Fine-scale movement and activity patterns of Caribbean reef sharks (Carcharhinus perezi) in the Bahamas

Shipley, Oliver N.; Brownscombe, Jacob W.; Danylchuk, Andy J.; Cooke, Steven J.; O’Shea, Owen R.; Brooks, Edward J.

doi:10.1007/s10641-017-0656-4

Cited by 23 publications

(24 citation statements)

References 41 publications

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“…Future work should also combine biologgers with acoustic telemetry to determine diel spatial ecology of individuals. By using a combination of methods which quantify both movement and shifts in position, home ranges, foraging strategies and patterns of space use become clearer (Legare, Skomal, & DeAngelis, ; Papastamatiou et al, ; Shipley et al, ). We suggest further study on free‐ranging Port Jackson sharks to collect information over a longer temporal scale particularly in regard to seasonal and sex‐specific movements across habitats and the routes taken during migration.…”

Section: Discussionmentioning

confidence: 99%

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Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Kadar

Ladds

Mourier

et al. 2019

Ecology and Evolution

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Distinguishing the factors that influence activity within a species advances understanding of their behavior and ecology. Continuous observation in the marine environment is not feasible but biotelemetry devices provide an opportunity for detailed analysis of movements and activity patterns. This study investigated the detail that calibration of accelerometers measuring root mean square (RMS) acceleration with video footage can add to understanding the activity patterns of male and female Port Jackson sharks (Heterodontus portusjacksoni) in a captive environment. Linear regression was used to relate RMS acceleration output to time‐matched behavior captured on video to quantify diel activity patterns. To validate captive data, diel patterns from captive sharks were compared with diel movement data from free‐ranging sharks using passive acoustic tracking. The RMS acceleration data showed captive sharks exhibited nocturnal diel patterns peaking during the late evening before midnight and decreasing before sunrise. Correlation analysis revealed that captive animals displayed similar activity patterns to free‐ranging sharks. The timing of wild shark departures for migration in the late breeding season corresponded with elevated diel activity at night within the captive individuals, suggesting a form of migratory restlessness in captivity. By directly relating RMS acceleration output to activity level, we show that sex, time of day, and sex‐specific seasonal behavior all influenced activity levels. This study contributes to a growing body of evidence that RMS acceleration data are a promising method to determine activity patterns of cryptic marine animals and can provide more detailed information when validated in captivity.

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Section: Discussionmentioning

confidence: 99%

“…The first 24 hr was excluded for each individual that underwent dorsal attachment due to elevated (Whitney et al, ) or irregular (Shipley et al, ) activity that can occur post‐tagging. Individuals that underwent harness attachment were not removed from the water, therefore no data were excluded.…”

Section: Methodsmentioning

confidence: 99%

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Kadar

Ladds

Mourier

et al. 2019

Ecology and Evolution

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“…In addition, since acoustic telemetry is inferentially limited to the area of the array, conventional tags or DSTs could be used in conjunction with acoustic telemetry to somewhat mediate these limitations and provide additional geolocational information about movement, migration and habitat use when individuals move outside of the array. When applied to relatively closed systems, a combined tagging approach has provided lucrative information pertaining to movement and migration (see review by Hussey et al., ), activity (Shipley et al., ) and social interactions (Jacoby, Brooks, Croft, & Sims, ) of poorly studied marine fishes.…”

Section: Contemporary Movement Studies and The Development Of Novel Mmentioning

confidence: 99%

“…The combination of single sensors (e.g., temperature sensors, accelerometers, GPS tags) and use of multi‐sensor technologies have become increasingly utilized by the scientific community (e.g., Papastamatiou, Iosilevskii, et al., ; Papastamatiou, Watanabe, et al., ; Shipley et al., ). These approaches can further contextualize movements by providing additional information on an individual's behaviour.…”

Section: Contemporary Movement Studies and The Development Of Novel Mmentioning

confidence: 99%

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Skating on thin ice: Identifying the need for species‐specific data and defined migration ecology of Rajidae spp.

