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River Listening: Acoustic Ecology

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River Listening: Acoustic Ecology RIVER LISTENING: ACOUSTIC ECOLOGY adopts an acoustic ecology approach by exploring acoustic AND AQUATIC BIOACOUSTICS IN GLOBAL patterns from a holistic perspective that incorporates the physi- RIVER SYSTEMS cal habitat of the river ecosystem [4]. Leah Barclay, Griffith University, Brisbane, Australia. The scientific grounding for River Listening is led by fresh- Email: <[email protected]>. water ecologist Dr Simon Linke. Dr Linke’s pioneering work in biomonitoring and river conservation planning has been Toby Gifford, Griffith University, Brisbane, Australia. used by agencies and NGOs from South East Queensland to Email: <[email protected]>. the Congo and he has recently been investigating aquatic bioa- Simon Linke, Griffith University, Brisbane, Australia. coustics and real-time ecosystem monitoring in freshwater Email <[email protected]>. environments using passive acoustics. Dr Linke believes that classic techniques for measuring aquatic biodiversity are prob- See <mitpressjournals.org/toc/leon/51/3> for supplemental files associated lematic as they potentially injure the study organism (such as with this issue. electrofishing) and can be bias as they only provide a brief balance-unbalance 2015–2016, part 2 Submitted: 21 October 2016 snapshot at the time of observation. He believes that passive Abstract acoustics presents a noninvasive and unexplored approach to River Listening is an interdisciplinary research project exploring the freshwater ecosystem monitoring. This theory is shared by Dr cultural and biological diversity of global river systems through Toby Gifford, the third collaborator on River Listening who is sound. The project examines the creative possibilities of accessible a music technologist and software programmer active in a wide and noninvasive recording technologies to monitor river health and engage local communities in the conservation of global river systems. spectrum of interdisciplinary collaborations. River Listening combines emerging fields of science with acoustic River Listening was initially developed across four Queens- ecology, creativity and digital technology to further the understanding of aquatic biodiversity and inspire action at a time when the conserva- land river systems: the Brisbane River, the Mary River, the tion and management of freshwater ecosystems is a critical priority. Noosa River and the Logan River. The initial phase of the pro- ject involved listening labs, field recording, sound mapping, River Listening was developed through a Synapse Residency performances and installations to experiment with hydrophonic awarded to Dr Leah Barclay and The Australian Rivers Insti- recording, virtual technologies and community engagement in tute in 2014. The Synapse program is a joint initiative of the understanding river health and aquatic biodiversity. The pro- Australia Council for the Arts and the Australian Network for cess involved not just recording and listening, but collaborat- Art and Technology, which supports research collaborations ing with communities, exploring scientific measurement tools, between leading artists and scientists in Australia. The first comparing aquatic soundscapes, and responding and adapting phase of River Listening was designed to explore the artistic to other processes that emerged. River Listening has expanded and scientific possibilities of hydrophone (underwater) record- into various other communities across Australia, Europe and ing and inspire community engagement through interactive North America and has established an interdisciplinary frame- workshops, recording expeditions and installations designed to work that is adaptable and responsive to each community and draw attention to the sounds beneath the surface of the river. river system. This process involves workshops, hydrophone The creative foundations for River Listening emerged out of recording, sound mapping and collaborative installations. Edu- a body of Leah Barclay’s artistic practice spanning 10 years of cation and community engagement remains to be a core focus collaboration with river communities across the world. These of River Listening and many of the leading scholars in fresh- creative projects involve live performances, immersive instal- water bioacoustics have been actively advocating for educa- lations and interdisciplinary collaborations designed to bring tion. This includes Dr. Rodney Rountree, a marine biologist attention and awareness to rivers as the lifeblood of communi- and fish ecologist who predicted “with the advent of new ties [1]. Sound Mirrors (2009–2011) and The DAM(N) Project acoustic technologies, passive acoustics will become one of the (2011–2013) were among the largest of