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Water Discharge Models, Seasonal Effluent Mass Loading, And Best Management Practices For Crawfish Ponds, Landon David Parr
Water Discharge Models, Seasonal Effluent Mass Loading, And Best Management Practices For Crawfish Ponds, Landon David Parr
LSU Master's Theses
Nearly 35,000 ha are used to grow crawfish in southwest and south-central Louisiana, and many of these ponds discharge into impaired water bodies. In 2002, proposed guidelines were published by the United States Environmental Protection Agency (USEPA) assigning effluent limitations and standards for some aquaculture production systems and exempting others (e.g. crawfish ponds). This research had three objectives relative to crawfish ponds: develop water discharge models; final drawdown effluent quality and seasonal mass loading of solids and nutrients; and identification of Best Management Practices (BMPs) that could reduce effluent discharge and improve effluent quality. Models for south-central and southwest Louisiana …
Refrigerated Storage And Cryopreservation Of Sperm For The Production Of Red Snapper And Snapper Hybrids, Kenneth Lee Pickrell Riley
Refrigerated Storage And Cryopreservation Of Sperm For The Production Of Red Snapper And Snapper Hybrids, Kenneth Lee Pickrell Riley
LSU Master's Theses
The red snapper Lutjanus campechanus is an economically valuable sport and commercial fishery, and because of its high market value and limited commercial harvest, red snapper have received considerable attention as a candidate for marine aquaculture and stock enhancement programs. The goal of this thesis was to improve hatchery techniques for artificial spawning of red snapper Lutjanus campechanus. The objectives were to: 1) refine protocols for collecting, handling, transport, and holding of mature red snapper broodstock for induced spawning; 2) establish methods for strip-spawning of red snapper to optimize egg quality; 3) develop procedures for the collection, storage, and use …
Nitrification Rates In A Reversed-Flow, Spouted-Bed, Bioreactor Applied To Recirculating Aquaculture Systems, Jonathan Thomas Scott
Nitrification Rates In A Reversed-Flow, Spouted-Bed, Bioreactor Applied To Recirculating Aquaculture Systems, Jonathan Thomas Scott
LSU Master's Theses
The effects of media selection and organic loading on nitrification rates in a reversed-flow, three-phase, spouted-bed, bioreactor with draft-tube (A-1 Aquaculture Continuous-Cleaning Multifunctional Biofilter or CCMB) were studied. Experiments were conducted on three identical recirculating aquaculture systems (RAS) each having a CCMB unit with a unique plastic pelletized media and operated over five successive trials with varying components and operating conditions. Based upon organic loading, three of the five trials were grouped into two organic loading regimes of approximately 91 mg/L COD and 149 mg/L COD. Comparing nitrification rates against the three media types by organic loading showed that media …