Examining movement patterns of yellowtail snapper, <i> Ocyurus chrysurus</i>, in the Dry Tortugas, Florida

Herbig, Jennifer; Keller, Jessica; Morley, Danielle; Walter, Kristen; Barbera, Paul; Acosta, Alejandro

doi:10.5343/bms.2018.0003

Cited by 9 publications

(20 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the ACOUSTIC TELEMETRY TO EVALUATE GROUPER MOVEMENTS high use of this area and previous experiences with equipment tampering and unsafe interactions between divers and boaters, it was decided to deploy the array in a rectangle around the feature of interest to avoid user conflicts and ensure longevity of equipment throughout the study. Receivers were housed in polyvinyl chloride cups mounted in concrete blocks as described by Herbig et al (2019). An additional 12 receivers that were part of an existing array located to the east of WDR and directly south of Key West were also utilized in the present study to determine whether there was connectivity from this location to WDR ( Figure 1A).…”

Section: Study Areamentioning

confidence: 99%

“…Distance was scaled to a mean of 0 and an SD of 1 to improve model fit, and the analysis was run in R (R Core Team 2018) by using the glmmTMB package (Brooks et al 2017). Model selection was based on the lowest value of Akaike's information criterion corrected for small sample size (AIC c ), which ranks models based on explained deviance and the number of parameters included in each model (Burnham et al 2011;Herbig et al 2019). A pseudo-R 2 value was calculated for the best approximating model (lowest AIC c value) by using the MuMIn package (Bartoń 2018).…”

Section: Range Testmentioning

confidence: 99%

See 1 more Smart Citation

Grouper Tales: Use of Acoustic Telemetry to Evaluate Grouper Movements at Western Dry Rocks in the Florida Keys

et al. 2020

Self Cite

View full text Add to dashboard Cite

The Western Dry Rocks (WDR) area off Key West, Florida, is an open fishing area that contains a multispecies fish spawning aggregation site, but grouper spawning there has yet to be confirmed. The movements of 18 adult and subadult grouper at WDR were tracked using acoustic telemetry to determine how this area is used by grouper species and whether it contains a grouper spawning aggregation site. Tagged fish consisted of 10 Black Grouper Mycteroperca bonaci, 5 Nassau Grouper Epinephelus striatus, 2 Gag M. microlepis, and 1 Yellowfin Grouper M. venenosa. Overall, tagged grouper were more likely to be present in the WDR array during winter spawning months, with species-specific seasonal differences. Our results indicated that grouper presence increased during spawning months, although some adults and subadults were present year-round. Grouper made more movements per day during nonspawning months compared to spawning months, although the north side of WDR was the most heavily used area, regardless of the time of year. Additionally, spatial graphs of grouper movement suggested that different grouper species utilized different areas of WDR. Increased presence of grouper during spawning months suggests that the WDR area may contain a grouper spawning aggregation site, which would mean that fish species aggregate to spawn at this location year-round. The success of the Florida Keys fisheries critically depends on the protection of multispecies spawning aggregations like that potentially contained at WDR.

show abstract

Section: Study Areamentioning

confidence: 99%

Section: Range Testmentioning

confidence: 99%

Grouper Tales: Use of Acoustic Telemetry to Evaluate Grouper Movements at Western Dry Rocks in the Florida Keys

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The decrease in survival probability of boat-tagged sh could be due to several factors. As described in Feeley et al (2018) and Herbig et al (2019), all sh tagged on the boat were returned to the sea oor via divers after they recovered from anesthesia to ensure a safe return to the reef. Nevertheless, the tagged sh may still have suffered from barotrauma, increased stress from being caught by hook and line, or long-lasting effects of anesthesia.…”

Section: Discussionmentioning

confidence: 99%

“…Data collected from acoustically tagged sh can be used to investigate a wide variety of biological and ecological questions. For example, acoustic telemetry data have provided answers to broad ecological questions, such as revealing previously unknown migration patterns for certain species (Feeley et al 2018, Pratt et al 2018 and have also be used to answer more localized questions, such as patterns of habitat use in a speci c location (Herbig et al 2019, Keller et al in press). Although acoustic telemetry studies have been rapidly increasing in number over the past 20 years (Crossin et al 2017), there are far fewer studies that examine the in uence of tagging methodology on acoustic telemetry results (Dance et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Under Pressure: Comparing Fish Survivorship Between in Situ and Boat Tagging Methods Using Internal Acoustic Tags

