scholarly journals Comparative study on the contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis by oxytetracycline and oxolinic acid

1996 ◽  
Vol 133 ◽  
pp. 143-148 ◽  
Author(s):  
H Pouliquen ◽  
H Le Bris ◽  
V Buchet ◽  
L Pinault
Keyword(s):  
Comparative Study ◽  
Mytilus Edulis ◽  
Crassostrea Gigas ◽  
Blue Mussel ◽  
Oxolinic Acid ◽  
Japanese Oyster

scholarly journals Field clearance of an intertidal bivalve bed: relative significance of the co-occurring blue mussel Mytilus edulis and Pacific oyster Crassostrea gigas

2016 ◽  
Vol 25 ◽  
pp. 107-119 ◽  
Author(s):  
B Vismann ◽  
M Wejlemann Holm ◽  
JK Davids ◽  
P Dolmer ◽  
MF Pedersen ◽  
...  
Keyword(s):  
Mytilus Edulis ◽  
Crassostrea Gigas ◽  
Pacific Oyster ◽  
Blue Mussel ◽  
Relative Significance

A comparative study of uptake and release of glutamic acid and kainic acid by blue mussel (Mytilus edulis L.)

1991 ◽  
Vol 21 (1-2) ◽  
pp. 15-27 ◽  
Author(s):  
M.S. Madhyastha ◽  
I. Novaczek ◽  
R.F. Ablett ◽  
G. Johnson ◽  
M.S. Nijjar ◽  
...  
Keyword(s):  
Comparative Study ◽  
Glutamic Acid ◽  
Mytilus Edulis ◽  
Kainic Acid ◽  
Blue Mussel ◽  
Uptake And Release

Comparative study of metal handling strategies in bivalves Mytilus edulis and Crassostrea gigas: a multidisciplinary approach

2004 ◽  
Vol 84 (3) ◽  
pp. 641-650 ◽  
Author(s):  
A. Geffard ◽  
A.Y. Jeantet ◽  
J.C. Amiard ◽  
M. Le Pennec ◽  
C. Ballan-Dufrançais ◽  
...  
Keyword(s):  
Comparative Study ◽  
Mytilus Edulis ◽  
Digestive Gland ◽  
Crassostrea Gigas ◽  
Multidisciplinary Approach ◽  
Artificial Substrates ◽  
Free Surfaces ◽  
Gironde Estuary ◽  
Species Recruitment ◽  
Cellular Pathology

The comparison of metal handling strategies in mussels Mytilus edulis and oysters Crassostrea gigas was based on the translocation of these bivalves from a relatively clean site (Bay of Bourgneuf, France) to the metal-rich Gironde estuary, France, whereas resident oysters from the Gironde estuary (feral mussels were absent from this site) were cross-translocated to the clean site for seven months (March to October 1997). Higher levels of metal concentrations (Ag, Cd, Cu, Zn) were observed in specimens from both species in the Gironde estuary. However, no cellular pathology was observed, even in translocated mussels which are not normally present in the studied zone of the Gironde estuary. These observations show that both species cope relatively well with the conditions prevailing in the metal-rich estuary, at least partly as a result of the insoluble storage of bioaccumulated metals in well-defined and localized bioaccumulation structures such as mineralized lysosomes in the kidney of mussels and the digestive gland of both species and granules concentrated in extracellular basal lamina. For both species, recruitment of spat was observed on artificial substrates immersed near the site of translocation in the Gironde estuary. The absence of adult mussels in the metal-rich Gironde estuary may be due to competition with oysters for free surfaces of settlement as well as predation by crabs.

scholarly journals Differential Segregation Patterns of Sperm Mitochondria in Embryos of the Blue Mussel (Mytilus edulis)

Genetics ◽  
2004 ◽  
Vol 166 (2) ◽  
pp. 883-894
Author(s):  
Liqin Cao ◽  
Ellen Kenchington ◽  
Eleftherios Zouros
Keyword(s):  
Mitochondrial Dna ◽  
Mytilus Edulis ◽  
Blue Mussel ◽  
Uniparental Inheritance ◽  
Male Gonad ◽  
Doubly Uniparental Inheritance ◽  
Organelle Genomes ◽  
Somatic Tissues ◽  
Tight Linkage ◽  
Mitotracker Green

Abstract In Mytilus, females carry predominantly maternal mitochondrial DNA (mtDNA) but males carry maternal mtDNA in their somatic tissues and paternal mtDNA in their gonads. This phenomenon, known as doubly uniparental inheritance (DUI) of mtDNA, presents a major departure from the uniparental transmission of organelle genomes. Eggs of Mytilus edulis from females that produce exclusively daughters and from females that produce mostly sons were fertilized with sperm stained with MitoTracker Green FM, allowing observation of sperm mitochondria in the embryo by epifluorescent and confocal microscopy. In embryos from females that produce only daughters, sperm mitochondria are randomly dispersed among blastomeres. In embryos from females that produce mostly sons, sperm mitochondria tend to aggregate and end up in one blastomere in the two- and four-cell stages. We postulate that the aggregate eventually ends up in the first germ cells, thus accounting for the presence of paternal mtDNA in the male gonad. This is the first evidence for different behaviors of sperm mitochondria in developing embryos that may explain the tight linkage between gender and inheritance of paternal mitochondrial DNA in species with DUI.

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