{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T16:40:27Z","timestamp":1774543227291,"version":"3.50.1"},"reference-count":92,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2018,8,21]],"date-time":"2018-08-21T00:00:00Z","timestamp":1534809600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Nowadays, emerging technologies, such as long-range transmitters, increasingly miniaturized components for positioning, and enhanced imaging sensors, have led to an upsurge in the availability of new ecological applications for remote sensing based on unmanned aerial vehicles (UAVs), sometimes referred to as \u201cdrones\u201d. In fact, structure-from-motion (SfM) photogrammetry coupled with imagery acquired by UAVs offers a rapid and inexpensive tool to produce high-resolution orthomosaics, giving ecologists a new way for responsive, timely, and cost-effective monitoring of ecological processes. Here, we adopted a lightweight quadcopter as an aerial survey tool and object-based image analysis (OBIA) workflow to demonstrate the strength of such methods in producing very high spatial resolution maps of sensitive marine habitats. Therefore, three different coastal environments were mapped using the autonomous flight capability of a lightweight UAV equipped with a fully stabilized consumer-grade RGB digital camera. In particular we investigated a Posidonia oceanica seagrass meadow, a rocky coast with nurseries for juvenile fish, and two sandy areas showing biogenic reefs of Sabelleria alveolata. We adopted, for the first time, UAV-based raster thematic maps of these key coastal habitats, produced after OBIA classification, as a new method for fine-scale, low-cost, and time saving characterization of sensitive marine environments which may lead to a more effective and efficient monitoring and management of natural resources.<\/jats:p>","DOI":"10.3390\/rs10091331","type":"journal-article","created":{"date-parts":[[2018,8,21]],"date-time":"2018-08-21T11:12:42Z","timestamp":1534849962000},"page":"1331","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":180,"title":["Mapping and Classification of Ecologically Sensitive Marine Habitats Using Unmanned Aerial Vehicle (UAV) Imagery and Object-Based Image Analysis (OBIA)"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3548-360X","authenticated-orcid":false,"given":"Daniele","family":"Ventura","sequence":"first","affiliation":[{"name":"Department of Environmental Biology, University of Rome \u201cLa Sapienza\u201d, V. le dell\u2019Universit\u00e0 32, 00185 Rome, Italy"}]},{"given":"Andrea","family":"Bonifazi","sequence":"additional","affiliation":[{"name":"Laboratory of Experimental Ecology and Aquaculture, University of Rome \u201cTor Vergata\u201d, Via della Ricerca Scientifica, 00133 Rome, Italy"}]},{"given":"Maria Flavia","family":"Gravina","sequence":"additional","affiliation":[{"name":"Laboratory of Experimental Ecology and Aquaculture, University of Rome \u201cTor Vergata\u201d, Via della Ricerca Scientifica, 00133 Rome, Italy"}]},{"given":"Andrea","family":"Belluscio","sequence":"additional","affiliation":[{"name":"Department of Environmental Biology, University of Rome \u201cLa Sapienza\u201d, V. le dell\u2019Universit\u00e0 32, 00185 Rome, Italy"}]},{"given":"Giandomenico","family":"Ardizzone","sequence":"additional","affiliation":[{"name":"Department of Environmental Biology, University of Rome \u201cLa Sapienza\u201d, V. le dell\u2019Universit\u00e0 32, 00185 Rome, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2018,8,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"033542","DOI":"10.1117\/1.3216822","article-title":"Unmanned aerial vehicle-based remote sensing for rangeland assessment, monitoring, and management","volume":"3","author":"Laliberte","year":"2009","journal-title":"J. Appl. Remote Sens."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"397","DOI":"10.1111\/j.2041-210X.2011.00158.x","article-title":"Assessing biodiversity in forests using very high-resolution images and unmanned aerial vehicles","volume":"3","author":"Getzin","year":"2012","journal-title":"Methods Ecol. Evol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"11051","DOI":"10.3390\/rs61111051","article-title":"UAV flight experiments applied to the remote sensing of vegetated areas","volume":"6","author":"Barrado","year":"2014","journal-title":"Remote Sens."