Results 11 to 20 of about 93 (71)

Population structure, distribution and abundance patterns of the patagonian smoothhound Mustelus schmitti Springer, 1939 (Chondrichthyes, Elasmobranchii, Triakidae) in the rio de La Plata and inner continental shelf , sw Atlantic ocean (34º30'-39º30'S)

Brazilian Journal of Oceanography, 2007
A total number of 4824 Mustelus schmitti was sampled. Females ranged from 25 to 93 cm in spring and from 28 to 90 cm in summer. Males ranged from 34 to 82 and from 28 to 77 cm, respectively.
Gonzalo Velasco, Laura Paesch
exaly   +3 more sources

Microscopic Analysis of Mustelus schmitti´s Uteri During Reproductive Cycle

Annual Research & Review in Biology, 2015
Aims: It was analysed with light and electron microscopy the different zones of the Mustelus schmitti`suteri along the reproductive cycle. Study Design: Histological routine techniques were used. Place and Duration of Study: Specimens of Mustelus schmitti were collected from the Bahia Blanca estuary, each month, from 2002 to 2006.
exaly   +3 more sources

CALLIOBOTHRIUM SPP. (EUCESTODA: TETRAPHYLLIDEA: ONCHOBOTHRIIDAE) IN MUSTELUS SCHMITTI (CHONDRICHTHYES: CARCHARHINIFORMES) FROM ARGENTINA AND URUGUAY

Journal of Parasitology, 2002
Three species of Calliobothrium inhabit the spiral intestine of Mustelus schmitti in Argentina and Uruguay. Calliobothrium verticillatum australis is redescribed and its taxonomic status modified to species as C. australis. Calliobothrium barbarae n. sp. can be distinguished from all other species of Calliobothrium, which are small bodied, nonlaciniate,
Verónica A, Ivanov, Daniel R, Brooks
exaly   +4 more sources

Distribution patterns and interactions of cestodes in the spiral intestine of the narrownose smooth-hound shark, Mustelus schmitti Springer, 1939 (Chondrichthyes, Carcharhiniformes)

Acta Parasitologica, 2006
AbstractThe distribution patterns and the cestode species interactions within the spiral intestine of 20 specimens of Mustelus schmitti from coastal waters off Mar del Plata, Argentina were studied. Six cestode species were found: Tetraphyllideans Calliobothrium barbarae, C. australis, C.
Ana Alarcos
exaly   +4 more sources

THE GRANULOPOIETIC ORGANS OF THE NARROW NOSE SMOOTH HOUND Mustelus schmitti (CHONDRICHTHYES, TRIAKIDAE). A LIGHT AND ELECTRON MICROSCOPIC STUDY

Revista Chilena De Anatomía, 2002
Los elasmobranquios son modelos naturales espontaneos importantes para el estudio de la hemopoyesis, dado que tienen disecados naturalmente los distintos microambientes inductores. Describimos la microarquitectura y la morfologia celular de las dos estructuras granulopoyeticas principales de Mustelus schmitti (Springer, 1936): los organos epigonal y de
Galíndez, Elena Juana, Aggio, Mario Carlos   +1 more
exaly   +3 more sources

Two thirds of species in a global shark fin trade hub are threatened with extinction: Conservation potential of international trade regulations for coastal sharks

Conservation Letters, Volume 15, Issue 5, September/October 2022., 2022
Abstract One third of chondrichthyan species (sharks, rays, and chimeras) are threatened with extinction, mainly due to unsustainable fishing. Large accessible international markets for meat and luxury products like dried fins can help drive overfishing by encouraging targeted capture or retention of high‐value export species.
Diego Cardeñosa, Stanley K. Shea, Huarong Zhang, Gunter A. Fischer, Colin A. Simpfendorfer, Demian D. Chapman   +5 more
wiley   +1 more source

First recorded case of leucism in the velvet belly lantern shark Etmopterus spinax (Squaliformes: Etmopteridae)

Journal of Applied Ichthyology, Volume 38, Issue 4, Page 455-461, July 2022., 2022
Abstract The capture of a female specimen of the velvet belly lantern shark Etmopterus spinax with abnormal skin coloration is reported. The specimen was captured off northern Spain (Bay of Biscay, North‐eastern Atlantic) in 2021 by bottom trawling. The lack of dermal melanophores combined with a normal retinal pigmentation, lead us to considerate the ...
Juan Carlos Arronte, Ana Antolínez, Rafael Bañón, José Rodríguez‐Gutiérrez, Juan José Ortíz, Juan Manuel Martínez   +5 more
wiley   +1 more source

Responses of aquaculture fish to climate change‐induced extreme temperatures: A review

Journal of the World Aquaculture Society, Volume 53, Issue 2, Page 314-366, April 2022., 2022
Abstract Climate change‐induced extreme temperature events are becoming more intense and frequent. For fish, temperature is the master abiotic factor that controls and limits fish development and physiology at all stages of aquaculture. Major physiological constraints at the individual level underpin changes in fish growth, hemato‐physiology ...
Md Jakiul Islam, Andreas Kunzmann, Matthew James Slater   +2 more
wiley   +1 more source

Tagging, ranging patterns, and behavior of franciscana dolphins (Pontoporia blainvillei) off Argentina and Brazil: Considerations for conservation

Marine Mammal Science, Volume 38, Issue 2, Page 571-605, April 2022., 2022
Abstract The franciscana dolphin, Pontoporia blainvillei, is one of the most threatened cetaceans in the Southwestern Atlantic. Within their limited coastal range off Argentina, Uruguay, and Brazil, franciscanas face human activities, including artisanal gillnet fishing and coastal development.
Randall S. Wells, Marta J. Cremer, Leonardo G. Berninsone, Diego Albareda, Krystan A. Wilkinson, M. Andrew Stamper, Renan L. Paitach, Pablo Bordino   +7 more
wiley   +1 more source

Using BRUVS to describe the fish assemblage and its seasonality in two shallow marine inlets within protected areas of Patagonia, Argentina

Ecología Austral, 2021
Baited Remote Underwater Video Stations (BRUVS) complemented with fishing methods were used to describe the fish assemblage and its seasonal pattern in two marine inlets from Patagonia.
Gastón Trobbiani, Agustin M. De Wysiecki, Nelson Bovcon, Alejo J. Irigoyen   +3 more
doaj   +1 more source