Results 71 to 80 of about 94,183 (300)

Acoustic discrimination in the grey bamboo shark Chiloscyllium griseum

Scientific Reports, 2022
Cognitive abilities of sharks are well developed and comparable to teleosts and other vertebrates. Most studies exploring elasmobranch cognitive abilities have used visual stimuli, assessing a wide range of discrimination tasks, memory retention and ...
Tamar Poppelier, Jana Bonsberger, Boris Woody Berkhout, Reneé Pollmanns, Vera Schluessel   +4 more
doaj   +1 more source

Estimates of numbers of White sharks (Carcharodon carcharias) in Eastern and Southern South Africa : a post-moratorium assessment [PDF]

, 2004
A moratorium was placed on fishing for white sharks (Carcharodon carcharias) in South Africa in 1991 prior to knowing the population status of this species.
Tress, Mary Elizabeth
core  

Reconstructing discards profiles of unreported catches [PDF]

, 2018
In Portugal it has been estimated that unreported catches represent one third of total catches. Herein, information on landings and total unreported catches (discards) by commercial métier were disaggregated into high taxonomic detail using published ...
Almeida, Alverson, Alverson, Baldaque da Silva, Batista, Bellido, Borges, Borges, Borges, Brandão, Catchpole, Cho, Clucas, Coll, Costa, Erzini, Erzini, Francisco Leitão, García-Rodriguez, Gaspar, Gonçalves, Gonçalves, Hall, Harris, Hill, Hill, Hollingworth, Hongskul, Kaiser, Karim, Karim Erzini, Kelleher, Kennelly, Leitão, Leitão, Leitão, Leitão, Martins, Oliver, Pauly, Pauly, Piroddi, Rochet, Saila, Santos, Stergiou, Stevens, Vânia Baptista, Watson, Watson, Yamamura, Zeller, Zeller, Zhou   +53 more
core   +3 more sources

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Progress report for SRDCP on the Atlantic-wide study on the age and growth of shortfin mako shark [PDF]

, 2017
The ICCAT Shark Research and Data Collection Program (SRDCP) aims to develop and coordinate science and science-related activities needed to support provision of sound scientific advice for the conservation and management of pelagic sharks in the ...
Carlson, John, Coelho, Rui, Domingo, Andrés, Mas, Federico, Mathers, Alyssa, Natanson, Lisa J., Rosa, Daniela   +6 more
core  

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Age validation, growth, mortality, and demographic modeling of spotted gully shark (Triakis megalopterus) from the southeast coast of South Africa [PDF]

, 2011
This study documents validation of vertebral band-pair formation in spotted gully shark (Triakis megalopterus) with the use of fluorochrome injection and tagging of captive and wild sharks over a 21-year period.
Booth, Anthony J., Foulis, Alan J., Smale, Malcolm J.   +2 more
core   +1 more source

Evaluando los niveles tróficos de dos tiburones oceánicos del Océano Pacífico suroriental [PDF]

, 2016
Indexación: Web of ScienceStable isotope analyses for shortfin mako (Isurus oxyrinchus) and blue sharks (Prionace glauca) were conducted to assess their trophic position in two periods of time (before 1980 and after 2000) in the Southeastern Pacific ...
Barria, P, Cornejo, A, Klarian, SA, Melendez, R, Sallaberry-Pincheira, P   +4 more
core   +1 more source

Whole tissue imaging of cellular boundaries at sub‐micron resolutions for deep learning cell segmentation: Applications in the analysis of epithelial bending of ectoderm

Developmental Dynamics, EarlyView.
Abstract Background To understand cellular morphology, biologists have relied on traditional optical microscopy of tissues combined with tissue clearing protocols to image structures deep within tissues. Unfortunately, these protocols often struggle to retain cell boundary markers, especially at high enough resolutions necessary for precise cell ...
Sam C. P. Norris, Jimmy K. Hu, Neil H. Shubin   +2 more
wiley   +1 more source

Capture, transport and husbandry of Naucrates ductor

Frontiers in Marine Science, 2014
This is a report on the capture, transport, and husbandry of Naucrates ductor, also known as pilot fish. Approximately 100 individuals were collected by Flying Sharks in the sequence of an order from multiple public aquaria. Because there is vely limited
Francisco De Vaissier Ferro Mauricio, Francisco De Vaissier Ferro Mauricio   +1 more
doaj   +1 more source