbean Sea. A few short reef sections exposed to the maximum degree of wave energy show conspicuous algal ridges.

scholarly journals Diversity of Siphonophora (Cnidaria: Hydrozoa) in the Western Caribbean Sea: new records from deep-water trawls

Zootaxa ◽  
2009 ◽  
Vol 2095 (1) ◽  
pp. 60-68 ◽  
Author(s):  
REBECA GASCA
Keyword(s):  
Deep Water ◽  
New Records ◽  
Caribbean Sea ◽  
Relative Increase ◽  
Tropical Atlantic ◽  
Atlantic Region ◽  
Surface Samples ◽  
Mexican Caribbean ◽  
Western Caribbean ◽  
The Caribbean

Siphonophores are one of the least known gelatinous zooplankters in the tropical waters of the Northwestern Atlantic. Most of the regional knowledge about their diversity and distribution is based on surface samples (0–200 m). Siphonophores were collected from oceanic waters off the Mexican Caribbean across an expanded sampling range (0–940 m) during two cruises and were taxonomically examined. A total of 47 siphonophore species were recorded, of these, 14 had not been found in this sector of the Caribbean Sea and 10 represent new records for the Caribbean Basin. The number of species currently known from the western Caribbean is increased from 42 to 56. Some of these species also represent new records for the Northwestern Tropical Atlantic region. The greatest relative increase was observed among species of Lensia, five of which are exclusively deep-living forms dwelling below 300 m. A revised, expanded checklist of the siphonophores of the Western Caribbean is also provided. These results confirm the need of further deep sampling to increase our understanding of Caribbean siphonophore diversity.

scholarly journals Checklist of the salps (Tunicata, Thaliacea) from the Western Caribbean Sea with a key for their identification and comments on other North Atlantic salps

Zootaxa ◽  
2012 ◽  
Vol 3210 (1) ◽  
pp. 50 ◽  
Author(s):  
CLARA MARÍA HEREU ◽  
EDUARDO SUÁREZ-MORALES
Keyword(s):  
North Atlantic ◽  
Caribbean Sea ◽  
Depth Range ◽  
Tropical Atlantic ◽  
The North ◽  
New Information ◽  
Plankton Biomass ◽  
Western Caribbean ◽  
The Caribbean

In waters of the Northwestern Atlantic pelagic tunicates may contribute significantly to the plankton biomass; however, theregional information on the salp fauna is scarce and limited to restricted sectors. In the Caribbean Sea (CS) and the Gulf ofMexico (GOM) the composition of the salpid fauna is still poorly known and this group remains among the less studiedzooplankton taxa in the Northwestern Tropical Atlantic. A revised checklist of the salp species recorded in the North At-lantic (NA, 0–40° N) is provided herein, including new information from the Western Caribbean. Zooplankton sampleswere collected during two cruises (March 2006, January 2007) within a depth range of 0–941 m. A total of 14 species wererecorded in our samples, including new records for the CS and GOM area (Cyclosalpa bakeri Ritter 1905), for the CS (Cy-closalpa affinis (Chamisso, 1819)), and for the Western Caribbean (Salpa maxima Forskål, 1774). The number of speciesof salps known from the CS and GOM rose to 18. A key for the identification of the species recorded in the region is provided. Studies on the ecological role of salps in several sectors of the NA are scarce and deserve further attention.

scholarly journals High clonality in Acropora palmata and Acropora cervicornis populations of Guadeloupe, French Lesser Antilles

2015 ◽  
Vol 66 (9) ◽  
pp. 847 ◽  
Author(s):  
A. Japaud ◽  
C. Bouchon ◽  
J.-L. Manceau ◽  
C. Fauvelot
Keyword(s):  
Genetic Diversity ◽  
Clonal Growth ◽  
Caribbean Sea ◽  
Lesser Antilles ◽  
Acropora Palmata ◽  
Acropora Cervicornis ◽  
Population Densities ◽  
Genetic Status ◽  
The Caribbean ◽  
Genotypic Richness

