Effects of the toxic dinoflagellate Alexandrium monilatum on survival, grazing and behavioral response of three ecologically important bivalve molluscs

Harmful Algae ◽  
2010 ◽  
Vol 9 (3) ◽  
pp. 281-293 ◽  
Author(s):  
Susan P. May ◽  
JoAnn M. Burkholder ◽  
Sandra E. Shumway ◽  
Hélène Hégaret ◽  
Gary H. Wikfors ◽  
...  
Keyword(s):  
Behavioral Response ◽  
Bivalve Molluscs ◽  
Toxic Dinoflagellate ◽  
Alexandrium Monilatum

Spatial interrelationships of bivalves and nonbivalve benthos in a small reservoir in New Brunswick, Canada

1980 ◽  
Vol 58 (5) ◽  
pp. 852-859 ◽  
Author(s):  
T. W. Sephton ◽  
C. G. Paterson ◽  
C. H. Fernando
Keyword(s):  
New Brunswick ◽  
Behavioral Response ◽  
Food Source ◽  
Bivalve Molluscs ◽  
Small Reservoir ◽  
Chironomid Larvae ◽  
Quantitative Sampling ◽  
Numerical Abundance ◽  
Aggregated Distribution

Quantitative sampling of macrobenthos in Morice Lake, New Brunswick, showed that the numerical abundance of chironomid larvae and other nonbivalve detritivore species was significantly increased in the vicinity of bivalve molluscs. Experimentally, increased bivalve numbers in tanks led to an aggregated distribution of nonbivalve benthos. Numerical abundance near bivalves was increased, probably due to a behavioral response of the detritivores to an increased food source.

Fine structural morphology of immunocytes of some molluscs and insects

1990 ◽  
Vol 48 (3) ◽  
pp. 386-387
Author(s):  
S.G. Pal ◽  
G. Baur ◽  
B. Ghosh ◽  
S. Palit ◽  
S. Modak ◽  
...  
Keyword(s):  
Blood Cells ◽  
Phosphate Buffer ◽  
Room Temperature ◽  
Structural Information ◽  
Uranyl Acetate ◽  
Meretrix Meretrix ◽  
Lead Citrate ◽  
Bivalve Molluscs ◽  
Structural Morphology ◽  
Ultrathin Sections

In recent years some of the blood cells of several molluscs and insects are characterised as immunocytes. Similar cells from a few invertebrates from India have been looked into under conventional TEM to register the ultrastructural features. This type of study is first of its kind in the subcontinent. Immunocytes from bivalve molluscs Meretrix meretrix, Laroellidens marqinalis and two insect species, apterygote Ctenolepism a longicaudata and pterygote Gesonula punctifrons provide a new set of fine structural information which forms a basis of comparison with those studied earlier.Immunocytes have been collected from the fresh live species of bivalve molluscs and insects obtained locally at Calcutta. These were fixed in icecold 2% glutaraldehyde in 0.1M phosphate buffer (pH 7.2-7.4) for 1-2 hours at 4-5°C. Subseguently pellets were post-osmicated in 1% OsO4 at room temperature for 1-2 hours. Following dehydration these were embedded in Araldite mixture in plastic capsules and polymerization was effected for 2 days at 60°C. Ultrathin sections were cut in a ultrotome and sections were double stained with Uranyl acetate and lead citrate. These were viewed in a TEM.

Biological and Behavioral Response Studies of Marine Mammals in Southern California, 2010 (SOCAL-10")"

2011 ◽  
Author(s):  
B. Southall ◽  
J. Calambokidis ◽  
P. Tyack ◽  
D. Moretti ◽  
J. Hildebrand ◽  
...  
Keyword(s):  
Behavioral Response ◽  
Marine Mammals ◽  
Southern California
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