Estimating Bioconcentration Factors, Lethal Concentrations and Critical Body Residues of Metals in the Mollusks Perna viridis and Mytilus edulis Using Ion Characteristics

2007 ◽  
Vol preprint (2007) ◽  
pp. 1
Author(s):  
maurits van Kolck ◽  
Mark Huijbregts ◽  
Karin Veltman ◽  
A. Jan Hendriks
Keyword(s):  
Mytilus Edulis ◽  
Perna Viridis ◽  
Bioconcentration Factors

Uptake and Depuration of Two Polycyclic Aromatic Hydrocarbons, Fluorene and Benzo(a)pyrene, in the Mussel Mytilus Edulis and the Diatom Phaeodactylum Tricornuteum

1985 ◽  
Vol 20 (2) ◽  
pp. 29-35 ◽  
Author(s):  
H.S. Majewski ◽  
E. Scherer
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Mytilus Edulis ◽  
Aromatic Hydrocarbons ◽  
Trophic Transfer ◽  
Bioconcentration Factors ◽  
Total Residue ◽  
Uptake Rates ◽  
Polycyclic Aromatic

Abstract In laboratory exposures, uptake rates from water for both benzo(a)pyrene and fluorene were 1-2 orders of magnitude higher in missels than in diatoms, while depuration rates were similar. Bioconcentration factors in mussels were 21428 and 394 for benzo(a)pyrene and fluorene, respectively, and 636 and 11 in diatoms. Accumulation of benzo(a)pyrene in mussels through trophic transfer from algae amounted to 1.3% of total residue in molluscs.

Mussel-based monitoring of trace metal and organic contaminants along the east coast of China using Perna viridis and Mytilus edulis

2004 ◽  
Vol 127 (2) ◽  
pp. 203-216 ◽  
Author(s):  
C.N. Fung ◽  
J.C.W. Lam ◽  
G.J. Zheng ◽  
D.W. Connell ◽  
I. Monirith ◽  
...  
Keyword(s):  
Trace Metal ◽  
Mytilus Edulis ◽  
Organic Contaminants ◽  
East Coast ◽  
Perna Viridis

scholarly journals Assimilation of carbon from a rotifer by the mussels Mytilus edulis and Perna viridis: a potential food-web link

2003 ◽  
Vol 253 ◽  
pp. 175-182 ◽  
Author(s):  
WH Wong ◽  
JS Levinton ◽  
BS Twining ◽  
NS Fisher ◽  
BP Kelaher ◽  
...  
Keyword(s):  
Food Web ◽  
Mytilus Edulis ◽  
Perna Viridis ◽  
Potential Food

The Red Neuronal Pigment in the Nervous System of the Mussel, Mytilus Edulis: Localization and Its Effect on Lateral Ciliary Activity with Spectral and Analytical Changes

1981 ◽  
Vol 39 ◽  
pp. 494-495
Author(s):  
Anthony A. Paparo ◽  
Judith A. Murphy
Keyword(s):  
Nervous System ◽  
Mytilus Edulis ◽  
Neuronal Cell ◽  
Ciliary Activity ◽  
Neuronal Cell Bodies ◽  
The Central Nervous System ◽  
Intracellular Organelles ◽  
The Common ◽  
The Individual ◽  
Cryostat Sections

The purpose of this study was to localize the red neuronal pigment in Mytilus edulis and examine its role in the control of lateral ciliary activity in the gill. The visceral ganglia (Vg) in the central nervous system show an over al red pigmentation. Most red pigments examined in squash preps and cryostat sec tions were localized in the neuronal cell bodies and proximal axon regions. Unstained cryostat sections showed highly localized patches of this pigment scattered throughout the cells in the form of dense granular masses about 5-7 um in diameter, with the individual granules ranging from 0.6-1.3 um in diame ter. Tissue stained with Gomori's method for Fe showed bright blue granular masses of about the same size and structure as previously seen in unstained cryostat sections.Thick section microanalysis (Fig.l) confirmed both the localization and presence of Fe in the nerve cell. These nerve cells of the Vg share with other pigmented photosensitive cells the common cytostructural feature of localization of absorbing molecules in intracellular organelles where they are tightly ordered in fine substructures.

Macrophyte-derived detritus in shallow coastal waters contributes to suspended particulate organic matter and increases growth rates of Mytilus edulis

2020 ◽  
Vol 644 ◽  
pp. 91-103
Author(s):  
D Bearham ◽  
MA Vanderklift ◽  
RA Downie ◽  
DP Thomson ◽  
LA Clementson
Keyword(s):  
Organic Matter ◽  
Mytilus Edulis ◽  
Particulate Organic Matter ◽  
Coastal Waters ◽  
Gill Tissue ◽  
Suspension Feeder ◽  
Food Sources ◽  
Suspension Feeders ◽  
Blue Mussels ◽  
Suspended Particulate

Benthic suspension feeders, such as bivalves, potentially have several different food sources, including plankton and resuspended detritus of benthic origin. We hypothesised that suspension feeders are likely to feed on detritus if it is present. This inference would be further strengthened if there was a correlation between δ13C of suspension feeder tissue and δ13C of particulate organic matter (POM). Since detritus is characterised by high particulate organic matter (POC):chl a ratios, we would also predict a positive correlation between POM δ13C and POC:chl a. We hypothesised that increasing depth and greater distance from shore would produce a greater nutritional reliance by experimentally transplanted blue mussels Mytilus edulis on plankton rather than macrophyte-derived detritus. After deployments of 3 mo duration in 2 different years at depths from 3 to 40 m, M. edulis sizes were positively correlated with POM concentrations. POC:chl a ratios and δ13C of POM and M. edulis gill tissue decreased with increasing depth (and greater distance from shore). δ13C of POM was correlated with δ13C of M. edulis. Our results suggest that detritus comprised a large proportion of POM at shallow depths (<15 m), that M. edulis ingested and assimilated carbon in proportion to its availability in POM, and that growth of M. edulis was higher where detritus was present and POM concentrations were higher.

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