Marine reserve use by a migratory coastal shark, Carcharias taurus

Dwyer, Ross G.; Rathbone, Michaela; Foote, Deborah L.; Bennett, Michael B.; Butcher, Paul A.; Otway, Nicholas M.; Louden, Brett M.; Jaine, Fabrice R. A.; Franklin, Craig E.; Kilpatrick, Carley

doi:10.1016/j.biocon.2023.110099

Cited by 4 publications

(4 citation statements)

References 53 publications

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“…The other two species were the Indo-Pacific leopard shark Stegostoma tigrinum and the grey nurse shark Carcharias taurus , which were tagged by other agencies (University of Sunshine Coast, Queensland Parks and Wildlife Service & Partnerships, Sea World, and Biopixel Oceans Foundation). Both species are of high tourism value and conservation concern in Australia (grey nurse shark) and internationally (Indo-Pacific leopard shark) [ 16 , 39 – 41 ].…”

Section: Effectiveness Of the Enhanced Queensland Arraymentioning

confidence: 99%

“…The enhanced Queensland array provided further data on when and where those species go, showing that some species move far beyond the locations where individuals were originally tagged [ 53 ]. A study into the conservation effectiveness of MPAs for protecting the critically endangered east Australian population of grey nurse sharks benefited from the additional detections away from focal aggregation sites, providing new information on where individuals go when they disperse away from protected area boundaries and could aid in finding new aggregation sites [ 16 ]. In another example, information on movement ecology and post-release survival gained from detections of black jewfish contributed to a recent fisheries stock assessment [ 41 ].…”

Section: Accomplishments Lessons Learnt and Future Of The Queensland ...mentioning

confidence: 99%

“…Acoustic receiver array designs vary from grid patterns aimed at maximising coverage of specific areas [e.g. within marine reserve boundaries; 16 ], to arrangements that encircle geomorphological features such as offshore reefs or seamounts [ 17 , 18 ], and large-scale arrays that incorporate receiver gates or curtains to record movements among embayments, estuaries [ 19 ], or along coastlines [e.g. 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

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From little things big things grow: enhancement of an acoustic telemetry network to monitor broad-scale movements of marine species along Australia’s east coast

Barnett,

Jaine,

Bierwagen

et al. 2024

Mov Ecol

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Background Acoustic telemetry has become a fundamental tool to monitor the movement of aquatic species. Advances in technology, in particular the development of batteries with lives of > 10 years, have increased our ability to track the long-term movement patterns of many species. However, logistics and financial constraints often dictate the locations and deployment duration of acoustic receivers. Consequently, there is often a compromise between optimal array design and affordability. Such constraints can hinder the ability to track marine animals over large spatial and temporal scales. Continental-scale receiver networks have increased the ability to study large-scale movements, but significant gaps in coverage often remain. Methods Since 2007, the Integrated Marine Observing System’s Animal Tracking Facility (IMOS ATF) has maintained permanent receiver installations on the eastern Australian seaboard. In this study, we present the recent enhancement of the IMOS ATF acoustic tracking infrastructure in Queensland to collect data on large-scale movements of marine species in the northeast extent of the national array. Securing a relatively small initial investment for expanding receiver deployment and tagging activities in Queensland served as a catalyst, bringing together a diverse group of stakeholders (research institutes, universities, government departments, port corporations, industries, Indigenous ranger groups and tourism operators) to create an extensive collaborative network that could sustain the extended receiver coverage into the future. To fill gaps between existing installations and maximise the monitoring footprint, the new initiative has an atypical design, deploying many single receivers spread across 2,100 km of Queensland waters. Results The approach revealed previously unknown broad-scale movements for some species and highlights that clusters of receivers are not always required to enhance data collection. However, array designs using predominantly single receiver deployments are more vulnerable to data gaps when receivers are lost or fail, and therefore “redundancy” is a critical consideration when designing this type of array. Conclusion Initial results suggest that our array enhancement, if sustained over many years, will uncover a range of previously unknown movements that will assist in addressing ecological, fisheries, and conservation questions for multiple species.

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Section: Effectiveness Of the Enhanced Queensland Arraymentioning

confidence: 99%

Section: Accomplishments Lessons Learnt and Future Of The Queensland ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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From little things big things grow: enhancement of an acoustic telemetry network to monitor broad-scale movements of marine species along Australia’s east coast

Barnett,

Jaine,

Bierwagen

et al. 2024

Mov Ecol

Self Cite

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“…Sand tigers make long seasonal migrations correlated with their reproductive cycles (Gilmore, 1993;Lucifora et al, 2002;Dicken et al, 2007;Teter et al, 2015;Haulsee et al, 2018;Dwyer et al, 2023) and often display high site fidelity (Olbers and Smith, 2019;Paxton et al, 2019;Marens, 2021;Hoschke et al, 2023). Along the US Atlantic coast, their generalized movement pattern includes annual north-south migrations.…”

Section: Introductionmentioning

confidence: 99%

Community science informs movement and reproductive ecology of sand tigers Carcharias taurus off North Carolina, United States of America

Price,

McClanahan,

Burge

et al. 2024

Front. Mar. Sci.

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Sand tigers are frequently observed at shipwrecks and other artificial reef habitats off North Carolina (USA), but data about occupancy, movement ecology, and site fidelity are lacking. Spot A Shark USA researchers used Wildbook© photoidentification software to spot map sand tigers in images provided by recreational SCUBA divers, or collected from remotely operated vehicles, and an offshore live-streaming camera. We uniquely identified 1837 sand tigers, 101 of which were resighted on more than one date between 2005–2021. Sand tigers of both sexes and various ages were found year-round along the northern, central and southern coast. We identified shipwrecks or artificial reef sites with consistently high numbers of shark encounters reported, sometimes with seasonal occupancy patterns. Resighted sharks were often encountered at the same or nearby locations, confirming high levels of residency and site fidelity to specific locations. Together, the mating scars seen on 121 female sand tigers and 202 females documented with rotund abdomens consistent with pregnancy highlight the importance of NC waters for reproduction. We also quantified other characteristics of the sand tigers visible in the photographs including wounds, parasitic copepods, and attached fishing gear. Our results reflect the importance of habitats off the NC coast to the movement and reproductive ecology of sand tigers at multiple life history stages. Sand tiger populations have declined in the Northwest Atlantic, so information about residence at specific locations, seasonal patterns of occupancy, and sex-dependent behaviors associated with migration and reproduction are important to future management and conservation of the species.

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Characteristics of Fiji’s small-scale ray fishery and its relevance to food security

Glaus,

Savou,

Brunnschweiler

2024

Marine Policy

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Marine reserve use by a migratory coastal shark, Carcharias taurus

Cited by 4 publications

References 53 publications

From little things big things grow: enhancement of an acoustic telemetry network to monitor broad-scale movements of marine species along Australia’s east coast

From little things big things grow: enhancement of an acoustic telemetry network to monitor broad-scale movements of marine species along Australia’s east coast

Community science informs movement and reproductive ecology of sand tigers Carcharias taurus off North Carolina, United States of America

Characteristics of Fiji’s small-scale ray fishery and its relevance to food security

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