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Esposito E, Pace A, Affuso A, Oliviero M, Iaccarino D, Paduano G, Maffucci F, Fusco G, De Carlo E, Hochscheid S, Di Nocera F. Antibiotic Resistance of Bacteria Isolated from Clinical Samples and Organs of Rescued Loggerhead Sea Turtles ( Caretta caretta) in Southern Italy. Animals (Basel) 2024; 14:2103. [PMID: 39061565 PMCID: PMC11273476 DOI: 10.3390/ani14142103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/13/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Antimicrobial resistance affects all environments, endangering the health of numerous species, including wildlife. Increasing anthropic pressure promotes the acquisition and dissemination of antibiotic resistance by wild animals. Sea turtles, being particularly exposed, are considered sentinels and carriers of potential zoonotic pathogens and resistant strains. Therefore, this study examined the antibiotic resistance profiles of bacteria isolated from loggerhead sea turtles hospitalised in a rescue centre of Southern Italy over a 9-year period. Resistance to ceftazidime, doxycycline, enrofloxacin, flumequine, gentamicin, oxytetracycline and sulfamethoxazole-trimethoprim was evaluated for 138 strains isolated from the clinical samples or organs of 60 animals. Gram-negative families were the most isolated: Vibrionaceae were predominant, followed by Shewanellaceae, Pseudomonadaceae, Enterobacteriaceae and Morganellaceae. These last three families exhibited the highest proportion of resistance and multidrug-resistant strains. Among the three Gram-positive families isolated, Enterococcaceae were the most represented and resistant. The opportunistic behaviour of all the isolated species is particularly concerning for diseased sea turtles, especially considering their resistance to commonly utilised antibiotics. Actually, the multiple antibiotic resistance was higher when the sea turtles were previously treated. Taken together, these findings highlight the need to improve antimicrobial stewardship and monitor antibiotic resistance in wildlife, to preserve the health of endangered species, along with public and environmental health.
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Affiliation(s)
- Emanuele Esposito
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Antonino Pace
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Andrea Affuso
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Maria Oliviero
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Doriana Iaccarino
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Gianluigi Paduano
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Fulvio Maffucci
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Esterina De Carlo
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Sandra Hochscheid
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Fabio Di Nocera
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
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Luna-Ortiz A, Marín-Capuz G, Abella E, Crespo-Picazo JL, Escribano F, Félix G, Giralt S, Tomás J, Pegueroles C, Pascual M, Carreras C. New colonisers drive the increase of the emerging loggerhead turtle nesting in Western Mediterranean. Sci Rep 2024; 14:1506. [PMID: 38233518 PMCID: PMC10794258 DOI: 10.1038/s41598-024-51664-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/06/2024] [Indexed: 01/19/2024] Open
Abstract
The loggerhead sea turtle (Caretta caretta) is sensitive to climate change and is responding by colonising the Western Mediterranean. To understand the rapid nesting increase in recent years in Spain, we sampled 45 hatchlings from 8 nests between 2016 and 2019. We sequenced a mtDNA D-loop region, genotyped 2291 SNPs using 2bRAD and collected data on clutch size, hatching success, and incubation duration. We confirmed that the colonisation has a Mediterranean and Atlantic mixed origin and we detected that these nests were laid by different females, except for two nests within the same season. Our results suggest that the recent increase in nesting is due to an increase in the number of colonising individuals rather than females born in the same area returning to breed. We hypothesize that this increase in the number of colonisers results from successful conservation efforts, feminisation of the populations of origin and earlier sexual maturation. However, the percentage of offspring females produced in Spain suggests that future returning individuals will aid to the settlement of the new population. These results allow defining the current status of this colonisation although future efforts are needed to detect remigrants to confirm the establishment of a resident population.
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Affiliation(s)
- Astrid Luna-Ortiz
- Department of Genetics, Microbiology and Statistics and IrBio, University of Barcelona, Avinguda Diagonal 643, 08028, Barcelona, Spain
| | - Gisela Marín-Capuz
- Department of Genetics, Microbiology and Statistics and IrBio, University of Barcelona, Avinguda Diagonal 643, 08028, Barcelona, Spain
| | - Elena Abella
- BETA Technological Center, University of Vic - Central University of Catalonia, Carretera Roda 70, 08500, Vic, Spain
| | - José Luis Crespo-Picazo
- Fundació Oceanogràfic de la Comunitat Valenciana, Ciutat de les Arts i les Ciències, 46013, Valencia, Spain
| | - Fernando Escribano
- Centro de Recuperación de Fauna Silvestre "El Valle", Ctra. Subida a El Valle, 62, 30150, La Alberca de las Torres, Murcia, Spain
| | - Guillem Félix
- Consorci per a la Recuperació de la Fauna de les Illes Balears (COFIB), Servei de Protecció d'Espècies. Conselleria Agricultura, Pesca i Medi Natural. Govern de les Illes Balears, Carretera Palma- Sineu, Km 15,400, 07142, Santa Eugènia, Balearic Islands, Spain
| | - Silvia Giralt
- Fundación para la Conservación y la Recuperación de Animales Marinos (CRAM), 08820, El Prat de Llobregat, Barcelona, Spain
| | - Jesús Tomás
- Instituto Cavanilles de Biodiversidad y Biología Evolutiva, University of Valencia, Apdo, 22085, 46071, Valencia, Spain
| | - Cinta Pegueroles
- Department of Genetics, Microbiology and Statistics and IrBio, University of Barcelona, Avinguda Diagonal 643, 08028, Barcelona, Spain
| | - Marta Pascual
- Department of Genetics, Microbiology and Statistics and IrBio, University of Barcelona, Avinguda Diagonal 643, 08028, Barcelona, Spain
| | - Carlos Carreras
- Department of Genetics, Microbiology and Statistics and IrBio, University of Barcelona, Avinguda Diagonal 643, 08028, Barcelona, Spain.
