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 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.

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>

New species of Pseudonereis Kinberg, 1865 (Polychaeta: Nereididae) from the Atlantic Ocean, and a review of paragnath morphology and methodology

Zootaxa ◽  
2018 ◽  
Vol 4471 (2) ◽  
pp. 245 ◽  
Author(s):  
VÍCTOR M. CONDE-VELA
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Gulf Of Mexico ◽  
Caribbean Sea ◽  
Distinct Species ◽  
Eastern Pacific ◽  
Type Locality ◽  
Gulf Of Guinea ◽  
Undescribed Species ◽  
The Caribbean

Pseudonereis gallapagensis Kinberg, 1865 and P. variegata (Grube & Kröyer in Grube, 1858) are the only two species of this genus commonly recorded along Atlantic American coasts, but their type localities are in the Eastern Pacific, and their morphology differs. Two new Pseudonereis species are described from Eastern Mexico: P. brunnea sp. n. from the Gulf of Mexico, and P. citrina sp. n. from the Caribbean Sea, previously confused with P. gallapagensis. In order to facilitate comparisons, descriptions based on specimens from near the type locality for P. gallapagensis (Peru and Ecuador), and topotypes for P. variegata (Valparaiso, Chile), are included. Based on these comparisons and current descriptions, the synonymies of Nereis ferox Hansen, 1882 described from Brazil with P. variegata, and of Pseudonereis formosa Kinberg, 1865 described from Hawaii with P. gallapagensis, are rejected. Consequently, both are regarded as distinct species and revised diagnoses are provided for them. The record of P. ferox from the Gulf of Guinea proved to be an undescribed species, and is herein described as P. fauveli sp. n. The number of paragnath rows in nereidid pharynx areas VII–VIII has been interpreted in several ways, leading to confusion; an alternative method to determine the number of bands and rows is proposed. The midventral region, the division of areas VII–VIII in furrow and ridge regions, and the description of the arrangement based on the pattern of paragnaths in such regions, are proposed. Further, the terms shield-shaped and pointed (P-bars) bars are redefined, and a new term, crescent-shaped bars, is proposed for paragnaths in the areas VI in some Pseudonereis and Perinereis species. A key for all Pseudonereis species is also included. 

scholarly journals Diversity of mangrove root-dwelling sponges in a tropical coastal ecosystem in the southern Gulf of Mexico region

2020 ◽  
Vol 74 (1) ◽  
Author(s):  
Pedro de Jesús Castellanos-Pérez ◽  
Laura Elena Vázquez-Maldonado ◽  
Enrique Ávila ◽  
José Antonio Cruz-Barraza ◽  
Julio César Canales-Delgadillo
Keyword(s):  
Gulf Of Mexico ◽  
New Records ◽  
Coastal Ecosystem ◽  
High Productivity ◽  
Mangrove Root ◽  
Red Mangrove ◽  
Reef Environments ◽  
Southern Gulf Of Mexico ◽  
The Caribbean ◽  
Central Atlantic

AbstractSponges are one of the most conspicuous groups of epibionts in mangrove prop root habitats. However, with the exception of the Caribbean and the Indo-Pacific regions, studies focused on species diversity are lacking in other locations that have high mangrove coverage and are relatively distant from coral reef environments. Because mangrove-root epibiont communities, in general, have been understudied worldwide, this research contributes to filling this knowledge gap. In this study, a total of 30 sponge species (belonging to three subclasses, 14 families and 19 genera) were recorded as epibionts on prop roots of the red mangrove Rhizophora mangle in a tropical coastal ecosystem of the Southern Gulf of Mexico. Of these, five were new records for the Gulf of Mexico, 14 were new for the Mexican coasts of the gulf and 25 were new for the study area. Moreover, a similarity analysis based on presence/absence data of mangrove-associated sponges reported throughout the Western Central Atlantic region revealed that the sponge assemblage from the study area was more similar to those documented in most of the Caribbean locations (Jamaica, Cuba, Martinique, Panama, Venezuela, Belize and Colombia) rather than with those of the Northeast of the Gulf of Mexico, Guadeloupe and Trinidad. This relative intra-regional dissimilarity in the structure of mangrove-associated sponge assemblages may be related to differences in environmental conditions as well as taxonomic effort. The study area, unlike most of the Caribbean locations, is characterized by estuarine conditions and high productivity throughout the year. The inter-site variability recorded in the composition of mangrove-associated sponges was influenced by a set of factors such as salinity, dissolved oxygen and hydrodynamism. This study shows the importance of exploring the mangrove-associated sponge assemblages from different regions of the world as it furthers knowledge of the biodiversity and global distribution of this group.

