Genetic differentiation of the California spiny lobster Panulirus interruptus (Randall, 1840) along the west coast of the Baja California Peninsula, Mexico |
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Authors: | Francisco Javier García-Rodríguez Ricardo Perez-Enriquez |
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Institution: | (1) Centro de Investigaciones Biológicas del Noroeste (CIBNOR)., Mar Bermejo 195, Col. Playa Palo de Santa Rita, La Paz, Baja California Sur, 23090, México |
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Abstract: | Identifying reproductive stocks in commercial species is relevant to fishery management strategies. We obtained muscle samples
of California spiny lobster (Panulirus interruptus) from six localities along the west coast of the Baja California Peninsula and analyzed the genetic structure using mtDNA
RFLPs. Our results indicated that all localities shared the same major haplotypes and showed a spatial homogeneity in the
distribution of haplotype frequencies. An analysis of molecular variance indicated that only 0.84% of the genetic variability
was explained by differences among localities and was not significantly different from zero. Weak divergences were found between
Bahía Magdalena, the most southerly locality, in relation to other populations. Major oceanographic processes along this coast,
combined with a long larval period that supports passive transport among localities, are suggested to explain the results. |
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