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Mazaris AD, Dimitriadis C, Papazekou M, Schofield G, Doxa A, Chatzimentor A, Turkozan O, Katsanevakis S, Lioliou A, Abalo-Morla S, Aksissou M, Arcangeli A, Attard V, El Hili HA, Atzori F, Belda EJ, Ben Nakhla L, Berbash AA, Bjorndal KA, Broderick AC, Camiñas JA, Candan O, Cardona L, Cetkovic I, Dakik N, de Lucia GA, Dimitrakopoulos PG, Diryaq S, Favilli C, Fortuna CM, Fuller WJ, Gallon S, Hamza A, Jribi I, Ben Ismail M, Kamarianakis Y, Kaska Y, Korro K, Koutsoubas D, Lauriano G, Lazar B, March D, Marco A, Minotou C, Monsinjon JR, Naguib NM, Palialexis A, Piroli V, Sami K, Sönmez B, Sourbès L, Sözbilen D, Vandeperre F, Vignes P, Xanthakis M, Köpsel V, Peck MA. Priorities for Mediterranean marine turtle conservation and management in the face of climate change. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 339:117805. [PMID: 37043912 DOI: 10.1016/j.jenvman.2023.117805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/02/2023] [Accepted: 03/23/2023] [Indexed: 05/03/2023]
Abstract
As climate-related impacts threaten marine biodiversity globally, it is important to adjust conservation efforts to mitigate the effects of climate change. Translating scientific knowledge into practical management, however, is often complicated due to resource, economic and policy constraints, generating a knowledge-action gap. To develop potential solutions for marine turtle conservation, we explored the perceptions of key actors across 18 countries in the Mediterranean. These actors evaluated their perceived relative importance of 19 adaptation and mitigation measures that could safeguard marine turtles from climate change. Of importance, despite differences in expertise, experience and focal country, the perceptions of researchers and management practitioners largely converged with respect to prioritizing adaptation and mitigation measures. Climate change was considered to have the greatest impacts on offspring sex ratios and suitable nesting sites. The most viable adaptation/mitigation measures were considered to be reducing other pressures that act in parallel to climate change. Ecological effectiveness represented a key determinant for implementing proposed measures, followed by practical applicability, financial cost, and societal cost. This convergence in opinions across actors likely reflects long-standing initiatives in the Mediterranean region towards supporting knowledge exchange in marine turtle conservation. Our results provide important guidance on how to prioritize measures that incorporate climate change in decision-making processes related to the current and future management and protection of marine turtles at the ocean-basin scale, and could be used to guide decisions in other regions globally. Importantly, this study demonstrates a successful example of how interactive processes can be used to fill the knowledge-action gap between research and management.
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Affiliation(s)
- Antonios D Mazaris
- Department of Ecology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Charalampos Dimitriadis
- Management Unit of Zakynthos and Ainos National Parks and Protected Areas of the Ionian Islands, Zakynthos, Greece
| | - Maria Papazekou
- Department of Ecology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Gail Schofield
- School of Biological and Behavioural Sciences, Queen Mary University of London, London, UK
| | - Aggeliki Doxa
- Department of Ecology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece; Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas (FORTH), Heraklion, Crete, Greece
| | - Anastasia Chatzimentor
- Department of Ecology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Oguz Turkozan
- Aydın Adnan Menderes University, Faculty of Science, Department of Biology, Aydın, Turkiye
| | | | - Aphrodite Lioliou
- Managing Authority of European Territorial Cooperation Programmes (INTERREG), Thessaloniki, Greece
| | - Sara Abalo-Morla
- Institut d' Investigació per a La Gestió de Zones Costaneres (IGIC), Universitat Politècnica de València, València, Spain; Instituto Español de Oceanografía, Centro Oceanográfico de Vigo (COV-IEO), CSIC, Vigo, Spain
| | - Mustapha Aksissou
- Laboratoire Ecologie, Systématique, Conservation de La Biodiversité (LESCB), Faculté des Sciences de Tétouan, Université Abdelmalek Essaâdi, Tetouan, Morocco
| | - Antonella Arcangeli
- Italian Institute for Environmental Protection and Research - ISPRA, Rome, Italy
| | | | | | - Fabrizio Atzori
- Marine Protected Area Capo Carbonara, Villasimius, Sardinia, Italy
| | - Eduardo J Belda
- Institut d' Investigació per a La Gestió de Zones Costaneres (IGIC), Universitat Politècnica de València, València, Spain
| | - Lobna Ben Nakhla
- Specially Protected Areas Regional Activity Centre (UNEP/MAP-SPA/RAC), Tunisia
| | - Ali A Berbash
- Protected Area and Biodiversity Section, Nature Conservation Department, Ministry of Environment, Libya
| | - Karen A Bjorndal
- Archie Carr Center for Sea Turtle Research, University of Florida, Gainesville, FL, USA; Department of Biology, University of Florida, Gainesville, FL, USA
| | | | - Juan A Camiñas
- Asociación Herpetológica Española (AHE), Museo Nacional de Ciencias Naturales, Madrid, Spain
| | - Onur Candan
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Ordu University, Ordu, Turkiye
