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Research Publications: UM-SG-RS-2003-31
Title:
Comment on Mollet and Cailliet (2002): confronting models with data.Year:
2003Authors:
Miller, TJ; Frisk, MG; Fogarty, MJSource:
Marine and Freshwater Research 54 ( 6 ) : 737 - 738DOI:
10.1071/MF02079Abstract:
In a recent paper, Mollet and Cailliet (2002) developed demographic models for four species of elasmobranchs for which substantial amounts of data were available. In their work, they compared predictions from life history tables (LHT), age-based or Leslie matrix projection models and stage-based matrix projection models. Mollet and Cailliet conclude that LHT or Leslie matrix models provide the most reasonable estimates of demographic parameters and should form the basis of elasmobranch management. We suggest that the piecemeal comparison of the performance of structurally similar models for a few selected species does not provide a reliable foundation from which to understand elasmobranch life histories; nor does it provide a foundation from which to make recommendations for elasmobranch management'Related Research Project(s)' link to details about research projects funded by Maryland Sea Grant that led to this publication. These details may include other impacts and accomplishments resulting from the research.
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Leone Yisrael is a cephalopod-loving scuba diver, cook, and loves to try new activities. She conducts genetic analysis and fieldwork at the Smithsonian Environmental Research Center through the Coastal Disease Ecology Lab.
Featured Research Project
Developing a habitat model for mysids, an important link in Chesapeake Bay food webs
Mysids are important mesozooplankton prey for many species of fish in Chesapeake Bay and are an important link in transferring energy from lower to upper trophic levels. Mysids also serve as biological vectors for benthic-pelagic coupling due to their diel vertical migration and omnivorous prey-switching behavior, which makes mysids important regulators of food web architecture. Despite their central role in coastal food webs, surprisingly little is known about mysid ecology and dynamics in Chesapeake Bay.
