DOCSLIB.ORG

CURRICULUM VITAE Full Name: Dr Richard O'driscoll Present Position

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
CURRICULUM VITAE Full Name: Dr Richard O'driscoll Present Position CURRICULUM VITAE Full name: Dr Richard O’Driscoll Present position: Programme Leader –fisheries stock assessment & monitoring Present employer: National Institute of Water and Atmospheric Research Limited Present work address: Private Bag 14–901 Wellington NEW ZEALAND 6241 Academic Qualifications: B.Sc., Dip.Sci. (Distinction), Ph.D. Years as practicing researcher: 19 Honours, distinctions, societies: Chair of ICES Working Group on Fisheries Acoustics Science and Technology 2017–19 Editorial panel ICES Journal of Marine Science since 2013 Member of ICES Working Group on Fisheries Acoustics, Science, and Technology since 1999 Member of the MFish Stock Assessment Advisory Group formed in 2009 Member of New Zealand Marine Sciences’ Society Convenor of CCAMLR Subgroup on Acoustic Surveys and Analysis Methods 2006–09 Member of CCAMLR Fish Stock Assessment Working Group 2002–06 NZ FRST Post-Doctoral Fellowship 1998 Claude McCarthy Fellowship 1996 Television New Zealand Young Achiever’s Award 1995 University of Otago Jubilee 125 Postgraduate Scholarship 1994 Bank of New Zealand Graduate Scholarship 1993 Massey Scholar 1992 Professional positions held: 2012 - Programme Leader, Fisheries Stock Assessment & Monitoring NIWA Wellington 2010 – Principal Scientist, NIWA, Wellington 2004 – 12 Group Manager, NIWA, Wellington 2000 – 03 Research Scientist, NIWA, Wellington 1998 – 00 NZ Foundation for Research Science and Technology Post-Doctoral Fellow at Memorial University of Newfoundland, Canada. 1997 – 98 Research Assistant, NIWA, Dunedin Present research speciality: Fish spatial distribution, predator-prey interactions, acoustic surveys, trawl surveys, biomass estimation. Relevant Experience: I currently lead projects to estimate abundance of middle depth and deepwater fish species using trawl and acoustic surveys. I am also involved in biodiversity research programmes in the Ross Sea (Antarctica), around New Zealand seamounts, and on the Chatham Rise. I am current chair of the ICES Working Group on Fisheries Acoustics Science and Technology, and past convenor of the Conservation of Antarctic Marine Living Resources (CCAMLR) Subgroup on Acoustic Survey Analysis Methods. I have extensive sea-going and practical fisheries experience both in New Zealand and overseas, including three Antarctic voyages. I have worked intensively with the NZ fishing industry on opportunistic acoustic data collection and I am a founder member of the Southern Ocean Network of Acoustics which aims to create a global dataset of acoustic data for multi-disciplinary studies. I am an expert editor for ICES Journal of Marine Science. I also have experience in biological sampling, catch-effort analysis, otolith collection and stomach contents analysis. Number of primary publications : 36 Number of significant publications not included above : 125 Scientific Publications Anderson, J.T.; Dalley, E.L.; O’Driscoll, R.L. (2002). Juvenile capelin ( Mallotus villosus ) off Newfoundland and Labrador in the 1990s. ICES Journal of Marine Science 59: 917–928. Churnside, J., Jech, M., and Tenningen, E. (Eds). Clement, P.M; Fjälling, A.; Jaffe, J.S.; Jones, E.G.; Lundgren, B.; Macaulay, G.J.; McElderry, H.; O’Driscoll, R.L.; Ryan, T.E.; Shortis, M.R.; Smith, S.J.; Wakefield, W.W. (2012). Fishery applications of optical technologies. ICES Cooperative Research Report No. 312 . 91 p Clark, M.; O’Driscoll, R.L. (2003). Deepwater fisheries and aspects of their impact on seamount habitat in New Zealand. Journal of Northwest Atlantic Fisheries Science 31 : 441–458. Dunford, A.J.; O’Driscoll, R.L.; Oeffner, J. (2015). Improvements in estimating an acoustic target strength–length relationship for hoki (Macruronus novaezeladiae ). Fisheries Research 162 : 12–19. Escobar-Flores, P.; O’Driscoll, R.L.; Montgomery, J.C. (2013). Acoustic characterization of pelagic fish distribution across the South Pacific Ocean. Marine Ecology Progress Series 490 : 169–183. Gauthier, S.; Oeffner, J.; O’Driscoll, R.L. (2014). Species composition and acoustic signatures of mesopelagic organisms in a subtropical convergence zone, the New Zealand Chatham Rise. Marine Ecology Progress Series 503 : 23–40. Hanchet, S.; O’Driscoll, R.; Ballara, S; Dunn, A. (2008). Grenadier bycatch in the toothfish longline fishery in the Ross Sea, Antarctica. American Fisheries Society Symposium 63 : 451–462 . Hanchet, S.M.; Stewart, A.L.; McMillan, P.J.; Clark, M.R.; O’Driscoll, R.L.; Stevenson, M.L. (2013). Diversity, relative abundance, new locality records, and updated fish fauna of the Ross Sea region. Antarctic Science 25 : 619–639. Kloser, R.; O’Driscoll, R.L. (2007). Introduction. In Karp, W.A. (ed.): Report on the Collection of Acoustic Data from Fishing Vessels. ICES Cooperative Research Report No. 287 . 