D. S. Portnoy

Publications42
h-index14
Citations705
Highly Influential Citations68
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World phylogeography and male‐mediated gene flow in the sandbar shark, Carcharhinus plumbeus
The sandbar shark, Carcharhinus plumbeus, is a large, cosmopolitan, coastal species. Females are thought to show philopatry to nursery grounds while males potentially migrate long distances, creating… Expand
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Genetic polyandry and sexual conflict in the sandbar shark, Carcharhinus plumbeus, in the western North Atlantic and Gulf of Mexico
To investigate patterns of polyandry in the sandbar shark (Carcharhinus plumbeus), 20 pregnant females were sampled from the western North Atlantic and Gulf of Mexico. Five species‐specific… Expand
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These aren’t the loci you’e looking for: Principles of effective SNP filtering for molecular ecologists
Sequencing reduced‐representation libraries of restriction site‐associated DNA (RADseq) to identify single nucleotide polymorphisms (SNPs) is quickly becoming a standard methodology for molecular… Expand
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Molecular markers: progress and prospects for understanding reproductive ecology in elasmobranchs.
Application of modern molecular tools is expanding the understanding of elasmobranch reproductive ecology. High-resolution molecular markers provide information at scales ranging from the… Expand
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Selection and sex‐biased dispersal in a coastal shark: the influence of philopatry on adaptive variation
Sex‐biased dispersal is expected to homogenize nuclear genetic variation relative to variation in genetic material inherited through the philopatric sex. When site fidelity occurs across a… Expand
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Isolation and characterization of microsatellite markers for the dusky smoothhound shark, Mustelus canis
A total of 32 nuclear-encoded microsatellites, including 15 polymorphic and 13 monomorphic microsatellites, isolated from an enriched genomic library of the triakid shark, Mustelus canis (dusky… Expand
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Kin-Aggregations Explain Chaotic Genetic Patchiness, a Commonly Observed Genetic Pattern, in a Marine Fish
The phenomenon of chaotic genetic patchiness is a pattern commonly seen in marine organisms, particularly those with demersal adults and pelagic larvae. This pattern is usually associated with… Expand
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Identification and Distribution of Morphologically Conserved Smoothhound Sharks in the Northern Gulf of Mexico
AbstractIdentification of sharks within the genus Mustelus (smoothhound sharks) is problematic because of extensive overlap in external morphology among species. Consequently, species-specific… Expand
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A genetic linkage map of red drum, Sciaenops ocellatus.
Second-generation, sex-specific genetic linkage maps were generated for the economically important estuarine-dependent marine fish Sciaenops ocellatus (red drum). The maps were based on F(1) progeny… Expand
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Genotyping confirms significant cannibalism in northern Gulf of Mexico invasive red lionfish, Pterois volitans
DNA barcoding is used in a variety of ecological applications to identify organisms, including partially digested prey items from diet samples. That particular application can enhance the ability to… Expand
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