Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea)
This work presents a computational methodology able to automatically classify the echoes of two krill species recorded in the Ross sea employing scientific echo-sounder at three different frequencies (38, 120 and 200 kHz). The goal of classifying the gregarious species represents a time-consuming ta...
Main Authors: | , , , , , , , , , , |
---|---|
Other Authors: | , , , , , , , , , , |
Format: | Conference Object |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/11588/852949 https://doi.org/10.1007/978-3-030-68780-9_7 |
id |
ftunivnapoliiris:oai:www.iris.unina.it:11588/852949 |
---|---|
record_format |
openpolar |
spelling |
ftunivnapoliiris:oai:www.iris.unina.it:11588/852949 2024-06-23T07:52:34+00:00 Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) Fontana I. Giacalone G. Rizzo R. Barra M. Mangoni O. Bonanno A. Basilone G. Genovese S. Mazzola S. Lo Bosco G. Aronica S. Fontana, I. Giacalone, G. Rizzo, R. Barra, M. Mangoni, O. Bonanno, A. Basilone, G. Genovese, S. Mazzola, S. Lo Bosco, G. Aronica, S. 2021 https://hdl.handle.net/11588/852949 https://doi.org/10.1007/978-3-030-68780-9_7 eng eng ispartofbook:Pattern Recognition. ICPR International Workshops and Challenges. ICPR 2021 ICPR International Workshops and Challenges. ICPR 2021 volume:12666 firstpage:65 lastpage:74 numberofpages:10 serie:LECTURE NOTES IN COMPUTER SCIENCE https://hdl.handle.net/11588/852949 doi:10.1007/978-3-030-68780-9_7 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85103288215 info:eu-repo/semantics/openAccess Acoustic data Krill identification Machine learning for pelagic species classification Ross Sea info:eu-repo/semantics/conferencePaper 2021 ftunivnapoliiris https://doi.org/10.1007/978-3-030-68780-9_7 2024-06-03T14:47:46Z This work presents a computational methodology able to automatically classify the echoes of two krill species recorded in the Ross sea employing scientific echo-sounder at three different frequencies (38, 120 and 200 kHz). The goal of classifying the gregarious species represents a time-consuming task and is accomplished by using differences and/or thresholds estimated on the energy features of the insonified targets. Conversely, our methodology takes into account energy, morphological and depth features of echo data, acquired at different frequencies. Internal validation indices of clustering were used to verify the ability of the clustering in recognizing the correct number of species. The proposed approach leads to the characterization of the two krill species (Euphausia superba and Euphausia crystallorophias), providing reliable indications about the species spatial distribution and relative abundance. Conference Object Euphausia superba Ross Sea Southern Ocean IRIS Università degli Studi di Napoli Federico II Southern Ocean Ross Sea 65 74 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Napoli Federico II |
op_collection_id |
ftunivnapoliiris |
language |
English |
topic |
Acoustic data Krill identification Machine learning for pelagic species classification Ross Sea |
spellingShingle |
Acoustic data Krill identification Machine learning for pelagic species classification Ross Sea Fontana I. Giacalone G. Rizzo R. Barra M. Mangoni O. Bonanno A. Basilone G. Genovese S. Mazzola S. Lo Bosco G. Aronica S. Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) |
topic_facet |
Acoustic data Krill identification Machine learning for pelagic species classification Ross Sea |
description |
This work presents a computational methodology able to automatically classify the echoes of two krill species recorded in the Ross sea employing scientific echo-sounder at three different frequencies (38, 120 and 200 kHz). The goal of classifying the gregarious species represents a time-consuming task and is accomplished by using differences and/or thresholds estimated on the energy features of the insonified targets. Conversely, our methodology takes into account energy, morphological and depth features of echo data, acquired at different frequencies. Internal validation indices of clustering were used to verify the ability of the clustering in recognizing the correct number of species. The proposed approach leads to the characterization of the two krill species (Euphausia superba and Euphausia crystallorophias), providing reliable indications about the species spatial distribution and relative abundance. |
author2 |
Fontana, I. Giacalone, G. Rizzo, R. Barra, M. Mangoni, O. Bonanno, A. Basilone, G. Genovese, S. Mazzola, S. Lo Bosco, G. Aronica, S. |
format |
Conference Object |
author |
Fontana I. Giacalone G. Rizzo R. Barra M. Mangoni O. Bonanno A. Basilone G. Genovese S. Mazzola S. Lo Bosco G. Aronica S. |
author_facet |
Fontana I. Giacalone G. Rizzo R. Barra M. Mangoni O. Bonanno A. Basilone G. Genovese S. Mazzola S. Lo Bosco G. Aronica S. |
author_sort |
Fontana I. |
title |
Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) |
title_short |
Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) |
title_full |
Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) |
title_fullStr |
Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) |
title_full_unstemmed |
Unsupervised Classification of Acoustic Echoes from Two Krill Species in the Southern Ocean (Ross Sea) |
title_sort |
unsupervised classification of acoustic echoes from two krill species in the southern ocean (ross sea) |
publishDate |
2021 |
url |
https://hdl.handle.net/11588/852949 https://doi.org/10.1007/978-3-030-68780-9_7 |
geographic |
Southern Ocean Ross Sea |
geographic_facet |
Southern Ocean Ross Sea |
genre |
Euphausia superba Ross Sea Southern Ocean |
genre_facet |
Euphausia superba Ross Sea Southern Ocean |
op_relation |
ispartofbook:Pattern Recognition. ICPR International Workshops and Challenges. ICPR 2021 ICPR International Workshops and Challenges. ICPR 2021 volume:12666 firstpage:65 lastpage:74 numberofpages:10 serie:LECTURE NOTES IN COMPUTER SCIENCE https://hdl.handle.net/11588/852949 doi:10.1007/978-3-030-68780-9_7 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85103288215 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/978-3-030-68780-9_7 |
container_start_page |
65 |
op_container_end_page |
74 |
_version_ |
1802643910187548672 |