Monitoring the behavior of freely moving lobsters with accelerometers

Jury, Steven H.; Langley, Thomas G.; Gutzler, Benjamin C.; Goldstein, Jason S.; Watson, Winsor H.

doi:10.5343/bms.2017.1117

Cited by 15 publications

(15 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, a long‐term captive study on horseshoe crabs using accelerometers determined that the threshold for movement in relation to root mean square (RMS) acceleration was >0.1 m/s 2 (Watson, Johnson, Whitworth, & Chabot, ). Similarly, calibration of video of American lobsters obtained in the laboratory with RMS acceleration allowed conversion of RMS to the distance travelled per unit of time and was also able to identify different intensities of movements such as burst events (Jury, Langley, Gutzler, Goldstein, & Watson, ).…”

Section: Introductionmentioning

confidence: 99%

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Kadar

Ladds

Mourier

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Kadar

Ladds

Mourier

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Prior to deployment in the eld, the logger designs were tested in the laboratory at the University of New These laboratory tests also allowed us to verify that a Movement Index (MI), similar to that used by the accelerometer transmitters used by Jury et al (2018), was a reliable indicator of activity. The MI was calculated by differentiating each of the three acceleration axes via the Savitzy-Golay method, and combining these values using the following equation:…”

Section: Laboratory Testingmentioning

confidence: 99%

Measurements of American lobster heart rate and movements in the wild using a low-cost open source datalogger

Gutzler

Watson

2022

Mar Biol

View full text Add to dashboard Cite

To better understand the behavior of the American lobster (Homarus americanus) in the wild, we developed the C-HAT (Crustacean Heart and Activity Tracker): a datalogger capable of continuously recording the triaxial acceleration, compass heading, and heart rate of lobsters that are freely moving in their natural habitat. C-HATs and acoustic transmitters were a xed to six lobsters that were released within an acoustic positioning array off the coast of New Hampshire (USA) and recaptured by divers after 15-47 hours at large. Lobster heart rates tended to be ~60 beats per minute (bpm) at rest, but increased to ~80 bpm during periods of activity. The presence of brief cardiac startle responses during the beginning of some periods of activity suggested that at least a third of their movement bouts occurred in response to external stimuli, such as interactions with other species. The combination of acoustic positioning data and datalogging allowed us to determine if various indices of acceleration could be used to estimate distance traveled. We found a signi cant correlation between a Movement Index (MI), based on differentiation of the three axes of acceleration, and the distance lobsters traveled in 10 min based on telemetry data. This enabled us to use the MI in concert with compass headings to reconstruct lobster movement paths via dead reckoning. This study demonstrates the potential for low-cost, open-source, dataloggers to provide detailed information on the daily behavior and physiology of marine invertebrates in the wild.

show abstract

“…Accelerometers are very effective in monitoring the activity rhythm of crustaceans, and are currently one of the main application areas of acceleration sensors. The collected accelerometer outputs can be converted into distances moved per unit time and scholars can estimate the distance moved by shrimp in a period of time according to this method to an extent that is statistically significant, that is, p < 0.005 [ 125 , 128 ]. However, the correlation between the movement and accelerometer is uncertain.…”

Section: Electrosensorsmentioning

confidence: 99%

“…Jury et al obtained the value of r 2 between the video activity and accelerometer activity of 0.898. The activity was defined as forward, backward, or sideways locomotion (>2 cm) for each lobster [ 128 ]. Goldstein et al obtained the value of r 2 between the video distance and acceleration of 0.53 and 0.63 [ 125 ].…”

Section: Electrosensorsmentioning

confidence: 99%

Automatic Monitoring of Relevant Behaviors for Crustacean Production in Aquaculture: A Review

Liu

Song

et al. 2021

Animals

View full text Add to dashboard Cite

Crustacean farming is a fast-growing sector and has contributed to improving incomes. Many studies have focused on how to improve crustacean production. Information about crustacean behavior is important in this respect. Manual methods of detecting crustacean behavior are usually infectible, time-consuming, and imprecise. Therefore, automatic growth situation monitoring according to changes in behavior has gained more attention, including acoustic technology, machine vision, and sensors. This article reviews the development of these automatic behavior monitoring methods over the past three decades and summarizes their domains of application, as well as their advantages and disadvantages. Furthermore, the challenges of individual sensitivity and aquaculture environment for future research on the behavior of crustaceans are also highlighted. Studies show that feeding behavior, movement rhythms, and reproduction behavior are the three most important behaviors of crustaceans, and the applications of information technology such as advanced machine vision technology have great significance to accelerate the development of new means and techniques for more effective automatic monitoring. However, the accuracy and intelligence still need to be improved to meet intensive aquaculture requirements. Our purpose is to provide researchers and practitioners with a better understanding of the state of the art of automatic monitoring of crustacean behaviors, pursuant of supporting the implementation of smart crustacean farming applications.

show abstract

Monitoring the behavior of freely moving lobsters with accelerometers

Cited by 15 publications

References 42 publications

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Acoustic accelerometry reveals diel activity patterns in premigratory Port Jackson sharks

Measurements of American lobster heart rate and movements in the wild using a low-cost open source datalogger

Automatic Monitoring of Relevant Behaviors for Crustacean Production in Aquaculture: A Review

Contact Info

Product

Resources

About