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Articles 1 - 4 of 4
Full-Text Articles in Marine Biology
The Ability Of Thaumoctopus Mimicus To Be Operantly Conditioned To A Sound Stimulus, Stephanie Wittman
The Ability Of Thaumoctopus Mimicus To Be Operantly Conditioned To A Sound Stimulus, Stephanie Wittman
Honors Projects
This paper focuses on the ability of the mimic octopus Thaumoctopus mimicus to be operantly conditioned to an auditory stimulus. The octopus is known to be the most advanced of the invertebrates and has learning abilities that are comparable to vertebrates in spite of their differences in brain structure. These animals have been shown to react to visual and tactile stimuli and can be operantly conditioned to perform behaviors to obtain a food reward. The goal of this experiment is to determine whether the octopus can be operantly conditioned to swim into a box on the side of its tank …
Nearshore Vertical Distribution Of Barnacle Cyprids: Temporal Patterns And Hydrographic Variability, Gabriela Yamhure
Nearshore Vertical Distribution Of Barnacle Cyprids: Temporal Patterns And Hydrographic Variability, Gabriela Yamhure
Theses
Most benthic organisms living in the intertidal zone have planktonic larvae that reside temporarily in the water column before settling in their adult habitats. Larvae aggregate in offshore larval pools, and transport horizontally and vertically in the water to remain in the nearshore and during their pelagic life. While some horizontal transport of larvae can be attributed to advection, behavioral responses, like vertical swimming and buoyancy control, allow larvae to position themselves at depths where flow direction can be exploited. Thus, knowledge on how vertical larval distribution relates to physical processes can be fundamental to better understand larval transport. These …
Non-Invasive Method For Leptin Supplementation In Zebrafish (Danio Rerio), Regan Mcnamara
Non-Invasive Method For Leptin Supplementation In Zebrafish (Danio Rerio), Regan Mcnamara
Williams Honors College, Honors Research Projects
I tested the hypothesis that recombinant leptin protein can be introduced to zebrafish in vivo through non-invasive soaking in a solution containing the protein. One way to study various molecules’ effects in vivo is through intraperitoneal or intracerebroventricular injections during the embryonic or larval stage, which is invasive, difficult to administer, and can have a high mortality rate. 48 hours post fertilization (hpf) zebrafish were soaked in a His-tagged recombinant leptin protein solution at 10 nM and 100 nM concentrations (produced by Genscript). After soaking, zebrafish larvae were washed extensively to remove all recombinant protein on their exterior before homogenization. …
Physiological Response Of Elasmobrachs During Propofol Immersion, Matthew Levendosky
Physiological Response Of Elasmobrachs During Propofol Immersion, Matthew Levendosky
Electronic Theses and Dissertations
Sensory experiments require anesthesia so the animal is immobilized, however fish anesthetics have shown to depress sensory responses. Newer anesthetics may offer similar anesthetic relief, but differ in means of action so sensory responses may be unaffected. Propofol has been used intravenously on small elasmobranchs but may provide prolonged effects if used as an immersion anesthetic. Objectives of this study were 1. Determine appropriate concentration of anesthetic to minimize induction and recovery for animals anesthetized at a surgical plane of anesthesia and 2. Measure physiological response of the pupil to light stimuli during anesthetic immersion. To address these objectives, I …