Direct genetic evidence for reproductive philopatry and associated fine-scale migrations in female blacktip reef sharks (Carcharhinus melanopterus) in French Polynesia

2012 ◽  
Vol 22 (1) ◽  
pp. 201-214 ◽  
Author(s):  
Johann Mourier ◽  
Serge Planes
Keyword(s):  
French Polynesia ◽  
Genetic Evidence ◽  
Fine Scale ◽  
Reef Sharks ◽  
Carcharhinus Melanopterus ◽  
Direct Genetic Evidence

Fine-scale movements of juvenile blacktip reef sharks Carcharhinus melanopterus in a shallow nearshore nursery

2019 ◽  
Vol 623 ◽  
pp. 85-97 ◽  
Author(s):  
LW George ◽  
APB Martins ◽  
MR Heupel ◽  
CA Simpfendorfer
Keyword(s):  
Fine Scale ◽  
Reef Sharks ◽  
Carcharhinus Melanopterus

scholarly journals Same species, different prerequisites: investigating body condition and foraging success in young reef sharks between an atoll and an island system

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ornella C. Weideli ◽  
Ian A. Bouyoucos ◽  
Yannis P. Papastamatiou ◽  
Gauthier Mescam ◽  
Jodie L. Rummer ◽  
...  
Keyword(s):  
Body Condition ◽  
Prey Availability ◽  
Management Strategies ◽  
Maternal Investment ◽  
French Polynesia ◽  
Foraging Success ◽  
Site Specific ◽  
Reef Sharks ◽  
Island System ◽  
Carcharhinus Melanopterus

Abstract Acquiring and storing energy is vital to sharks of all age-classes. Viviparous shark embryos receive endogenous maternal energy reserves to sustain the first weeks after birth. Then, in order to maintain body condition, sharks must start foraging. Our goal was to understand whether maternal energy investments vary between blacktip reef sharks (Carcharhinus melanopterus) from two populations and to what extent body condition and the initiation of foraging might be affected by presumably variable maternal investments. A total of 546 young sharks were captured at St. Joseph atoll (Seychelles) and Moorea (French Polynesia) between 2014 and 2018, and indices of body condition and percentage of stomachs containing prey were measured. Maternal investment was found to be site-specific, with significantly larger, heavier, and better conditioned individuals in Moorea. Despite these advantages, as time progressed, Moorea sharks exhibited significant decreases in body condition and were slower to initiate foraging. We suggest that the young sharks’ foraging success is independent of the quality of maternal energy resources, and that other factors, such as prey availability, prey quality, and/or anthropogenic stressors are likely responsible for the observed differences across sites. Insights into intraspecific variations in early life-stages may further support site-specific management strategies for young sharks from nearshore habitats.

Fine-scale movement and activity patterns of Caribbean reef sharks (Carcharhinus perezi) in the Bahamas

2017 ◽  
Vol 101 (7) ◽  
pp. 1097-1104 ◽  
Author(s):  
Oliver N. Shipley ◽  
Jacob W. Brownscombe ◽  
Andy J. Danylchuk ◽  
Steven J. Cooke ◽  
Owen R. O’Shea ◽  
...  
Keyword(s):  
Activity Patterns ◽  
Fine Scale ◽  
The Bahamas ◽  
Caribbean Reef ◽  
Reef Sharks

Direct Genetic Evidence for Local Mate Competition in Ants

1998 ◽  
Vol 85 (12) ◽  
pp. 593-595 ◽  
Author(s):  
Jes S. Pedersen ◽  
Jacobus J. Boomsma
Keyword(s):  
Genetic Evidence ◽  
Local Mate Competition ◽  
Mate Competition ◽  
Local Mate ◽  
Direct Genetic Evidence

Direct genetic evidence for involvement of tau in progressive supranuclear palsy

Neurology ◽  
1998 ◽  
Vol 51 (4) ◽  
pp. 982-985 ◽  
Author(s):  
P. Bennett ◽  
V. Bonifati ◽  
U. Bonuccelli ◽  
C. Colosimo ◽  
M. De Mari ◽  
...  
Keyword(s):  
Progressive Supranuclear Palsy ◽  
Genetic Evidence ◽  
Direct Genetic Evidence
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