95 p. Koubbi, P.; Masato, M.; Duhamel, G.; Goarant, A.; Hulley, P-A; O’Driscoll, R.; Takashi, I.; Pruvost, P.; Tavenier, E.; Hosie, G. (2012). Ecological importance of micronektonic fish for the ecoregionalisation of the Indo-Pacific sector of the Southern Ocean: role of myctophids. Deep Sea Research II 58 : 170–180. Livingston, M.E.; Hurst, R.J.; O’Driscoll, R.L.; McKenzie, A.; Ballara, S.L.; Horn, P.L. (2015). Biology and fisheries of New Zealand hoki (Macruronus novaezelandiae ). In Arancibia, H. (ed): Hakes biology and exploitation. Fish and Aquatic Resources Series 17. Wiley- Blackwell. pp 263–293. Martin Traykovski, L.V.; O’Driscoll, R.L.; McGehee, D.E. (1998). Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba : implications for inverting zooplankton spectral acoustic signatures for angle of orientation. Journal of the Acoustical Society of America 104: 2121–2135. McGehee, D.E.; O’Driscoll, R.L.; Martin Traykovski, L.V. (1998). Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz. Deep Sea Research II 45: 1273–1294. O’Driscoll, R.L. (1998). Description of spatial pattern in seabird distributions along line transects using neighbour K statistics. Marine Ecology Progress Series 165: 81–94. O’Driscoll, R.L. (1998). Feeding and schooling behaviour of barracouta ( Thyrsites atun ) off Otago, New Zealand. Marine and Freshwater Research 49: 19–24. O’Driscoll, R.L. (2003). Determining species composition in mixed species marks: an example from the New Zealand hoki ( Macruronus novaezelandiae ) fishery. ICES Journal of Marine Science 60: 609–616. O’Driscoll, R.L. (2003). Book review: Hook up on kingfish. New Zealand Journal of Marine and Freshwater Research 37: 221– 222. O’Driscoll, R.L. (2004). Estimating uncertainty associated with acoustic surveys of spawning hoki ( Macruronus novaezelandiae ) in Cook Strait, New Zealand. ICES Journal of Marine Science 61 : 84–97. O’Driscoll, R.L.; Clark, M.R. (2005). Quantifying the relative intensity of fishing on New Zealand seamounts. New Zealand Journal of Marine and Freshwater Research 39 : 839–850. O'Driscoll, R.L.; de Joux, P.; Nelson, R.; Macaulay, G.J.; Dunford, A.J.; Marriott, P.M.; Stewart, C.; Miller, B.S. (2012). Species identification in seamount fish aggregations using moored underwater video. ICES Journal of Marine Science 69 : 648– 659. O’Driscoll, R.L.; Dunford, A.J.: Dunn, A. (2016). Industry acoustic surveys of spawning southern blue whiting on the Bounty Platform, New Zealand. Fisheries Research 178 : 61–70. O’Driscoll, R.L.; Gauthier, S.; Devine, J.A. (2009). Acoustic estimates of mesopelagic fish: as clear as day and night? ICES Journal of Marine Science 66 : 1310–1317. O’Driscoll, R.L.; Hanchet, S.M.; Miller, B.S. (2012). Can acoustic methods be used to monitor grenadier (Macrouridae) abundance in the Ross Sea region? Journal of Ichthyology 52 : 700-708. O’Driscoll, R.L; Leonori, I.; De Felice, A.; Macaulay, G.J. (2017). Acoustic method of monitoring Antarctic silverfish distribution and abundance. In Vacchi, M; Pisano, E.; Ghigliotti, L. (Eds.). The Antarctic Silverfish: a Keystone Species in a Changing Ecosystem. Advances in Polar Ecology 3. Springer. pp 237–252. O’Driscoll, R.L.; Macaulay, G.J. (2005). Using fish processing time to carry out acoustic surveys from commercial vessels. ICES Journal of Marine Science 62 : 295–305. O'Driscoll, R.L.; Macaulay, G.J.; Gauthier, S.; Pinkerton, M; Hanchet, S. (2011). Distribution, abundance, and acoustic properties of Antarctic silverfish ( Pleuragramma antarcticum ) in the Ross Sea. Deep Sea Research II 58 : 181–195. O’Driscoll, R.L.; McClatchie, S. (1998). Spatial distribution of planktivorous fish schools in relation to krill abundance and local hydrography off Otago, New Zealand. Deep Sea Research II 45: 1295–1325. O’Driscoll, R.L.; Oeffner, J.; Dunford, A.J. (2013). In situ target strength estimates of optically verified southern blue whiting ( Micromesistius