Results 191 to 200 of about 2,829 (238)

Symbiotic Association Between Symbiodinium and the Gastropod Strombus gigas: Larval Acquisition of Symbionts

Marine Biotechnology, 2013
The importance of the dinoflagellate Symbiodinium sp. was studied in the early life stages of the gastropod Strombus gigas. This dinoflagellate was not found in the eggs or the gelatinous mass surrounding the eggs of the mollusk; therefore, Symbiodinium is not inherited directly. To determine whether the planktonic veligers can acquire these algae from
Anastazia Banaszak
exaly   +3 more sources

Analysis of toughening mechanisms in the Strombus gigas shell

Journal of the Mechanical Behavior of Biomedical Materials, 2015
A finite element analysis of the fracture mechanisms in the Strombus gigas conch shell is presented in this work. The S. gigas shell has a complex microarchitecture that consists of three main macroscopic layers of calcium carbonate: the inner, middle, and outer layers.
Scott, DiPette, Ani, Ural, Sridhar, Santhanam   +2 more
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Branched ?-1,4-glucan from the gastropod mollusk Strombus gigas

Chemistry of Natural Compounds, 1988
From the mantle of the Caribbean Sea gastropod molluskStrombus gigas a bioglycan containing carbohydrates (73%), protein (22%), and lipid (about 5%) components has been isolated. It has been shown by hydrolysis, periodate oxidation, and methylation that the bioglycan is a D-glucan constructed of α-1,4-bound D-glucose residues and has side chains of D ...
L. V. Mikheiskaya, V. I. Molchanova, R. G. Ovodova, V. Fernandes Santana   +3 more
openaire   +1 more source

Photothermal characterization of thermally treated shells of Strombus Gigas

Journal de Physique IV (Proceedings), 2005
The thermal properties of the marine shells of the mollusk Strombus gigas are studied using photoacoustic techniques. In order to generate changes in the layered structure of the shells, they were thermally treated in therange from ambient temperature up to 400°C.
A. Hernández-Ayala, P. Quintana, J. J. Alvarado-Gil, D. Aldana   +3 more
openaire   +1 more source

Contaminants in Queen Conch (Strombus gigas) in Vieques, Puerto Rico

Regional Studies in Marine Science, 2016
Abstract Pollution has the potential to negatively alter coastal ecosystem health, including fisheries species, through direct impacts, food web effects and habitat degradation. Vieques is an island municipality of the Commonwealth of Puerto Rico, which lies off the east coast of the main island.
David Whitall, Antares Ramos, Diane Wehner, Michael Fulton, Andrew Mason, Ed Wirth, Blaine West, Anthony Pait, Emily Pisarski, Brian Shaddrix, Lou Ann Reed   +10 more
openaire   +1 more source

Overview of diets used in larviculture of three Caribbean Conchs: Queen Conch Strombus gigas, Milk Conch Strombus costatus and Fighting Conch Strombus pugilis

Aquaculture, 1998
Abstract The genus Strombus is widely distributed in the Caribbean. Six species are of commercial importance: S. gigas, S. raninus, S. costatus, S. alatus, S. gallus and S. pugilis. Economically, the Queen conch, S. gigas is the most important and consequently the most widely studied. However, since 1970 a decline of S.
Dalila Aldana-Aranda, Victoria Patiño Suárez   +1 more
openaire   +1 more source

Aspects of the reproductive biology of Strombus gigas

1985
Shell morphology changes relating to sexual maturity and the reproductive cycle of Strombus gigas were studied at a single site within the Barrier Reef lagoon of Belize, Central America. Monthly samples, from July 1981 to June 1983, of transverse tissue sections, through the digestive gland and gonad, were fixed for examination by light microscopy ...
openaire   +1 more source

COCCIDIAN (APICOMPLEXA) PARASITE INFECTING STROMBUS GIGAS LINNÉ, 1758 DIGESTIVE GLAND

Journal of Shellfish Research, 2007
Abstract This study reports on a new parasite of the digestive gland of the queen conch, Strombus gigas. An intense and generalized sporozoan infection was detected during a reproductive study of S. gigas in San Andres island (Colombia). The parasite was found in the digestive gland of every sampled S.
ERICK BAQUEIRO CÁRDENAS, LILIANE FRENKIEL, ADRIANA ZETINA ZARATE, DALILA ALDANA ARANDA   +3 more
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The shell organic matrix of the crossed lamellar queen conch shell (Strombus gigas)

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2014
In molluscs, the shell organic matrix comprises a large set of biomineral-occluded proteins, glycoproteins and polysaccharides that are secreted by the calcifying mantle epithelium, and are supposed to display several functions related to the synthesis of the shell.
Osuna-Mascaró, Antonio, Cruz-Bustos, Teresa, Benhamada, Sana, Guichard, Nathalie, Marie, Benjamin, Plasseraud, Laurent, Corneillat, Marion, Alcaraz, Gérard, Checa, Antonio, Marin, Frédéric   +9 more
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Carbohydrases of the crystalline style and hepatopancreas of Strombus gigas linné

Comparative Biochemistry and Physiology, 1966
Abstract 1. In Strombus gigas Linnecarbohydrase activity is present both in the crystalline style and in the hepatopancreas. 2. Only cellulase and maltase were detected in the crystalline style, while extracts of the hepatopancreas contained amylase, cellulase, maltase, cellobiase, α-glucosidase, β-glucosidase, sucrase, galactosidase and ...
Shiro Horiuchi, Charles E. Lane
openaire   +1 more source