scholarly journals Low frequency scattering from fish schools: A comparison of two models

2014 ◽  
Author(s):  
Maria P. Raveau ◽  
Christopher Feuillade
Keyword(s):  
Low Frequency ◽  
Fish Schools

The low‐frequency scattering action of fish schools

1994 ◽  
Vol 95 (5) ◽  
pp. 3020-3020
Author(s):  
Joel Garrelick ◽  
Miguel C. Junger ◽  
Mary L. Lamberton
Keyword(s):  
Low Frequency ◽  
Fish Schools

Low frequency scattering from fish schools: A comparison of two models

2013 ◽  
Vol 134 (5) ◽  
pp. 3990-3990
Author(s):  
Maria P. Raveau ◽  
Christopher Feuillade
Keyword(s):  
Low Frequency ◽  
Fish Schools

Low frequency scattering from dynamic fish schools based on collective animal behavior modeling

2015 ◽  
Vol 137 (4) ◽  
pp. 2361-2361
Author(s):  
Simón E. Alfaro ◽  
Jorge Cellio ◽  
Maria P. Raveau ◽  
Christopher Feuillade
Keyword(s):  
Animal Behavior ◽  
Low Frequency ◽  
Behavior Modeling ◽  
Fish Schools ◽  
Collective Animal Behavior

scholarly journals Low frequency scattering from dynamic fish schools based on collective animal behavior modeling

2015 ◽  
Author(s):  
Simon E. Alfaro ◽  
Jorge Cellio ◽  
Maria P. Raveau ◽  
Christopher Feuillade
Keyword(s):  
Animal Behavior ◽  
Low Frequency ◽  
Behavior Modeling ◽  
Fish Schools ◽  
Collective Animal Behavior

scholarly journals Impact of naval sonar signals on Atlantic herring (Clupea harengus) during summer feeding

2012 ◽  
Vol 69 (6) ◽  
pp. 1078-1085 ◽  
Author(s):  
Lise Doksæter Sivle ◽  
Petter Helgevold Kvadsheim ◽  
Michael A. Ainslie ◽  
Andrew Solow ◽  
Nils Olav Handegard ◽  
...  
Keyword(s):  
Killer Whale ◽  
Low Frequency ◽  
Clupea Harengus ◽  
Atlantic Herring ◽  
Norwegian Sea ◽  
Fish Schools ◽  
Active Sonar ◽  
Sound Exposure ◽  
Free Ranging ◽  
Summer Feeding

Abstract Sivle, L. D., Kvadsheim, P. H., Ainslie, M. A., Solow, A., Handegard, N. O. Nordlund, N., and Lam, F-P. A. 2012. Impact of naval sonar signals on Atlantic herring (Clupea harengus) during summer feeding. – ICES Journal of Marine Science, 69: 1078–1085. Naval anti-submarine sonars produce intense sounds within the hearing range of Atlantic herring (Clupea harengus). In this study, schools of Atlantic herring were exposed to sonar signals of 1–2 kHz (low-frequency active sonar, LFAS) and 6–7 kHz (mid-frequency active sonar, MFAS) and playbacks of killer whale feeding sounds during their summer feeding migration in the Norwegian Sea. The fish schools neither significantly dived nor changed their packing density in response to the LFAS and MFAS transmissions received by the fish at estimated sound pressure levels (SPLs; RMS) up to 176 and 157 dB re 1 μPa and estimated cumulative sound exposure levels up to 181 and 162 dB re 1 μPa² s, respectively. In contrast, killer whale feeding sounds induced diving responses at received SPLs at ∼150 dB re 1 μPa. Herring behaviour was studied by using a 116-kHz hull mounted fishery sonar. This seems a promising method for studying the behaviour of free-ranging fish in situations in which other methods are difficult to use, such as migrating schools and fish close to the surface.

A Study on the Fine Structure of the Lateral Line Organ of the Sea Eel

1973 ◽  
Vol 31 ◽  
pp. 648-649
Author(s):  
K. Hama
Keyword(s):  
Fine Structure ◽  
Electron Microscope ◽  
Lateral Line ◽  
Low Frequency ◽  
Sensory Cells ◽  
Apical Surface ◽  
Voltage Electron ◽  
Sensory Epithelia ◽  
Low Frequency Vibration ◽  
Transmission Electron

The lateral line organs of the sea eel consist of canal and pit organs which are different in function. The former is a low frequency vibration detector whereas the latter functions as an ion receptor as well as a mechano receptor.The fine structure of the sensory epithelia of both organs were studied by means of ordinary transmission electron microscope, high voltage electron microscope and of surface scanning electron microscope.The sensory cells of the canal organ are polarized in front-caudal direction and those of the pit organ are polarized in dorso-ventral direction. The sensory epithelia of both organs have thinner surface coats compared to the surrounding ordinary epithelial cells, which have very thick fuzzy coatings on the apical surface.

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