Going Off the Deep End: Fishery Reserves and Considerations for The Management of Deep-Water Demersal Fishes

dc.contributor.advisor Weng, Kevin C.
dc.contributor.author Scherrer, Stephen Royston
dc.contributor.department Marine Biology
dc.date.accessioned 2020-02-20T18:09:38Z
dc.date.issued 2019
dc.description.degree Ph.D.
dc.embargo.liftdate 2021-02-12
dc.identifier.uri http://hdl.handle.net/10125/66248
dc.subject Natural resource management
dc.subject Ecology
dc.subject Biological oceanography
dc.subject Acoustic Telemetry
dc.subject BACIP
dc.subject Fishery Reserves
dc.subject Growth
dc.subject Pristipomoides filamentosus
dc.subject Tagging
dc.title Going Off the Deep End: Fishery Reserves and Considerations for The Management of Deep-Water Demersal Fishes
dc.type Thesis
dcterms.abstract Deep-living demersal fishes are an important resource throughout the tropical Indo-Pacific supporting commercial, recreational, and subsistence fisheries. Many of these species are long-living, slow growing, and late to mature making them particularly susceptible to over-exploitation. Effective management of these stocks are imperative to their long-term sustainability. This dissertation addresses the effectiveness of no-take fishery reserves in Hawaii as a strategy for managing these resources. I explore the ways in which we evaluate the appropriate spatial scale for reserves using acoustic telemetry and how these methods differ in deep-water environments. Applying this method to Pristipomoides filamentosus, a key species component of Hawaii’s bottomfish stock complex, I compare the range of their observed movements to a reserve off of Oahu’s eastern shore, finding the scale of movement to be less than a coarse estimate of the available habitat in this, and other reserve areas. Using a database of landings for the commercial fishery, I quantify changes in catch, effort, and fisher participation that have occurred since these areas were enacted and explore how these metrics changed disproportionately in areas where habitat has been protected compared to unrestricted areas of the fishery. Finally, I apply an integrative method for estimating growth, a key parameter for understanding stock dynamics, to P. filamentosus using existing datasets and mark-recapture data collected in the early 1990s. Parameters obtained using this method are then compared to previous estimates of growth for this species.
dcterms.extent 230 pages
dcterms.language eng
dcterms.publisher University of Hawaiʻi at Mānoa
dcterms.rights All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.type Text
local.identifier.alturi http://dissertations.umi.com/hawii:10432
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