OHA-SIS-BIO - OBSERVATOIRE HYDROACOUSTIQUE

Type Set of cruises
Chief scientist(s) ROYER Jean-Yves ORCID
Project manager ROYER Jean-Yves ORCID
DOI 10.18142/229
Objective

OHA-SIS-BIO - Observatory of HydroAcousticity from SISmicity and Biodiversity in the Indian Ocean - is a long-term hydroacoustic program for monitoring the seismic activity and the vocal activity of large marine mammals in the southern Indian Ocean. A network of autonomous hydrophones (9 moorings, 10 hydrophones) has been deployed and yearly maintained since 2010 between La Réunion, Crozet, Kerguelen and Amsterdam islands, taking advantage of the yearly journey of R/V Marion Dufresne to these southern islands.

The hydrophone array is designed to continuously monitor the earthquake activity associated with 3 contrasted spreading ridges (16 to 70 mm/yr) and with the intraplate deformation in the southern Central Indian Basin. This approach is very effective for detecting and locating low magnitude (>2.5) earthquakes, which are not recorded by the land-based seismological networks, and for deciphering magmatic from tectonic events. The objectives are to characterize the seismic climate of mid-oceanic ridges with ultra-slow, slow and intermediate spreading rates, and the temporal and spatial distribution of the intraplate deformation.

This observatory is also designed to monitor the vocal activity of large baleen whales. Passive acoustics is a very effective tool for monitoring the presence of these acoustically very active marine mammals.  At least 5 populations of blue whales are detected by our network. The objective is to improve knowledge of the presence, abundance and seasonal migrations of these large marine mammals, classified as endangered, over several annual cycles in the Southern Indian Ocean.

Our data also display unexpected information on the sea-state and icebergs (calving, collision, dislocation). These two applications also require long time-series to validate sea-state prediction models or to monitor the evolution of the oceanic ambient noise (natural or man-made).

All these objectives have in common that they require low-frequency hydroacoustic recordings (< 120 Hz) and continuous time series as long as possible to be representative of the seismic regime of spreading ridges, the whale activity or changes in ambient noise, in these remote and inaccessible parts of the world ocean.

This program is supported by the French Research Fleet, the CNRS (INSU), the University of Brest, and the Regional Council of Brittany.

Fin whale and tabular iceberg off the southern Kerguelen Plateau (taken in January 2010 by 58°S from R/V Marion Dufresne).

Published data

Leroy Emmanuelle C, Royer Jean-Yves, Bonnel Julien, Samaran Flore (2017). Inter- and intra-annual frequency variations of large-whale calls in the southern Indian ocean. https://doi.org/10.17882/51007


Leroy Emmanuelle C., Royer Jean-Yves, Bonnel Julien, Samaran Flore (2016). Antarctic blue whales in the southern Indian Ocean: a multi-year and multi-site database of Z-call detections. https://doi.org/10.17882/46124


Bibliography

Publications

Torterotot Maëlle, Samaran Flore, Stafford Kathleen M., Royer Jean-Yves (2020). Distribution of blue whale populations in the southern Indian Ocean based on a decade of acoustic monitoring. Deep-sea Research Part Ii-topical Studies In Oceanography, 179, 104874 (16p.). https://doi.org/10.1016/j.dsr2.2020.104874


Lecoulant Jean, Guennou Claude, Guillon Laurent, Royer Jean-Yves (2019). Three-dimensional modeling of earthquake generated acoustic waves in the ocean in simplified configurations. Journal Of The Acoustical Society Of America, 146(3), 2113-2123. Publisher's official version : https://doi.org/10.1121/1.5126009 , Open Access version : https://archimer.ifremer.fr/doc/00637/74914/


Samaran Flore, Berne Adrien, Leroy Emmanuelle C, Moreira Sérgio, Stafford Kathleen M., Maia Marcia, Royer Jean-Yves (2019). Antarctic blue whales ( Balaenoptera musculus intermedia ) recorded at the Equator in the Atlantic Ocean. Marine Mammal Science, 35(2), 641-648. Publisher's official version : https://doi.org/10.1111/mms.12559 , Open Access version : https://archimer.ifremer.fr/doc/00484/59613/


Torterotot Maelle, Royer Jean-Yves, Samaran Flore (2019). Detection strategy for long-term acoustic monitoring of blue whale stereotyped and non-stereotyped calls in the Southern Indian Ocean. OCEANS 2019 - Marseille (IEEE).

Lecoulant Jean, Guennou Claude, Guillon Laurent, Royer Jean-Yves (2019). Modal propagation of ocean acoustic waves generated by earthquakes. OCEANS 2019 - Marseille (IEEE).

