Results 21 to 30 of about 4,435 (179)

Parthenogenesis in a large‐bodied requiem shark, the blacktip Carcharhinus limbatus [PDF]

Journal of Fish Biology, 2008
Genetic evidence is provided for parthenogenesis in a large‐bodied shark, the blacktip Carcharhinus limbatus, from the speciose and commercially important family Carcharhinidae, the first verified case of asexual development in this lineage and only the second for any chondrichthyan.
Chapman, Demian D., Firchau, B., Shivji, Mahmood S.   +2 more
openaire   +3 more sources

Gillnet selectivity for juvenile blacktip sharks (Carcharhinus limbatus) [PDF]

, 2012
Gillnet mesh selectivity parameters were estimated for juvenile blacktip sharks (Carcharhinus limbatus) by using length data from an experimental fishery-independent gillnet survey in the northeastern Gulf of Mexico. Length data for 1720 blacktip sharks were collected over 17 years (1994–2010) with seven mesh sizes ranging from 7.6 to 20.3 cm.
Baremore, Ivy E., Berthea, Dana M., Andrews, Kate I.   +2 more
openaire   +3 more sources

Stochastic demographic analyses of the silvertip shark ( Carcharhinus albimarginatus ) and the common blacktip shark ( Carcharhinus limbatus ) from the Indo-Pacific

Fisheries Research, 2017
Abstract Information on how shark populations respond to fishing mortality ( F ) is critical to developing successful management and conservation strategies. However, data on catch, fishing effort and species abundance are often lacking for shark populations – preventing stock assessments from being conducted.
Smart, Jonathan J., Chin, Andrew, Tobin, Andrew J., White, William T., Kumasi, Brian, Simpfendorfer, Colin A.   +5 more
openaire   +3 more sources

Preliminary assessment of the ecological sustainability of a data‐limited small‐scale shark fishery in India

Conservation Science and Practice
Small‐scale fisheries support millions of people globally, but if poorly monitored and managed, they can negatively impact threatened marine species like sharks.
Trisha Gupta, William N. S. Arlidge, Divya Karnad, Avanthika Kamath, Harsha Gaonkar, E. J. Milner Gulland   +5 more
doaj   +2 more sources

A Comparison of DNA Metabarcoding Cloacal Swabs and Stomach Contents for Shark Diet Reconstruction

Environmental DNA
Metabarcoding fecal matter is increasingly common in dietary studies across a variety of taxa. This approach assumes that enough prey DNA remains detectable in the fecal DNA (fDNA) as the prey DNA becomes degraded while passing through the digestive ...
Savannah J. Ryburn, Eldridge Wisely, Jeffrey D. Plumlee, Creed C. Branham, F. Joel Fodrie, John F. Bruno   +5 more
doaj   +2 more sources

Genetic structure, population demography and seasonal occurrence of blacktip shark Carcharhinus limbatus in Bimini, the Bahamas

Journal of Fish Biology, 2015
A longline survey was conducted from 2004 to 2014 to investigate the demographic population structure and seasonal abundance of the blacktip shark Carcharhinus limbatus in the Bimini Islands, the Bahamas. All individuals sampled (n = 242) were sub‐adult or adults [70·1–145·1 cm pre‐caudal length (LPC) range] with no neonates or YOY recorded in Bimini ...
K S, Gledhill, S T, Kessel, T L, Guttridge, A C, Hansell, A E, Bester-van der Merwe, K A, Feldheim, S H, Gruber, D D, Chapman   +7 more
openaire   +3 more sources

Spatial and temporal use of a tropical nursery habitat by juvenile blacktip sharks (Carcharhinus limbatus)

Frontiers in Marine Science
Blacktip sharks (Carcharhinus limbatus) are a circumglobal species that rely on nearshore nursery habitats during their early years. Movement patterns and habitat use of blacktip sharks in the Hawaiian Islands is poorly understood, and no nursery ...
Lauren A. Moe, Jason P. Turner, Jay R. Rooker, Jay R. Rooker, R. J. David Wells, R. J. David Wells, Steven L. Colbert   +6 more
doaj   +2 more sources

Insights into the structure of grey reef shark aggregation, Carcharhinus amblyrhynchos (Bleeker, 1856), in two distinct channels of the Maldivian archipelago, Indian Ocean. [PDF]

J Fish Biol
Abstract The grey reef shark Carcharhinus amblyrhynchos is one of the most frequently encountered reef‐associated shark species in the Maldives, yet very little is known about its local size structure or population dynamics. This study provides new insights into two aggregations of C.
Parmegiani A, Gobbato J, Yoosuf R, Seveso D, Galli P, Whitehead AD, Ismail Y, Montano S.   +7 more
europepmc   +2 more sources

Orientation of Blacktip Sharks (<i>Carcharhinus limbatus</i>) to Underwater Sound. [PDF]

Integr Org Biol
Synopsis Sharks respond to low frequency pulsed sounds but are presumed to lack the capacity to detect these sounds beyond the acoustic near field, where particle motion dominates. This study quantified the distance that blacktip sharks (Carcharhinus limbatus) oriented to sound stimuli and determined that responses could be ...
Sullivan CL, Gerstein ER, Kajiura SM.
europepmc   +2 more sources

Liver lipids of Indian and Atlantic Ocean spinner Carcharhinus brevipinna and blacktip Carcharhinus limbatus sharks

, 2011
Shark liver oils are rich in polyunsaturated fatty acids, especially the n3 moieties. Data on the liver fatty acids of sharks from African waters, however, are limited. Liver samples from sharks from the western Indian Ocean off the east coast of South Africa and those from the Atlantic Ocean and Gulf of Mexico were examined.
Davidson, B, Zayed, M, Zayed, S, Cliff, G   +3 more
openaire   +2 more sources