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Culture of the Aquatic Plant Egeria densa in a Closed System. Final Report for Contract No. 021065. Submitted to the Division of Aquaculture, Florida Department of Agriculture and Consumer Services
Title
Culture of the Aquatic Plant Egeria densa in a Closed System. Final Report for Contract No. 021065. Submitted to the Division of Aquaculture, Florida Department of Agriculture and Consumer Services.
Creator
Hanisak, M. Dennis, Wills, Paul S., Harbor Branch Oceanographic Institute
Date Issued
2015
PURL
http://purl.flvc.org/fau/fd/FA00007523
Subject Headings
Egeria densa, Aquaculture--Florida
Format
Document (PDF)
Distribution of Microalgae Supplemental Feed in a Land-Based Integrated Multi-Trophic Aquaculture System
Title
Distribution of Microalgae Supplemental Feed in a Land-Based Integrated Multi-Trophic Aquaculture System.
Creator
Brooker, Joseph, Wills, Paul S., Harbor Branch Oceanographic Institute, Scarpa, John
Abstract/Description
With the current decline in world fisheries it is necessary to develop more sustainable methods of marine resource production. An Integrated Multi-Trophic Aquaculture (IMTA) system is one such method. In an IMT A system the waste nutrients of fed species are used to culture other species, thus increasing the efficiency of feed use. A land-based IMTA (LB-IMTA) system was utilized in the cunent study in which one of the waste nutrient utilizing species was oysters. Oysters in this system were...
Show moreWith the current decline in world fisheries it is necessary to develop more sustainable methods of marine resource production. An Integrated Multi-Trophic Aquaculture (IMTA) system is one such method. In an IMT A system the waste nutrients of fed species are used to culture other species, thus increasing the efficiency of feed use. A land-based IMTA (LB-IMTA) system was utilized in the cunent study in which one of the waste nutrient utilizing species was oysters. Oysters in this system were determined to be not getting an adequate amount of waste nutrient feed necessary for normal growth. Therefore, oysters would need supplemental microalgae to grow normally, however the addition ofmicroalgae to the LB-IMTA might have detrimental effects, e.g., spreading throughout the system and changing the balance of nutrient flow or blooming throughout the system. Therefore, a study was designed to determine the fate of microalgae added to an LB-IMTA under a worst case scenario. With no oysters in the LB-IMTA system (total volume 61,740 L), 30 L ofmicroalgae (average density= 6.3x106 cells/mL) were added into the oyster tanks. Microalgae cells were tracked over time by sampling at distinct sites throughout the LB-IMTA system. Microalgae concentrations (i.e., #/mL) in the samples were determined with the aid of a Flocam®. Three microalgae species were individually tested: Dunaliella tertiolecta, Chaetoceros gracilis, and Isochrysis galbana Caribbean strain. Overall, the data indicated that all three micro algae species spread to almost all parts of the system after only 15 minutes, but nearly all of the microalgae was gone after 3 hrs; avg. = 8 cells/mL, which was 0.26% of the average theoretical homogenous concentration (3061 cells/mL). The primary removal of microalgae was most likely by the bead filters, which remove fine particles. The filtration components of the HBOI LB-IMTA were able to remove the excess microalgae and should limit any potentially detrimental effects caused by an overabundance of microalgae.
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Date Issued
2013
PURL
http://purl.flvc.org/fau/fd/FA00002670
Format
Document (PDF)
Tissue-specific copper concentrations in red drum after long-term exposure to sublethal levelsof waterborne copper and a 21-day withdrawal
Title
Tissue-specific copper concentrations in red drum after long-term exposure to sublethal levelsof waterborne copper and a 21-day withdrawal.
Creator
Robinson, C. B., Wills, Paul S., Riche, Marty A., Straus, D. L.
Date Issued
2013
PURL
http://purl.flvc.org/fau/fd/FA00007467
Subject Headings
Red drum, Copper, Heavy metals--Bioaccumulation, Copper--toxicity
Format
Document (PDF)
Inland marine fish culture in low salinity recirculating aquaculture systems
Title
Inland marine fish culture in low salinity recirculating aquaculture systems.
