Pulling or drilling, does size or species matter? An experimental study of prey handling in Octopus dierythraeus

2003 ◽  
Vol 290 (2) ◽  
pp. 165-178 ◽  
Author(s):  
Mike A. Steer ◽  
Jayson M. Semmens
Keyword(s):  
Experimental Study ◽  
Prey Handling

Prey handling time in two piscivores, Esox americanus vermiculatus and Micropterus salmoides, with contrasting mouth morphologies

1988 ◽  
Vol 66 (2) ◽  
pp. 540-542 ◽  
Author(s):  
James A. Hoyle ◽  
Allen Keast
Keyword(s):  
Experimental Study ◽  
Body Weight ◽  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Lepomis Macrochirus ◽  
Handling Time ◽  
Maximum Size ◽  
Ecological Significance ◽  
Mouth Width ◽  
Prey Handling

An experimental study was carried out on prey handling time (from initial seizure of prey to completion of swallowing movements) in the grass pickerel (Esox americanus vermiculatus), using bluegill (Lepomis macrochirus) as prey. Esox differs from the largemouth bass (Micropterus salmoides), which was studied previously, in having a more specialized dentition. It was found that for individuals of the same mouth width (20 mm), handling time was 40–80% less in Esox for bluegill prey of total length 20–50 mm. Further, "optimal" and maximum size of prey consumed were 56 and 46% larger, respectively, for the esocid. The results are also related to body weight and age in Esox and Micropterus and the ecological significance of the findings is discussed.

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

An Experimental Study of Some Properties of Stuttered Words

1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  
Experimental Study

Experimental study of total body washout employing extracorporeal circulation and hypothermia

1974 ◽  
Vol 126 (2) ◽  
pp. 243-248
Author(s):  
A WAKABAYASHI ◽  
T KUBO ◽  
K CHARNEY ◽  
Y NAKAMURA ◽  
J CONNOLLY
Keyword(s):  
Experimental Study ◽  
Extracorporeal Circulation ◽  
Total Body

Gastric Freezing: An Experimental Study

1963 ◽  
Vol 45 (3) ◽  
pp. 374-383 ◽  
Author(s):  
Donald C. McIlrath ◽  
George A. Hallenbeck ◽  
Hubert A. Allen ◽  
Charles V. Mann ◽  
Edward J. Baldes ◽  
...  
Keyword(s):  
Experimental Study

The Effect of Cortisone and Corticotropin on The Healing of Gastric Ulcer: An Experimental Study

1958 ◽  
Vol 34 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Henry D. Janowitz ◽  
Vernon A. Weinstein ◽  
Rhoda G. Shaer ◽  
James F. Cereghini ◽  
Franklin Hollander
Keyword(s):  
Experimental Study ◽  
Gastric Ulcer
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