Results 21 to 30 of about 1,468 (177)

Physiological responses to prolonged aquatic hypoxia in the Queensland lungfish Neoceratodus forsteri [PDF]

Respiratory Physiology & Neurobiology, 2002
The effects of moderate and severe hypoxia on air breathing frequency and respiratory properties of the blood of the Queensland (Australian) lungfish Neoceratodus forsteri were measured in fish exposed to these conditions for 14-22 days at 20 degrees C.
Kind, Peter K., Grigg, Gordon C., Booth, David T.   +2 more
openaire   +6 more sources

A Metapopulation Model to Assess Water Management Impacts on the Threatened Australian Lungfish, Neoceratodus forsteri

Fishes
The Australian lungfish, Neoceratodus forsteri, is one of the world’s oldest vertebrate lineages, with a slow life-history and threatened status, requiring immediate conservation efforts.
Charles R. Todd, Andrew J. McDougall, Scott M. C. Raymond, Robin Hale, Timothy R. Brown, John D. Koehn, Henry F. Wootton, Steven G. Brooks, Adrian M. Kitchingman, Tom Espinoza, Benjamin G. Fanson, Peter K. Kind, Sharon M. Marshall, David T. Roberts   +13 more
doaj   +2 more sources

Studies on the queensland lungfish, neoceratodus forsteri (Krefft) ii. thermal acclimation [PDF]

, 1964
Six juvenile Neoceratodus of convenient size for respirometry (27–51 g) were available for study. Fish of this size are very rarely taken and the opportunity was used to examine the ability of Neoceratodus to undergo metabolic acclimation. Metabolic rate-temperature curves were constructed for fish with cold (18°C) and warm (25°C) thermal histories ...
Grigg, Gordon C., Grigg, G. C.
openaire   +5 more sources

Cephalic muscle development in the Australian lungfish,Neoceratodus forsteri

Journal of Morphology, 2017
AbstractLungfishes are the extant sister group of tetrapods. As such, they are important for the study of evolutionary processes involved in the water to land transition of vertebrates. The evolution of a true neck, that is, the complete separation of the pectoral girdle from the cranium, is one of the most intriguing morphological transitions known ...
Janine M. Ziermann, Alice M. Clement, Rolf Ericsson, Lennart Olsson   +3 more
openaire   +3 more sources

Reconstructing the major skull myology of the giant stem-amphibian Mastodonsaurus: A case study for early tetrapods. [PDF]

J Anat
We reconstruct the major cranial musculature of the giant stem amphibian Mastodonsaurus giganteus, revealing a differentiated jaw‐adductor system, a probable sesamoid pulley, and previously unrecognised muscles. This EPB‐based case study establishes an anatomical framework for modelling feeding in early tetrapods and supports interpretations of ...
Schwarz D, Lautenschlager S, Witzmann F, Moreno R, Mujal E, Schoch RR.   +5 more
europepmc   +2 more sources

Scale structure in the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi).

Journal of morphology, 2015
Scales of the Australian lungfish, Neoceratodus forsteri, are secreted within the dermis by a capsule of scleroblasts, and enclosed in a pouch made of collagen fibers, in contact with the epidermis over the posterior third of the scale. Each scale grows from a focus, which represents the first formed part of the scale.
Kemp, Anne, Heaslop, Meg, Carr, Andrew
openaire   +6 more sources

Anatomy and cytology of the thymus in juvenile Australian lungfish, Neoceratodus forsteri

Journal of Anatomy, 2007
AbstractThe anatomy, histology and ultrastructure of the thymus of a dipnoan, the Australian lungfish, Neoceratodus forsteri, was studied by light and transmission electron microscopy. The thymic tissue showed clear demarcation into a cortex and medulla with ample vascularization. Large cells including foamy and giant multinucleated cells with periodic
Mohammad, M.G., Chilmonczyk, Stefan, Birch, D., Aladaileh, S., Raftos, D., Joss, J.   +5 more
openaire   +5 more sources

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates. [PDF]

Biol Rev Camb Philos Soc
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 ...
Schwarz D, Mielke M, Handschuh S, Herrel A, Lemell P, Cunha LD, Konow N.   +6 more
europepmc   +2 more sources

Nonlethal, Epigenetic Age Estimation in a Freshwater Sportfish, Florida Bass (<i>Micropterus salmoides</i>). [PDF]

Ecol Evol
The conservation and management of black bass fisheries rely on the generation of age data to estimate population dynamics, and the development of an accurate, nonlethal age estimation method would expand opportunities for collecting age‐related information in cases where sacrificing fish is either not an option or undesirable.
Weber DN, Lindelien S, Dutterer AC, Dotson JR, Moran J, Fields AT, Patterson WF, Portnoy DS.   +7 more
europepmc   +2 more sources

Lungfish and the Long Defeat

Diversity, 2023
Australia has an excellent fossil record of lungfish that begins in the Devonian and includes many species in Tertiary and Quaternary deposits. The extant Australian lungfish, Neoceratodus forsteri, occurs in Pliocene deposits, but is now restricted to a
Anne Kemp
doaj   +1 more source