Genetic Diversity and Population Structure of Squalus cf. mitsukurii (Chondrichthyes: Squalidae) Revealed by ddRAD Sequencing. [PDF]
Anim GenetABSTRACT Assessing genetic structure across ocean basins is essential to understand connectivity and guide conservation in data‐deficient open‐water sharks. In this study, we examined the population genomics of Squalus cf. mitsukurii by analyzing tissue samples collected from two distant regions: California, USA (Pacific Ocean) and Pernambuco, Brazil ...
Adachi AMCL +11 more
europepmc +2 more sources
Demographic inferences after a range expansion can be biased: the test case of the blacktip reef shark (Carcharhinus melanopterus). [PDF]
Heredity (Edinb), 2019 The evolutionary history of species is a dynamic process as they modify, expand, and contract their spatial distributions over time. Range expansions (REs) occur through a series of founder events that are followed by migration among neighboring demes.
Maisano Delser P +7 more
europepmc +4 more sources
Parasitic copepods (Crustacea, Hexanauplia) on fishes from the lagoon flats of Palmyra Atoll, Central Pacific [PDF]
ZooKeys, 2019 We surveyed copepods parasitic on the fishes at Palmyra, a remote atoll in the Central Indo-Pacific faunal region. In total, we collected 849 individual fish, representing 44 species, from the intertidal lagoon flats at Palmyra and recovered 17 parasitic
Lilia C. Soler-Jiménez +10 more
doaj +3 more sources
Long-term changes in species composition and relative abundances of sharks at a provisioning site. [PDF]
PLoS ONE, 2014 Diving with sharks, often in combination with food baiting/provisioning, has become an important product of today's recreational dive industry. Whereas the effects baiting/provisioning has on the behaviour and abundance of individual shark species are ...
Juerg M Brunnschweiler +2 more
doaj +1 more source
The shark assemblage at French Frigate Shoals atoll, Hawai'i: species composition, abundance and habitat use. [PDF]
PLoS ONE, 2011 Empirical data on the abundance and habitat preferences of coral reef top predators are needed to evaluate their ecological impacts and guide management decisions.
Jonathan J Dale +3 more
doaj +1 more source
Defining ecological roles of sharks on coral reefs. [PDF]
Biol Rev Camb Philos SocABSTRACT Sharks have often been perceived to play a critical role in the dynamics of coral reef ecosystems globally. Yet, there is relatively little evidence to support this idea across all but a limited set of species and contexts. Research on the roles and importance of reef sharks has been complicated by logistical challenges in collecting data on ...
Klinard NV +3 more
europepmc +2 more sources
Thermal tolerance and hypoxia tolerance are associated in blacktip reef shark (Carcharhinus melanopterus) neonates [PDF]
Journal of Experimental Biology, 2020 ABSTRACT Thermal dependence of growth and metabolism can influence thermal preference and tolerance in marine ectotherms, including threatened and data-deficient species. Here, we quantified the thermal dependence of physiological performance in neonates of a tropical shark species (blacktip reef shark, Carcharhinus melanopterus) from ...
Ian A. Bouyoucos +7 more
openaire +3 more sources
Journal of Zoological and Botanical Gardens, 2022 The space use of captive animals has been reliably used as a tool to measure animal welfare in recent years. However, most analyses of space use focus primarily on terrestrial animals, with very little emphasis placed on the space use of aquatic animals.
Alexis M. Hart +2 more
doaj +1 more source
Summarising 40 years of gastric lavage studies to evaluate efficiency and survival in sharks and rays. [PDF]
J Fish BiolAbstract Traditionally, lethal stomach dissection has been used to study the diets of sharks and rays, but conservation and animal welfare concerns necessitate non‐lethal alternatives, such as gastric lavage (stomach or gut flushing). In this study, we summarised gastric lavage studies on elasmobranchs to identify which species/groups it has been ...
Myers J, Sheaves M, Barnett A.
europepmc +2 more sources
Drivers of variation in occurrence, abundance, and behaviour of sharks on coral reefs
Scientific Reports, 2022 Quantifying the drivers of population size in reef sharks is critical for the development of appropriate conservation strategies. In north-west Australia, shark populations inhabit coral reefs that border growing centres of human population, industry ...
E. Lester +8 more
doaj +1 more source