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- Title
- SOMALI PIRACY AND THE INTRODUCTION OF SOMALIA TO THE WESTERN WORLD.
- Creator
-
Jean-Jacques, Daniel, Walker, Ezekiel, University of Central Florida
- Abstract / Description
-
This thesis investigates the origins of the modern phenomenon of Somali piracy within a deeper historical context. More specifically, this analysis concentrates on the development of piracy in the north of the country. It is here contended that Somali piracy is, in fact, the product of the confluence of three historical currents. The first of these currents is the progressive degeneration of traditional Somali institutions due to exposure to the colonial and global markets. The second is the...
Show moreThis thesis investigates the origins of the modern phenomenon of Somali piracy within a deeper historical context. More specifically, this analysis concentrates on the development of piracy in the north of the country. It is here contended that Somali piracy is, in fact, the product of the confluence of three historical currents. The first of these currents is the progressive degeneration of traditional Somali institutions due to exposure to the colonial and global markets. The second is the increasing reliance of northern Somalis on maritime resources due to over exploitation of the land and the fishing initiatives of the Barre regime. The final current is the intrusion of foreign fishing vessels into Somali territorial waters, beginning in the early 1990s, for the purposes of illegal fishing and the dumping of toxic waste.
Show less - Date Issued
- 2011
- Identifier
- CFE0003611, ucf:48876
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003611
- Title
- The next "killer" algae? Assessing and mitigating invasion risk for aquarium strains of the marine macroalgal genus Chaetomorpha.
- Creator
-
Odom, Rachel, Walters, Linda, Hinkle, Charles, Hanisak, M. Dennis, University of Central Florida
- Abstract / Description
-
Biological invasions threaten the ecological integrity of natural ecosystems. Anthropogenic introductions of non-native species can displace native flora and fauna, altering community compositions and disrupting ecosystem services. One often-overlooked vector for such introductions is the release of aquarium organisms into aquatic ecosystems. Following detrimental aquarium-release invasions by the (")killer alga(") Caulerpa taxifolia, aquarium hobbyists and professions began promoting the use...
Show moreBiological invasions threaten the ecological integrity of natural ecosystems. Anthropogenic introductions of non-native species can displace native flora and fauna, altering community compositions and disrupting ecosystem services. One often-overlooked vector for such introductions is the release of aquarium organisms into aquatic ecosystems. Following detrimental aquarium-release invasions by the (")killer alga(") Caulerpa taxifolia, aquarium hobbyists and professions began promoting the use of other genera of macroalgae as (")safe(") alternatives. The most popular of these marine aquarium macroalgae, the genus Chaetomorpha, is analyzed here for invasion risk. Mitigation strategies are also evaluated. I found that the propensity for reproduction by vegetative fragmentation displayed by aquarium strains of Chaetomorpha poses a significant invasion threat(-)fragments of aquarium Chaetomorpha are able to survive from sizes as small as 0.5 mm in length, or one intact, live cell. Fragments of this size and larger are generated in large quantities in online and retail purchases of Chaetomorpha, and introduction of these fragments would likely result in viable individuals for establishment in a variety of geographic and seasonal environmental conditions. Mitigation of invasion risk was assessed in two ways(-)rapid response to a potential introduction by chemical eradication and prevention through safe hobbyist disposal. I tested the effectiveness of five chemicals used as algicides and found that acetic acid was highly effective at limiting survival and growth of aquarium Chaetomorpha. Chlorine bleach, copper sulfate and rock salt were effective at limiting growth but were inconsistent or ineffective in reducing survival of algal fragments. The algicide Sonar limited neither survival nor growth. If aquarium strains of Chaetomorpha are released, chemical eradication presents a viable management strategy, particularly through the use of acetic acid. A more cost-effective strategy, however, would be preventing introductions; thus safe alternatives to release were determined for hobbyist disposal of unwanted or excess aquarium Chaetomorpha. Here I present the minimum exposure durations necessary to induce full mortality of aquarium Chaetomorpha through boiling, microwaving, freezing, desiccation and exposure to freshwater. Hobbyist disposal by any of these methods would constitute safe alternatives to introduction of the alga into natural environments. Such preventative measures will inform outreach campaigns in order to limit the potential for aquarium-release introduction.
Show less - Date Issued
- 2012
- Identifier
- CFE0004624, ucf:49918
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004624