2018

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Skates (class Chondrichthyes; subclass Elasmobranchii; order Rajiformes; family Rajidae) comprise one quarter of extant chondrichthyans, yet have received little attention in the scientific literature likely due to their relatively low economic value and difficulties in species identification. The absence of species‐specific information on catch, life history and migration of skates has often precluded the development of single‐species stock assessments and led to the use of cursory multispecies assessments, which lack the ability to track species‐specific catch and abundance trends. This has resulted in undetected local extirpations, as has been previously reported for common (Dipturus batis, Rajidae), white (Rostroraja alba, Rajidae) and long‐nose (Dipturus oxyrhinchus, Rajidae) skates in the Irish Sea. Here, we (a) use case studies to illustrate how the perception of skate population structure and stock status has historically been masked through multispecies assessment and management practices, (b) review current information on the movement of skates and identify gaps in knowledge, and (c) identify biases associated with the use of various tagging technologies, which have confounded our understanding of movement and migration ecology of skates. Considering that over 40% of extant Rajidae species are listed as “Data Deficient” by the International Union for Conservation of Nature, we illustrate a critical need to broaden the current understanding of skate life history, movement and migration ecology by providing recommendations on the further application of electronic tags and biogeochemical natural tags in movement studies and highlight the benefits that studies using these approaches have for novel management frameworks.

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Migration and Residency of Sandbar, Atlantic Sharpnose, Bull, and Nurse Sharks in the Northern Gulf of Mexico

Altobelli

Szedlmayer

2020

N American J Fish Manag

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Acoustic telemetry was used to monitor the movements and residency of Sandbar Sharks Carcharhinus plumbeus, Atlantic Sharpnose Sharks Rhizoprionodon terraenovae, Bull Sharks Carcharhinus leucas, and Nurse Sharks Ginglymostoma cirratum around artificial reefs in the northern Gulf of Mexico. Transmitter-tagged sharks were monitored from November 2012 to July 2019. Residency comparisons were based on the percentage of days that an individual was present in the study area for each month. Sandbar Sharks had greater residencies in fall than spring and winter, Bull Sharks had greater residencies in summer, and Nurse Sharks had greater residencies in the fall. No seasonal patterns were detected for Atlantic Sharpnose Sharks, but one individual returned to the study area in all 5 years that the transmitter was active. One Sandbar Shark and one Nurse Shark had long-term preferences (>3 years) for specific sites. Long-distance migrations (n = 7) away from the artificial reef area in the northern Gulf of Mexico were observed for three Sandbar Sharks (588, 589, and 1,894 km), two Bull Sharks (927 and 968 km), and two Nurse Sharks (903 and 943 km), with six of these migrating sharks returning to their tagging areas. Specifically, two Bull Sharks and two Nurse Sharks made winter migrations to the southern end of Florida (Florida Keys), and two Sandbar Sharks migrated to the middle of the west coast of Florida. A third Sandbar Shark made the longest distance migration and moved out of the Gulf of Mexico, into the Atlantic Ocean, and up to the South Carolina coast. Importantly, this Sandbar Shark returned to the same artificial reef where it was tagged and released in the northern Gulf of Mexico after its 3,788-km round trip migration. These long-distance migrations and subsequent homing behaviors, coupled with local residencies, indicate that the artificial reefs in the northern Gulf of Mexico may have significance extending well beyond the localized areas of reef deployment.

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Fine-scale movement and activity patterns of Caribbean reef sharks (Carcharhinus perezi) in the Bahamas

Cited by 23 publications

References 41 publications

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Skating on thin ice: Identifying the need for species‐specific data and defined migration ecology of Rajidae spp.

Migration and Residency of Sandbar, Atlantic Sharpnose, Bull, and Nurse Sharks in the Northern Gulf of Mexico

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