australis ). ICES Journal of Marine Science 70 : 431–439. O’Driscoll, R.L.; Parsons, M.J.D.; Rose, G.A. (2001). Feeding of capelin ( Mallotus villosus ) in Newfoundland waters. Sarsia 86 : 165–176. O’Driscoll, R.L.; Renner, M.; Austin, F.J.; Spencer, H.G. (1998). Distribution of seabirds in coastal waters off Otago, New Zealand. New Zealand Journal of Marine and Freshwater Research 32: 203–213. O’Driscoll, R.L.; Rose, G.A. (2001). Spatial dynamics of cod-capelin associations off Newfoundland. In Spatial Processes and Management of Fish Populations. Alaska Sea Grant, Fairbanks Alaska. pp 479–493. O’Driscoll, R.L.; Rose, G.A. (2001). In situ acoustic target strength of juvenile capelin. ICES Journal of Marine Science 58 : 342– 345. O’Driscoll, R.L.; Rose, G.A.; Anderson, J.T. (2002). Counting
Load more

Recommended publications
  • New and Emerging Technologies for Sustainable Fisheries: a Comprehensive Landscape Analysis
    Photo by Pablo Sanchez Quiza New and Emerging Technologies for Sustainable Fisheries: A Comprehensive Landscape Analysis Environmental Defense Fund | Oceans Technology Solutions | April 2021 New and Emerging Technologies for Sustainable Fisheries: A Comprehensive Landscape Analysis Authors: Christopher Cusack, Omisha Manglani, Shems Jud, Katie Westfall and Rod Fujita Environmental Defense Fund Nicole Sarto and Poppy Brittingham Nicole Sarto Consulting Huff McGonigal Fathom Consulting To contact the authors please submit a message through: edf.org/oceans/smart-boats edf.org | 2 Contents List of Acronyms ...................................................................................................................................................... 5 1. Introduction .............................................................................................................................................................7 2. Transformative Technologies......................................................................................................................... 10 2.1 Sensors ........................................................................................................................................................... 10 2.2 Satellite remote sensing ...........................................................................................................................12 2.3 Data Collection Platforms ......................................................................................................................
    [Show full text]
  • Using Acoustics to Evaluate the Effect of Fishing on School Characteristics of Walleye Pollock Haixue Shen and Terrance J
    Resiliency of Gadid Stocks to Fishing and Climate Change 125 Alaska Sea Grant College Program • AK-SG-08-01, 2008 Using Acoustics to Evaluate the Effect of Fishing on School Characteristics of Walleye Pollock Haixue Shen and Terrance J. Quinn II University of Alaska Fairbanks, Juneau Center, School of Fisheries and Ocean Sciences, Juneau, Alaska Vidar Wespestad Resources Analysts International, Lynnwood, Washington Martin W. Dorn Alaska Fisheries Science Center, Seattle, Washington Matthew Kookesh University of Alaska Fairbanks, Juneau Center, School of Fisheries and Ocean Sciences, Juneau, Alaska Abstract Walleye pollock (Theragra chalcogramma) is the target of one of the world’s largest fisheries and is an important prey species in the eastern Bering Sea (EBS) ecosystem. Little is known about the potential effects of fishing on the school characteristics and spatial distribution of walleye pollock. Few dedicated research surveys have been conducted during pollock fishing seasons, so analysis of fishery data is the only feasible approach to study these potential effects. We used acoustic data col- lected continuously by one fishing vessel in January-February 2003, which operated north of Unimak Island. Results from comparisons between two fishing periods showed significant changes of pollock distribution at different scales. The schools were smaller and denser during the second period. Furthermore, the spatial distribution of schools became sparser, as evidenced by the lower frequency of schools per elementary distance sampling unit and the increase in average 126 Shen et al.—School Characteristics of Walleye Pollock next-neighbor distances (NNDs). However, the average NND between schools within a cluster and the average abundance of clusters did not change significantly.
