Results 31 to 40 of about 1,528 (194)

El sistema reproductor femenino de Zearaja chilensis (Guichenot, 1848) (Chondrichthyes, Rajidae): Gametogénesis y validación microscópica de los criterios de madurez [PDF]

open access: yes, 2015
Los condrictios son extremadamente susceptibles a la explotación pesquera debido, entre otras cosas, a sus adaptaciones reproductivas. Los conocimientos básicos de sus parámetros reproductivos son esenciales, ya sea desde el punto de vista ecológico como
Di Giacomo, Edgardo Ernesto   +2 more
core   +1 more source

Trypanorhynch Assemblages Indicate Ecological and Phylogenetical Attributes of Their Elasmobranch Final Hosts [PDF]

open access: yes, 2017
This study explores non-metric multidimensional scaling (nMDS) as a tool for investigating parasites as indicators of the elasmobranch biology. An attractive feature of nMDS is its ability to allow assemblage-level parasite data to be simultaneously ...
Palm, Harry W.   +2 more
core   +1 more source

Diving behaviour of the critically endangered tope shark Galeorhinus galeus in the Natural Reserve of Bahia San Blas, northern Patagonia [PDF]

open access: yes, 2014
Background:Tope sharks (Galeorhinus galeus) aggregate in large numbers during spring and summer in closedgulfs and bays in northern Patagonia; these locations are considered the main nursery areas for the species.However, little is known about the ...
Cuevas, Juan Martín   +2 more
core   +2 more sources

Triakidae

open access: yes, 2015
Published as part of Alves, Philippe V., Vieira, Fabiano M., Santos, Cláudia P., Scholz, Tomáš & Luque, José L., 2015, A Checklist of the Aspidogastrea (Platyhelminthes: Trematoda) of the World, pp.
Alves, Philippe V.   +4 more
openaire   +1 more source

Triakidae

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

Using Local Ecological Knowledge of Fishers to Reconstruct Abundance Trends of Elasmobranch Populations in the Strait of Sicily

open access: yesFrontiers in Marine Science, 2020
Fishers “local ecological knowledge” (LEK) can be used to reconstruct long-term trends of species that are at very low biomass due to overfishing. In this study, we used historical memories of Sicilian fishers to understand their perception of change in ...
Francesco Colloca   +4 more
doaj   +1 more source

New record of the Critically Endangered striped smooth-hound, Mustelus fasciatus (Garman, 1913) (Chondrichthyes, Triakidae), in the Southwest Atlantic [PDF]

open access: yesCheck List, 2018
We report the southernmost known occurrence in the Atlantic Ocean of the striped smooth-hound, Mustelus fasciatus (Garman, 1913). The shark, a female measuring 106 cm TL, was fished in warm coastal waters, with a salinity of 33,189 PSU, of central ...
Juan M. Cuevas   +2 more
doaj   +3 more sources

Foliculogénesis Ovárica en la Raya Marmorada, Sympterygia bonapartii (Müller & Henle, 1841) (Chondrichthyes, Rajidae) [PDF]

open access: yes, 2011
Los Condrictios se han convertido en un recurso económico importante en las últimas décadas, siendo Argentina uno de los países que más explota tiburones y rayas, incluso a niveles que exceden los límites de varias especies.
Díaz Andrade, María Constanza   +3 more
core   +1 more source

Triakidae

open access: yes, 2014
Triakidae * Gogolia filewoodi Compagno, 1973 —Sailback houndshark STATUS AT MADANG. Originally described from Madang by Compagno (1973: 394, figs. 1–7); see Compagno & Niem (1998f: 1302). AMS, CAS and KFRS material. DISTRIBUTION AND HABITAT. Endemic to Madang District, 73 m. Marine.
Fricke, Ronald   +8 more
openaire   +1 more source

Triakidae

open access: yes, 2009
Published as part of Muniz-Pereira, Luís C., Vieira, Fabiano M. & Luque, José L., 2009, Checklist of helminth parasites of threatened vertebrate species from Brazil, pp.
Muniz-Pereira, Luís C.   +2 more
openaire   +1 more source

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