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The Economics Of Partial Artemia Replacement Using Two Commercially Available Feeds In The Diets Of Litopenaeus Vannamei From Z3/M1 – Pl10, Monique A. Giguere
The Economics Of Partial Artemia Replacement Using Two Commercially Available Feeds In The Diets Of Litopenaeus Vannamei From Z3/M1 – Pl10, Monique A. Giguere
Open Access Theses
The purpose of this study was twofold: 1) to identify commercially available feeds that could serve as suitable replacements for newly hatched Artemia in the diets of L. vannamei from Z3/M1 to PL10 without significantly affecting survival, final length and weight, and quality of the larvae and 2) to identify an ideal substitution rate between live Artemia and a replacement feed that maximizes feed and labor costs savings, survival, and PL quality. In Experiment 1, two commercially available Artemia replacement feeds, Zeigler EZ Artemia and Bernaqua Vitellus, were administered according to manufacturer’s guidelines in order to identify which feed served …
The Influence Of Endosymbiont Metabolism On The Δ15n Value Of The Pea Aphid, Acyrthosiphon Pisum, Philip F. Kushlan
The Influence Of Endosymbiont Metabolism On The Δ15n Value Of The Pea Aphid, Acyrthosiphon Pisum, Philip F. Kushlan
Open Access Theses
The use of stable nitrogen isotope data in ecological and physiological studies is based in the assumption that nitrogen fractionates predictably during metabolism, leading to a broadly conserved pattern whereby consumers are isotopically enriched with respect to their diets. The application of stable isotope data to such studies is limited is by our understanding of the factors in that cause variability in the Δ15N values of consumers. In particular, parasites and fluid-feeders have been shown to demonstrate isotopic depletion with respect to their food sources. One factor that has been suggested to influence the Δ15N values seen in fluid-feeding consumers …
The Spatial Ecology Of Black Groupers (Mycteroperca Bonaci) In The Upper Florida Keys, Veronique Koch
The Spatial Ecology Of Black Groupers (Mycteroperca Bonaci) In The Upper Florida Keys, Veronique Koch
Open Access Theses
Black groupers (Mycteroperca bonaci) are a critical component of coral reef ecosystems as well as South Florida fisheries. It is therefore of great concern that their essential fish habitat has not yet been fully defined. Using an interdisciplinary approach, the ecology of black groupers was characterized in the Upper Florida Keys. The first part of this study utilized acoustic telemetry. Self-contained acoustic receivers were placed in an array around Conch Reef and tracked 16 tagged black groupers for 483 days. Patterns of movement behavior and habitat usage were modeled using presence-absence data. The capture-recapture program MARK was used to estimate …