No evidence of increased demersal fish abundance six years after creation of marine protected areas along the southeast United States Atlantic coast

2016 ◽  
Vol 92 (4) ◽  
pp. 447-471 ◽  
Author(s):  
Nathan M Bacheler ◽  
Christina M Schobernd ◽  
Stacey L Harter ◽  
Andrew W David ◽  
George R Sedberry ◽  
...  
Keyword(s):  
United States ◽  
Protected Areas ◽  
Marine Protected Areas ◽  
Atlantic Coast ◽  
Demersal Fish ◽  
Fish Abundance ◽  
Southeast United States

Planktonic linkages among marine protected areas on the south Florida and southeast United States continental shelves

2007 ◽  
Vol 64 (9) ◽  
pp. 1234-1247 ◽  
Author(s):  
Jonathan A Hare ◽  
Harvey J Walsh
Keyword(s):  
United States ◽  
Protected Areas ◽  
Marine Protected Areas ◽  
Fishery Management ◽  
Florida Keys ◽  
South Florida ◽  
The South ◽  
Long Distance ◽  
Southeast United States ◽  
Continental Shelves

One proposed benefit of marine protected areas (MPAs) is increased larval export, potentially increasing recruitment in unprotected areas. Because most marine species have planktonic larvae, information regarding planktonic transport is needed to evaluate the benefit of larval export. We used satellite-tracked drifters to define planktonic transport routes and rates from three MPAs along the south Florida and southeast United States (US) continental shelves. Drifter tracks indicated both long-distance transport and local retention. A probability model was developed based on drifter releases. The region was broken into zones; zone-specific residence times and movements between zones were defined from the drifter tracks. Transport out of the region in association with the Loop Current – Florida Current – Gulf Stream was the most frequently observed outcome, yet retention was high in the lower Florida Keys and on the Georgia shelf. From the model results, long-distance planktonic transport and local retention are the endpoints of a continuum rather than a dichotomy. Further, the outcome of planktonic transport is spatially heterogeneous with some regions exhibiting more retention and others exhibiting more export. The spatial aspects of planktonic transport described here should be considered in designing MPAs with fishery management objectives in the south Florida and southeast US shelf ecosystems.

Great Lakes Copper and Shared Mortuary Practices on the Atlantic Coast: Implications for Long-Distance Exchange during the Late Archaic

2019 ◽  
Vol 84 (4) ◽  
pp. 591-609 ◽  
Author(s):  
Matthew C. Sanger ◽  
Brian D. Padgett ◽  
Clark Spencer Larsen ◽  
Mark Hill ◽  
Gregory D. Lattanzi ◽  
...  
Keyword(s):  
United States ◽  
Native American ◽  
Great Lakes ◽  
Atlantic Coast ◽  
Mortuary Practices ◽  
Late Archaic ◽  
Long Distance ◽  
Southeast United States ◽  
Shell Ring ◽  
Exchange Network

Analysis of human remains and a copper band found in the center of a Late Archaic (ca. 5000–3000 cal BP) shell ring demonstrate an exchange network between the Great Lakes and the coastal southeast United States. Similarities in mortuary practices suggest that the movement of objects between these two regions was more direct and unmediated than archaeologists previously assumed based on “down-the-line” models of exchange. These findings challenge prevalent notions that view preagricultural Native American communities as relatively isolated from one another and suggest instead that wide social networks spanned much of North America thousands of years before the advent of domestication.

Ecosystem-Based Management and Marine Protected Areas

2019 ◽  
pp. 151-162
Author(s):  
Ray Hilborn ◽  
Ulrike Hilborn
Keyword(s):  
Protected Areas ◽  
Fisheries Management ◽  
Marine Protected Areas ◽  
Fish Abundance ◽  
Fishing Gear ◽  
Sustainable Yield ◽  
Comprehensive Strategy ◽  
Ecosystem Impacts ◽  
Ecosystem Based Management ◽  
Total Fish

Ecosystem-Based Management and Marine Protected Areas. Ecosystem-based management (EBM) can be seen as a comprehensive strategy that includes the concern about the sustainable yield of fish alongside the ecosystem impacts of fishing and the impacts of fisheries management on human communities. While preventing overfishing goes a long way toward reaching its objective, protecting sensitive habitats from damaging fishing gear and reducing or eliminating bycatch of birds, mammals, and turtles must be given their due importance. Consideration should also be given to the trophic knock-on effects of fishing for one species that may cause other species less or more abundant. Marine protected areas are still considered the magic key to EBM, but their impact on total fish abundance has rarely been evaluated.

scholarly journals Comparing the Performance of Protected and Unprotected Areas in Conserving Freshwater Fish Abundance and Biodiversity in Lake Tanganyika, Tanzania

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Emmanuel Andrew Sweke ◽  
Julius Michael Assam ◽  
Abdillahi Ismail Chande ◽  
Athanasio Stephano Mbonde ◽  
Magnus Mosha ◽  
...  
Keyword(s):  
Protected Areas ◽  
Marine Protected Areas ◽  
Lake Tanganyika ◽  
Species Turnover ◽  
Environmental Parameters ◽  
Fish Abundance ◽  
Mahale Mountains National Park ◽  
Baseline Information ◽  
Abundance And Diversity ◽  
Management Approaches

Marine protected areas have been shown to conserve aquatic resources including fish, but few studies have been conducted of protected areas in freshwater environments. This is particularly true of Lake Tanganyika, Tanzania. To better conserve the lake’s biodiversity, an understanding of the role played by protected areas in conserving fish abundance and diversity is needed. Sampling of fish and environmental parameters was performed within the Mahale Mountains National Park (MMNP) and nearby unprotected areas at depths between 5 m and 10 m. Twelve replicates of fish sampling were performed at each site using gillnets set perpendicularly to the shore. Mann-Whitney tests were performed, and the total amount of species turnover was calculated. A total of 518 individual fish from 57 species were recorded in the survey. The fish weight abundance was fivefold greater in the MMNP than in the unprotected areas. Fish abundance and diversity were higher in the MMNP than in the unprotected areas and decreased with distance from it. Our findings confirmed the importance of the protected area in conserving fish resources in Lake Tanganyika. The study provides baseline information for management of the resources and guiding future studies in the lake and other related ecosystems. Management approaches that foster awareness and engage with communities surrounding the MMNP are recommended for successful conservation of the resources in the region.

United States Law, Marine Protected Areas, and Challenges to “Lasting Protection”

2020 ◽  
Vol 5 (1) ◽  
pp. 118-141
Author(s):  
Anastasia Telesetsky
Keyword(s):  
United States ◽  
Protected Areas ◽  
Federal Government ◽  
Marine Protected Areas ◽  
The United States ◽  
Marine Ecosystems ◽  
Special Edition ◽  
Large Marine Ecosystems ◽  
Political Forces ◽  
Fisheries Act

This contribution to this special edition focuses on United States practice in relation to marine protected areas (MPAs) particularly in relation to the protection of large marine ecosystems. The article describes how MPAs are designated under the National Marine Sanctuaries Act, the Antiquities Act, and the Magnuson-Stevens Fisheries Act. The article also identifies interactions between state and federal government in the management of MPAs as well as among nations. The article concludes with a discussion of the vulnerability of MPAs in the United States to resource development focused political forces.

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