Results 1 to 10 of about 170 (110)

Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae) [PDF]

PLoS ONE, 2018
The dalatiid genus Isistius Gill (1864) has three valid species currently recognized in the literature: Isistius brasiliensis Quoy & Gaimard (1824), I. plutodus Garrick & Springer (1964), and I. labialis Meng, Zhu & Li (1985). The most common species, I.
Flavia F Petean, Marcelo R DE CARVALHO
exaly   +5 more sources

Moonless night sky increases Isistius species (cookiecutter shark) and live human contact [PDF]

PLoS ONE
The nocturnal feeding behavior and zoogeographical habitat of cookiecutter sharks Isistius brasiliensis and Isistius plutodus (Isistius spp.) greatly reduces interaction of this species with live humans. Attacks on live humans are exceedingly rare with 7
Steven Minaglia
exaly   +5 more sources

Photophore Distribution and Enzymatic Diversity Within the Photogenic Integument of the Cookie-Cutter Shark Isistius brasiliensis (Chondrichthyes: Dalatiidae) [PDF]

Frontiers in Marine Science, 2021
The cookie-cutter shark Isistius brasiliensis (Squaliformes: Dalatiidae) is a deep-sea species that emits a blue luminescence ventrally, except at the level of a black band located beneath the jaw.
Patrick Flammang, Laurent Duchatelet, Jérôme Delroisse   +2 more
exaly   +6 more sources

Morphological Variability and Function of Labial Cartilages in Sharks (Chondrichthyes, Elasmobranchii) [PDF]

Biology, 2023
(1) Background: Labial cartilages (LCs), as their name suggests, lie in the folds of the connective tissue, the lips, framing the gape of elasmobranch chondrichthyans. As such, these cartilages lie laterally to the jaws and marginal teeth.
Claudia Klimpfinger, Jürgen Kriwet
doaj   +2 more sources

Defining Wound Healing Progression in Cetacean Skin: Characteristics of Full-Thickness Wound Healing in Fraser’s Dolphins (Lagenodelphis hosei) [PDF]

Animals, 2022
Cetaceans are tight-skinned mammals that exhibit an extraordinary capacity to heal deep soft tissue injuries. However, essential information of large full-thickness wound healing in cetaceans is still lacking.
Chen-Yi Su, Michael W. Hughes, Tzu-Yu Liu, Cheng-Ming Chuong, Hao-Ven Wang, Wei-Cheng Yang   +5 more
doaj   +2 more sources

Integrating multiple chemical tracers to elucidate the diet and habitat of Cookiecutter Sharks [PDF]

Scientific Reports, 2021
The Cookiecutter shark (Isistius brasiliensis) is an ectoparasitic, mesopelagic shark that is known for removing plugs of tissue from larger prey, including teleosts, chondrichthyans, cephalopods, and marine mammals.
Aaron B. Carlisle, Elizabeth Andruszkiewicz Allan, Sora L. Kim, Lauren Meyer, Jesse Port, Stephen Scherrer, John O’Sullivan   +6 more
doaj   +2 more sources

Unravelling Taxonomic Complexity in Elusive Cetaceans: Mitogenome Insights into Evolutionary History and Cryptic Diversity of Bryde's Whales. [PDF]

Ecol Evol
The Bryde's whale is one of the least understood baleen whale species globally, limiting accuracy of regional and global conservation assessment. This study shows the occurrence of unique genetic lineages and evolutionary histories among Bryde's whale populations.
Paynee D, Bloomer P, Penry G, Elwen S, Natoli A, Dhanalakshmy V, Cardoso T, Vermeulen E.   +7 more
europepmc   +2 more sources

Genomic Insights Into the Evolutionary History of Berardius Beaked Whales: Speciation Driven by Resource Specialization, Gigantism and Thermal Barriers? [PDF]

Mol Ecol
ABSTRACT Understanding the diversity of our oceans is fundamental now more than ever as climate change and human activities put increasing pressure on marine species and ecosystems. Beaked whales (family Ziphiidae) are among the most poorly understood marine mammals, in part due to their affinity to offshore underwater canyons and prolonged diving ...
McCarthy ML, Westbury MV, Springer MS, Gatesy J, Olsen MT, Morin PA.   +5 more
europepmc   +2 more sources

Evolutionary trajectories of tooth histology patterns in modern sharks (Chondrichthyes, Elasmobranchii). [PDF]

J Anat, 2020
Using micro‐computed tomography techniques, we examined the tooth mineralization in modern shark clades (Elasmobranchii, Chondrichthyes). The inclusion of fossil taxa and computing ancestral states allowed us to trace back the development of different mineralization patterns in deep time.
Jambura PL, Türtscher J, Kindlimann R, Metscher B, Pfaff C, Stumpf S, Weber GW, Kriwet J.   +7 more
europepmc   +2 more sources

Female, juvenile, and calf sperm whale Physeter macrocephalus (Linnaeus 1758) records from Ireland. [PDF]

Ecol Evol
Ireland has historically been viewed as a region where only male sperm whales were present. There have however been historical records of female and calf sperm whales from 1910 and 1916. More recently, there has been a trend of female strandings in Ireland since 1995 where 7 of the 10 events have taken place since 2013 indicating a shift in the sperm ...
O'Callaghan SA, Griffin B, Levesque S, Gammell M, O'Brien J.   +4 more
europepmc   +2 more sources