},{"key":"ref_4","first-page":"283","article-title":"3D modelling of inaccessible areas using uav-based aerial photography and structure from motion","volume":"Volume 35","author":"Obanawa","year":"2014","journal-title":"Chikei\/Transactions, Japanese Geomorphological Union"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1322","DOI":"10.1080\/00028487.2015.1088471","article-title":"Using aerial imagery to characterize redband trout habitat in a remote desert landscape","volume":"144","author":"Dauwalter","year":"2015","journal-title":"Trans. Am. Fish. Soc."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"5006","DOI":"10.3390\/rs5105006","article-title":"Processing and assessment of spectrometric, stereoscopic imagery collected using a lightweight UAV spectral camera for precision agriculture","volume":"5","author":"Honkavaara","year":"2013","journal-title":"Remote Sens."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Pe\u00f1a, J.M., Torres-S\u00e1nchez, J., de Castro, A.I., Kelly, M., and L\u00f3pez-Granados, F. (2013). Weed Mapping in Early-Season Maize Fields Using Object-Based Analysis of Unmanned Aerial Vehicle (UAV) Images. PLoS ONE, 8.","DOI":"10.1371\/journal.pone.0077151"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"168","DOI":"10.1016\/j.jsg.2016.02.012","article-title":"Mapping folds and fractures in basement and cover rocks using UAV photogrammetry, Cape Liptrap and Cape Paterson, Victoria, Australia","volume":"85","author":"Vollgger","year":"2016","journal-title":"J. Struct. Geol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"750","DOI":"10.2193\/0091-7648(2006)34[750:AAOSUA]2.0.CO;2","article-title":"An Assessment of Small Unmanned Aerial Vehicles for Wildlife Research","volume":"34","author":"Jones","year":"2006","journal-title":"Wildl. Soc. Bull."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1177\/194008291200500202","article-title":"Dawn of drone ecology: Low-cost autonomous aerial vehicles for conservation","volume":"5","author":"Koh","year":"2012","journal-title":"Trop. Conserv. Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"239","DOI":"10.1111\/mam.12046","article-title":"Are unmanned aircraft systems (UASs) the future of wildlife monitoring? A review of accomplishments and challenges","volume":"45","author":"Linchant","year":"2015","journal-title":"Mamm. Rev."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1519","DOI":"10.3390\/rs4061519","article-title":"Development of a UAV-LiDAR system with application to forest inventory","volume":"4","author":"Wallace","year":"2012","journal-title":"Remote Sens."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"661","DOI":"10.14358\/PERS.76.6.661","article-title":"Acquisition, Orthorectification, and Object-based Classification of Unmanned Aerial Vehicle (UAV) Imagery for Rangeland Monitoring","volume":"76","author":"Laliberte","year":"2010","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_14","unstructured":"Casbeer, D.W., Li, S.-M., Beard, R.W., Mehra, R.K., and McLain, T.W. (2015, January 8\u201310). Forest fire monitoring with multiple small UAVs. Proceedings of the 2005 American Control Conference, Portland, OR, USA."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"421","DOI":"10.1109\/DigitalHeritage.2015.7419539","article-title":"UAV-based post disaster assessment of cultural heritage sites following the 2014 South Napa Earthquake","volume":"Volume 2","author":"Meyer","year":"2015","journal-title":"Proceedings of the 2015 Digital Heritage International Congress, Digital Heritage"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"R1","DOI":"10.1088\/0266-5611\/14\/4\/001","article-title":"Synthetic aperture radar interferometry","volume":"14","author":"Bamler","year":"1998","journal-title":"Inverse Probl."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.rse.2011.09.026","article-title":"Sentinels for science: Potential of Sentinel-1,-2, and-3 missions for scientific observations of ocean, cryosphere, and land","volume":"120","author":"Rott","year":"2012","journal-title":"Remote Sens. Environ."