On reproduction in Crouania pumila (Callithamniaceae, Rhodophyta), a new record for the Red Sea

2019 ◽  
Vol 62 (6) ◽  
pp. 595-598
Author(s):  
Razy Hoffman
Keyword(s):  
Red Sea ◽  
New Record ◽  
Algal Species ◽  
Caribbean Sea ◽  
Red Alga ◽  
Type Locality ◽  
Microscope Slide ◽  
New Information ◽  
The Caribbean ◽  
First Time

Abstract The minute red alga Crouania pumila (Callithamniaceae: Rhodophyta), recently described from the Caribbean Sea, is reported for the first time from the Red Sea, approximately 12,000 km from the type locality, based on microscope slide specimens collected 40 years ago by Dr. Yaacov Lipkin. These samples contribute new information regarding the reproduction of this algal species.

The Cretaceous crinoid Uintacrinus socialis from Jamaica and its significance for global correlation

2009 ◽  
Vol 146 (6) ◽  
pp. 937-940 ◽  
Author(s):  
SIMON F. MITCHELL
Keyword(s):  
Late Cretaceous ◽  
Deep Water ◽  
First Record ◽  
North Coast ◽  
Caribbean Region ◽  
Latitudinal Distribution ◽  
The North ◽  
Global Correlation ◽  
Potential Marker ◽  
The Caribbean

AbstractThe late Cretaceous crinoid Uintacrinus socialis Grinnell, which is a potential marker for the base of the Upper Santonian Substage, is reported from the Inoceramus Shales of St Ann's Great River Inlier on the north coast of Jamaica. This is the first record of this species from the Caribbean region and marks its lowest latitudinal distribution reported to date. The Inoceramus Shales are a deep-water clastic mudstone unit which extends the palaeoecological distribution of this crinoid. Uintacrinus socialis proves that the Inoceramus Shales are of Santonian age and will help constrain correlations between the shallow-water platform carbonate/volcaniclastic facies found in the arc successions of the Caribbean and the international chronostratigraphy.

DIATOMS (BACILLARIOPHYTA) FROM ARTIFICIAL SUBSTRATES AND SEDIMENTS IN THE CARIBBEAN SEA OFF YUCATAN, MEXICO

Phytotaxa ◽  
2019 ◽  
Vol 406 (1) ◽  
pp. 1 ◽  
Author(s):  
FRANCISCO OMAR LÓPEZ-FUERTE ◽  
DAVID A. SIQUEIROS-BELTRONES ◽  
LUCIEN VELEVA
Keyword(s):  
Stainless Steel ◽  
New Records ◽  
Sampling Site ◽  
Caribbean Sea ◽  
Marine Diatom ◽  
Artificial Substrates ◽  
Scanning Electron Micrographs ◽  
Fiber Glass ◽  
Floristic Survey ◽  
The Caribbean

We provide a floristic and iconographic reference of benthic marine diatom taxa growing on various artificial substrate plates: fiber-glass, stainless steel, aluminum and copper, afixed to a subtidal beach, as well as of diatoms from the adjacent sediments. The sampling site is located 10 km off the beach of Puerto de Telchac, Yucatan, Mexico. The floristic survey comprises 161 diatom taxa, species and varieties, with six new records for Mexican waters with taxonomic, nomenclatural, and updated bibliographic information for each taxon. Twenty-five taxa were identified solely to genus level. The number of species per substrate was: fiberglass 102, sediments 76, aluminum 51, stainless steel 14, and copper 10. The resulting catalog gathers 267 images, with 137 scanning electron micrographs and 135 light micrographs. Fiber-glass plates showed the highest similarity to natural substrate, at 70% of the total taxa, while copper harbored only 6%.

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