Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Marine Biology
The Interaction Of Retention, Recruitment, And Density-Dependent Mortality In The Spatial Placement Of Marine Reserves, Jennifer E. Caselle, Scott L. Hamilton, Robert R. Warner
The Interaction Of Retention, Recruitment, And Density-Dependent Mortality In The Spatial Placement Of Marine Reserves, Jennifer E. Caselle, Scott L. Hamilton, Robert R. Warner
Gulf and Caribbean Research
Population density can affect rates of mortality and individual growth. We measured these for the non-exploited bluehead wrasse, Thalassoma bifasciatum, at three sites around St. Croix, US Virgin Islands. Previous work demonstrated that differences in the degree of larval retention in these sites results in very large differences in recruitment intensity. Post-settlement mortality differed among sites and was positively related to recruitment density. Post-settlement growth differences were small. Because of strong mortality effects early in life, adult densities and size/age distributions differed among sites and did not reflect differences in recruitment rate. The site with the highest retention and …
A Caribbean-Wide Survey Of Marine Reserves: Spatial Coverage And Attributes Of Effectiveness, Richard S. Appeldoorn, Kenyon C. Lindeman
A Caribbean-Wide Survey Of Marine Reserves: Spatial Coverage And Attributes Of Effectiveness, Richard S. Appeldoorn, Kenyon C. Lindeman
Gulf and Caribbean Research
Fully-protected marine reserves can function at several spatial scales, from a single area encompassing few habitats, to local networks of many habitats, to large-scale networks connected by larval dispersal. However, the amount, spatial distribution, and associated administrative attributes of Caribbean marine reserves are collectively unknown. We compiled information on reserves from 21 countries in order to 1) assemble a spatial framework to aid development of networks of reserves at the most effective spatial scales, and 2) aid policy makers in establishing reserves that are science-based and possess optimal management attributes. Since 1961 there have been over 50 reserves established in …
Shifting Baselines, Marine Reserves, And Leopold's Biotic Ethic, James A. Bohnsack
Shifting Baselines, Marine Reserves, And Leopold's Biotic Ethic, James A. Bohnsack
Gulf and Caribbean Research
Different human expectations and environmental ethics are key factors preventing the creation of marine reserve networks. People are skeptical about the benefits of no-take marine reserves because they have adjusted to scarcity and have low expectations about the productive capability of marine ecosystems. Pauly (1995) described this as a shifting baseline in which each generation sets its expectations based on its direct experiences and discounts experiences of previous generations. I show evidence of a declining Caribbean baseline based on Nassau grouper landings from Cuba and the U.S., and review common and often conflicting types of conservation ethics existing in North …