scholarly journals Deep-sea holothurians (Echinodermata, Holothuroidea) from the Colombian Southern Caribbean Sea

Check List ◽  
2020 ◽  
Vol 16 (3) ◽  
pp. 535-551 ◽  
Author(s):  
Giomar H. Borrero-Pérez ◽  
Luisa F. Dueñas ◽  
Jorge León ◽  
Vladimir Puentes
Keyword(s):  
Atlantic Ocean ◽  
Deep Sea ◽  
Caribbean Sea ◽  
Species Level ◽  
Southern Caribbean ◽  
The Caribbean ◽  
First Time ◽  
Video Surveys

Fifteen morphotypes of deep-sea holothurians were documented by photography or videography at depths of 596–2,566 m, using Remote Operated Vehicles (ROV) video surveys and towed camera transects, during hydrocarbon exploratory activities in the Colombian Southern Caribbean. Most of the morphotypes were identified to the species level based on the images. The species belong to four orders, Apodida (1 species), Persiculida (3 species), Elasipodida (8 species), and Synallactida (3 species). Four species, three genera, and three families are reported for the first time in the Colombian Caribbean Sea. Some of the reports also represent first records for the Caribbean Sea and the Atlantic Ocean.

A Cryptic Invasion in the Western Atlantic: Presence of the Fouling Barnacle Megabalanus zebra (Darwin, 1854) (Crustacea, Cirripedia) in the Caribbean Sea

Zootaxa ◽  
2017 ◽  
Vol 4237 (1) ◽  
pp. 131 ◽  
Author(s):  
FABIO BETTINI PITOMBO ◽  
JUDITH GOBIN ◽  
NIVIA MARIA NUNES ABREU ◽  
ALANA JUTE
Keyword(s):  
Atlantic Ocean ◽  
Caribbean Sea ◽  
Western Atlantic ◽  
Ship Hulls ◽  
Western Atlantic Ocean ◽  
Cryptic Invasion ◽  
Southern Caribbean ◽  
Natural Range ◽  
The Caribbean ◽  
Delayed Recognition

The barnacle Megabalanus zebra is largely known from ship hulls, with little information on its biology, ecology, and natural range. We identify M. zebra here from the southern Caribbean, based upon specimens collected as early as 2002. Challenges associated with identifying megabalinine species have delayed recognition of this species as distinct from other Caribbean Megabalanus. Sequenced material of M. zebra from Curaçao did not match M. zebra GenBank sequences that could be verified by descriptions or vouchered material. The presence of young M. zebra on vessels that have not left the Caribbean, as well as on pier pilings and resident buoys, indicate that this species is established in the tropical Western Atlantic Ocean, but the timing of its invasion remains unknown.  

scholarly journals NEW RECORDS OF THE DISTINCTIVE BENTHIC DINOFLAGELLATE GENUS Cabra (DINOPHYCEAE)

2015 ◽  
Vol 30 (1) ◽  
pp. 63
Author(s):  
F. Gómez ◽  
R. M. Lopes
Keyword(s):  
Atlantic Ocean ◽  
Light Microscopy ◽  
Mediterranean Sea ◽  
New Records ◽  
Morphological Variability ◽  
Caribbean Sea ◽  
Original Description ◽  
Undescribed Species ◽  
The Caribbean ◽  
First Time

The benthic dinoflagellate genus Cabra is reported for the first time in the Mediterranean Sea and the South Atlantic Ocean, with additional records in the Caribbean Sea and the eastern Asian coasts. Cabra aremorica is reported for the first time after the original description. However, these records should be considered cautiously because the distinction between Cabra aremorica and C. reticulata is difficult based on routine light microscopy observations. It is uncertain whether there is a high intraspecific morphological variability or several co-occurring undescribed species. Cabra levis, a species recently described, is reported for first time beyond the type locality. Nuevos registros del distintivo género de dinoflagelado bentónico Cabra (Dinophyceae) El dinoflagelado bentónico del géneroCabrase describe por primera vez en el Mar Mediterráneo y el Océano Atlántico Sur, con registros adicionales en el Mar Caribe y las costas orientales de Asia. Cabra aremorica se cita por primera vez después de la descripción original. Sin embargo, estos registros deben ser considerados con cautela porque la distinción entre Cabra aremorica y C. reticulata es difícil basándose solo en observaciones rutinarias de microscopía óptica. No está claro si existe una alta variabilidad morfológica intra-específica o si existen varias especies no descritas que coexisten. Cabra levis, una especie recientemente descrita, se describe por primera vez más allá de su localidad tipo.