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Geudtner, D., Torres, R., Snoeij, P., Davidson, M., and Rommen, B. (2014, January 13\u201318). Sentinel-1 system capabilities and applications. Proceedings of the 2014 IEEE Geoscience and Remote Sensing Symposium (IGARSS), Quebec City, QC, Canada.","DOI":"10.1109\/IGARSS.2014.6946711"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"138","DOI":"10.1890\/120150","article-title":"Lightweight unmanned aerial vehicles will revolutionize spatial ecology","volume":"11","author":"Anderson","year":"2013","journal-title":"Front. Ecol. Environ."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1093\/icesjms\/fsx100","article-title":"The potential for unmanned aerial vehicles (UAVs) to conduct marine fauna surveys in place of manned aircraft","volume":"75","author":"Colefax","year":"2018","journal-title":"ICES J. Mar. Sci."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1016\/j.eja.2014.01.004","article-title":"Tree height quantification using very high resolution imagery acquired from an unmanned aerial vehicle (UAV) and automatic 3D photo-reconstruction methods","volume":"55","author":"Angileri","year":"2014","journal-title":"Eur. J. Agron."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"6988","DOI":"10.3390\/rs6086988","article-title":"Using unmanned aerial vehicles (UAV) to quantify spatial gap patterns in forests","volume":"6","author":"Getzin","year":"2014","journal-title":"Remote Sens."},{"key":"ref_23","first-page":"53","article-title":"Using an unmanned aerial vehicle (UAV) to capture micro-topography of antarctic moss beds","volume":"27","author":"Lucieer","year":"2014","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Torres-s\u00e1nchez, J., Arquero, O., Torres-s\u00e1nchez, J., L\u00f3pez-granados, F., Serrano, N., and Arquero, O. (2015). High-Throughput 3-D Monitoring of Agricultural-Tree Plantations with Unmanned Aerial Vehicle (UAV) Technology High-Throughput 3-D Monitoring of Agricultural-Tree Plantations with Unmanned Aerial Vehicle (UAV) Technology. PLoS ONE, 10.","DOI":"10.1371\/journal.pone.0130479"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1126\/science.344.6183.459","article-title":"Drones flying high as new tool for field biologists","volume":"344","author":"Schiffman","year":"2014","journal-title":"Science"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Gonzalez, L.F., Montes, G.A., Puig, E., Johnson, S., Mengersen, K., and Gaston, K.J. (2016). Unmanned aerial vehicles (UAVs) and artificial intelligence revolutionizing wildlife monitoring and conservation. Sensors (Switzerland), 16.","DOI":"10.3390\/s16010097"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"27969","DOI":"10.3390\/s151127969","article-title":"Automated identification of river hydromorphological features using UAV high resolution aerial imagery","volume":"15","author":"Casado","year":"2015","journal-title":"Sensors (Switzerland)"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1002\/rra.2743","article-title":"Hyperspatial Remote Sensing of Channel Reach Morphology and Hydraulic Fish Habitat Using an Unmanned Aerial Vehicle (UAV): A First Assessment in the Context of River Research and Management","volume":"31","author":"Tamminga","year":"2015","journal-title":"River Res. Appl."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1760","DOI":"10.1890\/10-0677.1","article-title":"Bumble Bee Species\u2019 Responses to a Targeted Conservation Measure Depend on Landscape Context and Habitat Quality","volume":"21","author":"Carvell","year":"2015","journal-title":"Ecol. Appl."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"4","DOI":"10.2747\/1548-1603.48.1.4","article-title":"Image Processing and Classification Procedures for Analysis of Sub-decimeter Imagery Acquired with an Unmanned Aircraft over Arid Rangelands","volume":"48","author":"Laliberte","year":"2011","journal-title":"GISci. Remote Sens."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1016\/j.isprsjprs.2009.06.004","article-title":"Object Based Image Analysis for Remote Sensing","volume":"65","author":"Blaschke","year":"2010","journal-title":"J. Photogramm. Remote Sens."