| | - Luis Cardona
- Department of Evolutionary Biology, Ecology and Environmental Science, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Ilija Cetkovic
- University of Montenegro - Institute of Marine Biology, Kotor, Montenegro
| | - Nabigha Dakik
- Management Unit of Tyre Coast Nature Reserve, Tyre, Lebanon
| | - Giuseppe Andrea de Lucia
- IAS-CNR, Institute of Anthropic Impact and Sustainability in Marine Environment, National Research Council Oristano Section, Torregrande, Italy
| | | | - Salih Diryaq
- Ministry of Environment - Sirte Branch, Sirte, Libya
| | | | | | - Wayne J Fuller
- Faculty of Veterinary Medicine, Near East University, Nicosia, Cyprus
| | | | | | - Imed Jribi
- Faculté des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
| | - Manel Ben Ismail
- Iberostar Group - Sustainability Department - Wave of Change, Hammamet, Tunisia; Notre Grand Bleu Association, Monastir, Tunisia
| | - Yiannis Kamarianakis
- Institute of Applied and Computational Mathematics, Foundation for Research and Technology-Hellas (FORTH), Heraklion, Crete, Greece
| | - Yakup Kaska
- Pamukkale University, Faculty of Science, Department of Biology, Denizli, Turkiye; Sea Turtle Research, Rescue and Rehabilitation Center (DEKAMER), Muğla, Turkiye
| | - Kastriot Korro
- Wildlife and Health Research Center, Agricultural University of Tirana, Tirana, Albania
| | - Drosos Koutsoubas
- Department of Marine Sciences, University of the Aegean, Mytilene, Greece
| | - Giancarlo Lauriano
- Italian Institute for Environmental Protection and Research - ISPRA, Rome, Italy
| | - Bojan Lazar
- Department of Biodiversity, Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Koper, Slovenia; Marine Science Program, Faculty of Natural Sciences, Juraj Dobrila University of Pula, Pula, Croatia
| | - David March
- Centre for Ecology and Conservation, University of Exeter, UK; Cavanilles Institute of Biodiversity and Evolutionary Biology, Universitat de València, Valencia, Spain
| | - Adolfo Marco
- Estación Biológica de Doñana, CSIC, C/Américo Vespucio, S/n, Sevilla, Spain
| | | | | | - Nahla M Naguib
- Biodiversity Department, Nature Conservation Sector, Egyptian Environmental Affairs Agency (EEAA), Egypt
| | | | - Vilma Piroli
- University of Shkodra "Luigj Gurakuqi", Shkoder, Albania
| | - Karaa Sami
- Institut National des Sciences et Technologies de La Mer Tunisie, Tunisia
| | - Bektaş Sönmez
- Sivas Cumhuriyet University, Suşehri Timur Karabal Vocational School, Suşehri, Sivas, Turkiye
| | - Laurent Sourbès
- Management Unit of Zakynthos and Ainos National Parks and Protected Areas of the Ionian Islands, Zakynthos, Greece
| | - Doğan Sözbilen
- Pamukkale University, Acipayam Vocational School, Veterinary Department, Denizli, Turkiye
| | - Frederic Vandeperre
- Institute of Marine Sciences - Okeanos, University of the Azores, Horta, Portugal
| | - Pierre Vignes
- Faculty of Education, University of Tripoli, Tripoli, Libya
| | - Michail Xanthakis
- Management Unit of Zakynthos and Ainos National Parks and Protected Areas of the Ionian Islands, Zakynthos, Greece
| | - Vera Köpsel
- Institut für Marine Ökosystem- und Fischereiwissenschaften (IMF), Universität Hamburg, Hamburg, Germany
| | - Myron A Peck
- Department of Coastal Systems, Royal Netherlands Institute for Sea Research, Den Burg, (Texel), Netherlands
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Trace Elements and Persistent Organic Pollutants in Unhatched Loggerhead Turtle Eggs from an Emerging Nesting Site along the Southwestern Coasts of Italy, Western Mediterranean Sea. Animals (Basel) 2023; 13:ani13061075. [PMID: 36978615 PMCID: PMC10044507 DOI: 10.3390/ani13061075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Marine pollution is one of the major threats affecting loggerhead turtles, which due to their long life span, highly migratory behavior, and carnivorous diet, may be exposed to elevated levels of toxic elements throughout their life. The transfer of chemicals from mothers to their offspring is of particular conservation concern because it may affect embryonic development and hatching success. In this study, the concentrations of 16 toxic and potentially toxic trace elements, 6 indicator polychlorinated biphenyls (PCBs), and organochlorine pesticide residues (OCPs) were determined in 138 eggs from 46 loggerhead turtle nests laid during the 2021 nesting season in Campania, Italy, western Mediterranean Sea. The possible impact of pollutant levels on hatching success and early embryonic death was also investigated. Trace element analysis was performed using an ICP-MS, except for mercury, which was determined using a Direct Mercury Analyzer® (DMA). PCBs and OCPs were analyzed with high-resolution gas chromatography coupled with high-resolution mass spectrometry (HRGC-HRMS) and gas chromatography tandem quadrupole mass spectrometry GC-MS /MS, respectively. The concentrations of essential elements in the eggs were higher than those of non-essential elements. In addition, the highly chlorinated PCBs (153, 138, and 180) contributed the most to the total PCBs, while OCPs were not detected. No correlations were found between contaminant concentrations and reproductive parameters (hatching success and no obvious embryos). The results obtained suggest that the levels of contaminants found in the eggs do not affect the reproductive success of the species in the study area.