scholarly journals New host report for nematodes in a stranded short-snouted spinner dolphin Stenella clymene (Cetacea: Delphinidae) from the Mexican Caribbean coast

2010 ◽  
Vol 47 (2) ◽  
pp. 136-138 ◽  
Author(s):  
R. Aguilar-Aguilar ◽  
A. Delgado-Estrella ◽  
R. Moreno-Navarrete
Keyword(s):  
Atlantic Ocean ◽  
Caribbean Sea ◽  
Nematode Species ◽  
Quintana Roo ◽  
New Host ◽  
Western Atlantic ◽  
Mexican Caribbean ◽  
Spinner Dolphin ◽  
The Caribbean ◽  
First Time

AbstractOne short-snouted spinner dolphin Stenella clymene individual stranded on the coast of Quintana Roo, Mexico, was examined for stomach and lung nematodes. During necropsy, a large number of nematodes of the species Skrjabinalius guevarai were found in the airways. Additionally, some larval Anisakis sp. were found in the stomach. Both nematode species are reported for the first time from this host. The present is the first helminthological study of the short-snouted spinner dolphin in Mexico and adjacent waters of the Caribbean Sea. S. guevarai is reported for the first time from the western Atlantic Ocean.

scholarly journals Controls of Caribbean surface hydrology during the mid- to late Holocene: insights from monthly resolved coral records

2013 ◽  
Vol 9 (2) ◽  
pp. 841-858 ◽  
Author(s):  
C. Giry ◽  
T. Felis ◽  
M. Kölling ◽  
W. Wei ◽  
G. Lohmann ◽  
...  
Keyword(s):  
Late Holocene ◽  
Hydrological Cycle ◽  
Summer Precipitation ◽  
Caribbean Sea ◽  
Sea Surface ◽  
Surface Currents ◽  
Surface Hydrology ◽  
Multidecadal Variability ◽  
Southern Caribbean ◽  
The Caribbean

Abstract. Several proxy-based and modeling studies have investigated long-term changes in Caribbean climate during the Holocene, however, very little is known on its variability on short timescales. Here we reconstruct seasonality and interannual to multidecadal variability of sea surface hydrology of the southern Caribbean Sea by applying paired coral Sr/Ca and δ18O measurements on fossil annually banded Diploria strigosa corals from Bonaire. This allows for better understanding of seasonal to multidecadal variability of the Caribbean hydrological cycle during the mid- to late Holocene. The monthly resolved coral Δδ18O records are used as a proxy for the oxygen isotopic composition of seawater (δ18Osw) of the southern Caribbean Sea. Consistent with modern day conditions, annual δ18Osw cycles reconstructed from three modern corals reveal that freshwater budget at the study site is influenced by both net precipitation and advection of tropical freshwater brought by wind-driven surface currents. In contrast, the annual δ18Osw cycle reconstructed from a mid-Holocene coral indicates a sharp peak towards more negative values in summer, suggesting intense summer precipitation at 6 ka BP (before present). In line with this, our model simulations indicate that increased seasonality of the hydrological cycle at 6 ka BP results from enhanced precipitation in summertime. On interannual to multidecadal timescales, the systematic positive correlation observed between reconstructed sea surface temperature and salinity suggests that freshwater discharged from the Orinoco and Amazon rivers and transported into the Caribbean by wind-driven surface currents is a critical component influencing sea surface hydrology on these timescales.

scholarly journals REVISIÓN TAXONÓMICA DEL CORAL PORITES COLONENSIS (SCLERACTINIA: PORITIDAE) EN EL CARIBE COLOMBIANO

2016 ◽  
Vol 37 (2) ◽  
Author(s):  
Dagoberto E. Venera Pontón ◽  
Javier Reyes ◽  
Guillermo Diaz Pulido
Keyword(s):  
Continental Shelf ◽  
Taxonomic Revision ◽  
Caribbean Sea ◽  
South American ◽  
Large Variability ◽  
Porites Astreoides ◽  
Taxonomic Review ◽  
Natural Park ◽  
The Caribbean ◽  
First Time