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"594","DOI":"10.3390\/f6030594","article-title":"Analysis of unmanned aerial system-based CIR images in forestry\u2014A new perspective to monitor pest infestation levels","volume":"6","author":"Lehmann","year":"2015","journal-title":"Forests"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Papakonstantinou, A., Topouzelis, K., and Pavlogeorgatos, G. (2016). Coastline Zones Identification and 3D Coastal Mapping Using UAV Spatial Data. ISPRS Int. J. Geo-Inf., 5.","DOI":"10.3390\/ijgi5060075"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1016\/j.ecss.2017.11.001","article-title":"Spatial assessment of intertidal seagrass meadows using optical imaging systems and a lightweight drone","volume":"200","author":"Duffy","year":"2018","journal-title":"Estuar. Coast. Shelf Sci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1117\/12.2279140","article-title":"Coastal habitat mapping in the Aegean Sea using high resolution orthophoto maps","volume":"Volume 10444","author":"Topouzelis","year":"2017","journal-title":"Proceedings of the Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017)"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"101","DOI":"10.5194\/isprsannals-I-4-101-2012","article-title":"Characterising Upland Swamps Using Object-Based Classification Methods and Hyper-Spatial Resolution Imagery Derived From an Unmanned Aerial Vehicle","volume":"4","author":"Lechner","year":"2012","journal-title":"ISPRS Ann. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"318","DOI":"10.2111\/REM-D-12-00154.1","article-title":"Cover estimations using object-based image analysis rule sets developed across multiple scales in pinyon-juniper woodlands","volume":"67","author":"Hulet","year":"2014","journal-title":"Rangel. Ecol. Manag."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"2195","DOI":"10.1016\/j.biocon.2010.06.004","article-title":"Human-driven impacts on marine habitats: A regional meta-analysis in the Mediterranean Sea","volume":"143","author":"Claudet","year":"2010","journal-title":"Biol. Conserv."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/0304-3770(75)90018-2","article-title":"Causes de la rarefaction et de la disparition des herbiers de Posidonia oceanica sur les cotes Francaises de la Mediterranee Causes of decrease and disappearance of the seagrass Posidonia oceanica on the French Mediterranean coast","volume":"1","author":"Peres","year":"1975","journal-title":"Aquat. Bot."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1016\/j.jembe.2003.09.003","article-title":"Boat anchoring on Posidonia oceanica beds in a marine protected area (Italy, western Mediterranean): Effect of anchor types in different anchoring stages","volume":"299","author":"Milazzo","year":"2004","journal-title":"J. Exp. Mar. Bio. Ecol."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"395","DOI":"10.1515\/BOT.2009.057","article-title":"Regression of Mediterranean seagrasses caused by natural processes and anthropogenic disturbances and stress: A critical review","volume":"52","author":"Boudouresque","year":"2009","journal-title":"Bot. Mar."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"45","DOI":"10.3354\/meps168045","article-title":"Spatial and temporal patterns of settlement among sparid fishes of the genus Diplodus in the northwestern Mediterranean","volume":"168","author":"Vigliola","year":"1998","journal-title":"Mar. Ecol. Prog. Ser."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1144\/GSL.SP.2000.178.01.02","article-title":"A temperate reef builder: An evaluation of the growth, morphology and composition of Sabellaria alveolata (L.) colonies on carbonate platforms in South Wales","volume":"178","author":"Naylor","year":"2000","journal-title":"Geol. Soc. Lond. Spec. Publ."},{"key":"ref_44","unstructured":"Gubbay, S., Sanders, N., Haynes, T., Janssen, J.A.M., Rodwell, J.R., Nieto, S., Garcia Criado, M., Beal, S., Borg, J., and Kennedy, M. (2016). European Red List of Habitats. Part 1. Marine Habitats, European Commission."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1002\/aqc.1206","article-title":"The conservation status of Sabellaria alveolata (L.) (Polychaeta: Sabellariidae) reefs in the Bay of Mont-Saint-Michel","volume":"21","author":"Desroy","year":"2011","journal-title":"Aquat. Conserv. Mar. Freshw. Ecosyst."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1016\/j.jembe.2016.02.001","article-title":"Human impacts on biogenic habitats: Effects of experimental trampling on Sabellaria alveolata (Linnaeus, 1767) reefs","volume":"478","author":"Plicanti","year":"2016","journal-title":"J. Exp. Mar. Biol. Ecol."