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Margaritoulis D, Lourenço G, Riggall TE, Rees AF. Thirty-Eight Years of Loggerhead Turtle Nesting in Laganas Bay, Zakynthos, Greece: A Review. CHELONIAN CONSERVATION AND BIOLOGY 2022. [DOI: 10.2744/ccb-1531.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dimitris Margaritoulis
- ARCHELON, the Sea Turtle Protection Society of Greece, Solomou 57, GR-10432 Athens, Greece [; ; ; ]
| | - Gonçalo Lourenço
- ARCHELON, the Sea Turtle Protection Society of Greece, Solomou 57, GR-10432 Athens, Greece [; ; ; ]
| | - Thomas E. Riggall
- ARCHELON, the Sea Turtle Protection Society of Greece, Solomou 57, GR-10432 Athens, Greece [; ; ; ]
| | - Alan F. Rees
- ARCHELON, the Sea Turtle Protection Society of Greece, Solomou 57, GR-10432 Athens, Greece [; ; ; ]
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Hochscheid S, Maffucci F, Abella E, Bradai MN, Camedda A, Carreras C, Claro F, de Lucia GA, Jribi I, Mancusi C, Marco A, Marrone N, Papetti L, Revuelta O, Urso S, Tomás J. Nesting range expansion of loggerhead turtles in the Mediterranean: Phenology, spatial distribution, and conservation implications. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Assessing the use of marine protected areas by loggerhead sea turtles (Caretta caretta) tracked from the western Mediterranean. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Minor Sea Turtle Nesting Areas May Remain Unnoticed without Specific Monitoring: The Case of the Largest Mediterranean Island (Sicily, Italy). Animals (Basel) 2022; 12:ani12091221. [PMID: 35565647 PMCID: PMC9101241 DOI: 10.3390/ani12091221] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Before protecting sea turtles’ nesting sites from coastal development, these sites must be identified and evaluated. This is particularly difficult with minor nesting sites distributed over large areas. We report on the case of Sicily, the largest Mediterranean island with 464 km of sandy shores, where sea turtle nesting activity was basically unknown until recent years when specific projects focused on this topic. This may be the case for many other areas. A total of 323 nests have been reported in the 1944–2021 period (mostly in the last decade). However, the real number of nests occurring annually is still unknown and more research and monitoring is needed. In sea turtles, sex is determined by the incubation temperature, with high temperatures producing more females, and with global warming the scarcity of males may become a problem. Nests in Sicily seem to produce more males and therefore this area may be important for the species’ conservation in the future. Abstract Identifying coastal tracts suitable for sea turtle reproduction is crucial for sea turtle conservation in a context of fast coastal development and climate change. In contrast to nesting aggregations, diffuse nesting is elusive and assessing nesting levels is challenging. A total of 323 nesting events by the loggerhead sea turtle Caretta caretta have been reported in Sicily, the largest Mediterranean island, in the 1944–2021 period, mostly in the last decade. Specific monitoring efforts are the most likely explanation for such an increase and shows that sea turtle nesting may be underestimated or completely ignored in many areas with scattered nesting. The real nesting level along the 464 km sandy shores of Sicily is still unknown and more research is needed. The observed incubation period was relatively long (57 d) suggesting that a majority of males are produced in Sicily, in contrast to the typical female-biased sex ratio of sea turtles. In a context of climate warming producing sex ratios more skewed towards females, the potential of Sicily as a male-producing area should be further investigated. Other reproductive parameters are provided, such as clutch size and hatching and emergence success. A negative effect of relocation on the latter two was observed.
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Forgia GL, Cavaliere D, Espa S, Falcini F, Lacorata G. Numerical and experimental analysis of Lagrangian dispersion in two-dimensional chaotic flows. Sci Rep 2022; 12:7461. [PMID: 35523853 PMCID: PMC9076860 DOI: 10.1038/s41598-022-11350-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/11/2022] [Indexed: 11/24/2022] Open
Abstract
We present a review and a new assessment of the Lagrangian dispersion properties of a 2D model of chaotic advection and diffusion in a regular lattice of non stationary kinematic eddies. This model represents an ideal case for which it is possible to analyze the same system from three different perspectives: theory, modelling and experiments. At this regard, we examine absolute and relative Lagrangian dispersion for a kinematic flow, a hydrodynamic model (Delft3D), and a laboratory experiment, in terms of established dynamical system techniques, such as the measure of (Lagrangian) finite-scale Lyapunov exponents (FSLE). The new main results concern: (i) an experimental verification of the scale-dependent dispersion properties of the chaotic advection and diffusion model here considered; (ii) a qualitative and quantitative assessment of the hydro-dynamical Lagrangian simulations. The latter, even though obtained for an idealized open flow configuration, contributes to the overall validation of the computational features of the Delft3D model.
