Results 41 to 50 of about 7,386,477 (299)

Blue Whale Body Condition Assessed Over a 14-Year Period in the NE Pacific: Annual Variation and Connection to Measures of Ocean Productivity

Frontiers in Marine Science, 2022
Large marine mammals can serve as an indicator of the overall state of the environment due to their apex position in marine food webs and their functions as sentinels of change.
Rachel Wachtendonk, Rachel Wachtendonk, John Calambokidis, Kiirsten Flynn   +3 more
doaj   +1 more source

Acoustics and photo-identification provide new insights on killer whale presence and movements when interacting with longline fisheries in South East Australia

, 2021
Removal of target catch from longlines by marine mammals, known as depredation, is a global issue creating animal welfare, socioeconomic and management concerns.
Matthew C. Cieslak, P. Tixier, G. Richard, M. Hindell, J. Arnould, Mary-Anne Lea   +5 more
semanticscholar   +1 more source

Genetic markers validate photo-identification and uniqueness of spot patterns in whale sharks

, 2021
Monitoring the demographics and movement patterns of mobile marine species underpins appropriate management and conservation strategies. Photographic identification of whale sharks Rhincodon typus based on individual variations in spot patterns is a ...
A. Meenakshisundaram, Luke Thomas, W. J. Kennington, M. Thums, E. Lester, M. Meekan   +5 more
semanticscholar   +1 more source

A simple tool for linking photo-identification with multimedia data to track mammal behaviour

Mammalian Biology, 2021
Identifying individual animals is critical to describe demographic and behavioural patterns, and to investigate the ecological and evolutionary underpinnings of these patterns.
A. M. S. Machado, M. Cantor
semanticscholar   +1 more source

Long-Term Population and Distribution Dynamics of an Endangered Irrawaddy Dolphin Population in Balikpapan Bay, Indonesia in Response to Coastal Development

Frontiers in Marine Science, 2020
Worldwide, cetaceans are impacted by human activities, and those populations that occur in shallow-nearshore habitats are particularly vulnerable. We present the results of the first long-term study on the responses of a coastal population of endangered ...
Danielle Kreb, Stanislav Lhota, Lindsay Porter, Alexandra Redman, Imelda Susanti, Milan Lazecky   +5 more
doaj   +1 more source

Photo-identification as a technique for recognition of individual fish: a test with the freshwater armored catfish Rineloricaria aequalicuspis Reis & Cardoso, 2001 (Siluriformes: Loricariidae)

Neotropical Ichthyology
Photo-identification allows individual recognition of animal species based on natural marks, being an alternative to other more stressful artificial tagging/marking techniques.
Renato B. Dala-Corte, Júlia B. Moschetta, Fernando G. Becker   +2 more
doaj   +1 more source

Individual photographic identification based on unique colour pattern of the thorax of Acherontia atropos (Linnaeus, 1758) (Lepidoptera: Sphingidae)

SHILAP, 2022
Natural marks have increasingly been used as a tool for individual identification. One of the most popular techniques used by natural marks as an individual recognition tool is photo-identification.
A. Ruiz de la Hermosa, F. Truyols-Hermosa, S. Pinya   +2 more
doaj   +1 more source

Identification of a key nucleotide influencing Cas12a crRNA activity for universal photo-controlled CRISPR diagnostics

Nature Communications
Developing a one-pot assay is a critical strategy for enhancing the applicability of CRISPR-based molecular diagnostics; however, it is hindered by CRISPR cleavage interfering with nucleic acid amplification templates. Photo-regulation strategies provide
Tian Tian, Hongrui Xiao, Xinyi Guo, Yuxin Chen, Zhiqiang Qiu, Ting Zhang, Meiyu Chen, Weiwei Qi, Peige Cai, Meng Cheng, Xiao-Ming Zhou   +10 more
semanticscholar   +1 more source

Insights into site fidelity of a low-density dugong population using small-drone imagery and photo-identification

Frontiers in Marine Science
The feasibility of using unoccupied aerial vehicles (UAVs, ‘drones’) to collect high-resolution still and video imagery of dugongs (Dugong dugon) for photo-identification (photo-ID) in the Sindalah Archipelago, NEOM (area ~ 84 km2), within the northeast ...
Roxana Newman, Ashwag Asseri, William David Paterson, Deni Porej, Harry Clark, Mishari Alghrair, Winston Cowie, David Charles Wells, Amanda Jane Hodgson   +8 more
doaj   +1 more source

FEATURED PHOTO: IDENTIFICATION PROBLEMS WITH LARGE GULLS

Western Birds
The identification of large gulls is among the most difficult and contentious issues in North American field ornithology. A significant part of this problem is due to hybridization among various taxa, a phenomenon especially prevalent in western North ...
Steve N. G. Howell
semanticscholar   +1 more source