Morphological characters of the thickbody skate Amblyraja frerichsi (Krefft 1968) (Rajiformes: Rajidae), with notes on its biology.
Carlos Bustamante,Carlos Bustamante,Julio Lamilla,Francisco Concha,David A. Ebert,David A. Ebert,David A. Ebert,Michael B. Bennett +7 more
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Detailed descriptions of morphological features, morphometrics, neurocranium anatomy, clasper structure and egg case descriptions are provided for the thickbody skate Amblyraja frerichsi; a rare, deep-water species from Chile, Argentina and Falkland Islands.Abstract:
Detailed descriptions of morphological features, morphometrics, neurocranium anatomy, clasper structure and egg case descriptions are provided for the thickbody skate Amblyraja frerichsi; a rare, deep-water species from Chile, Argentina and Falkland Islands. The species diagnosis is complemented from new observations and aspects such as colour, size and distribution are described. Geographic and bathymetric distributional ranges are discussed as relevant features of this taxons biology. Additionally, the conservation status is assessed including bycatch records from Chilean fisheries.read more
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Journal ArticleDOI
Not all fish are equal: functional biodiversity of cartilaginous fishes (Elasmobranchii and Holocephali) in Chile
TL;DR: The presence of 93 species was confirmed, although 30 species were encountered rarely, through validated catch records and sightings made in artisanal and commercial fisheries and on specific research cruises.
Deep-sea cartilaginous fishes of the Southeastern Pacific Ocean
TL;DR: The Catalogue of the Sharks, Batoid Fishes, and Chimaeras of the southeastern Pacific Ocean, encompassing FAO Fishing Area 87, is presented in this article.
Journal ArticleDOI
Ontogenetic development of the otic region in the new model organism, Leucoraja erinacea (Chondrichthyes; Rajidae)
TL;DR: Pre-hatching to adult developmental stages of the Little Skate, Leucoraja erinacea, are investigated using micro-computed tomography scanning in conjunction with staining procedures designed to improve visualisation of soft tissues.
DissertationDOI
Biology, Taxonomy and Distribution of south-east Pacific Cartilaginous Fishes
TL;DR: This thesis aims to demonstrate the efforts towards in-situ applicability of EMMARM, as to provide real-time information about the concrete mechanical properties of E-modulus and its applications in the rapidly changing environment.
Journal ArticleDOI
Description and quantitative analysis of the dentition of the southern thorny skate Amblyraja doellojuradoi.
G. Delpiani,G. Delpiani,M. C. Spath,M. C. Spath,M. Y. Deli Antoni,M. Y. Deli Antoni,M. Delpiani,M. Delpiani +7 more
TL;DR: This study provides a description of the teeth of A. doellojuradoi, supplying a valuable tool for identification of species and the establishment of the main variations observed in the dentition improves the understanding of the species' biology.
References
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Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries. Proceedings
TL;DR: This report owes its genesis to the foresight and enthusiam of Dr. Kazuhiro Mizue, who contacted me in 1983 with his visionary ideas on cooperative programs.
Journal ArticleDOI
Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (chondrichthyes : rajidae)
TL;DR: Skates (Rajidae) are unique among chondrichthyans for their high species diversity and morphological conservatism and it is likely that ancestral rajids made multiple radiations into the deep sea and developed flexible snouts for grubbing in soft substrates and enlarged nasal rosettes for increased chemosensistivty in regions with little light.
Journal ArticleDOI
Movements and activity of male and female dogfish in a tidal sea lough: alternative behavioural strategies and apparent sexual segregation
TL;DR: It is suggested that this apparent spatial segregation by sex in the lough could be driven by the need for females to conserve energy by limiting multiple matings during a time when mating coincides with a peak in egg production and laying.
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