Open Access Peer-reviewed Research Article

Evaluating habitat-fishery interactions: Submerged aquatic vegetation and blue crab fishery in the Chesapeake Bay

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Blue crab abundance
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Submitted   Aug 14, 2020
Published   Nov 3, 2020
Issue    Vol 2 No 2 (2020)
DOI   10.25082/REE.2020.02.006

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Nikolaos Mykoniatis corresponding author
Department of Maritime Business Administration, Texas A&M University at Galveston, USA
Richard Ready
Department of Agricultural Economics and Economics, Montana State University, USA

Abstract

This paper investigates habitat-fisheries interaction between two important resources in the Chesapeake Bay: blue crabs and submerged aquatic vegetation (SAV). A habitat can be essential to a species (the species is driven to extinction without it), facultative (more habitat means more of the species, but species can exist at some level without any of the habitat) or irrelevant (more habitat is not associated with more of the species). An empirical bioeconomic model that allows for all three possible relationships was estimated and two alternative approaches were used to test whether SAV matters for the crab stock. Our results indicate that a model that incorrectly assumes that habitat is essential to a species can result in model misspecification and biased estimates of the impact of habitat on species productivity. Using a model that assumes an essential relationship, we find that SAV has a significant positive impact on blue crab productivity (p<0.001). However, in a more general model, we failed to reject the null hypothesis that SAV is irrelevant for crabs in the Bay (p>0.05). 

Keywords
empirical bioeconomics, Chesapeake Bay, essential and facultative habitat, blue crabs, submerged aquatic vegetation

Article Details

How to Cite
Mykoniatis, N., & Ready, R. (2020). Evaluating habitat-fishery interactions: Submerged aquatic vegetation and blue crab fishery in the Chesapeake Bay. Resources and Environmental Economics, 2(2), 207-217. https://doi.org/10.25082/REE.2020.02.006
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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