JSM '97 Online

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SESSION: 173
TYPE: Regular Poster Contributed
DATE/TIME: 8/12/97:12:00PM--02:00PM
SPONSOR:

Abstract
TITLE: COMPARING RED ABALONE POPULATIONS ON THE SONOMA COUNTY, CALIFORNIA COAST
AUTHOR: Erik BURD *+

ADDRESS:+ Mathematics, Sonoma State Univeristy, 239 Richardson Drive, Mill Valley CA, 94941
EMAIL: eburd@digitalfoundry.com

KEYWORDS: Environment; Diving; Ocean; Wilcoxin; Marine;

ABSTRACT: This experiment was conducted during the Fall of 1993. The objective was to determine if the red abalone population in two coves along the Sonoma County Coast is statistically significant. They were Stillwater Cove, a Sonoma County Regional Park and Gerstle Cove State Reserve, part of Salt Point State Park. The population distribution in the two coves were found to be significantly different.
The coves are separated by three miles. Stillwater Cove is shallow and flat, making abalone harvesting easier. Gerstle Cove State Reserve is smaller, deeper and has more rock formations for abalone to hide.
Since 1990, the abalone population has declined rapidly, raising concern from environmentalists and abalone divers. Abalone diving is banned inside the Gerstle Cove State Reserve, which has prompted a proposal to ban abalone hunting along a 12 mile long stretch of coastline that would include Gerstle Cove and Stillwater Cove. Additional proposals have included reducing the length of the abalone season from six months to four months. The objective of this experiment was to help determine if either proposal would be a good first step to help increase the abalone population.