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Особенности вертикального распределения фауны звукорассеивающих слоёв в Чёрном море в осенний период IBSS Repository
Сибирцова, Е. Н..
The particularities of sound scattering layer fauna distribution in the autumn season have been explored. The main regularities of inter-relations between plankton community qualitative and quantitative characteristics and water mass hydrological parameters have been revealed.
Tipo: Book Section Palavras-chave: Sound scattering layers; Mesozooplankton; The Black Sea.
Ano: 2010 URL: http://repository.ibss.org.ua/dspace/handle/99011/1888
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Les couches diffusantes du golfe de Gascogne : caractérisation acoustique, composition spécifique et distribution spatiale ArchiMer
Remond, Barbara.
Fisheries acoustic data are continuously collected during ecosystemic surveys to detect sh schools of commercial species and to quantify the sh abundance. These multifrequency data also contain information about smaller target aggregations producing ubiquitous Sound Scat- tering Layers (SSLs) on the echograms, with quite diverse shape, frequency responses and taxonomic compositions. In this work, we focus on the SSLs observed in spring in the Bay of Biscay during the PELGAS surveys. The objectives are: i) to classify SSLs, ii) to describe their spatial meso-scale distribution, iii) to investigate their relationships with oher exosystme components, and iv) to investigate the taxonomic composition of resonant SSLs at ne scale. A Multiple Correspondence...
Tipo: Text Palavras-chave: Acoustique; Multifréquences; Couches diffusantes; Micronecton; Golfe de Gascogne; PELGAS; Acoustic; Multifrequency; Sound scattering layers; Micronekton; Bay of Biscay; PELGAS.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00267/37784/35859.pdf
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Étude par acoustique large bande de la composition et de la distribution spatiale de couches diffusantes denses dans le golfe de Gascogne ArchiMer
Blanluet, Arthur.
Intermediate trophic components of pelagic ecosystem (from mesozooplakton to micronekton) funnel energy and organic matters from primary producers to many commercial species (anchovy, sardines…). Some of these organisms are supposed to be important contributors to the ubiquitous Sound Scattering Layers (SSLs) observed over a broad range of spatio-temporal scales and geographical areas. Yet, the SSLs taxonomic composition remains largely unknown. The aim of this PhD was to describe the composition and repartition of dense SSLs observed in the Bay of Biscay (France) in spring at several spatial scales, using broadband acoustics, nets and videos. In the first chapter, we showed that the echo sounder beam widths had few effect on the SSLs backscatter,...
Tipo: Text Palavras-chave: Acoustique large bande; Couches diffusantes; Siphonophores; Imagerie du zooplancton; Golfe de Gascogne; Broadband acoustic; Sound scattering layers; Siphonophores; Zooplankton imagery; Bay of Biscay.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00497/60865/64201.pdf
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