Results 31 to 40 of about 7,386,477 (299)

Underwater photo-identification of sperm whales (Physeter macrocephalus) off Mauritius

Marine Biology Research, 2022
The long-term monitoring of long-lived animals often requires individual identification. For cetaceans, this identification may be based on morphological characters observable from a boat such as shape, spots and cuts of the back, fluke and dorsal fins ...
Sarano Véronique, Sarano François, Girardet Justine, P. Axel, Vitry Hugues, Heuzey René, Sarano Marion, Delfour Fabienne, G. Hervé, Adam Olivier, Madon Bénédicte, Jean-Luc Jung   +11 more
semanticscholar   +1 more source

Integrating Multiple Techniques to Estimate Population Size of an Impacted Dusky Dolphin’s Population in Patagonia, Argentina

Frontiers in Marine Science, 2020
Successful conservation strategies require an accurate estimation of population size, and this parameter is one of the most important factors that determine the rate of various evolutionary processes. In this study, we integrated information from genetic,
Mariana Degrati, Mariana Degrati, Rocio Loizaga, Mariano A. Coscarella, Mariano A. Coscarella, Nicolás Sueyro, Nicolás Sueyro, Enrique A. Crespo, Enrique A. Crespo, Silvana L. Dans, Silvana L. Dans   +10 more
doaj   +1 more source

Plastron color patterns allows for individual photo-identification in two different chelonian species

Canadian Journal of Zoology, 2022
Natural marks have increasingly been used as a tool for individual identification in capture-mark-recapture techniques. Photo-identification is a non-invasive alternative to traditional marking techniques, allowing individual recognition of species ...
Marta Salom-Oliver, Andreu Ruiz-de la Hermosa Amengual, Aina Aguiló-Zuzama, A. Ribas-Serra, J. Vallespir, S. Tejada-Gavela, Samuel Pinya Fernández   +6 more
semanticscholar   +1 more source

Factors affecting the identification of individual mountain bongo antelope [PDF]

, 2015
The recognition of individuals forms the basis of many endangered species monitoring protocols. This process typically relies on manual recognition techniques.
Bindemann, Markus, Roberts, David L., David L. Roberts, Gibbon, Gwili E.M., Gwili E.M. Gibbon, Markus Bindemann   +5 more
core   +2 more sources

Effect of matching uncertainty on population parameter estimation in mark-recapture analysis of photo-identification data

Mammalian Biology, 2022
Quantifying and dealing with uncertainty are key aspects of ecological studies. Population parameter estimation from mark-recapture analyses of photo-identification data hinges on correctly matching individuals from photographs and assumes that ...
E. Ashe, P. Hammond
semanticscholar   +1 more source

Convolutional Neural Networks for Risso’s Dolphins Identification

IEEE Access, 2020
Photo-identification is one of the best practices to estimate the abundance of cetaceans and, as such, it can help to obtain the biological information necessary to decision-making and actions to preserve the marine environment and its biodiversity.
Rosalia Maglietta, Vito Reno, Rocco Caccioppoli, Emanuele Seller, Stefano Bellomo, Francesca Cornelia Santacesaria, Roberto Colella, Giulia Cipriano, Ettore Stella, Karin Hartman, Carmelo Fanizza, Giovanni Dimauro, Roberto Carlucci   +12 more
doaj   +1 more source

Contrasting Habitat Use and Population Dynamics of Reef Manta Rays Within the Nusa Penida Marine Protected Area, Indonesia

Frontiers in Marine Science, 2019
Manta rays (Mobula spp.) are highly valued in nature-based tourism globally. In Indonesia, although manta rays are protected, critical information is lacking on their habitat use, population dynamics and movements. We investigate the population structure
Elitza S. Germanov, Elitza S. Germanov, Elitza S. Germanov, Lars Bejder, Lars Bejder, Delphine B. H. Chabanne, Delphine B. H. Chabanne, Dharmadi Dharmadi, I. Gede Hendrawan, Andrea D. Marshall, Simon J. Pierce, Mike van Keulen, Mike van Keulen, Neil R. Loneragan, Neil R. Loneragan, Neil R. Loneragan   +15 more
doaj   +1 more source

Feeding grounds of the eastern South Pacific humpback whale population include the South Orkney Islands [PDF]

Polar Research, 2012
This paper reports on two photo-identified humpback whales (Megaptera novaeangliae) that were sighted in different years in the proximity of the South Orkney Islands, at the boundary between the Scotia and Weddell seas (60°54.5'S—46&#
Luciano Dalla Rosa, Fernando Félix, Peter T. Stevick, Eduardo R. Secchi, Judith M. Allen, Kim Chater, Anthony R. Martin, Manuela Bassoi   +7 more
doaj   +1 more source

Temporal and Spatial Evaluation of Mono(2-ethylhexyl) Phthalate (MEHP) Detection in Common Bottlenose Dolphins (Tursiops truncatus) from Sarasota Bay, Florida, USA

Oceans, 2022
Phthalates are endocrine-disrupting chemicals added to plastics, personal care products, cleaning solutions, and pesticides. Extensive use has led to its exposure to wildlife, including common bottlenose dolphins (Tursiops truncatus) from Sarasota Bay ...
Miranda K. Dziobak, Brian C. Balmer, Randall S. Wells, Emily C. Pisarski, Ed F. Wirth, Leslie B. Hart   +5 more
doaj   +1 more source

A Photo Identification Framework to Prevent Copyright Infringement with Manipulations

Applied Sciences, 2021
In recent years, copyright infringement has been one of the most serious problems that hamper the development of the culture and arts industry. Due to the limitations of existing image search services, these infringements have not been properly ...
Doyoung Kim, Suwoong Heo, Jiwoo Kang, Hogab Kang, Sanghoon Lee   +4 more
semanticscholar   +1 more source