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Affiliation(s)
| | - Davide Cavaliere
- CNR, Institute of Marine Sciences, Via Fosso del Cavaliere 100, 00133, Rome, Italy
| | - Stefania Espa
- DICEA, University of Rome 'La Sapienza', Via Eudossiana 18, 00184, Rome, Italy
| | - Federico Falcini
- CNR, Institute of Marine Sciences, Via Fosso del Cavaliere 100, 00133, Rome, Italy
| | - Guglielmo Lacorata
- CNR, Institute of Marine Sciences, Via Fosso del Cavaliere 100, 00133, Rome, Italy.
- CETEMPS, Via Vetoio, 67100, L'Aquila, Italy.
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Chatzimentor A, Almpanidou V, Doxa A, Dimitriadis C, Mazaris AD. Projected redistribution of sea turtle foraging areas reveals important sites for conservation. CLIMATE CHANGE ECOLOGY 2021. [DOI: 10.1016/j.ecochg.2021.100038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Shift in demographic structure and increased reproductive activity of loggerhead turtles in the French Mediterranean Sea revealed by long-term monitoring. Sci Rep 2021; 11:23164. [PMID: 34848795 PMCID: PMC8633381 DOI: 10.1038/s41598-021-02629-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/19/2021] [Indexed: 12/05/2022] Open
Abstract
Climate-induced environmental changes are profoundly impacting marine ecosystems and altering species distribution worldwide. Migratory organisms, including sea turtles, are expected to be particularly sensitive to these variations. Here, we studied changes in the size structure and reproductive activity of loggerhead turtles in the French Mediterranean over 30 years. Overall, there was a significant increase in the size of observed loggerheads between 1990 and 2020. However, this increase was only significant during the breeding/nesting season (May to September) and was driven by the increased presence of adults. Furthermore, nesting activity along the French coast was detected in 2002 for the first time in more than 50 years, and has become frequent after 2014, with nests discovered every year. The number of eggs laid as well as incubation duration and success varied among sites but fell within the range reported at established Mediterranean nesting sites. These observations, along with recent reports of breeding activity and evidence of significant sea surface warming, suggest that the north-western Mediterranean basin has become increasingly suitable to loggerhead turtles. We postulate that this range expansion is the result of climate change and propose that emerging nesting activity in France should be closely monitored and guarded against human activities.
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Okuyama J, Ishii H, Tanizaki S, Suzuki T, Abe O, Nishizawa H, Yano A, Tsujimura M, Ishigaki T, Ishigaki T, Kobayashi M, Yanagida H. Quarter-Century (1993–2018) Nesting Trends in the Peripheral Populations of Three Sea Turtle Species at Ishigakijima Island, Japan. CHELONIAN CONSERVATION AND BIOLOGY 2020. [DOI: 10.2744/ccb-1428.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Junichi Okuyama
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Hisakazu Ishii
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Shigeo Tanizaki
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Tomoko Suzuki
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Osamu Abe
- Ishigaki Tropical Station, Seikai National Fisheries Research Institute, Ishigaki, Okinawa, 907-0451, Japan []
| | - Hideaki Nishizawa
- Graduate School of Informatics, Kyoto University, Yoshida-honmachi, Sakyo, Kyoto, 606-8501, Japan []
| | - Aya Yano
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Masako Tsujimura
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Takakazu Ishigaki
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Takashi Ishigaki
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Masahiro Kobayashi
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
| | - Hiroyuki Yanagida
- Ishigaki Island Sea Turtle Research Group, Arakawa 2357-11, Ishigaki, Okinawa, 907-0024, Japan [; ; ; ; ; bloodymoon_rise@yahoo
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13
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Maffucci F, Pace A, Affuso A, Ciampa M, Treglia G, Pignalosa A, Hochscheid S. Carapace scute pattern anomalies in the loggerhead turtle: are they indicative of hatchling’s survival probability? J Zool (1987) 2019. [DOI: 10.1111/jzo.12754] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- F. Maffucci
- IMOM Unit RIMAR Department Stazione Zoologica Anton Dohrn Naples Italy
| | - A. Pace
- Marine Turtle Research Center Stazione Zoologica Anton Dohrn Portici Italy
| | - A. Affuso
- Marine Turtle Research Center Stazione Zoologica Anton Dohrn Portici Italy
| | - M. Ciampa
- Marine Turtle Research Center Stazione Zoologica Anton Dohrn Portici Italy
| | - G. Treglia
- Marine Turtle Research Center Stazione Zoologica Anton Dohrn Portici Italy
| | - A. Pignalosa
- Marine Turtle Research Center Stazione Zoologica Anton Dohrn Portici Italy
| | - S. Hochscheid
- Marine Turtle Research Center Stazione Zoologica Anton Dohrn Portici Italy
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14
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Pace A, Dipineto L, Fioretti A, Hochscheid S. Loggerhead sea turtles as sentinels in the western Mediterranean: antibiotic resistance and environment-related modifications of Gram-negative bacteria. MARINE POLLUTION BULLETIN 2019; 149:110575. [PMID: 31550577 DOI: 10.1016/j.marpolbul.2019.110575] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 07/18/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
Sea turtles possess relevant characteristics to serve as sentinel species for monitoring the health of marine ecosystems, which is currently threatened. This study examined 35 loggerhead turtles from the western Mediterranean, focusing on the oral and cloacal prevalence of aerobic Gram-negative bacteria, their antibiotic resistance and the influence of several variables linked both to the animal and the environment (i.e. estimated life stage; area, season and cause of recovery; plastic ingestion). Conventional bacteriology methods led to the isolation of bacterial families commonly regarded as opportunistic pathogens (i.e. Aeromonadaceae; Enterobacteriaceae; Pseudomonadaceae; Shewanellaceae; Vibrionaceae), but pointing out sea turtles as carriers of potential zoonotic agents. The high rates of antibiotic resistance, here detected, raise important concerns on the dissemination of this phenomenon in marine environments. Moreover, several of the examined variables showed a significant influence on the prevalence of bacterial families, strengthening the role of sea turtles as mirrors of their ecosystems.
