Results 71 to 80 of about 16,548 (278)

Early life sensory ability—ventilatory responses of thornback ray embryos (Raja clavata) to predator-type electric fields [PDF]

, 2015
Predator avoidance is fundamental for survival and it can be particularly challenging for prey animals if physical movement away from a predatory threat is restricted. Many sharks and rays begin life within an egg capsule that is attached to the sea bed.
Ballard, Bedore, Bigelow, Bodznick, Clark, Cousseau, Cox, Dulvy, Dulvy, Evans, Foulley, Freitas, Gannon, Giguère, Gill, Herskin, Hoff, Kempster, Kimber, Leonard, Long, Lucifora, Luer, Martin, Moore, Oulton, Peters, Post, Richards, Semeniuk, Semeniuk, Sih, Sisneros, Thomason, Tricas, Venables, Warkentin, Warkentin   +37 more
core   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

The Anatomical Record, Volume 309, Issue 1, Page 5-32, January 2026.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink, Kelly Roberta da Silva, Marco Aurélio Gallo de França, Débora Melo Ferrer de Morais, Matías Soto, Christopher J. Duffin   +5 more
wiley   +1 more source

Avaliação da abordagem do tema chondrichthyes nos livros didáticos de biologia aprovados pelo PNLD 2015

Alexandria, 2021
O livro didático é um material importante para os estudantes da Educação Básica como fonte de consulta e, também, para os professores como suporte pedagógico.
Isis Campos Gonçalves, Benjamin Carvalho Teixeira Pinto, Andréa Espinola de Siqueira   +2 more
doaj   +1 more source

Evaluating Prey Availability for the Rice's Whale (Balaenoptera ricei) Based on Environmental DNA

Ecology and Evolution, Volume 16, Issue 1, January 2026.
To characterize the prey community of the critically endangered Rice's whale, we employed environmental DNA (eDNA) metabarcoding in its core habitat. Our multi‐marker approach detected significantly greater fish biodiversity than concurrent trawl surveys and revealed a higher prevalence of key prey taxa.
Katherine Silliman, Lynsey A. Wilcox Talbot, Mary Applegate, Laura Aichinger Dias, Lance P. Garrison, Mark Grace, Corinne N. Paterson, Luke R. Thompson, Nicole L. Vollmer, Patricia E. Rosel   +9 more
wiley   +1 more source

Tasa de oviposición de la raya marmolada Sympterygia bonapartii (Elasmobranchii, Rajidae) (Müller & Henle, 1841) mantenida en cautiverio [PDF]

, 2009
Se registró la tasa de oviposición de Symperygia bonapartii en cautiverio. En un período de un año una hembra depositó 152 ovicápsulas a una tasa de 0.4 huevos por día y la otra depositó 200 ovicápsulas a una tasa de 0.5 huevos por día.The oviposition ...
Jañez, Julieta A., Sueiro, Maria Cruz
core  

The Seasonal Rhythms of Coastal eDNA: Insights Into Biodiversity and Regional Detection Patterns

Environmental DNA, Volume 8, Issue 1, January–February 2026.
Seasonal variation affects environmental DNA (eDNA) detection, yet its influence on species monitoring remains underexplored. This study examines eDNA detection windows across taxa, primers, and regions, finding that most species have short detection periods (1–2 months) that vary with taxonomy and primer choice. These results underscore the importance
Melissa K. Morrison, Kimberly Howland, Erin K. Grey, Timothy J. Barrett, Claudio DiBacco, Meghan C. McBride, Maelle Sevellec, Anaïs Lacoursière‐Roussel   +7 more
wiley   +1 more source

The marine leech Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), parasitic on the angel shark Squatina spp. and sandtiger shark Carcharias taurus Rafinesque, 1810 (Chondrichthyes: Squatinidae, Carchariidae) in Southern Brazilian waters

Brazilian Journal of Biology
The presence of the marine leech, Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), is reported on the southern coast of Brazil, based on seven lots with 47 specimens, between 71 and 182 mm in total length, collected on the dorsal region ...
J. M. R. Soto
doaj   +1 more source

Spatial variability of Chondrichthyes in the northern Mediterranean

Scientia Marina, 2019
Thanks to the availability of the MEDITS survey data, a standardized picture of the occurrence and abundance of demersal Chondrichthyes in the northern Mediterranean has been obtained.
Maria C. Follesa, Martina F. Marongiu, Walter Zupa, Andrea Bellodi, Alessandro Cau, Rita Cannas, Francesco Colloca, Mirko Djurovic, Igor Isajlovic, Angélique Jadaud, Chiara Manfredi, Antonello Mulas, Panagiota Peristeraki, Cristina Porcu, Sergio Ramirez-Amaro, Francisca Salmerón Jiménez, Fabrizio Serena, Letizia Sion, Ioannis Thasitis, Angelo Cau, Pierluigi Carbonara   +20 more
doaj   +1 more source

eDNA Metabarcoding as a Promising Conservation Tool to Monitor Fish Diversity in Indonesia Marine Protected Areas

Environmental DNA, Volume 8, Issue 1, January–February 2026.
Oxford Nanopore eDNA metabarcoding detected 183 fish species in Karimunjawa National Park, with 87 species (38%) and 25 families (71%) overlapping with visual census, while also detecting nocturnal, pelagic, and migratory taxa missed visually. ABSTRACT Marine Protected Areas (MPAs) play a crucial role in conserving marine biodiversity while providing ...
Ni Kadek Dita Cahyani, Aji Wahyu Anggoro, Rian Prasetia, Yuliana Fitri Syamsuni, Muhammad Danie Al Malik, Eka Maya Kurniasih, Nining Nursalim, Nenik Kholilah, Fauzi Muh, Ambariyanto Ambariyanto, Muhidin Muhidin, Sukmarahaja A. R. Tarigan, Widyastuti Widyastuti   +12 more
wiley   +1 more source

Sharkipedia: a curated open access database of shark and ray life history traits and abundance time-series

Scientific Data, 2022
Measurement(s) Life history traits • Abundance time-series Technology Type(s) literature review Factor Type(s) Species ID • Location • Year Sample Characteristic - Organism Class Chondrichthyes Sample Characteristic - Environment All aquatic environments
Christopher G. Mull, Nathan Pacoureau, Sebastián A. Pardo, Luz Saldaña Ruiz, Emiliano García-Rodríguez, Brittany Finucci, Max Haack, Alastair Harry, Aaron B. Judah, Wade VanderWright, Jamie S. Yin, Holly K. Kindsvater, Nicholas K. Dulvy   +12 more
doaj   +1 more source