    [Show full text]
  • Underwater Acoustic Fisheries Surveys at Gray's Reef NMS
    Hydroacoustic surveys: A non-destructive approach to monitoring fish distributions at National Marine Sanctuaries NOAA Technical Memorandum NOS NCCOS 66 This report has been reviewed by the National Ocean Service of the National Oceanic and Atmospheric Administration (NOAA) and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for their use by the United States government. Citation for this Report Kracker, L.M. 2007. Hydroacoustic surveys: A non-destructive approach to monitoring fish distributions at National Marine Sanctuaries. NOAA Technical Memorandum NOS NCCOS 66. 24 pp. Cover photo credit: Greg McFall. Hydroacoustic surveys: A non-destructive approach to monitoring fish distributions at National Marine Sanctuaries Laura Kracker NOAA, National Ocean Service National Centers for Coastal Ocean Science Center for Coastal Environmental Health and Biomolecular Research 219 Fort Johnson Road Charleston, South Carolina 29412-9110 NOAA Technical Memorandum NOS NCCOS 66 August, 2007 United States Department of National Oceanic and National Ocean Service Commerce Atmospheric AdministrationDRAFT Carlos M. Gutierrez Conrad C. Lautenbacher, Jr. John (Jack) H. Dunnigan Secretary Administrator Assistant Administrator Laura Kracker Center for Coastal Environmental Health and Biomolecular Research (CCEHBR) National Centers for Coastal Ocean Science (NCCOS) In partnership with Gray’s Reef National Marine Sanctuary Prepared for Greg McFall Research Coordinator Gray’s Reef National
    [Show full text]
  • Underwater Acoustics for Ecosystem-Based Management: State of the Science and Proposals for Ecosystem Indicators
    Vol. 442: 285–301, 2011 MARINE ECOLOGY PROGRESS SERIES Published December 5 doi: 10.3354/meps09425 Mar Ecol Prog Ser OPENPEN ACCESSCCESS REVIEW Underwater acoustics for ecosystem-based management: state of the science and proposals for ecosystem indicators Verena M. Trenkel1,*, Patrick H. Ressler2, Mike Jech3, Marianna Giannoulaki4, Chris Taylor5 1Ifremer, rue de l’île d’Yeu, BP 21105, 44311 Nantes cedex 3, France 2Alaska Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), 7600 Sand Point Way NE, Seattle, Washington 98115, USA 3Northeast Fisheries Science Center, National Marine Fisheries Service, NOAA, 166 Water St., Woods Hole, Massachusetts 02543, USA 4Hellenic Centre for Marine Research, Institute of Marine Biological Resources, Gournes, PO Box 2214, Iraklion, Greece 5Center for Coastal Fisheries and Habitat Research, National Centers for Coastal Ocean Science, National Ocean Service, NOAA, 101 Pivers Island Road, Beaufort, North Carolina 28557, USA ABSTRACT: Ecosystem-based management (EBM) requires more extensive information than single- species management. Active underwater acoustic methods provide a means of collecting a wealth of ecosystem information with high space–time resolution. Worldwide fisheries institutes and agencies are carrying out regular acoustic surveys covering many marine shelf ecosystems, but these data are underutilized. In addition, more and more acoustic data collected by vessels of opportunity are becoming available. To encourage their use for EBM, we provide a brief introduc- tion to acoustic and complementary data collection methods in the water column, and review cur- rent and potential contributions to monitoring population abundance and biomass, spatial distrib- utions, and predator–prey relationships. Further development of acoustics-derived indicators is needed.
