scholarly journals First record of a Basking Shark Cetorhinus maximus (Gunnerus, 1765) in the Brazilian Atlantic

1973 ◽  
Vol 22 (0) ◽  
pp. 01-10 ◽  
Author(s):  
Victor Sadowsky
Keyword(s):  
First Record ◽  
Gill Rakers ◽  
B Values ◽  
Juvenile Female ◽  
Functional Series ◽  
Basking Shark ◽  
Cetorhinus Maximus

The capture on November 19, 1970, of a juvenile female of the Basking Shark Cetorhinus maximus (Gunnerus, 1765), 438 cm long, is the first record of this species in the Brazilian Atlantic, at about 24º00' to 24º10' Lat. S, and 45º35' to 45º15' Long- W. The teeth are mostly in three, sometimes two or four, functional series. Vertebral numbers and characteristics: Precaudal - 53; Caudal - 56; Total - 109; Monospondylous - 37; A-values - 167; B-values - 82 (sensu Springer & Garrick, 1964). The gill rakers are well developed and brilliant black.

First record of basking shark ( Cetorhinus maximus) in Mexico?

2008 ◽  
Vol 1 ◽  
Author(s):  
J. Sandoval-Castillo ◽  
J. Ramirez-Gonzalez ◽  
C. Villavicencio-Garayzar
Keyword(s):  
First Record ◽  
Basking Shark ◽  
Cetorhinus Maximus

The First Report of Disease in a Basking Shark (Cetorhinus maximus)

2010 ◽  
Vol 143 (4) ◽  
pp. 284-288 ◽  
Author(s):  
M.P. Dagleish ◽  
J.L. Baily ◽  
G. Foster ◽  
R.J. Reid ◽  
J. Barley
Keyword(s):  
First Report ◽  
Basking Shark ◽  
Cetorhinus Maximus

scholarly journals Serendipitous re‐sighting of a basking shark Cetorhinus maximus reveals inter‐annual connectivity between American and European coastal hotspots

2019 ◽  
Vol 95 (6) ◽  
pp. 1530-1534
Author(s):  
Emmett M. Johnston ◽  
Paul A. Mayo ◽  
Paul J. Mensink ◽  
Eric Savetsky ◽  
Jonathan D. R. Houghton
Keyword(s):  
Basking Shark ◽  
Cetorhinus Maximus

scholarly journals Assessing the importance of Isle of Man waters for the basking shark Cetorhinus maximus

2020 ◽  
Vol 41 ◽  
pp. 209-223
Author(s):  
HR Dolton ◽  
FR Gell ◽  
J Hall ◽  
G Hall ◽  
LA Hawkes ◽  
...  
Keyword(s):  
Satellite Tracking ◽  
Irish Sea ◽  
Location Data ◽  
Isle Of Man ◽  
Straight Line ◽  
Straight Line Distance ◽  
The Irish Sea ◽  
Satellite Tagging ◽  
Basking Shark ◽  
Cetorhinus Maximus

Satellite tracking of endangered or threatened animals can facilitate informed conservation by revealing priority areas for their protection. Basking sharks Cetorhinus maximus (n = 11) were tagged during the summers of 2013, 2015, 2016 and 2017 in the Isle of Man (IoM; median tracking duration 378 d, range: 89-804 d; median minimum straight-line distance travelled 541 km, range: 170-10406 km). Tracking revealed 3 movement patterns: (1) coastal movements within IoM and Irish waters, (2) summer northward movements to Scotland and (3) international movements to Morocco and Norway. One tagged shark was bycaught and released alive in the Celtic Sea. Basking sharks displayed inter-annual site fidelity to the Irish Sea (n = 3), a Marine Nature Reserve (MNR) in IoM waters (n = 1), and Moroccan waters (n = 1). Core distribution areas (50% kernel density estimation) of 5 satellite tracked sharks in IoM waters were compared with 3902 public sightings between 2005 and 2017, highlighting west and south coast hotspots. Location data gathered from satellite tagging broadly correspond to the current boundaries of MNRs in IoM waters. However, minor modifications of some MNR boundaries would incorporate ~20% more satellite tracking location data from this study, and protective measures for basking sharks in IoM waters could further aid conservation of the species at local, regional and international scales. We also show the first documented movement of a basking shark from the British Isles to Norway, and the longest ever track for a tagged basking shark (2 yr and 2 mo, 804 d).

Gill rakers of basking sharks (Lamniformes: Cetorhinidae) from the Tertiary of Sakhalin Island, Russia

2014 ◽  
Vol 23 (2) ◽  
pp. 269-275
Author(s):  
M.V. Nazarkin
Keyword(s):  
Sakhalin Island ◽  
Taxonomic Identification ◽  
Gill Rakers ◽  
Additional Material ◽  
Upper Miocene ◽  
Upper Oligocene ◽  
Fossil Genus ◽  
Basking Shark

Isolated gill rakers of basking sharks (Lamniformes: Cetorhinidae) were collected from the upper Oligocene Holmsk Formation and Middle-Upper Miocene Kurasi Formation of the Sakhalin Island. This is the second finding of fossil basking shark remains in Russia. Fossil gill rakers are similar to those in recent representatives of the genus Cetorhinus, but differ from the latter by wider and shorter medial processes and higher bases. These features are more typical for basking sharks in the fossil genus Keasius. Additional material is needed for the exact taxonomic identification of the Tertiary basking sharks from Sakhalin.

Sign in / Sign up

Export Citation Format

Share Document