these initiatives, in- most important and exciting areas of fisheries research in the volving collaborations with remote communities across India, next decade” [5]. While he has produced some of the most Brazil, China and Australia. During these projects, the value of important scientific studies on soniferous fish, he has placed hydrophone recordings as a monitoring tool for river health equal importance on public outreach and education, including became apparent. Looking at the surface of a river, it is virtual- producing a children’s e-book titled Listening to Fish: New ly impossible to detect the health of the ecosystem. The hydro- Discoveries in Science available from his website [6]. phones provided access to another way of understanding the It should be noted that the practice of recording underwater river and often exposed a dynamic and engaging soundscape sounds of rivers with hydrophones is not considered new or just beneath the surface. The impacts of climate change are emerging in artistic disciplines; it has been pursued by artists often visible in terrestrial environments, yet dramatic changes for decades. Annea Lockwood has been actively recording riv- in river systems can go unnoticed simply due to visibility. ers since the 1960s, beginning with her river archive of field Considering the current biodiversity crisis and the dramatic recordings which evolved into her iconic river sound maps; A impact on freshwater ecosystems, it would seem logical for Sound Map of the Hudson River (1982), A Sound Map of the aquatic bioacoustics to be an active monitoring tool in river Danube (2005) and A Sound Map of the Housatonic River systems. Recent years have seen a dramatic increase in bioa- (2010) [7]. The soundscapes of rivers feature prominently in the coustics and ecoacoustics for non-invasive environmental work of Ros Bandt, particularly in compositions including monitoring, yet the large majority of this work has focused on Voicing the Murray (1996) and Blue Gold (2005) [8]. Julie terrestrial and marine environments, with very few studies Freeman’s work The Lake (2005) used an array of hydrophones exploring freshwater environments. Initial studies in the 1960s to track fish in real-time for a period of six weeks. Freeman focused on identifying and cataloging soniferous fish sounds used a sophisticated electronic tagging system to transform the [2] while more recent research in France has taken an natural biological movement of the fish into sound for a site- ecoacoutics approach by studying acoustic communities in specific installation [9]. David Monacchi’s multi-channel com- freshwater environments [3]. Research led by Diego Tonolla position Stati d'Acqua (2006) brought attention to the Tiber 298 LEONARDO, Vol. 51, No. 3, pp. 298–299, 2018 doi:10.1162/LEON_a_01516 ©2018 ISAST Downloaded from http://www.mitpressjournals.org/doi/pdf/10.1162/leon_a_01516 by guest on 01 October 2021 River in Rome through processed field recordings exploring the designed to bring attention to rivers through acoustic ecology, physical transformations of water [10]. Jana Winderen is an creative technology and community engagement while being artist with a background in mathematics, chemistry and fish deeply grounded in the scientific possibilities of hydrophone ecology that has explored the sounds of underwater insects as a recording. The international interest in the possibilities of measure for freshwater health. Winderen’s most recent installa- aquatic bioacoustics and ecoacoustics continues to expand and tion Vandrere (2016) examines the fish migrations in the Aker there are clear opportunities to harness virtual technologies to River and inner Oslo Fjord through underwater recordings that develop accessible community engagement around the creative are juxtaposed with sounds from other aquatic environments and scientific possibilities of listening to the environment. The where fish and mammals migrate [11]. These examples are necessary recording technologies have become increasingly just a selection of artists pioneering the use of hydrophone re- accessible and affordable, so empowering local communities to cordings to inspire scientists and bring awareness to freshwater undertake the mapping of environmental change in collabora- ecosystems. tion with artists and scientists is now realistic and possible. The creative outcomes from River Listening, including in- River Listening is a catalyst for interdisciplinary thinking at balance-unbalance 2015–2016, part 2 stallations and performances drawing on our evolving database a time when the management of aquatic ecosystems is a critical of hydrophone recordings, are central to our public engage- priority. We urgently need to engage communities in river ment and awareness efforts. The interdisciplinary balance of conservation
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