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Affiliation(s)
- Antonino Pace
- Department of Veterinary Medicine and Animal Productions, University Federico II, Via Delpino 1, 80137 Naples, Italy; Marine Turtle Research Centre, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, NA, Italy.
| | - Ludovico Dipineto
- Department of Veterinary Medicine and Animal Productions, University Federico II, Via Delpino 1, 80137 Naples, Italy.
| | - Alessandro Fioretti
- Department of Veterinary Medicine and Animal Productions, University Federico II, Via Delpino 1, 80137 Naples, Italy.
| | - Sandra Hochscheid
- Marine Turtle Research Centre, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, NA, Italy.
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15
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Arcangeli A, Maffucci F, Atzori F, Azzolin M, Campana I, Carosso L, Crosti R, Frau F, David L, Di-Méglio N, Roul M, Gregorietti M, Mazzucato V, Pellegrino G, Giacoletti A, Paraboschi M, Zampollo A, de Lucia GA, Hochscheid S. Turtles on the trash track: loggerhead turtles exposed to floating plastic in the Mediterranean Sea. ENDANGER SPECIES RES 2019. [DOI: 10.3354/esr00980] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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16
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Ribera d’Alcalà M. Similarities, differences and mechanisms of climate impact on terrestrial vs. marine ecosystems. NATURE CONSERVATION 2019. [DOI: 10.3897/natureconservation.34.30923] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Comparisons between terrestrial and marine ecosystems are generally not in the main stream of scientific literature even though Webb (2012) listed several points for which the transfer of knowledge and concepts related to one or to the other system would benefit our understanding of both. Even sharing this view, the leading hypothesis behind this contribution is that the pelagic system, where the dominant biotic component by number and biomass is microscopic, has specific features which strongly differentiate it from the above-the-surface terrestrial systems. Due to this, climate change, i.e. changes in temperature, precipitation and most importantly in the dynamics of the two fluid media, atmosphere and ocean, act with different mechanisms which prevents proceeding with analogies in many cases. In addition, the non-linearity of most of the processes and responses to perturbations requires, in order to obtain reliable forecasts or hindcasts, a detailed analysis of the path followed by the system which is normally overlooked in the step-change simulations or projections.
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17
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Casale P, Broderick AC, Camiñas JA, Cardona L, Carreras C, Demetropoulos A, Fuller WJ, Godley BJ, Hochscheid S, Kaska Y, Lazar B, Margaritoulis D, Panagopoulou A, Rees AF, Tomás J, Türkozan O. Mediterranean sea turtles: current knowledge and priorities for conservation and research. ENDANGER SPECIES RES 2018. [DOI: 10.3354/esr00901] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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18
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Heppenheimer E, Cosio DS, Brzeski KE, Caudill D, Van Why K, Chamberlain MJ, Hinton JW, vonHoldt B. Demographic history influences spatial patterns of genetic diversityin recently expanded coyote (Canis latrans) populations. Heredity (Edinb) 2018; 120:183-195. [PMID: 29269931 PMCID: PMC5836586 DOI: 10.1038/s41437-017-0014-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/06/2017] [Accepted: 10/03/2017] [Indexed: 11/09/2022] Open
Abstract
Human-mediated range expansions have increased in recent decades and represent unique opportunities to evaluate genetic outcomes of establishing peripheral populations across broad expansion fronts. Over the past century, coyotes (Canis latrans) have undergone a pervasive range expansion and now inhabit every state in the continental United States. Coyote expansion into eastern North America was facilitated by anthropogenic landscape changes and followed two broad expansion fronts. The northern expansion extended through the Great Lakes region and southern Canada, where hybridization with remnant wolf populations was common. The southern and more recent expansion front occurred approximately 40 years later and across territory where gray wolves have been historically absent and remnant red wolves were extirpated in the 1970s. We conducted a genetic survey at 10 microsatellite loci of 482 coyotes originating from 11 eastern U.S. states to address how divergent demographic histories influence geographic patterns of genetic diversity. We found that population structure corresponded to a north-south divide, which is consistent with the two known expansion routes. Additionally, we observed extremely high genetic diversity, which is atypical of recently expanded populations and is likely the result of multiple complex demographic processes, in addition to hybridization with other Canis species. Finally, we considered the transition of allele frequencies across geographic space and suggest the mid-Atlantic states of North Carolina and Virginia as an emerging contact zone between these two distinct coyote expansion fronts.