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1016\/j.ecolind.2017.04.058","article-title":"Assessment of the impact of salvaging the Costa Concordia wreck on the deep coralligenous habitats","volume":"80","author":"Casoli","year":"2017","journal-title":"Ecol. Indic."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1016\/j.ecss.2017.11.017","article-title":"Sabellaria spinulosa (Polychaeta, Annelida) reefs in the Mediterranean Sea: Habitat mapping, dynamics and associated fauna for conservation management","volume":"200","author":"Gravina","year":"2018","journal-title":"Estuar. Coast. Shelf Sci."},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Ventura, D., Bonifazi, A., Gravina, M.F., and Ardizzone, G.D. (2017). Unmanned Aerial Systems (UASs) for Environmental Monitoring: A Review with Applications in Coastal Habitats. Aerial Robots-Aerodynamics, Control and Applications, InTech.","DOI":"10.5772\/intechopen.69598"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1007\/s00338-016-1522-0","article-title":"Mapping coral reefs using consumer-grade drones and structure from motion photogrammetry techniques","volume":"36","author":"Casella","year":"2017","journal-title":"Coral Reefs"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1392","DOI":"10.3390\/rs4051392","article-title":"An automated technique for generating georectified mosaics from ultra-high resolution unmanned aerial vehicle (UAV) imagery, based on structure from motion","volume":"4","author":"Turner","year":"2012","journal-title":"Remote Sens."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"487","DOI":"10.5194\/isprsarchives-XXXIX-B7-487-2012","article-title":"Direct georeferencing with on board navigation components of light weight UAV platforms","volume":"39","author":"Pfeifer","year":"2012","journal-title":"Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_53","unstructured":"Agisoft LLC (2018, July 10). St. Petersburg, Russia. Agisoft PhotoScan User Manual, Professional Edition, Version 1.4. Available online: http:\/\/www.agisoft.com."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1007\/s13157-014-0612-4","article-title":"Use of Unmanned Aircraft Systems to Delineate Fine-Scale Wetland Vegetation Communities","volume":"35","author":"Zweig","year":"2015","journal-title":"Wetlands"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"1108","DOI":"10.1016\/j.jas.2012.08.040","article-title":"Towards a three-dimensional cost-effective registration of the archaeological heritage","volume":"40","author":"Plets","year":"2013","journal-title":"J. Archaeol. Sci."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"17471","DOI":"10.3390\/s140917471","article-title":"Calibration of action cameras for photogrammetric purposes","volume":"14","author":"Balletti","year":"2014","journal-title":"Sensors"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1002\/esp.3613","article-title":"Quantifying submerged fluvial topography using hyperspatial resolution UAS imagery and structure from motion photogrammetry","volume":"40","author":"Woodget","year":"2015","journal-title":"Earth Surf. Process. Landf."},{"key":"ref_58","unstructured":"(2011). eCognition Developer 8.7\u2014Reference Book, Trimble."},{"key":"ref_59","unstructured":"(2011). Trimble eCognition Developer 8.7 Reference, Trimble Germany GmbH."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"31","DOI":"10.5194\/isprsannals-II-7-31-2014","article-title":"Parameter-Based Performance Analysis of Object-Based Image Analysis Using Aerial and Quikbird-2 Images","volume":"II-7","author":"Kavzoglu","year":"2014","journal-title":"ISPRS Ann. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1016\/S0034-4257(01)00295-4","article-title":"Status of land cover classification accuracy assessment","volume":"80","author":"Foody","year":"2002","journal-title":"Remote Sens. Environ."},{"key":"ref_62","unstructured":"Congalton, R.G., and Green, K. (2002). Assessing the Accuracy of Remotely Sensed Data: Principles and Practices, CRC Press."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1093\/ptj\/85.3.257","article-title":"Interpretation, and Sample Size Requirements The Kappa Statistic in Reliability Studies: Use, Interpretation, and Sample Size Requirements","volume":"85","author":"Sim","year":"2005","journal-title":"Phys. Ther."