    [Show full text]
  • Working Group on Fisheries Acoustics Science and Technology
    Fisheries Technology Committee ICES CM 2000/B:04 REPORT OF THE WORKING GROUP ON FISHERIES ACOUSTICS SCIENCE AND TECHNOLOGY Ijmuiden/Haarlem, Netherlands 10–14 April 2000 This report is not to be quoted without prior consultation with the General Secretary. The document is a report of an expert group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the views of the Council. International Council for the Exploration of the Sea Conseil International pour l’Exploration de la Mer Palægade 2–4 DK–1261 Copenhagen K Denmark TABLE OF CONTENTS Section Page 1 TERMS OF REFERENCE .........................................................................................................................................1 2 MEETING AGENDA AND APPOINTMENT OF RAPPORTEUR.........................................................................1 3 SESSION A “FISH AVOIDANCE” ..........................................................................................................................1 3.1 G. Arnold Fish avoidance and fisheries acoustics ...........................................................................................1 3.2 P. Fernandes An investigation of fish avoidance using an Autonomous Underwater Vehicle........................2 3.3 F. Gerlotto Some observations on fish avoidance in several seas ...................................................................2 3.4 C. Wilson Consideration in the analysis of acoustic buoy data to investigate fish avoidance.........................2
    [Show full text]
  • Introducing Nature in Fisheries Research : the Use of Underwater
    Aquatic Living Resources 16 (2003) 107–112 www.elsevier.com/locate/aquliv Foreword Introducing nature in fisheries research: the use of underwater acoustics for an ecosystem approach of fish population The changes in environmental conditions require an “eco- biomass, or more directly establishing total allocated catches system approach” be adopted when considering fish popula- (TACs) based on the stock biomass. However, in many cases tions. This new approach implies the design of new concepts the contribution of fisheries acoustics remained limited. and hypotheses including knowledge on ecology, behaviour Eventually we are entering a new era, which is based upon and fisheries. Being able to observe in real time and in three two observations. dimensions the living organisms and their environment be- • It is now recognised that fisheries activity in the world comes essential. These are precisely the capabilities of un- has reached and most probably exceeded its maximum derwater acoustics, which is going to play a major role in sustainable yield (Pauly et al., 2002; Myers and Worm, aquatic ecology research. 2003). • The failures of stock management in many cases have demonstrated that the study of a fish stock indepen- 1. Introduction dently from its biology and behaviour, and more gener- ally from the ecosystem where this stock is living, usu- Based on pioneer works in the 1950s by Schaefer (1954), ally lead to erroneous conclusions on its status. Beverton and Holt (1957), Gulland (1969), Fox (1970), These two observations have oriented towards new among others, fisheries biology and its associated models of thoughts in fisheries biology, and to the conclusion that the the dynamics of populations represented a huge step forward understanding of stock dynamics would require an ecosys- in the analysis and monitoring of exploited fish populations.
    [Show full text]
  • Developments In; Fisheries Acoustics
    Rapp. P.-v. Réun. Cons. int. Explor. Mer, 189: 123-127. 1990 Day and night fish distribution pattern in the net mouth area of the Norwegian bottom-sampling trawl Arill Engås and Egil Ona Engås, Arill, and Ona, Egil. 1990. Day and night fish distribution pattern in the net mouth area of the Norwegian bottom-sampling trawl. - Rapp. R-v. Réun. Cons. int. Explor. Mer, 189: 123—127. A high-frequency scanning sonar, mounted as a net sonde, was used to study fish behaviour in the'mouth area of the Norwegian bottom-sampling trawl. Fish distribu­ tion patterns were significantly different by day and night. At night the fish entered the middle of the trawl, close to the bobbins, and no fish were observed escaping over the headline. During daytime the fish entered more irregularly, using the whole opening of the trawl, and haddock were lost over the headline. The daytime sonar observations were confirmed visually with an underwater vehicle with video camera. The observations indicate that the herding process during bottom trawling may be equally efficient by day and night, and that hearing must play a significant role in this process under non-visual conditions. Arill Engås: Institute o f Fisheries Technology Research, P.O. Box 1964, Nordnes, N-5024 Bergen, Norway. Egil Ona: Institute of Marine Research. P.O. Box 1870, Nordnes, N-5024 Bergen, Norway. non-visual conditions, with the fish showing less orien­ Introduction tation relative to the ground gear than in the daytime. If The Institute of Marine Research, Bergen, Norway, has the reaction to the trawl varies with the ambient light carried out combined bottom-trawl and acoustic surveys level, this may also affect the sampling efficiency of the on the stocks of Northeast Arctic cod and haddock in trawl.