Since the 1980s, population densities of Acroporidae have dramatically declined in the Caribbean Sea. Quantitative censuses of Acroporidae provide information on the number of colonies (i.e. ramets), but not on the number of genetically distinct individuals (i.e. genets). In this context, the aim of our study was to provide an overview of the genetic status of Acropora populations in Guadeloupe by examining the genotypic richness of Acropora palmata and Acropora cervicornis. Using 14 microsatellite loci, we found extremely low genotypic richness for both species from Caye-à-Dupont reef (i.e. 0.125 for A. palmata and nearly zero for A. cervicornis). Because genetic diversity contributes to the ability of organisms to evolve and adapt to new environmental conditions, our results are alarming in the context of ongoing global warming as long periods of clonal growth without sexual recruitment may lead to the extinction of these populations.

scholarly journals Wave Energy Flux Variability in the Caribbean Sea

2022 ◽  
Author(s):  
Andrés Fernando Orejarena ◽  
Juan Manuel Sayol ◽  
Ismael Hernández-carrasco ◽  
Alejandro Cáceres ◽  
Juan Camilo Restrepo ◽  
...  
Keyword(s):  
Energy Flux ◽  
Wave Energy ◽  
Southern Oscillation ◽  
Caribbean Sea ◽  
Western Basin ◽  
Wave Hindcast ◽  
Novel Approach ◽  
Wave Energy Flux ◽  
The Caribbean ◽  
And Migration

Abstract Wave energy flux (WEF) is assessed in the Caribbean Sea from a 60-year (1958--2017) wave hindcast. We use a novel approach, based on neural networks, to identify coherent regions of similar WEF and their association with different climate patterns. This method allows for a better evaluation of the underlying dynamics behind seasonal and inter-annual WEF variability, including the effect induced by the latitudinal migration of the Intertropical Convergence Zone (ITCZ), and the influence of El Ni\~no-Southern Oscillation events. Results show clear regional differences of the WEF variability likely due to both a clear regionalization of the WEF due to both the intensification and migration of the ITCZ. WEF exhibits a strong semiseasonal signal in areas of the continental shelf, with maximums in January and June, in agreement with the sea surface temperature and sea level pressure variability. At larger scales, WEF shows a significant correlation with the Oceanic Ni\~no Index depicting positive values in the central and western basin and negative ones at the eastern side.

Evaluation of Extreme Waves Associated with Cyclonic Activity on San Andrés Island in the Caribbean Sea since 1900

2015 ◽  
Vol 313 ◽  
pp. 557-568 ◽  
Author(s):  
Juan Carlos Ortiz Royero ◽  
José Manuel Plazas Moreno ◽  
Omar Lizano
Keyword(s):  
Caribbean Sea ◽  
Cyclonic Activity ◽  
Extreme Waves ◽  
The Caribbean ◽  
San Andres

scholarly journals Shipwrecks on Roncador Cay, the Caribbean Sea and Their Relationship with Hurricanes, 1492-1920

2021 ◽  
Author(s):  
William Gomez Pretel ◽  
Moon-Soo Jeong
Keyword(s):  
Environmental Conditions ◽  
Caribbean Sea ◽  
Future Research ◽  
Tropical Storms ◽  
Underwater Cultural Heritage ◽  
Search Results ◽  
New Information ◽  
Western Caribbean ◽  
The Caribbean ◽  
The Relationship

AbstractPrevious studies suggest that tropical storms and hurricanes are among the leading causes of shipwrecks in the Caribbean Sea since 1492. This paper will explore the relationship between shipwrecks and hurricanes in the Western Caribbean, particularly Roncador Cay, a place with complex environmental conditions that have made this area a trap for ships, but has up until now, been without rigorous shipwreck analysis. This study covers the period 1492 to 1920 with search results of 23 shipwrecks and 37 tropical cyclones compiled in databases, reviewing seven wrecks already documented and revealing new information on 16, previously not recorded. The sources provide detailed shipwrecks, demonstrating that most accidents occurred by unspecific causes and no direct relationship with hurricanes but were influenced by environmental conditions, such as geomorphology, cold fronts, or currents. There is also a reflection on the sociocultural changes and the influence of power in the region. The study includes a suggested tool for future research, protecting the wreck site and emphasizing the importance of the underwater cultural heritage as an indicator of the active maritime past.