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Affiliation(s)
- Elizabeth Heppenheimer
- Department of Ecology & Evolutionary Biology, Princeton University, 106 A Guyot Hall, Princeton, NJ, 08544, USA.
| | - Daniela S Cosio
- Department of Ecology & Evolutionary Biology, Princeton University, 106 A Guyot Hall, Princeton, NJ, 08544, USA
| | - Kristin E Brzeski
- Department of Ecology & Evolutionary Biology, Princeton University, 106 A Guyot Hall, Princeton, NJ, 08544, USA
| | - Danny Caudill
- Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, 1105 SW Williston Road, Gainesville, FL, 32601, USA
- Alaska Department of Fish Game, 1300 College Road, Fairbanks, AK, 99701, USA
| | - Kyle Van Why
- United States Department of Agriculture, Animal Plant Health Inspection Service, Wildlife Services, PO Box 60827, Harrisburg, PA, 17106, USA
| | - Michael J Chamberlain
- Warnell School of Forestry and Natural Resources, University of Georgia, 180 E Green Street, Athens, GA, 30621, USA
| | - Joseph W Hinton
- Warnell School of Forestry and Natural Resources, University of Georgia, 180 E Green Street, Athens, GA, 30621, USA
| | - Bridgett vonHoldt
- Department of Ecology & Evolutionary Biology, Princeton University, 106 A Guyot Hall, Princeton, NJ, 08544, USA
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Carreras C, Pascual M, Tomás J, Marco A, Hochscheid S, Castillo JJ, Gozalbes P, Parga M, Piovano S, Cardona L. Sporadic nesting reveals long distance colonisation in the philopatric loggerhead sea turtle (Caretta caretta). Sci Rep 2018; 8:1435. [PMID: 29362421 PMCID: PMC5780500 DOI: 10.1038/s41598-018-19887-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 01/10/2018] [Indexed: 11/08/2022] Open
Abstract
The colonisation of new suitable habitats is crucial for species survival at evolutionary scale under changing environmental conditions. However, colonisation potential may be limited by philopatry that facilitates exploiting successful habitats across generations. We examine the mechanisms of long distance dispersal of the philopatric loggerhead sea turtle (Caretta caretta) by analysing 40 sporadic nesting events in the western Mediterranean. The analysis of a fragment of the mitochondrial DNA and 7 microsatellites of 121 samples from 18 of these nesting events revealed that these nests were colonising events associated with juveniles from distant populations feeding in nearby foraging grounds. Considering the temperature-dependent sex determination of the species, we simulated the effect of the incubation temperature and propagule pressure on a potential colonisation scenario. Our results indicated that colonisation will succeed if warm temperature conditions, already existing in some of the beaches in the area, extend to the whole western Mediterranean. We hypothesize that the sporadic nesting events in developmental foraging grounds may be a mechanism to overcome philopatry limitations thus increasing the dispersal capabilities of the species and the adaptability to changing environments. Sporadic nesting in the western Mediterranean can be viewed as potential new populations in a scenario of rising temperatures.
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Affiliation(s)
- Carlos Carreras
- Department of Genetics, Microbiology and Statistics and IRBio, University of Barcelona, Av.Diagonal 643, E-08028, Barcelona, Spain.
- Centre for Ecology and Conservation, University of Exeter, Cornwall Campus, Penryn, TR10 9EZ, UK.
| | - Marta Pascual
- Department of Genetics, Microbiology and Statistics and IRBio, University of Barcelona, Av.Diagonal 643, E-08028, Barcelona, Spain
| | - Jesús Tomás
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Apdo. 22085, E-46071, Valencia, Spain
| | - Adolfo Marco
- Estación Biológica de Doñana, CSIC, c/ Américo Vespucio s/n, E-41092, Sevilla, Spain
| | - Sandra Hochscheid
- Marine Turtle Research Centre, Department RIMAR, Stazione Zoologica Anton Dohrn, Via Nuova Macello, 80055, Portici, Italy
| | - Juan José Castillo
- CREMA (Centro de Recuperación de Especies Marinas Amenazadas), Aula del Mar de Málaga-Consejería de Medio Ambiente de la Junta de Andalucía, c/Pacífico 80, E-29004, Málaga, Spain
| | - Patricia Gozalbes
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Apdo. 22085, E-46071, Valencia, Spain
| | - Mariluz Parga
- Submon Marine Conservation, Rabassa 49, E-08024, Barcelona, Spain
- Marine Animal Rescue Center (CRAM), Passeig de la Platja 28-30, E-08820, El Prat de Llobregat, Spain
| | - Susanna Piovano
- Dipartimento di Biologia Animale e dell'Uomo, University of Torino, Via Accademia Albertina 13, 10123, Turin, Italy
- School of Marine Studies, The University of the South Pacific, Laucala Campus, Prive Mail Bag, Suva, Fiji
| | - Luis Cardona
- Department of Evolutionary Biology, Ecology and Environmental Sciences and IRBIo, University of Barcelona, Avda. Diagonal 643, E-08028, Barcelona, Spain
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20
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Crespo-Picazo JL, García-Parraga D, Domènech F, Tomás J, Aznar FJ, Ortega J, Corpa JM. Parasitic outbreak of the copepod Balaenophilus manatorum in neonate loggerhead sea turtles (Caretta caretta) from a head-starting program. BMC Vet Res 2017; 13:154. [PMID: 28577532 PMCID: PMC5457584 DOI: 10.1186/s12917-017-1074-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 05/23/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diseases associated to external parasitosis are scarcely reported in sea turtles. During the last decades several organism have been documented as a part of normal epibiont community connected to sea turtles. The copepod Balaenophilus manatorum has been cited as a part of epibiont fauna with some concern about its parasitic capacity. This study serves three purposes, i.e. (i) it sheds light on the type of life style that B. manatorum has developed with its hosts, particularly turtles; (ii) it makes a cautionary note of the potential health risks associated with B. manatorum in sea turtles under captivity conditions and in the wild, and (iii) it provides data on effective treatments against B. manatorum. RESULTS We report for the first time a massive infestation of the copepod B. manatorum and subsequent acute mortality in a group of loggerhead sea turtle hatchlings. Four-month-old turtles from a head-starting program started exhibiting excitatory and fin rubbing behavior preceding an acute onset of lethargy, skin ulceration and death in some animals. All the individuals (n = 57) were affected by severe copepod load and presented different degrees of external macroscopic skin lesions. The ventral area of front flippers, axillar and pericloacal skin were mostly affected, and were the main parasite distribution regions. Copepods were also detected on plastron and carapace sutures. The gut contents of B. manatorum reacted positively for cytokeratin, indicating consumption of turtle skin. Severe ulcerative necrotic dermatitis and large amount of bacteria presence were the major histopathological findings. CONCLUSIONS Individual fresh water immersion for 10 min and lufenuron administration (0.1 ppm) to the water system every 2 weeks proved effective for removing turtle parasites and to control re-infestation, respectively. The results from our study clearly indicated that B. manatorum individuals consume turtle skin. The pathological effects of this agent and the potential implications in sea turtle conservation and management are discussed.