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/S0272-7714(02)00123-3","article-title":"Posidonia oceanica \u201cbanquettes\u201d: A preliminary assessment of the relevance for meadow carbon and nutrients budget","volume":"56","author":"Mateo","year":"2003","journal-title":"Estuar. Coast. Shelf Sci."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"309","DOI":"10.1007\/BF00024471","article-title":"Microhabitat requirements for settlement of juvenile sparid fishes on Mediterranean rocky shores","volume":"300\u2013301","author":"Harmelin","year":"1995","journal-title":"Hydrobiologia"},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"1013","DOI":"10.1111\/maec.12198","article-title":"Temporal partitioning of microhabitat use among four juvenile fish species of the genus Diplodus (Pisces: Perciformes, Sparidae)","volume":"36","author":"Ventura","year":"2015","journal-title":"Mar. Ecol."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/j.ecolind.2016.09.038","article-title":"Statistical analysis of the distribution of infralittoral Cystoseira populations on pristine coasts of four Tyrrhenian islands: Proposed adjustment to the CARLIT index","volume":"73","author":"Lasinio","year":"2017","journal-title":"Ecol. Indic."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"14638","DOI":"10.1038\/s41598-017-15291-y","article-title":"Juvenile fish assemblages in temperate rocky reefs are shaped by the presence of macro-algae canopy and its three-dimensional structure","volume":"7","author":"Pastor","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_69","doi-asserted-by":"crossref","unstructured":"Manfreda, S., McCabe, M.F., Miller, P.E., Lucas, R., Pajuelo Madrigal, V., Mallinis, G., Ben Dor, E., Helman, D., Estes, L., and Ciraolo, G. (2018). On the Use of Unmanned Aerial Systems for Environmental Monitoring. Remote Sens., 10.","DOI":"10.20944\/preprints201803.0097.v1"},{"key":"ref_70","first-page":"21","article-title":"Automated object-based classification of topography from SRTM data","volume":"141","author":"Eisank","year":"2012","journal-title":"Geomorphology"},{"key":"ref_71","first-page":"884","article-title":"Comparing object-based and pixel-based classifications for mapping savannas","volume":"13","author":"Whiteside","year":"2011","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"3035","DOI":"10.1080\/01431160600617194","article-title":"Parameter selection for region-growing image segmentation algorithms using spatial autocorrelation","volume":"27","author":"Espindola","year":"2006","journal-title":"Int. J. Remote Sens."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"859","DOI":"10.1080\/13658810903174803","article-title":"ESP: A tool to estimate scale parameter for multiresolution image segmentation of remotely sensed data","volume":"24","author":"Tiede","year":"2010","journal-title":"Int. J. Geogr. Inf. Sci."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"761","DOI":"10.1109\/TGRS.2008.2009355","article-title":"Texture and scale in object-based analysis of subdecimeter resolution unmanned aerial vehicle (UAV) imagery","volume":"47","author":"Laliberte","year":"2009","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/j.coastaleng.2016.03.011","article-title":"UAVs for coastal surveying","volume":"114","author":"Turner","year":"2016","journal-title":"Coast. Eng."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"1705","DOI":"10.1002\/esp.1595","article-title":"Very high spatial resolution imagery for channel bathymetry and topography from an unmanned mapping controlled platform","volume":"32","author":"Lejot","year":"2007","journal-title":"Earth Surf. Process. Landf. J. Br. Geomorphol. Res. Gr."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1139\/juvs-2015-0005","article-title":"Aerial photography collected with a multirotor drone reveals impact of Eurasian beaver reintroduction on ecosystem structure","volume":"3","author":"Puttock","year":"2015","journal-title":"J. Unmanned Veh. Syst."