Accession Number ADA571586
Title Bio-Alpha off the West Coast.
Publication Date Sep 2012
Media Count 7p
Personal Author O. Diachok
Abstract LONG-TERM GOALS: Develop quantitative models of the effects of fish with swim bladders on attenuation (bio-alpha), transmission loss, and scintillation index in the ocean. OBJECTIVES: Conduct an experiment off the west coast to determine the effects of hake and sardines, the dominant species of fish with swim bladders off the west coast of the USA, on attenuation (bio- alpha), transmission loss (TL) and scintillation index (SI). Determine the effects of gas production and removal from swim bladders of hake, a physoclist, on the temporal evolution of resonance frequencies. Isolate the effects of hake from the effects of sardines and anchovies, which may be present in large numbers during the experiment. Determine bubble cloud effects of schools of sardines and hake.
Keywords Attenuation
Bubbles
Clouds
Coastal regions
Fishes
Gases
Hake
Measurement
Models
Production
Sardines
Scintillation
Swim bladders
Transmission loss


 
Source Agency Non Paid ADAS
NTIS Subject Category 57C - Botany
57Z - Zoology
47D - Biological Oceanography
Corporate Author Johns Hopkins Univ., Laurel, MD. Applied Physics Lab.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1316
Contract Number N00014-11-1-0304

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