Satellite-tracking dataset of loggerhead sea turtles tracked from western Mediterranean

Abalo-Morla, Sara; Belda, Eduardo J.; Tòmàs, Jesús; Crespo-Picazo, José Luís; Marco, Adolfo; Revuelta, Ohiana

doi:10.1016/j.dib.2022.108432

Cited by 5 publications

(3 citation statements)

References 3 publications

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“… Note : This table provides the following: Argos ID number, name, CCL, CCW, date of deployment, deployment coordinates (latitude and longitude), date of the end of monitoring, attachment method (epoxy resin or silicone), tag brand (SIRTRACK, Desert Star or Wildlife Computers), type of tag (solar‐powered PPT, SPOT and FASTLOC GPS) and the institutions involved in satellite tagging and data acquisition (FO, UV, GVA, UPV, UVic, UB, CRAM, E and C). Satellite‐tracking data for turtles Ana, Maria, Mascletà 2016 and Yaiza are publicly accessible at the EMODnet repository (Abalo‐Morla, Belda, Tomás, et al, 2022). …”

Section: Methodsmentioning

confidence: 99%

“…Isotopic data are available in this manuscript (Table 2) and in the Supporting Information (Appendix S1). Satellite‐tracking data for turtles Ana, Maria, Mascletà 2016 and Yaiza are publicly available at the EMODnet repository (Abalo‐Morla, Belda, Tomás, et al, 2022). The satellite‐tracking data for the other turtles are available upon request to the authors.…”

Section: Data Availability Statementmentioning

confidence: 99%

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Identifying the foraging grounds of the new loggerhead turtle nesters in the western Mediterranean

Cardona,

Abalo‐Morla,

Cani

et al. 2024

Aquatic Conservation

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The western Mediterranean Sea has traditionally served as a primary foraging ground for juvenile loggerhead turtles from three distinct regional management units: the North‐western Atlantic, the Mediterranean and Cape Verde. Nesting activities were sporadic. Recently, nesting activity on the beaches of eastern Spain has increased, due to warmer sand and water temperatures during the summer months. The study has integrated stable isotope analysis of carbon (C), nitrogen (N) and sulphur (S) with satellite telemetry to identify the foraging grounds of these new colonizers nesting on Spanish beaches. Results indicate that the majority of these adult females forage oceanically in the Algerian Basin, with a few exhibiting distinct stable isotope signals, tentatively associated with foraging in shallow coastal areas in the central Mediterranean Sea. The dominance of oceanic foragers in this new population is noteworthy, given the Algerian Basin's oligotrophic nature. This contrasts with the prevalence of neritic foraging in adult females nesting in the central and eastern Mediterranean Sea. The use of the Algerian Basin as a foraging ground for adult loggerhead turtles exposes them to bycatch from drifting longlines. The authorities should refrain from increasing bluefin quotas imposed on longliners in the Algerian Basin unless the fishery avoids using squid as bait and agrees to deploy hooks deeper than 25 m to reduce loggerhead turtle bycatch.

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Section: Methodsmentioning

confidence: 99%

Section: Data Availability Statementmentioning

confidence: 99%

Identifying the foraging grounds of the new loggerhead turtle nesters in the western Mediterranean

Cardona,

Abalo‐Morla,

Cani

et al. 2024

Aquatic Conservation

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“…Dataset summary information is shown in Table 3.1. 4), ii) caught by-hand (n = 9) and iii) after nesting events (either successful or attempts) in the Mediterranean Spanish coast (n = 8). In these last cases, to avoid disturbance of the nesting behavior, tags were applied after nesting when turtles were heading back to sea (see Chapters 6 and 7).…”

Section: Satellite Tagging and Monitoringmentioning

confidence: 99%

Habitat use and distribution of the loggerhead sea turtle (Caretta caretta) in the Mediterranean Sea: Implications for marine planning strategies

Abalo Morla

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1.1 Background ______________________________________________________________________________________ 2 1.1.1 The relevance of the marine biodiversity conservation ____________________________________ 2 1.1.2 The loggerhead sea turtle in the Mediterranean Sea ______________________________________ 3 1.1.3 Marine turtle conservation in the Mediterranean Sea ______________________________________ 7 1.2 Research justification ____________________________________________________________________________ 9 1.3 Thesis outline __________________________________________________________________________________ 10 1.4 Scientific productions__________________________________________________________________________ 12 Chapter 2: Aim and objectives _______________________________________________________________________ 17 Aim ________________________________________________________________________________________________ 18 Objectives _________________________________________________________________________________________ 18 Chapter 3: General materials and methods __________________________________________________________ 20 3.1 Study area _____________________________________________________________________________________ 21 3.2 Data collection _________________________________________________________________________________ 23 3.2.1 Satellite tagging and monitoring _________________________________________________________ 23 3.2.2 Environmental data _______________________________________________________________________ 26 3.3 Data analysis ___________________________________________________________________________________ 27 3.3.1 Survival ___________________________________________________________________________________ 27 3.3.2 Analysis of trajectories ___________________________________________________________________ 28 3.3.3 Habitat use analyses ______________________________________________________________________ 29 iv Chapter 4: Survival and dispersal strategies of loggerhead post-hatchlings in the Mediterranean Sea _____________________________________________________________________________________________________ 4.1 Introduction ___________________________________________________________________________________ 4.2 Methods _______________________________________________________________________________________ 4.2.1 Turtle data and satellite tagging _________________________________________________________ 4.2.2 Data acquisition __________________________________________________________________________ 4.2.3 Dispersion analyses ______________________________________________________________________ 4.2.4 Survival analyses _________________________________________________________________________ 4.3 Results _________________________________________________________________________________________ 4.3.1 Turtle movements ________________________________________________________________________ 4.3.2 Survival analyses _________________________________________________________________________ 4.4 Discussion __________...

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Factors driving dispersal and habitat use of loggerhead sea turtle post-hatchlings and its conservational implications

Abalo-Morla,

Muñoz-Mas,

Tomás

et al. 2023

Mar Biol

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Nesting events of loggerhead sea turtles (Caretta caretta) are on the rise in the Western Mediterranean Sea, far from their usual nesting areas in the Mediterranean and Atlantic basins. The study of dispersal behavior toward potential developmental areas of loggerhead post-hatchlings from this new nesting area is crucial to comprehend this colonization process and determining grounded conservation strategies. To fill this gap, we investigated, for the first time in the Mediterranean Sea, the dispersal strategies and habitat use based on data from 19 head-started loggerhead post-hatchlings released from the Spanish Mediterranean coast and satellite-tracked between 2016 and 2018. Turtles dispersed over large areas and showed active swimming phases, as they frequently dispersed against sea currents. Dispersal routes varied for each individual, although they consistently dispersed south-eastwards, especially during the coldest periods. Several post-hatchlings traveled through the Sicilian Channel to reach deep and warmer areas in the eastern Mediterranean basin. The most year-round suitable areas corresponded to the Ionian and Levantine Seas, which correspond with those found in their traditional nesting areas. Therefore, conservation measures focused on this stage should be taken in the path toward and these developmental areas.

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Satellite-tracking dataset of loggerhead sea turtles tracked from western Mediterranean

Cited by 5 publications

References 3 publications

Identifying the foraging grounds of the new loggerhead turtle nesters in the western Mediterranean

Identifying the foraging grounds of the new loggerhead turtle nesters in the western Mediterranean

Habitat use and distribution of the loggerhead sea turtle (Caretta caretta) in the Mediterranean Sea: Implications for marine planning strategies

Factors driving dispersal and habitat use of loggerhead sea turtle post-hatchlings and its conservational implications

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