Leroy Emmanuelle C, Royer Jean-Yves, Bonnel Julien, Samaran Flore (2018). Long-Term and Seasonal Changes of Large Whale Call Frequency in the Southern Indian Ocean. Journal Of Geophysical Research-oceans, 123(11), 8568-8580. Publisher's official version : https://doi.org/10.1029/2018JC014352 , Open Access version : https://archimer.ifremer.fr/doc/00516/62730/


Leroy Emmanuelle C., Thomisch Karolin, Royer Jean-Yves, Boebel Olaf, Van Opzeeland Ilse (2018). On the reliability of acoustic annotations and automatic detections of Antarctic blue whale calls under different acoustic conditions. Journal Of The Acoustical Society Of America, 144(2), 740-754. https://doi.org/10.1121/1.5049803


Leroy Emmanuelle C., Samaran Flore, Stafford Kathleen M., Bonnel Julien, Royer Jean-Yves (2018). Broad-scale study of the seasonal and geographic occurrence of blue and fin whales in the Southern Indian Ocean. Endangered Species Research, 37, 289-300. Publisher's official version : https://doi.org/10.3354/esr00927 , Open Access version : https://archimer.ifremer.fr/doc/00516/62731/


Leroy Emmanuelle, Samaran Flore, Bonnel Julien, Royer Jean-Yves (2017). Identification of two potential whale calls in the southern Indian Ocean, and their geographic and seasonal occurrence. Journal Of The Acoustical Society Of America, 142(3), 1413-1427. https://doi.org/10.1121/1.5001056


Tsang-Hin-Sun Eve, Royer Jean-Yves, Perrot Julie (2016). Seismicity and active accretion processes at the ultraslow-spreading Southwest and intermediate-spreading Southeast Indian ridges from hydroacoustic data. Geophysical Journal International, 206(2), 1232-1245. Publisher's official version : https://doi.org/10.1093/gji/ggw201 , Open Access version : https://archimer.ifremer.fr/doc/00340/45165/


Leroy Emmanuelle C., Samaran Flore, Bonnel Julien, Royer Jean-Yves (2016). Seasonal and Diel Vocalization Patterns of Antarctic Blue Whale (Balaenoptera musculus intermedia) in the Southern Indian Ocean: A Multi-Year and Multi-Site Study. Plos One, 11(11), e0163587. Publisher's official version : https://doi.org/10.1371/journal.pone.0163587 , Open Access version : https://archimer.ifremer.fr/doc/00357/46828/


Socheleau Francois-Xavier, Leroy Emmanuelle, Pecci Andres Carvallo, Samaran Flore, Bonnel Julien, Royer Jean-Yves (2015). Automated detection of Antarctic blue whale calls. Journal Of The Acoustical Society Of America, 138(5), 3105-3117. https://doi.org/10.1121/1.4934271


Tsang-Hin-Sun Eve, Royer Jean-Yves, Leroy Emmanuelle C. (2015). Low-frequency sound level in the Southern Indian Ocean. Journal Of The Acoustical Society Of America, 138(6), 3439-3446. https://doi.org/10.1121/1.4936855


Ardhuin FabriceORCID, Lavanant Thibaut, Obrebski Mathias, Marie Louis, Royer Jean-Yves, D'Eu Jean-Francois, Howe Bruce M., Lukas Roger, Aucan Jerome (2013). A numerical model for ocean ultra-low frequency noise: Wave-generated acoustic-gravity and Rayleigh modes. Journal Of The Acoustical Society Of America, 134(4), 3242-3259. Publisher's official version : https://doi.org/10.1121/1.4818840 , Open Access version : https://archimer.ifremer.fr/doc/00176/28748/


References of International Seminar Communications

Ingale, V.V., Bazin, S. & Royer, J.-Y., 2021, Hydroacoustic observations of two contrasted seismic swarms along the Southwest Indian Ridge in 2018. Abstract EGU21-5131, EGU General Assembly, Vienna, Austria.

Dziak, R.P., Lau, T.K., Matsumoto, H., Mellinger, D.K., Haxel, J., Haver, S., Bohnenstiehl, D.R., Gedamke, J., Hatch, L., Lee, W.S., McKenna, M., Royer, J.-Y. & Smith, D.K., 2020, Seasonal variation of the global low-frequency ocean soundscape from 25 years of NOAA-PMEL hydrophone deployments. Abstract #644292, Ocean Sciences Meeting, San Diego, CA.

Royer, J.-Y., Beauverger, M., Torterotot, M. & Lecoulant, J., 2019, Seismic crises along the Southwest Indian Ridge: insights from hydroacoustic observations. Abstract #544476, AGU Fall Meeting, San Francisco, CA.

