Results 31 to 40 of about 1,231 (195)

Feeding ecology of elasmobranch species in southeastern Brazil

open access: yesNeotropical Ichthyology, 2017
The feeding ecology of five elasmobranch species was studied on the southern coast of Rio de Janeiro, southwestern Atlantic Ocean. The specimens were caught with a trawl or bottom longline between January 2006 and August 2007.
Alessandra F. Viana   +2 more
doaj   +1 more source

Individual Variation in Philopatry Is Unrelated to Activity and Space Use in the Undulate Skate <i>Raja undulata</i>. [PDF]

open access: yesEcol Evol
Consistent individual variation in fine‐scale movement traits is unrelated to movements occurring at larger spatio‐temporal scales in undulate skates (Raja undulata). ABSTRACT Individual variation in behavior is widespread in animals. Movement traits, which describe how individuals interact with their environment, can vary across a range of spatial and
Hillinger A   +5 more
europepmc   +2 more sources

Rajidae

open access: yes, 2009
Family Rajidae Dipturus trachydermus (IUCN: VU, Biodiversitas: Not included) Anisakis sp. Contracaecum sp. Gorgorhynchus sp. Mixonybelinia beveridgei Otodistomum veliporum Raphidascaris sp.
Muniz-Pereira, Luís C.   +2 more
openaire   +2 more sources

Development and regeneration of the crushing dentition in skates (Rajidae)

open access: yesDevelopmental Biology, 2020
Sharks and rays (elasmobranchs) have the remarkable capacity to continuously regenerate their teeth. The polyphyodont system is considered the ancestral condition of the gnathostome dentition. Despite this shared regenerative ability, sharks and rays exhibit dramatic interspecific variation in their tooth morphology.
Rasch, L.J.   +5 more
openaire   +4 more sources

Diet of the rasptail skate, Rostroraja velezi (Rajiformes: Rajidae), off Piura, Peru

open access: yesCiencias Marinas, 2021
Batoids are among the least studied group of vertebrates and one of the most vulnerable to fishing. The rasptail skate, Rostroraja velezi, is a bycatch species in northern Peru for which there are no studies on its diet.
Pamela Molina-Salgado   +2 more
doaj   +1 more source

Rajidae

open access: yes, 2013
Published as part of Straube, Nicolas, White, William T., Ho, Hsuan-Ching, Rochel, Elisabeth, Corrigan, Shannon, Li, Chenhong & Naylor, Gavin J. P., 2013, A DNA sequence-based identification checklist for Taiwanese chondrichthyans, pp.
Straube, Nicolas   +6 more
openaire   +2 more sources

Acanthobothrium minus n. sp. (Tetraphyllidea : Onchobotriidae) parasite de Raja asterias (Elasmobranchii : Rajidae) en Méditerranée

open access: yesParasite, 2009
Parmi les Cestodes Tetraphyllidea parasites de la valvule spirale de Raja asterias Delaroche pêchées sur les côtes de l’Algérie, nous avons récolté un Onchobothriidae du genre Acanthobothrium différent des Acanthobothrium signalés chez les Rajidae de la ...
Tazerouti F.   +2 more
doaj   +1 more source

Contribuição ao conhecimento da fauna de peixes do litoral norte do estado de São Paulo A contribution to the acquirement of the fish fauna from the northern littoral of state of São Paulo

open access: yesBrazilian Journal of Oceanography, 1983
Na execução de um programa de levantamento das faunas demersal e epibentônica da plataforma do litoral norte do Estado de São Paulo, foram tomadas, em um período de dois anos, 28 amostras da fauna de fundo, utilizando-se redes tipo ottertrawl abrangendo ...
Edmundo Ferraz Nonato   +2 more
doaj   +1 more source

Some reproductive aspects of cartilaginous fish Raja clavataL., 1758(Elasmobranchii: Rajidae) from Syrian coast

open access: yesالمجلة العراقية للاستزراع المائي, 2021
This study was performed on Thornback ray (Raja clavata L., 1758) through the period January 2013 - October 2014. It aimed to determine the reproductive cycle , fecundity and to determine median disc width at maturity (DW50 ) of this species.
Adib Saad   +3 more
doaj   +1 more source

Rajidae

open access: yes, 2018
Published as part of Biscoito, Manuel, Ribeiro, Cláudia & Freitas, Mafalda, 2018, Annotated checklist of the fishes of the archipelago of Madeira (NE Atlantic): I-Chondrichthyes, pp. 459-494 in Zootaxa 4429 (3) on pages 476-480, DOI: 10.11646/zootaxa.4429.3.2, http://zenodo.org/record ...
Biscoito, Manuel   +2 more
openaire   +2 more sources

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