Porites colonensis is a coral from the Caribbean Sea; colonies are foliaceous, undulated, and plate-like. Polyps are dark brown or red with small bright white or green centers; pali are present in corallites and the septal plan is bisymmetrical, conformed by three fused ventral septa, a dorsal solitary septum, and two pairs of lateral septa at each side of the dorso-ventral axis. P. colonensis is similar and can be confused with the smooth varieties of Porites astreoides and Porites branneri. There are three specimens collected from Colombia and previously identified as P. colonensis: one from Golfo de Urabá (Darién ecoregion), other from Islas del Rosario (Coralline Archipelagos ecoregion), and another from an unspecified locality, in addition to one published observation from the Golfo de Urabá without collected specimens. A recent finding of other specimens in the Tayrona National Natural Park (TNNP, Tayrona ecoregion) and the absence of a rigorous taxonomic revision for all specimens collected from Colombia showed that it was necessary to review the presence and distribution of P. colonensis in the Colombian Caribbean. A taxonomic review was done for all specimens collected from Colombia and previously identified as P. colonensis. Then, the morphologic variability of specimens that were confirmed as P. colonensis was described. Only the specimens from TNNP agreed with the holotype description of P. colonensis, while others agreed with flat varieties of P. astreoides. Thus, the presence of P. colonensis is confirmed for the first time for Colombia, but its presence in other Colombian localities outside Tayrona ecoregion could not be demonstrated. This is the only confirmed record of this species for the South American continental shelf. Furthermore, the skeletal characteristics of Colombian P. colonensis corallites showed large variability, exceeding the ranges previously described for the species.

Halimeda incrassata (Bryopsidales, Chlorophyta) reaches the Canary Islands: mid- and deep-water meadows in the eastern subtropical Atlantic Ocean

2018 ◽  
Vol 61 (2) ◽  
pp. 103-110 ◽  
Author(s):  
Carlos Sangil ◽  
Laura Martín-García ◽  
Julio Afonso-Carrillo ◽  
Jacinto Barquín ◽  
Marta Sansón
Keyword(s):  
Atlantic Ocean ◽  
Canary Islands ◽  
Deep Water ◽  
Population Coverage ◽  
Isolated Populations ◽  
La Palma ◽  
Soft Bottoms ◽  
The Caribbean ◽  
Marine Flora ◽  
First Time

AbstractExtensive offshore meadows ofHalimeda incrassataare documented for the first time in sandy bottoms of La Palma, Canary Islands.Halimeda incrassataforms dense sublittoral assemblages between 20 and 55 m, but isolated populations occur down to 65 m depth. This species currently spreads over an area of 9.14 ha. Population coverage varies with depth, with the highest values at 35–40 m and an average cover of 62.34%. The calcified segments ofH. incrassataact as a stable substratum in these soft bottoms for the growth of other macroalgae, such as the rhodophytesLophocladia trichocladosandCottoniella filamentosa. Specimens reach lengths of up to 10 cm, shorter than individuals from the Caribbean. Although it is difficult to ascertain whether this species is a recent introduction, there is evidence of a correlation between the increase in population coverage and recent ocean warming, constituting another example of the tropicalization of the marine flora of this region.

scholarly journals II. Cores from Basins Adjacent to the Atlantic Ocean

Radiocarbon ◽  
1988 ◽  
Vol 30 (3) ◽  
pp. 274-275
Keyword(s):  
Atlantic Ocean ◽  
Caribbean Sea ◽  
Age Difference ◽  
The Caribbean ◽  
Glacial Time

The study of this core was undertaken to measure the benthic-planktonic age difference for the “Boyle water” of glacial time in the Caribbean Sea (see Figs 5,6; Table 5).

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. 

DEEP-SEA MYSIDS FROM THE NORTH ATLANTIC OCEAN WITH DESCRIPTION OF FOUR NEW SPECIES

Crustaceana ◽  
1999 ◽  
Vol 72 (3) ◽  
pp. 273-295 ◽  
Author(s):  
Masaaki Murano ◽  
John Mauchline
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
Deep Sea ◽  
North Atlantic Ocean ◽  
Stomach Contents ◽  
Pelagic Species ◽  
The North ◽  
The North Atlantic ◽  
First Time

AbstractSeven species of Erythropini from the northeast Atlantic and one from the northwest Atlantic are dealt with. Four are described as new species, and three are new to science but remain unnamed because of mutilated condition. A known species Katerythrops oceanae, is described for the first time for the male pleopods and a revision of the diagnosis of the genus is presented. Five are pelagic species while three were obtained from the stomach contents of demersal fishes. Huit especes d'Erythropini de l'Atlantique sont traitees, dont sept du nord-est et une du nordouest de cet ocean. Quatre sont decrites comme nouvelles et trois sont nouvelle pour la science, mais non nommees en raison de leur condition mutilee. Les pleopodes males d'un espece connue, Katerythrops oceanae, sont decrits pour la premiere fois et la diagnose du genre est revisee. Cinq especes sont pelagiques et trois proviennent de contenus stomacaux de poissons demersaux.

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