Results 121 to 130 of about 890,693 (237)

Comparing Drone and Vessel‐Based Imaging to Quantify Epibiont Coverage on Humpback Whales

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Cetacean epibionts offer noninvasive insights into host health, physiology, and spatial ecology, yet quantitative assessments in wild populations remain scarce. Although vessel‐based observations may be limited by field of view and analyst input, unoccupied aerial vehicles (UAVs; drones) are increasingly used to monitor cetacean health indices,
Isabel A. R. Taylor, Ticiana Fettermann, Barry McGovern, David S. Schoeman, Adrian B. McCallum, Stephanie H. Stack   +5 more
wiley   +1 more source

Differential expression of liver fluke β-tubulin isotypes at selected life cycle stages

, 2013
We have shown that Fasciola hepatica expresses at least six β-tubulins in the adult stage of its life cycle, designated F.hep-β-tub1–6 (Ryan et al., 2008). Here we show that different complements of tubulin isotypes are expressed in different tissues and
Timson, David J., Brennan, Gerry P., Trudgett, Alan, Fuchs, Marc-Aurel, Moore, Catherine M., Hoey, Elizabeth M., Ryan, Louise A., Fairweather, Ian, Chambers, Emma L.   +8 more
core   +1 more source

A Global Compilation of Blue Whale Strandings

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Marine mammal strandings are common occurrences that attract public and scientific interest. Stranding data can provide important information for rarely sighted species, but while regional and national stranding databases do exist in some areas, cross‐database communication and data sharing are limited.
Kristina V. Randrup, Robert L. Brownell Jr., R. Charles Anderson, Emma L. Carroll, Rochelle Constantine, Barbara Galletti Vernazzani, Hannah Hendriks, Anouk D. Ilangakoon, Divya Panicker, Dipani Sutaria, Koen Van Waerebeek, Sarah M. Wilkin, Tonya Wimmer, Trevor A. Branch   +13 more
wiley   +1 more source

Development and Validation of Girth‐, Volume‐, and Mass‐Based Body Condition Indices for Free‐Swimming Dugongs, via Drone Photogrammetry

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Drone photogrammetry provides a minimally invasive morphometric tool to assess growth and energy reserve in marine mammals. Converting drone‐derived measurements (e.g., body width) into body condition indices (BCIs, residuals from expected body girth, volume, or mass) requires prior knowledge of normative body shape. We developed and validated
Chiaki Yamato, Helen L. Sneath, Janet M. Lanyon   +2 more
wiley   +1 more source

A plasma membrane Ca(2+)-ATPase (PMCA) from the liver fluke, Fasciola hepatica

, 2012
Fasciolosis is a parasitic infection by the liver fluke Fasciola hepatica, which costs the global agricultural community over US $2 billion per year. Its prevalence is rising due to factors such as climate change and drug resistance.
Timson, David J., Trudgett, Alan, Moore, Catherine M., Hoey, Elizabeth M.   +3 more
core   +1 more source

Contemporary Growth Curves for Individual Humpback Whales in Eastern Australia Using Aerial Photogrammetry

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Growth curves provide critical biological context for understanding life history, population dynamics, and responses to environmental change, yet our understanding of age–length relationships for humpback whales (Megaptera novaeangliae) remains largely based on measurements collected during commercial whaling operations from the mid‐20th ...
S. H. Stack, T. Fettermann, B. McGovern, S. M. Bengtson Nash   +3 more
wiley   +1 more source

A novel calmodulin-like protein from the liver fluke, Fasciola hepatica

, 2012
An 18.2 kDa protein from the liver fluke, Fasciola hepatica has been identified and characterised. The protein shows strongest sequence similarity to egg antigen proteins from Schistosoma mansoni, Schistosoma japonicum and Clonorchis sinensis.
Russell, Sean L., Glass, Peter, Timson, David J., Trudgett, Alan, McFerran, Neil V., Tsang, Yvonne, Moore, Catherine M., Hoey, Elizabeth M.   +7 more
core   +1 more source

Decreasing Sociality With Body Size in All‐Male Groups of Sperm Whales (Physeter macrocephalus)

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The costs and benefits of group living can influence animal group size and social relationships, and these balance points may shift as animals mature. Young male sperm whales (Physeter macrocephalus) appear to form stable all‐male groups unrelated to direct defense of females or territories, but quantitative data on how sociality changes with ...
Hayao Kobayashi, Kagari Aoki, Masao Amano   +2 more
wiley   +1 more source

Sex Ratio, Pregnancy Status, and Blubber Testosterone Concentrations of Humpback Whales (Megaptera novaeangliae) on Foraging Grounds in the Southwestern Atlantic

Marine Mammal Science, Volume 42, Issue 4, October 2026.
Henry W. Slesser, Joanna L. Kershaw, Amy S. Kennedy, Caroline R. Weir, Stephanie Martin, Emma L. Carroll, C. Scott Baker, Manuela Bassoi, Danielle L. Buss, Martin Collins, Jennifer A. Jackson   +10 more
wiley   +1 more source

When homology fails: lessons from liver-fluke phylogenies

International audienceMisaligned sequences derail evolutionary inference. Datasets from GenBank require verification of positional homology and orientation before alignment and phylogenetic analysis.
Bonel, Nicolás, Alda, Pilar, Alba, Annia, Alda, Maria del Pilar   +3 more
core   +1 more source