Creator
Riche, Marty A., Pfeiffer, Timothy J., Wills, Paul S., Amberg, J. J., Sepúlveda, M. S.
Date Issued
2012
PURL
http://purl.flvc.org/FCLA/DT/3343851
Subject Headings
Marine aquaculture, Mariculture, Marine fishes, Salinity
Format
Document (PDF)
Evaluation of three types of structured floating plastic media in moving bed biofilters for total ammonia nitrogen removal in a low salinity hatchery recirculating aquaculture system
Title
Evaluation of three types of structured floating plastic media in moving bed biofilters for total ammonia nitrogen removal in a low salinity hatchery recirculating aquaculture system.
Creator
Pfeiffer, Timothy J., Wills, Paul S.
Date Issued
2011
PURL
http://purl.flvc.org/fau/fd/FA00007466
Subject Headings
Aquaculture, Salinity, Nitrification, Filters and filtration
Format
Document (PDF)
Production characteristics and body composition of Florida pompano reared tomarket size at two different densities in low-salinity recirculating aquaculture systems
Title
Production characteristics and body composition of Florida pompano reared tomarket size at two different densities in low-salinity recirculating aquaculture systems.
Creator
Weirich, C. R., Wills, Paul S., Baptiste, R. M., Woodward, Peter N., Riche, Marty A.
Date Issued
2009
PURL
http://purl.flvc.org/fau/fd/FA00007163
Subject Headings
Florida pompano, Trachinotus carolinus, Salinity, Density, Aquaculture
Format
Document (PDF)
Low-head saltwater recirculating aquaculture system utilized for juvenile red drum production
Title
Low-head saltwater recirculating aquaculture system utilized for juvenile red drum production.
Creator
Pfeiffer, Timothy J., Wills, Paul S.
Date Issued
2009
PURL
http://purl.flvc.org/fau/fd/FA00007460
Subject Headings
Red drum, Aquaculture, Mariculture, Fish hatcheries--Design and construction
Format
Document (PDF)
Production characteristics and body composition of juvenile cobia fed three differentcommercial diets in recirculating aquaculture systems
Title
Production characteristics and body composition of juvenile cobia fed three differentcommercial diets in recirculating aquaculture systems.
Creator
Weirich, C. R., Wills, Paul S., Baptiste, R. M., Richie, M. A.
Date Issued
2009
PURL
http://purl.flvc.org/fau/fd/FA00007164
Subject Headings
Cobia, Aquaculture, Fishes--Feeding and feeds, Rachycentron canadum
Format
Document (PDF)
Low-head recirculating aquaculture system for juvenile red drum production
Title
Low-head recirculating aquaculture system for juvenile red drum production.
Creator
Pfeiffer, Timothy J., Wills, Paul S.
Date Issued
2008
PURL
http://purl.flvc.org/fau/fd/FA00007459
Subject Headings
Red drum, Aquaculture, Fish hatcheries--Design and construction
Format
Document (PDF)
Gonadal development and sex-specific demographics of the shovelnose sturgeon in the Middle Mississippi River
Title
Gonadal development and sex-specific demographics of the shovelnose sturgeon in the Middle Mississippi River.
Creator
Colombo, R. E., Garvey, J. E, Wills, Paul S.
Date Issued
2007
PURL
http://purl.flvc.org/FCLA/DT/3174105
Subject Headings
Shovelnose sturgeon, Scaphirhynchus platorynchus
Format
Document (PDF)
A guide to the embryonic development of the shovelnose sturgeon (Scaphirhynchus platorynchus), reared at a constant temperature
Title
A guide to the embryonic development of the shovelnose sturgeon (Scaphirhynchus platorynchus), reared at a constant temperature.
Creator
Colombo, R. E., Garvey, J. E., Wills, Paul S.
Date Issued
2007
PURL
http://purl.flvc.org/FCLA/DT/3174103
Subject Headings
Shovelnose sturgeon, Scaphirhynchus platorynchus
Format
Document (PDF)