    [Show full text]
  • Machine Learning to Improve Marine Science for the Sustainability of Living Ocean Resources Report from the 2019 Norway - U.S
    NOAA Machine Learning to Improve Marine Science for the Sustainability of Living Ocean Resources Report from the 2019 Norway - U.S. Workshop NOAA Technical Memorandum NMFS-F/SPO-199 November 2019 Machine Learning to Improve Marine Science for the Sustainability of Living Ocean Resources Report from the 2019 Norway - U.S. Workshop Edited by William L. Michaels, Nils Olav Handegard, Ketil Malde, Hege Hammersland-White Contributors (alphabetical order): Vaneeda Allken, Ann Allen, Olav Brautaset, Jeremy Cook, Courtney ​ ​ ​ S. Couch, Matt Dawkins, Sebastien de Halleux, Roger Fosse, Rafael Garcia, Ricard Prados Gutiérrez, ​ Helge Hammersland, Hege Hammersland-White, William L. Michaels, Kim Halvorsen, Nils Olav ​ ​ ​ Handegard, Deborah R. Hart, Kine Iversen, Andrew Jones, Kristoffer Løvall, Ketil Malde, Endre Moen, ​ ​ Benjamin Richards, Nichole Rossi, Arnt-Børre Salberg, , Annette Fagerhaug Stephansen, Ibrahim Umar, ​ ​ ​ Håvard Vågstøl, Farron Wallace, Benjamin Woodward November 2019 NOAA Technical Memorandum NMFS-F/SPO-199 U.S. Department National Oceanic and National Marine Of Commerce Atmospheric Administration Fisheries Service Wilbur L. Ross, Jr. Neil A. Jacobs, PhD Christopher W. Oliver Secretary of Commerce Acting Under Secretary of Commerce Assistant Administrator for Oceans and Atmosphere for Fisheries and NOAA Administrator Recommended citation: Michaels, W. L., N. O. Handegard, K. Malde, and H. Hammersland-White (eds.). 2019. Machine learning to improve marine science for the sustainability of living ocean resources: Report from the 2019 Norway - U.S. Workshop. NOAA Tech. Memo. NMFS-F/SPO-199, 99 p. ​ ​ ​ ​ Available online at https://spo.nmfs.noaa.gov/tech-memos/ The National Marine Fisheries Service (NMFS, or NOAA Fisheries) does not approve, recommend, or endorse any proprietary product or proprietary material mentioned in the publication.
    [Show full text]
  • Acoustic Biomass of Fish Associated with an Oil and Gas Platform
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Louisiana State University Louisiana State University LSU Digital Commons LSU Master's Theses Graduate School 2013 Acoustic biomass of fish associated with an oil and gas platform before, during, and after "reefing" it in the northern Gulf of Mexico Grace Elizabeth Harwell Louisiana State University and Agricultural and Mechanical College, gharwe1@tigers.lsu.edu Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_theses Part of the Oceanography and Atmospheric Sciences and Meteorology Commons Recommended Citation Harwell, Grace Elizabeth, "Acoustic biomass of fish associated with an oil and gas platform before, during, and after "reefing" it in the northern Gulf of Mexico" (2013). LSU Master's Theses. 2912. https://digitalcommons.lsu.edu/gradschool_theses/2912 This Thesis is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Master's Theses by an authorized graduate school editor of LSU Digital Commons. For more information, please contact gradetd@lsu.edu. ACOUSTIC BIOMASS OF FISH ASSOCIATED WITH AN OIL AND GAS PLATFORM BEFORE, DURING AND AFTER “REEFING” IT IN THE NORTHERN GULF OF MEXICO A Thesis Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Master of Science in The Department of Oceanography and Coastal Science By Grace E. Harwell B.S., Louisiana State University, 2009 December 2013 ACKNOWLEDGEMENTS I would like to take this opportunity to thank my advisor, Dr.