},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1007\/s10530-010-9858-9","article-title":"Illegal trawling and induced invasive algal spread as collaborative factors in a Posidonia oceanica meadow degradation","volume":"13","author":"Kiparissis","year":"2011","journal-title":"Biol. Invasions"},{"key":"ref_79","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1016\/S0399-1784(99)80037-1","article-title":"Effects of fish farming on seagrass (Posidonia oceanica) in a Mediterranean bay: Seagrass decline after organic loading cessation","volume":"22","author":"Delgado","year":"1999","journal-title":"Oceanol. Acta"},{"key":"ref_80","doi-asserted-by":"crossref","first-page":"1523","DOI":"10.1016\/j.marpolbul.2003.08.021","article-title":"Effects of disturbances caused by coastal constructions on spatial structure, growth dynamics and photosynthesis of the seagrass Posidonia oceanica","volume":"46","author":"Ruiz","year":"2003","journal-title":"Mar. Pollut. Bull."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1016\/0304-3770(89)90092-2","article-title":"Effect of boat moorings on seagrass beds near Perth, Western Australia","volume":"36","author":"Walker","year":"1989","journal-title":"Aquat. Bot."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"391","DOI":"10.1002\/(SICI)1099-0755(199907\/08)9:4<391::AID-AQC356>3.0.CO;2-8","article-title":"Effects of boat anchoring in Posidonia oceanica seagrass beds in the Port-Cros National Park (north-western Mediterranean Sea)","volume":"9","author":"Francour","year":"1999","journal-title":"Aquat. Conserv. Mar. Freshw. Ecosyst."},{"key":"ref_83","first-page":"90","article-title":"Distribuzione spaziale delle praterie di Posidonia oceanica nell\u2019Area Marina Protetta di Portofino","volume":"13","author":"Montefalcone","year":"2006","journal-title":"Biol. Mar. Mediterr."},{"key":"ref_84","doi-asserted-by":"crossref","first-page":"633","DOI":"10.1641\/0006-3568(2001)051[0633:TICAMO]2.0.CO;2","article-title":"The identification, conservation, and management of estuarine and marine nurseries for fish and invertebrates: A better understanding of the habitats that serve as nurseries for marine species and the factors that create site-specific variability in nurse","volume":"51","author":"Beck","year":"2001","journal-title":"Bioscience"},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.fishres.2013.08.014","article-title":"Coastal man-made habitats: Potential nurseries for an exploited fish species, Diplodus sargus (Linnaeus, 1758)","volume":"148","author":"Pastor","year":"2013","journal-title":"Fish. Res."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"100","DOI":"10.5670\/oceanog.2007.33","article-title":"Population connectivity and conservation of marine biodiversity","volume":"20","author":"JoNeS","year":"2007","journal-title":"Oceanography"},{"key":"ref_87","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0022-0981(97)00164-0","article-title":"Habitat characteristics affecting fish assemblages on a Hawaiian coral reef","volume":"224","author":"Friedlander","year":"1998","journal-title":"J. Exp. Mar. Biol. Ecol."},{"key":"ref_88","doi-asserted-by":"crossref","first-page":"309","DOI":"10.1006\/ecss.2001.0907","article-title":"Post-settlement life cycle migration patterns and habitat preference of coral reef fish that use seagrass and mangrove habitats as nurseries","volume":"55","author":"Pollux","year":"2002","journal-title":"Estuar. Coast. Shelf Sci."},{"key":"ref_89","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1579\/07-A-317.1","article-title":"Considering the functional value of common marine species as a conservation stake: The case of sandmason worm Lanice conchilega (Pallas 1766) (Annelida, Polychaeta) beds","volume":"37","author":"Godet","year":"2008","journal-title":"Ambio J. Hum. Environ."},{"key":"ref_90","doi-asserted-by":"crossref","first-page":"243","DOI":"10.3354\/meps07011","article-title":"Distribution and retention of Sabellaria alveolata larvae (Polychaeta: Sabellariidae) in the Bay of Mont-Saint-Michel, France","volume":"346","author":"Dubois","year":"2007","journal-title":"Mar. Ecol. Prog. Ser."},{"key":"ref_91","doi-asserted-by":"crossref","first-page":"1105","DOI":"10.5194\/isprs-archives-XLI-B1-1105-2016","article-title":"Uav Monitoring for Environmental Management in Galapagos Islands","volume":"41","author":"Ballari","year":"2016","journal-title":"Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_92","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1002\/aqc.2654","article-title":"Drones that see through waves\u2014Preliminary results from airborne fluid lensing for centimetre-scale aquatic conservation","volume":"26","author":"Chirayath","year":"2016","journal-title":"Aquat. Conserv. Mar. Freshw. 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