A ONE-YEAR COLLECTION OF LONG-RANGE ECHO RECORDS OF FISH BEHAVIOR

Weston, D. E.; Revie, J.; Wearden, G.

A ONE-YEAR COLLECTION OF LONG-RANGE ECHO RECORDS OF FISH BEHAVIOR

1964

Weston, D. E. | Revie, J. | Wearden, G.

Echo-ranging records have been obtained at Perranporth over a period of about one year, some being continuous over several days. Broadly speaking there are three types of trace, all of them at least partly biological in origin: wrigglers, fixed bottom echoes and diffuse patterns. Fish behaviour is displayed continuously out to 40 miles, and is especially complex near dawn and dusk.

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Mots clés AGROVOC

acoustics behavior classification fishes noise photographs united kingdom

Informations bibliographiques

D'autres materias

Physical and dynamic oceanography; *echo ranging; Recording paper; Foreign reports; Pulse analyzers; Diurnal variations; Periodic variations; Recording systems; Noise analyzers; Ocean bottom

Langue

anglais

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http://stinet.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0361142Approved for public release; distribution is unlimited. Document partially illegible.

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Text

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ADMIRALTY RESEARCH LAB TEDDINGTON (UNITED KINGDOM)DTIC

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ADMIRALTY RESEARCH LAB TEDDINGTON (UNITED KINGDOM)

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A ONE-YEAR COLLECTION OF LONG-RANGE ECHO RECORDS OF FISH BEHAVIOR

1964

Mots clés AGROVOC

Informations bibliographiques