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Embryos of common thresher shark Alopias vulpinus in southern Brazil, south Atlantic Ocean
(Blackwell Publishing, 2006-07-01)
Eight embryonic thresher sharks Alopias vulpinus (53.9-124 cm total length) were collected from two females caught by commercial longline off southern Brazil in September and November 2004. Morphometric measurements are ...
Record of the goblin shark Mitsukurina owstoni (Chondrichthyes: Lamniformes: Mitsukurinidae) from the south-western Atlantic
(2014-01-01)
This paper reports the first well-documented specimen of the goblin shark, Mitsukurina owstoni in the south-western Atlantic, based on a mature male measuring 3152 mm total length, caught on 27 November 2008 off the Rio ...
Morphological abnormalities in a blue shark Prionace glauca (Chondrichthyes : Carcharhinidae) foetus from southern Brazil
(Blackwell Publishing, 2006-12-01)
This study records the occurrence of a blue shark Prionace glauca foetus, with morphological abnormalities in the trunk and cephalic region, from a female caught by a pelagic longline in October 2003, in southern Brazil. ...
Isolation and characterization of microsatellite loci in the whale shark (Rhincodon typus)
(Molecular Ecology Resources, 2009)
In preparation for a study on population structure of the whale shark (Rhincodon typus), nine species-specific polymorphic microsatellite DNA markers were developed. An inicial screening of 50 individuals from Holbox Island, ...
Bioaccumulation and biomagnification of total mercury in four exploited shark species in the Baja California Peninsula, Mexico
(Bulletin of Environmental Contamination and Toxicology, 2012)
The present study determined the average Mercury bioaccumulation in the muscle tissue of four shark species (Carcharhinus falciformis, Prionace glauca, Sphyrna zygaena and Isurus oxyrinchus) captured in the Baja California ...
Records of white shark, Carcharodon carcharias, in the Gulf of California, Mexico
(Marine Biodiversity Records, 2010)
The white shark is known to inhabit the Gulf of California, but few published records exist for the most frequent localities of captures or sightings of this protected and relatively uncommon shark in Gulf waters. We have ...
Plastic debris collars on juvenile carcharhinid sharks (Rhizoprionodon lalandii) in southwest Atlantic
(Elsevier B.V., 2002-10-01)
Three juvenile Brazilian sharpnose sharks (Rhizoprionodon lalandii) caught in gillnets in southeast Brazil, southwest Atlantic, were found with plastic debris rings around their gill or mouth region. The rings caused severe ...
Discrimination of Shark species by simple PCR of 5S rDNA repeats
(Sociedade Brasileira de Genética, 2008-01-01)
Sharks are suffering from intensive exploitation by worldwide fisheries leading to a severe decline in several populations in the last decades. The lack of biological data on a species-specific basis, associated with a ...
Discrimination of Shark species by simple PCR of 5S rDNA repeats
(Sociedade Brasileira de Genética, 2008-01-01)
Sharks are suffering from intensive exploitation by worldwide fisheries leading to a severe decline in several populations in the last decades. The lack of biological data on a species-specific basis, associated with a ...
Environmental enrichment effects on the reproductive behavior of captive nurse sharks Ginglymostoma cirratum
(Springer, 2021-04-07)
Nurse sharks (Ginglymostoma cirratum, Ginglymostomatidae) are one of the most exhibited shark species in aquariums worldwide. However, in these locations, their reproductive success rate is frequently low. Considering that ...