Poor-data and data-poor species stock assessment using a Bayesian hierarchical approach
dc.contributor | Virginia Tech | en |
dc.contributor.author | Jiao, Y. | en |
dc.contributor.author | Cortes, E. | en |
dc.contributor.author | Andrews, K. | en |
dc.contributor.author | Guo, F. | en |
dc.contributor.department | Statistics | en |
dc.date.accessed | 2014-01-08 | en |
dc.date.accessioned | 2014-01-10T20:07:54Z | en |
dc.date.available | 2014-01-10T20:07:54Z | en |
dc.date.issued | 2011-10 | en |
dc.description.abstract | Appropriate inference for stocks or species with low-quality data (poor data) or limited data (data poor) is extremely important. Hierarchical Bayesian methods are especially applicable to small-area, small-sample-size estimation problems because they allow poor-data species to borrow strength from species with good-quality data. We used a hammerhead shark complex as an example to investigate the advantages of using hierarchical Bayesian models in assessing the status of poor-data and data-poor exploited species. The hammerhead shark complex (Sphyrna spp.) along the Atlantic and Gulf of Mexico coasts of the United States is composed of three species: the scalloped hammerhead (S. lewini), the great hammerhead (S. mokarran), and the smooth hammerhead (S. zygaena) sharks. The scalloped hammerhead comprises 70-80% of the catch and has catch and relative abundance data of good quality, whereas great and smooth hammerheads have relative abundance indices that are both limited and of low quality presumably because of low stock density and limited sampling. Four hierarchical Bayesian state-space surplus production models were developed to simulate variability in population growth rates, carrying capacity, and catchability of the species. The results from the hierarchical Bayesian models were considerably more robust than those of the nonhierarchical models. The hierarchical Bayesian approach represents an intermediate strategy between traditional models that assume different population parameters for each species and those that assume all species share identical parameters. Use of the hierarchical Bayesian approach is suggested for future hammerhead shark stock assessments and for modeling fish complexes with species-specific data, because the poor-data species can borrow strength from the species with good data, making the estimation more stable and robust. | en |
dc.description.sponsorship | USDA Cooperative State Research, Education and Extension Service 0210510 | en |
dc.description.sponsorship | MARFIN | en |
dc.description.sponsorship | NOAA | en |
dc.identifier.citation | Yan Jiao, Enric Cortés, Kate Andrews, and Feng Guo 2011. Poor-data and data-poor species stock assessment using a Bayesian hierarchical approach. Ecological Applications 21:2691–2708. http://dx.doi.org/10.1890/10-0526.1 | en |
dc.identifier.doi | https://doi.org/10.1890/10-0526.1 | en |
dc.identifier.issn | 1051-0761 | en |
dc.identifier.uri | http://hdl.handle.net/10919/24795 | en |
dc.identifier.url | http://www.esajournals.org/doi/pdf/10.1890/10-0526.1 | en |
dc.language.iso | en_US | en |
dc.publisher | Ecological Society of America | en |
dc.rights | In Copyright | en |
dc.rights.holder | Ecological Society of America | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | Bayesian hierarchical model | en |
dc.subject | data-poor assessment | en |
dc.subject | hammerhead shark | en |
dc.subject | fish complex | en |
dc.subject | population dynamics | en |
dc.subject | small sample size | en |
dc.subject | developing fisheries | en |
dc.subject | population-models | en |
dc.subject | demography | en |
dc.subject | growth | en |
dc.subject | uncertainty | en |
dc.subject | salmon | en |
dc.subject | shark | en |
dc.subject | management | en |
dc.subject | trends | en |
dc.subject | Environmental Sciences & Ecology | en |
dc.title | Poor-data and data-poor species stock assessment using a Bayesian hierarchical approach | en |
dc.title.serial | Ecological Applications | en |
dc.type | Article - Refereed | en |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- 10-0526%2E1.pdf
- Size:
- 4.26 MB
- Format:
- Adobe Portable Document Format
- Description:
- Main article