Royer, J.-Y., Hello, Y., Rozen, J., Yegikyan, M. & Beauverger, M., 2019, HYDROBS: a versatile long-term data-logger with messengers for monitoring the water column. Abstract EGU2019-16793, EGU General Assembly, Vienna, Austria.

Torterotot, M., Samaran, F. & Royer, J.-Y., 2019. Detection strategy for long-term acoustic monitoring of blue whale stereotyped and non-stereotyped calls in the Southern Indian Ocean. In Proceedings of OCEANS 2019 MTS/IEEE Marseille, pp. 190113-190009 Marseille, France.

Torterotot, M., Samaran, F. & Royer, J.-Y., 2019. Seasonal and geographical occurrence of blue whale stereotyped and non-stereotyped calls in the southern Indian Ocean. In Proceedings of World Marine Mammal Conference, pp., Barcelona, España.

Torterotot, M., Samaran, F. & Royer, J.-Y., 2019. Sounds from airguns and blue whales recorded from a long-term hydrophone network in the Southern Indian Ocean. In Proceedings of 178th Meeting of the Acoustical Society of America, pp. 2939, San Diego Ca, USA.

Leroy, E.C., Thomisch, K., Royer, J.-Y., Boebel, O. & Van Opzeeland, I., 2018, On the reliability of acoustic annotations and automatic detections of Antarctic blue whale calls under different acoustic conditions. 8th International DCLDE workshop, Paris.

Torterotot, M., Socheleau, F.-X., Samaran, F. & Royer, J.-Y., 2018, Automated detection of non-stereotyped whale calls using dictionary-based representations: application to blue whale D-calls. 8th International DCLDE workshop, Paris.

Leroy, E.C., Samaran, F., Bonnel, J. & Royer, J.-Y., 2017. Two new whale calls in the southern Indian Ocean, and their geographic, seasonal distribution over five sites and seven years (Abstract #2aAB6). In Proceedings of Acoustics '17 Boston, 173rd Meeting of the Acoustical Society of America, pp. 3544, Boston, MA.

Samaran, F., Royer, J.-Y., Leroy, E.C., Maia, M.A. & Stafford, K.M., 2017. Antarctic blue whales (Balaenoptera musculus intermedia) recorded north of the Equator in the Atlantic Ocean. In Proceedings of 22nd Biennial Conference of the Biology of Marine Mammals, pp., Halifax, Nova Scotia, Canada.

Peureux, C., Ardhuin, F. & Royer, J.-Y., 2016, Near field ocean surface waves acoustic radiation observation and modelling. Abstract #170499, AGU Fall Meeting, San-Francisco, CA.

Royer, J.-Y., Perrot, J., Sukhovich, A., Guennou, C. & Beauverger, M., 2016. Hydroacoustic measurements for seismology. In Proceedings of 2016 ORFEUS Observatory Coordination Meeting, pp., Dubrovnik, Croatia.

Leroy, E., Socheleau, F.-X., Carvallo Pecci, A., Samaran, F., Bonnel, J. & Royer, J.-Y., 2015, Robust detection of Antarctic blue whale calls, and comparison with classical spectrogram correlation. The 7th International DCLDE [Detection, Classification, Localization, and Density Estimation] Workshop, La Jolla, CA.

Royer, J.-Y., Perrot, J., Guennou, C., Sukhovich , A. & Maia, M., 2015. Relevance of passive hydroacoustic observatories for monitoring the high-seas marine environment. In Proceedings of IEEE/OES RIO Acoustics 2015, pp., Rio de Janeiro, Brazil.

Samaran, F., Leroy, E., Miller, B.S., Double, M. & Royer, J.-Y., 2015, Chatty Antarctic blue whales, tell me more about your calls. 21st Biennal Conference on Marine Mammals, San-Francisco, CA.

Tsang-Hin-Sun, E. & Royer, J.-Y., 2015, Contribution of seasonal presence of cetaceans, earthquakes, drifting icebergs and anthropogenic activity to the ambient noise level in the Southern Indian Ocean. Abstract EGU2015-10422, EGU General Assembly, Vienna, Austria.

Tsang-Hin-Sun, E. & Royer, J.-Y., 2015, From T-wave energy to fault parameters: empirical relationship and preliminary results from modelling. Abstract EGU2015-11782, EGU General Assembly, Vienna, Austria.

Tsang-Hin-Sun, E., Royer, J.-Y. & Perrot, J., 2015, Spatial and temporal distribution of the seismicity along two mid-oceanic ridges with contrasted spreading rates in the Indian Ocean. Abstract #62357, AGU Fall Meeting, San-Francisco, CA.