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Affiliation(s)
- J L Crespo-Picazo
- Veterinary Services, Fundación Oceanogràfic de la Comunitat Valenciana, Eduardo Primo Yúfera 1B, 46013, Valencia, Spain.
| | - D García-Parraga
- Veterinary Services, Fundación Oceanogràfic de la Comunitat Valenciana, Eduardo Primo Yúfera 1B, 46013, Valencia, Spain
| | - F Domènech
- Marine Zoology Unit, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain
| | - J Tomás
- Marine Zoology Unit, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain
| | - F J Aznar
- Marine Zoology Unit, Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain
| | - J Ortega
- Biomedical Sciences Research Institute, PASACTA (Histología y Anatomía Patológica), Faculty of Veterinary Medicine, Universidad CEU Cardenal Herrera, Avda. Seminario, s/n, 46113, Moncada, Valencia, Spain
| | - J M Corpa
- Biomedical Sciences Research Institute, PASACTA (Histología y Anatomía Patológica), Faculty of Veterinary Medicine, Universidad CEU Cardenal Herrera, Avda. Seminario, s/n, 46113, Moncada, Valencia, Spain
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21
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Corrado R, Lacorata G, Palatella L, Santoleri R, Zambianchi E. General characteristics of relative dispersion in the ocean. Sci Rep 2017; 7:46291. [PMID: 28397797 PMCID: PMC5387742 DOI: 10.1038/srep46291] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 03/15/2017] [Indexed: 11/26/2022] Open
Abstract
The multi-scale and nonlinear nature of the ocean dynamics dramatically affects the spreading of matter, like pollutants, marine litter, etc., of physical and chemical seawater properties, and the biological connectivity inside and among different basins. Based on the Finite-Scale Lyapunov Exponent analysis of the largest available near-surface Lagrangian data set from the Global Drifter Program, our results show that, despite the large variety of flow features, relative dispersion can ultimately be described by a few parameters common to all ocean sub-basins, at least in terms of order of magnitude. This provides valuable information to undertake Lagrangian dispersion studies by means of models and/or of observational data. Moreover, our results show that the relative dispersion rates measured at submesoscale are significantly higher than for large-scale dynamics. Auxiliary analysis of high resolution GPS-tracked drifter hourly data as well as of the drogued/undrogued status of the buoys is provided in support of our conclusions. A possible application of our study, concerning reverse drifter motion and error growth analysis, is proposed relatively to the case of the missing Malaysia Airlines MH370 aircraft.
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Affiliation(s)
- Raffaele Corrado
- CNR, Institute of Atmospheric and Climate Sciences, Lecce, I-73100, Italy
| | - Guglielmo Lacorata
- CNR, Institute of Atmospheric and Climate Sciences, Lecce, I-73100, Italy
| | - Luigi Palatella
- CNR, Institute of Atmospheric and Climate Sciences, Lecce, I-73100, Italy
| | - Rosalia Santoleri
- CNR, Institute of Atmospheric and Climate Sciences, Rome, I-00133, Italy
| | - Enrico Zambianchi
- CNR, Institute of Atmospheric and Climate Sciences, Rome, I-00133, Italy.,University of Naples "Parthenope" and CONISMA, Naples, I-80143, Italy
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Rees AF, Alfaro-Shigueto J, Barata PCR, Bjorndal KA, Bolten AB, Bourjea J, Broderick AC, Campbell LM, Cardona L, Carreras C, Casale P, Ceriani SA, Dutton PH, Eguchi T, Formia A, Fuentes MMPB, Fuller WJ, Girondot M, Godfrey MH, Hamann M, Hart KM, Hays GC, Hochscheid S, Kaska Y, Jensen MP, Mangel JC, Mortimer JA, Naro-Maciel E, Ng CKY, Nichols WJ, Phillott AD, Reina RD, Revuelta O, Schofield G, Seminoff JA, Shanker K, Tomás J, van de Merwe JP, Van Houtan KS, Vander Zanden HB, Wallace BP, Wedemeyer-Strombel KR, Work TM, Godley BJ. Are we working towards global research priorities for management and conservation of sea turtles? ENDANGER SPECIES RES 2016. [DOI: 10.3354/esr00801] [Citation(s) in RCA: 175] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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