Results 31 to 40 of about 405 (141)

Histochemical indications for a chemically complex signal produced by the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps). [PDF]

Anat Rec (Hoboken)
Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Keenan TF, McLellan WA, Rommel SA, Costidis AM, Harms CA, Thewissen JGM, Rehorek SJ, Rotstein DS, Gay MD, Taylor AR, Koopman HN, Wang Y, Kamel S, Pabst DA.   +13 more
europepmc   +2 more sources

Environmental DNA (eDNA) Technology in Biodiversity and Ecosystem Health Research: Advances and Prospects. [PDF]

Ecol Evol
This review synthesizes over 15 years of advancements in eDNA technology by systematizing standardized guidelines for sampling, extraction, and bioinformatics, thereby enhancing the reproducibility of eDNA‐based research. It highlights eDNA's transformative role in noninvasively detecting rare, endangered, and invasive species, as well as its value in ...
Wu S, Wang Y, Qin H, Zhang Z, Liu S, Ruan Y, Chen G, Yuan X, Zhang H.   +8 more
europepmc   +2 more sources

Audiograms and click spectra of seven novel and seldom-tested odontocetes

Frontiers in Marine Science, 2022
The use of auditory evoked potentials has been promoted as a means by which to collect audiometric information from odontocete cetaceans that are rarely encountered in stranding situations.
Dorian S. Houser, Lauren Noble, Erin Fougeres, Jason Mulsow, James J. Finneran   +4 more
doaj   +1 more source

Three-Dimensional Vascular Structure of Caudal and Dorsal Fins of a Dwarf Sperm Whale. [PDF]

Ecol Evol
This study examined the vascular architecture in the caudal and dorsal fins of a dwarf sperm whale through X‐ray computed tomography and gross dissection. The analysis provided the first confirmation of two distinct vascular systems in the fins of the family Kogiidae, indicating their presence across Odontoceti species.
Okamura T, Smith AR, Mikami T, Nishimura F, Shirakata C, Yasui K, Asakawa S, Yoda K.   +7 more
europepmc   +2 more sources

Targeted surveillance detected novel beaked whale circovirus in ten new host cetacean species across the Pacific basin

Frontiers in Marine Science, 2023
The first cetacean circovirus, beaked whale circovirus (BWCV), was recently reported in a Longman’s beaked whale (Indopacetus pacificus) stranded in Hawai‘i and represents an emergent disease with unknown population impacts.
Cody W. Clifton, Cody W. Clifton, Ilse Silva-Krott, Michael G. Marsik, Kristi L. West, Kristi L. West   +5 more
doaj   +1 more source

Seas the DNA? Limited detection of cetaceans by low‐volume environmental DNA transect surveys

Environmental DNA, Volume 5, Issue 6, Page 1641-1651, November 2023., 2023
Low‐volume environmental DNA combined with visual and acoustic methods were used to determine presence of cetaceans within northern BC. Limited eDNA success emphasizes the need for species‐specific optimizations. Abstract Environmental DNA (eDNA) has begun to show promise as a robust and reproducible tool for monitoring cetaceans in coastal and ...
Chloe V. Robinson, Amy Migneault, Karina Dracott, Robin D. Glover   +3 more
wiley   +1 more source

Protected species considerations for ocean planning: A case study for offshore wind energy development in the U.S. Gulf of Mexico

Marine and Coastal Fisheries, Volume 15, Issue 3, June 2023., 2023
Abstract Objective Ocean planning provides opportunities for managers to evaluate tradeoffs among environmental, social, economic, cultural, and management considerations in the development of place‐based activities. Early integration of mobile protected species considerations into ocean planning reduces the likelihood of future resource conflict ...
Nicholas A. Farmer, Lance P. Garrison, Jenny A. Litz, Joel G. Ortega‐Ortiz, Gina Rappucci, Paul M. Richards, Jessica R. Powell, Dana M. Bethea, Jonathan A. Jossart, Alyssa L. Randall, Mariana E. Steen, Tershara N. Matthews, James A. Morris Jr   +12 more
wiley   +1 more source

Pathological Findings in Cetaceans Sporadically Stranded Along the Chilean Coast

Frontiers in Marine Science, 2020
Chile has one of the largest coastlines in the world with at least 50% of the world cetacean species occurring within its jurisdictional waters. However, little is known regarding the health status and main causes of death in cetaceans off continental ...
Mario Alvarado-Rybak, Mario Alvarado-Rybak, Frederick Toro, Paulette Abarca, Enrique Paredes, Sonia Español-Jiménez, Mauricio Seguel, Mauricio Seguel   +7 more
doaj   +1 more source

Convergent evolution in toothed whale cochleae

BMC Evolutionary Biology, 2019
Background Odontocetes (toothed whales) are the most species-rich marine mammal lineage. The catalyst for their evolutionary success is echolocation - a form of biological sonar that uses high-frequency sound, produced in the forehead and ultimately ...
Travis Park, Bastien Mennecart, Loïc Costeur, Camille Grohé, Natalie Cooper   +4 more
doaj   +1 more source

Kogia sima Owen 1866

, 2005
Kogia sima Owen 1866 Kogia sima Owen 1866, Trans. Zool. Soc. Lond., 6 (1): 30. Type Locality: India, Andhra Pradesh (= Madras Presidency), "taken at Waltair". Vernacular Names: Dwarf Sperm Whale. Distribution: Worldwide: warm-temperate to tropical waters, occasionally strands in cold-temperate areas. Conservation: CITES – Appendix II; IUCN – Lower Risk
Wilson, Don E., Reeder, DeeAnn
openaire   +2 more sources