Repository

Assessing Marine Resources Using Ecology, Fisheries Science, and Expert Judgment

Author:
Teck, Sarah Joanne
Degree Supervisor:
Steven D. Gaines
Place of Publication:
[Santa Barbara, Calif.]
Publisher:
University of California, Santa Barbara
Creation Date:
2016
Issued Date:
2016
Topics:
Ecology, Environmental science, and Conservation biology
Keywords:
Ecosystem-based management
Human impact
Kelp forest
Marine protected area
Reproduction
Sea urchin fishery
Genres:
Online resources and Dissertations, Academic
Degree Grantor:
University of California, Santa Barbara. Ecology, Evolution & Marine Biology
Dissertation:
Ph.D.--University of California, Santa Barbara, 2016
Description:

One of the most challenging issues facing resource managers is how to prioritize conservation goals within ecosystems. Firstly, I found experts primarily used percent change and trophic impact as the basis for assigning ranks to ecosystem impacts. Mudflats, beach, salt marshes, and rocky intertidal were judged most vulnerable, and the highest stressor rankings included invasive species, ocean acidification, sea temperature change, and demersal destructive fishing. Secondly, I investigated how demographic metrics of the red sea urchin Mesocentrotus franciscanus varied in response to protection, temperature, and the giant kelp Macrocystis pyrifera. Thirdly, I demonstrated that urchin reproduction can predict fishing industry's standard quality ratings, price, effort, and landings. Understanding the spatiotemporal dynamics of urchin's reproduction is not only useful in understanding the ecology and population biology of this species, but also it is essential for managers and policymakers to direct efficient management and ensure sustainability, particularly under future climate change scenarios.

Physical Description:
1 online resource (186 pages)
Format:
Text
Collection(s):
UCSB electronic theses and dissertations
ARK:
ark:/48907/f3kh0n5b
ISBN:
9781339671215
Catalog System Number:
004653468
Rights:
In Copyright
File (Download) Description
Access: Public access
Pdf 32x Teck_ucsb_0035D_12881.pdf (4.43 MB) Full-text thesis or dissertation