    [Show full text]
  • Bioacoustic Attenuation Spectroscopy: a New Approach to Monitoring Fish at Sea
    FEATURED ARTICLE Bioacoustic Attenuation Spectroscopy: A New Approach to Monitoring Fish at Sea Orest Diachok Introduction Swim bladders provide buoyancy and enable fish to be How does one find fishes in the sea? For millennia, catch- neutrally buoyant at their preferred depth between bouts ing fish has depended on luck for a fisherman out for a of vigorous swimming (Helfman et al., 2009). The size of day of recreation and both luck and knowledge of fish the swim bladder varies by species and is often related to behavior and ecological preferences for those seeking the size of the species. Although the swim bladder probably larger catches. Still, in many ways, finding fish, especially evolved to provide buoyancy to the fish, it is also involved in large quantities, was a “shot in the dark.” However, in other functions such as hearing and sound production this started to change when fisheries biologists started in many species (e.g., Popper and Hawkins, 2019). to apply acoustics to the hunt for fishes. The various approaches that have been used and that continue to Figure 1 shows an X-ray image of a side view of the evolve now enable fishers not only to find large groups of swim bladder of a pilchard sardine (Sardinops ocellatus). fish more efficiently and effectively but also to enable fish- Because swim bladders are generally filled with air, they ery biologists to quantify the number of fish in areas of scatter sound in various directions and are the primary interest, their migration patterns, and how their numbers cause of backscattering and the echoes detected by fish- evolve over time as well as other aspects of their behavior.
    [Show full text]
  • Reef Fish Management Is Tough: Can Fisheries Acoustics Help?
    Reef fish management is tough: Can fisheries acoustics help? Kevin M. Boswell Marine Ecology & Acoustics Lab Primary Drivers Understand factors that act to structure ecosystems, primary focus on habitat function and use by nekton - Distributional dynamics - Habitat associations and linkages - Behavior and trophic interactions Requires continued development of novel approaches - Developing advanced approaches and platforms - Assimilating data at various resolutions and scales Difficulties lie in capacity for ‘observation’ High suspended load Diel variation- Day Diel variation- Day Night Pursue avenue other than transmitted light for ‘observing’ objects Active Acoustics • Acoustics are widely accepted tool for quantifying fish abundance and distribution across multiple environmental conditions • Benefits: reduced sampling effort, non-invasive, high resolution spatio- temporal data, reduced gear bias • Challenges: Require independent data to validate backscatter Barracuda vs. Menhaden Echosounder Imaging Sonar Plankton and 10 m small scatterers Fish 20 m Natural reef Acoustics to inform fishery independent surveys Aggregation studies: Goliath grouper- East Coast of FL. Permit- FL Keys Nassau grouper- Cayman Islands Pink snapper- Western Australia West Florida Shelf: J.C. Taylor, NOAA Courtesy of Chris Dowling/Dani Waltrick Artificial vs Natural reefs Natural vs. Artificial Reef Communities West Florida Shelf- Acoustic/Optical Fisheries Independent Survey Fishery-independent method to examine structure and biomass of reef communities at natural
    [Show full text]
  • California Fish and Wildlife Journal, Volume 106, Issue 2
    California Fish and Wildlife 106(2):139-155; 2020 Feasibility of hydroacoustic surveys of spawning aggregations for monitoring Barred Sand Bass populations off southern California LARRY G. ALLEN1*, CALVIN WON1, DEREK G. BOLSER2, AND BRAD E. ERISMAN2 1 California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330-8303 USA 2 Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373 USA *Corresponding Author: larry.allen@csun.edu For fishes that migrate to specific locations to spawn within large aggregations at predictable times, fishery independent surveys of the abundance, distribu- tion, and population structure of adult fish at spawning aggregation sites can provide valuable data for fisheries monitoring and assessments. We tested the feasibility of using high resolution, split-beam sonar to estimate the distribu- tion, abundance, and group sizes of Barred Sand Bass (Paralabrax nebulifer) at their primary spawning aggregation site off Huntington Beach, California, in July 2010 and July 2012. We established an in-situ target strength distribu- tion for Barred Sand Bass using tethered fish, collected hydroacoustic data opportunistically over the entire spawning grounds, and validated acoustic data with concurrent video surveys and rod and reel sampling of fishes pres- ent within the survey area. The modal target strength of Barred Sand Bass was determined to be -35 dB and was distinct from other fish species present. Groups of Barred Sand Bass averaged 30 individuals in abundance and ranged from 2 to 1,711 individuals, with the vast majority of the groups containing less than 10 individuals. Groups of Barred Sand Bass were most abundant in the water column between 5 and 10 m below the surface over bottoms depths of 20 to 30 m, resulting in a negative relationship between group size and depth.
    [Show full text]