Keller

Morley

Herbig

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Background: With the increase in telemetry studies over the past decade, improving understanding of how different tagging methods influence fish survivorship is critical. By examining the effects of tagging methods, we can maximize the information gained from telemetry studies. Mortality resulting from internally tagging fish on a boat may be due to barotrauma injuries, increased stress from prolonged handling times, or predation after fish have been released back into the water. Conducting in situ internal acoustic tagging at depth of capture completely removes barotrauma stresses and simplifies the release method, which may improve fish survival. In this study, we used 8 years of acoustic tagging data to determine if the tagging method (in situ versus on the boat) influenced fish survivorship and evaluated the role of other tagging variables.Results: At 6 days after tagging, Kaplan–Meier survival curves revealed that the survival probability of fish tagged on the boat was 66% while survival probability of fish tagged in situ was 90%. Tagging method was the only variable to significantly affect survival probability based on Cox proportional hazards models, with fish tagged in situ ~75% less likely to have an “event” (mortality, tag loss, or emigration) compared to fish tagged on the boat at both 4 and 6 days after tagging. Examining tagging methods separately, handling time only marginally influenced survival probability of boat-tagged fish and no variables had a significant effect on survival of in situ tagged fish. Conclusions: In this study, tagging method was the only variable to significantly affect survival of internally tagged fish. Implanting internal acoustic tags in situ is not a practical method for every species and for every environment, but given the increased fish survivorship demonstrated here, we strongly suggest it be considered as the preferred tagging methodology where applicable.

show abstract

“…Data collected from acoustically tagged sh can be used to investigate a wide variety of biological and ecological questions. For example, acoustic telemetry data have provided answers to broad ecological questions, such as revealing previously unknown migration patterns for certain species (Feeley et al 2018, Pratt et al 2018 and have also been used to answer more localized questions, such as patterns of habitat use in a speci c location (Herbig et al 2019, Keller et al2020. Although acoustic telemetry studies have been rapidly increasing in number over the past 20 years (Crossin et al 2017), there are far fewer studies that examine the in uence of tagging methodology on acoustic telemetry results (Dance et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Under pressure: Comparing in situ and boat tagging methods using time-to-event analyses

Keller

Morley

Herbig

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Background With the increase in telemetry studies over the past decade, improving understanding of how different tagging methods influence fish survivorship is critical. By examining the effects of tagging methods, we can maximize the information gained from telemetry studies. Mortality resulting from internally tagging fish on a boat may be due to barotrauma injuries, increased stress from prolonged handling times, or predation after fish have been released back into the water. Conducting in situ internal acoustic tagging at depth of capture completely removes barotrauma stresses and simplifies the release method, which may improve fish survival. In this study, we used 8 years of acoustic tagging data to determine if the tagging method ( in situ versus on the boat) influenced fish survivorship and evaluated the role of other tagging variables. Results At 6 days after tagging, Kaplan–Meier survival curves revealed that the survival probability of fish tagged on the boat was 66% while survival probability of fish tagged in situ was 90%. Tagging method was the only variable to significantly affect survival probability based on Cox proportional hazards models, with fish tagged in situ ~75% less likely to have an “event” (mortality, tag loss, or emigration) compared to fish tagged on the boat at both 4 and 6 days after tagging. Examining tagging methods separately, handling time only marginally influenced survival probability of boat-tagged fish and no variables had a significant effect on survival of in situ tagged fish. Conclusions In this study, tagging method was the only variable to significantly affect survival of internally tagged fish. Implanting internal acoustic tags in situ is not a practical method for every species and for every environment, but given the increased fish survivorship demonstrated here, we strongly suggest it be considered as the preferred tagging methodology where applicable.

show abstract

Examining movement patterns of yellowtail snapper, Ocyurus chrysurus, in the Dry Tortugas, Florida

Cited by 9 publications

References 0 publications

Grouper Tales: Use of Acoustic Telemetry to Evaluate Grouper Movements at Western Dry Rocks in the Florida Keys

Grouper Tales: Use of Acoustic Telemetry to Evaluate Grouper Movements at Western Dry Rocks in the Florida Keys

Under Pressure: Comparing Fish Survivorship Between in Situ and Boat Tagging Methods Using Internal Acoustic Tags

Under pressure: Comparing in situ and boat tagging methods using time-to-event analyses

Contact Info

Product

Resources

About

Examining movement patterns of yellowtail snapper, Ocyurus chrysurus, in the Dry Tortugas, Florida

Cited by 9 publications

References 0 publications

Grouper Tales: Use of Acoustic Telemetry to Evaluate Grouper Movements at Western Dry Rocks in the Florida Keys

Grouper Tales: Use of Acoustic Telemetry to Evaluate Grouper Movements at Western Dry Rocks in the Florida Keys

Under Pressure: Comparing Fish Survivorship Between in Situ and Boat Tagging Methods Using Internal Acoustic Tags

Under pressure: Comparing in situ and boat tagging methods using&nbsp;time-to-event analyses

Contact Info

Product

Resources

About

Under pressure: Comparing in situ and boat tagging methods using time-to-event analyses