scholarly journals 30 Years in the Life of an Active Submarine Volcano: A Time-Lapse Bathymetry Study of the Kick-'em-Jenny Volcano, Lesser Antilles

2018 ◽  
Vol 19 (3) ◽  
pp. 715-731 ◽  
Author(s):  
R. W. Allen ◽  
C. Berry ◽  
T. J. Henstock ◽  
J. S. Collier ◽  
F. J-Y. Dondin ◽  
...  
Keyword(s):  
Time Lapse ◽  
Lesser Antilles ◽  
Submarine Volcano

The “Hodder” Phenomenon of 1902: No-active submarine volcano off St. Lucia (Lesser Antilles)

1982 ◽  
Vol 50 (1-2) ◽  
pp. M29-M36 ◽  
Author(s):  
Philippe Bouysse ◽  
Haraldur Sigurdsson
Keyword(s):  
Lesser Antilles ◽  
Submarine Volcano

A new species of Malacoceros (Polychaeta: Spionidae) from Kick'em Jenny, a hydrothermally active submarine volcano in the Lesser Antilles Arc

2008 ◽  
Vol 88 (5) ◽  
pp. 925-930 ◽  
Author(s):  
Jason R. Graff ◽  
James A. Blake ◽  
Karen F. Wishner
Keyword(s):  
New Species ◽  
Isotope Analysis ◽  
Lesser Antilles ◽  
Mixed Feeding ◽  
Submarine Volcano ◽  
The Caribbean ◽  
Suction Sampler ◽  
Sexually Mature ◽  
A New Species ◽  
Lesser Antilles Arc

A new spionid polychaete, Malacoceros jennicus, is described from the crater of a hydrothermally active submarine volcano near Grenada in the Caribbean, Lesser Antilles Arc region. The new species is characterized by having prominent lateral frontal horns on the prostomium, paired eye spots, neurosetae that include simple capillaries, inferior sabre setae, numerous bidentate hooded hooks, and a pygidium bearing four digitiform anal cirri surrounding the anus. Worms were collected in regions of diffuse venting with a suction sampler deployed on an ROV. Specimens representing a range of sizes including sexually mature and reproductive individuals containing eggs and sperm were found. Stable isotope analysis of 13C and 15N indicate mixed feeding on photosynthetic and hydrothermal vent source material.

scholarly journals Hydrothermal venting and mineralization in the crater of Kick'em Jenny submarine volcano, Grenada (Lesser Antilles)

2016 ◽  
Vol 17 (3) ◽  
pp. 1000-1019 ◽  
Author(s):  
Steven Carey ◽  
Rene Olsen ◽  
Katherine L.C. Bell ◽  
Robert Ballard ◽  
Frederic Dondin ◽  
...  
Keyword(s):  
Lesser Antilles ◽  
Submarine Volcano ◽  
Hydrothermal Venting

Sector collapse at Kick 'em Jenny submarine volcano (Lesser Antilles): numerical simulation and landslide behaviour

2011 ◽  
Vol 74 (2) ◽  
pp. 595-607 ◽  
Author(s):  
Frédéric Dondin ◽  
Jean-Frédéric Lebrun ◽  
Karim Kelfoun ◽  
Nicolas Fournier ◽  
Auran Randrianasolo
Keyword(s):  
Numerical Simulation ◽  
Lesser Antilles ◽  
Submarine Volcano ◽  
Sector Collapse

Ultrastructure of melanocyte-keratinocyte interactions and pigment transfer in vitro

1978 ◽  
Vol 36 (2) ◽  
pp. 650-651
Author(s):  
Raul I. Garcia ◽  
Evelyn A. Flynn ◽  
George Szabo
Keyword(s):  
Direct Injection ◽  
Skin Pigmentation ◽  
Freeze Fracture ◽  
Pigment Granule ◽  
Time Lapse ◽  
Ultrastructural Level ◽  
Lanthanum Tracer ◽  
A Cell

Skin pigmentation in mammals involves the interaction of epidermal melanocytes and keratinocytes in the structural and functional unit known as the Epidermal Melanin Unit. Melanocytes(M) synthesize melanin within specialized membrane-bound organelles, the melanosome or pigment granule. These are subsequently transferred by way of M dendrites to keratinocytes(K) by a mechanism still to be clearly defined. Three different, though not necessarily mutually exclusive, mechanisms of melanosome transfer have been proposed: cytophagocytosis by K of M dendrite tips containing melanosomes, direct injection of melanosomes into the K cytoplasm through a cell-to-cell pore or communicating channel formed by localized fusion of M and K cell membranes, release of melanosomes into the extracellular space(ECS) by exocytosis followed by K uptake using conventional phagocytosis. Variability in methods of transfer has been noted both in vivo and in vitro and there is evidence in support of each transfer mechanism. We Have previously studied M-K interactions in vitro using time-lapse cinemicrography and in vivo at the ultrastructural level using lanthanum tracer and freeze-fracture.

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