A collection of Sabellidae (Polychaeta) from Carrie Bow Cay (Belize, western Caribbean Sea) with the description of two new species

Zootaxa ◽  
2007 ◽  
Vol 1650 (1) ◽  
pp. 41-53 ◽  
Author(s):  
ADRIANA GIANGRANDE ◽  
MARGHERITA LICCIANO ◽  
MARIA CRISTINA GAMBI
Keyword(s):  
New Species ◽  
Caribbean Sea ◽  
Smithsonian Institution ◽  
Washington Dc ◽  
Field Station ◽  
Two New Species ◽  
Mediterranean Regions ◽  
Western Caribbean ◽  
The Caribbean ◽  
Substrate Types

In the framework of a research on taxonomy and ecology of selected families of polychaetes conducted at the field station of the Smithsonian Institution (Washington DC, USA) at Carrie Bow Cay (Belize, Western Caribbean Sea) on November 2005, several qualitative benthic samples from different habitats and substrate types (Thalassia testudinum shoots, fragments of dead hard corals, sponges) have been analyzed. In some of these samples, specimens of Sabellidae were found, revealing, together with some taxa already known for the area, the presence of two new species, Megalomma fauchaldi sp. nov., and Pseudoaugeneriella spongicola sp. nov., this latter representing a genus newly reported from the Caribbean. Sabellidae biodiversity and systematics between Caribbean and Mediterranean regions is also compared.

scholarly journals THE CHAENOPSINE BLENNIES OF THE SOUTHWESTERN CARIBBEAN (PISCES: CLINIDAE: CHAENOPSINAE) I. SYSTEMATIC ANALYSIS AND ZOOGEOGRAPHY

2016 ◽  
Vol 14 ◽  
Author(s):  
Arturo Acero P.
Keyword(s):  
Fish Fauna ◽  
West Indian ◽  
The Bahamas ◽  
Systematic Analysis ◽  
Southern Caribbean ◽  
Western Caribbean ◽  
Species Groups ◽  
The Caribbean ◽  
Southern Florida ◽  
San Andres

The chaenopsine blennies are an homogeneous group which may be considered a subfamily of the Clinidae, since the existing evidence is not enough to give them familial status. The subfamily includes eight genera: Mccoskerichthys, Coralliozetus, Acanthemblemaria, Ekemblemaria, Emblemaria, Hemiemblemaria, Lucayablennius, and Chaenopsis. The nominal genera Protemblemaria and Emblemariopsis are herewith considered synonyms of Coralliozetus, since they share two derived characters: small size and sexual dimorphism in the color of the head, and are rather similar in several other characteristics. The división of the West Indian Zoogeographical Province made by Briggs (1974) is unnatural, since the fish fauna of Belize, Florida and the Bahamas is very similar. I proposed two subprovinces, the Northern Caribbean-Antillean from Isla de San Andrés (12.5°N) in the western Caribbean to Cabo Catoche (21.5°N, México), southern Florida, Bahamas, Bermuda, and the Antilles; and the Southern Caribbean from Costa Rica to the island of Trinidad. Eight of the thirteen chaenopsines endemic to the Southern Caribbean Subprovince belong to genera, subgenera, or species-groups of Chaenopsinae more widely distributed in the eastern Pacific than in the Caribbean, being therefore pacificophile species. There are 23 species of chaenopsine blennies in the southern Caribbean, which is 61% of the total West Indian fauna of the group, while in the Northern Caribbean-Antillean Subprovince the number of known species is 20.

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