High Connectivity in the Deepwater Snapper Pristipomoides filamentosus (Lutjanidae) across the Indo-Pacific with Isolation of the Hawaiian Archipelago

摘要: In the tropical Indo-Pacific, most phylogeographic studies have focused on shallow-water taxa that inhabit reefs to approximately 30 m depth. Little is known about large predatory fishes, primarily snappers (subfamily Etelinae) and groupers Epinephelinae) occur at 100–400 m. These long-lived, slow-growing species support fisheries across yet no comprehensive genetic surveys within this group been conducted. Here we contribute first range-wide survey of a deepwater Indo-Pacific snapper, Pristipomoides filamentosus, with special focus Hawai'i. We applied mtDNA cytochrome b 11 microsatellite loci 26 samples (N = 1,222) collected 17,000 km from Hawai'i western Indian Ocean. Results indicate P. filamentosus highly dispersive low but significant population structure (mtDNA ΦST 0.029, FST 0.029) due entirely isolation No was detected 14,000 Tonga in Central Pacific Seychelles Ocean, pattern rarely observed reef species. Despite long pelagic phase (60–180 days), interisland dispersal as adults, extensive gene flow unable maintain connectivity Coalescent analyses may colonized K–52 K y ago against prevailing currents, away dominating migration estimates. harbors diversity Hawai'i, common marine our data single archipelago-wide stock. However, like Hawaiian Grouper, Hyporthodus quernus, snapper had several pairwise comparisons (FST) clustered around middle archipelago (St. Rogatien, Brooks Banks, Gardner) indicating region be isolated or (more likely) receives input Johnston Atoll south.