Tsang-Hin-Sun, E., Royer, J.-Y., Sukhovich , A. & Perrot, J., 2014, Analysis of the low-level seismicity along the Southern Indian Ocean spreading ridges recorded by the OHASISBIO array of hydrophones in 2012. Abstract EGU2014-1351, EGU General Assembly, Vienna, Austria.

Jamet, G., Guennou, C., Guillon, L. & Royer, J.-Y., 2013. Analysis of a T-wave simulated by a spectral element method. In Proceedings of ECUA & UAM Conference, pp., Corfu, Greece.

Royer, J.-Y., Chateau, R., D'Eu, J.-F., Guennou, C., Jamet, G., Perrot, J., Sukhovich, A., Tsang-Hin-Sun, E., Brachet, C., Guinet, C. & Samaran, F., 2013. Long-term hydroacoustic monitoring in the Atlantic and Indian Oceans. In Proceedings of IAHS - IAPSO - IASPEI Joint Assembly, pp. Abstract P2S2.06, Goteborg, Sweden.

Royer, J.-Y., D'Eu, J.-F., Sukhovich , A. & Perrot, J., 2013. Autonomous hydrophone array for long-term acoustic monitoring in remote oceans. In Proceedings of ECUA & UAM Conference, pp., Corfu, Greece.

Samaran, F., Stafford, K.M., Pressiat, G., Adam, O., Royer, J.-Y. & Guinet, C., 2013. Geographic, seasonal and diel patterns of Antarctic blue whale calls in the Indian and Southern oceans. In Proceedings of 27th European Cetacean Society Conference, pp., Setubal, Portugal.

Samaran, F., Stafford, K.M., Royer, J.-Y. & Guinet, C., 2013. Diel variation of the acoustic activity of two blue whale subspecies in the Indian and Southern Oceans. In Proceedings of 20th Biennial Conference on the Biology of Marine Mammals, pp., Dunedin, New-Zealand.

Ardhuin, F., Herbers, T., Marié, L., Royer, J.-Y., Obrebski, M., Stutsmann, E. & Schimmel, M., 2012. Low frequency noise generated by ocean waves: a consistent theory from surface gravity waves to seismic Rayleigh and waves. In Proceedings of EGU Meeting, pp. EGU2012-11535, European Geophysical Union, Vienna.

Royer, J.-Y., Perrot, J., Guennou, C., D'Eu, J.-F. & Brachet, C., 2011. Autonomous-hydrophone arrays: a powerful tool for long-term monitoring of geological processes, biological activity and iceberg tremors over large and remote areas of the ocean. In Proceedings of EGU Meeting, pp. Abstract EGU2011-8794, European Geophysical Union, Vienna.

DEA or MASTER 2 using campaign data

Fama, M., 2020. Modélisation de la génération des chorus formés par les chants de baleines, Master Dissertation, Sorbonne Université.

Weber, K.F., 2017. Passive acoustic monitoring: data processing and bioacoustic analyses, Stage M2 Erasmus+, Univ. Brest.

Verhoest, L., 2016. Traitement et analyse de données hydroacoustiques, Mémoire de stage L3, Université de Brest, Brest.

Thesis using campaign data

Torterotot, M., 2020. Traitement et analyse de signaux bioacoustiques dans l'océan Indien. Applications aux baleines bleues, PhD Dissertation, University of Brest, Brest.

Lecoulant Jean (2019). Modélisation et simulation d'ondes T : modes de Rayleigh et effets 3D / Modeling and simulating T-waves : Rayleigh modes and 3D-effects. PhD Thesis, Université de Bretagne Occidentale.


Lecoulant, J., 2019. Modélisation et simulations d'ondes-T: modes de Rayleigh et effets 3D, PhD Dissertation, Universié de Brest.

Leroy Emmanuelle (2017). Surveillance acoustique des baleines bleues Antarctique dans l’océan Indien austral : traitement, analyse et interprétation / Acoustic monitoring of Antarctic blue whales in the Southern Indian Ocean : data processing, analysis and interpretation. PhD Thesis, Université de Bretagne Occidentale.


Leroy, E., 2017. Surveillance acoustique des baleines bleues Antarctique dans l'océan Indien austral: traitement, analyse et interprétation, PhD Dissertation, Université de Brest, Brest.

Tsang-Hin-Sun Eve (2016). Dynamique spatiale et temporelle de dorsales à taux d’expansion contrastés dans l’océan Indien par une approche hydroacoustique. PhD Thesis, Université de Bretagne Occidentale.


Tsang-Hin-Sun, E., 2016. Dynamique spatiale et temporelle de dorsales à taux d'expansion contrastés dans l'océan Indien par une approche hydroacoustique, PhD Dissertation, University of Brest, Brest.