scholarly journals A groundwater-fed coastal inlet as habitat for the Caribbean queen conch Lobatus gigas—an acoustic telemetry and space use analysis

2017 ◽  
Vol 571 ◽  
pp. 139-152 ◽  
Author(s):  
TC Stieglitz ◽  
AM Dujon
Keyword(s):  
Acoustic Telemetry ◽  
Space Use ◽  
Queen Conch ◽  
Coastal Inlet ◽  
The Caribbean

scholarly journals Population Structure, Larval Dispersal, and Gene Flow in the Queen Conch,Strombus gigas, of the Caribbean

1989 ◽  
Vol 177 (3) ◽  
pp. 356-362 ◽  
Author(s):  
JEFFRY B. MITTON ◽  
CARL J. BERG ◽  
KATHERINE S. ORR
Keyword(s):  
Population Structure ◽  
Gene Flow ◽  
Larval Dispersal ◽  
Strombus Gigas ◽  
Queen Conch ◽  
The Caribbean

Testing an autonomous acoustic telemetry positioning system for fine-scale space use in marine animals

2013 ◽  
Vol 448 ◽  
pp. 46-56 ◽  
Author(s):  
Zy Biesinger ◽  
Benjamin M. Bolker ◽  
Douglas Marcinek ◽  
Thomas M. Grothues ◽  
Joseph A. Dobarro ◽  
...  
Keyword(s):  
Acoustic Telemetry ◽  
Space Use ◽  
Scale Space ◽  
Positioning System ◽  
Fine Scale ◽  
Marine Animals

Applying EBM to Queen Conch Fisheries in the Caribbean

2012 ◽  
pp. 177-186
Author(s):  
Appeldoorn R.S. ◽  
E. Castro Gonzalez ◽  
R. Glazer ◽  
M. Prada
Keyword(s):  
Queen Conch ◽  
The Caribbean

Environmental drivers of diving behavior and space-use of juvenile endangered Caribbean hawksbill sea turtles identified using acoustic telemetry

2020 ◽  
Vol 652 ◽  
pp. 157-171
Author(s):  
JK Matley ◽  
J Jossart ◽  
L Johansen ◽  
PD Jobsis
Keyword(s):  
Water Temperature ◽  
Acoustic Telemetry ◽  
Habitat Type ◽  
Size Variation ◽  
Space Use ◽  
Sea Turtle ◽  
Extreme Weather Events ◽  
Environmental Drivers ◽  
Diving Behavior ◽  
Climate Trends

Space-use by aquatic ectotherms is closely linked to environmental factors such as temperature due to thermal-mediated metabolism and energy requirements. These factors are important, as they may alter an animal’s exposure to food/predators, hinder physiological function, increase competitive interactions, or even prompt population or biodiversity loss. Using general linear mixed-effects models, we investigated the influence of medium-term (months-years) environmental (diel period, water temperature, season, wind speed, air pressure, habitat type) and biological (turtle size) variation on space-use metrics for the Critically Endangered hawksbill sea turtle Eretmochelys imbricata, including dive duration, activity space, and rate of movement. We tracked 17 resident juveniles between August 2015 and May 2018 with a compact acoustic telemetry array (35-41 receivers in ~1 km2) in Brewers Bay, US Virgin Islands. Diel differences in space-use were significant and highlighted periods of relative inactivity (e.g. resting) during the night and activity (e.g. foraging) during the day. Water temperature was also an important covariate influencing behavior leading to shorter dive durations and higher rates of movement in warmer temperatures. High contribution of random effects (individual and year) to model variation was also apparent, suggesting that juvenile hawksbills can operate outside the relatively narrow environmental range experienced within the study area. Nevertheless, ongoing climate trends (e.g. warmer temperatures and more extreme weather events) pose a significant concern for hawksbill populations, as juveniles spend their developmental period in shallow nearshore areas where environmental impacts will likely be greatest.

scholarly journals Acoustic telemetry and network analysis reveal the space use of multiple reef predators and enhance marine protected area design

2016 ◽  
Vol 283 (1834) ◽  
pp. 20160717 ◽  
Author(s):  
James S. E. Lea ◽  
Nicolas E. Humphries ◽  
Rainer G. von Brandis ◽  
Christopher R. Clarke ◽  
David W. Sims
Keyword(s):  
Network Analysis ◽  
Acoustic Telemetry ◽  
Marine Protected Area ◽  
High Tide ◽  
Space Use ◽  
Scale Space ◽  
Turtle Species ◽  
Movement Data ◽  
Species Specific

Marine protected areas (MPAs) are commonly employed to protect ecosystems from threats like overfishing. Ideally, MPA design should incorporate movement data from multiple target species to ensure sufficient habitat is protected. We used long-term acoustic telemetry and network analysis to determine the fine-scale space use of five shark and one turtle species at a remote atoll in the Seychelles, Indian Ocean, and evaluate the efficacy of a proposed MPA. Results revealed strong, species-specific habitat use in both sharks and turtles, with corresponding variation in MPA use. Defining the MPA's boundary from the edge of the reef flat at low tide instead of the beach at high tide (the current best in Seychelles) significantly increased the MPA's coverage of predator movements by an average of 34%. Informed by these results, the larger MPA was adopted by the Seychelles government, demonstrating how telemetry data can improve shark spatial conservation by affecting policy directly.

Measuring niche overlap between co-occurring Plectropomus spp. using acoustic telemetry and stable isotopes

2017 ◽  
Vol 68 (8) ◽  
pp. 1468 ◽  
Author(s):  
J. K. Matley ◽  
M. R. Heupel ◽  
A. T. Fisk ◽  
C. A. Simpfendorfer ◽  
A. J. Tobin
Keyword(s):  
Stable Isotopes ◽  
Acoustic Telemetry ◽  
Space Use ◽  
Niche Overlap ◽  
Dietary Overlap ◽  
Use Patterns ◽  
New Information ◽  
Inshore Reef ◽  
Species Specific ◽  
Δ15n And Δ13c

Investigating niche overlap in exploited fish species can reveal behavioural information necessary to improve conservation and fisheries management at a species level. The present study examined spatial and dietary overlap between two co-occurring reef fish, namely Plectropomus leopardus and P. maculatus, at an inshore reef in the Great Barrier Reef Marine Park using acoustic telemetry and stable isotopes. Movements of tagged fish within an acoustic array of 19 receivers deployed along a narrow reef portion of Orpheus Island were monitored for up to 3 years. Although space use was similar between species, spatial overlap was rare and P. maculatus (n=30) was consistently deeper than P. leopardus (n=32). Dietary overlap between species was high based on overlapping δ15N and δ13C isotopic niches in muscle tissue (n=20). The complementary stable isotope and acoustic telemetry data revealed these species had similar isotopic niches but distinct space use patterns, which may be a product of competition for resources. These findings show species-specific behaviours within a genus commonly managed or reported as a single entity, and provide new information on partitioning of resources by Plectropomus spp. in inshore reef environments.

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