Genetic differentiation across eastern Pacific oceanographic barriers in the threatened seahorse Hippocampus ingens
نویسندگان
چکیده
منابع مشابه
Fecundity, survival, and growth of the seahorse Hippocampus ingens (Pisces: Syngnathidae) under semi-controlled conditions.
We studied fecundity, survival, and growth of the seahorse Hippocampus ingens under semi-controlled conditions. Three wild brood stock mature males of 14.8, 24.5, and 32.0 g released 1,598, 1,703, and 1,658 juveniles. Juvenile stocking densities of 12 were settled in 60-1 aquariums in groups of 1, 12, and 20 days old organisms. The rate of survival was 21.5, 61.9, and 59.0%, respectively, in 35...
متن کاملGenetic evidence for monogamy in the dwarf seahorse, Hippocampus zosterae.
Syngnathid fishes (pipefishes, seahorses, and seadragons) exhibit a wide array of mating systems ranging from monogamy with long-term pair bonds to more promiscuous mating systems, such as polyandry and polygynandry. Some seahorses, including the dwarf seahorse Hippocampus zosterae, have been found to be socially monogamous. Although several seahorse species have also been shown to be genetical...
متن کاملCrossing the impassable: genetic connections in 20 reef fishes across the eastern Pacific barrier.
The 'impassable' Eastern Pacific Barrier (EPB), ca 5000 km of deep water separating the eastern from the central Pacific, is the World's widest marine biogeographic barrier. Sequencing of mitochondrial DNA in 20 reef fish morphospecies encountered on both sides of the barrier revealed cryptic speciation in two. Among the other 18 species only two showed significant differentiation (as revealed ...
متن کاملGenetic monogamy despite social promiscuity in the pot-bellied seahorse (Hippocampus abdominalis).
Sexual selection theory predicts a positive correlation between relative parental investment and mate choice. In syngnathid fishes (seahorses and pipefish), males brood offspring in specialized brooding structures. While female-female mating competition has been demonstrated in some pipefishes, all seahorses (genus Hippocampus) studied to date have been found to have conventional sex roles with...
متن کاملPopulation Genetic Structure of the Dwarf Seahorse (Hippocampus zosterae) in Florida
The dwarf seahorse (Hippocampus zosterae) is widely distributed throughout near-shore habitats of the Gulf of Mexico and is of commercial significance in Florida, where it is harvested for the aquarium and curio trades. Despite its regional importance, the genetic structure of dwarf seahorse populations remains largely unknown. As an aid to ongoing conservation efforts, we employed three common...
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ژورنال
عنوان ژورنال: Conservation Genetics
سال: 2010
ISSN: 1566-0621,1572-9737
DOI: 10.1007/s10592-010-0092-x