Person:

Weissburg, Marc J.

Permanent Link

https://hdl.handle.net/1853/71828

Associated Organization(s)

Organizational Unit

School of Biological Sciences

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Publication Search Results

Now showing 1 - 10 of 15

Predator Induced and Non-Induced Eastern Oyster Shell Hardness Data

(Georgia Institute of Technology, 2024-08) Roney, Sarah ; Dickinson, Gary ; Belgrad, Ben ; Weissburg, Marc J.

This data is associated with the study "Eastern oysters minimize costs of inducible defenses by changing shell strengthening mechanism with age". Data was collected from eastern oysters, Crassostrea virginica, of two age groups (four-week and eight-week-old) that were induced with chemical cues from blue crabs, Callinectes sapidus, or not induced. Measurements included the Vickers hardness values of foliated and prismatic oyster shell layers, as well as the number and length of cracks resulting from hardness tests.
Predator Induced and Non-Induced Eastern Oyster Shell Thickness Data

(Georgia Institute of Technology, 2024-08) Roney, Sarah ; Dickinson, Gary ; Belgrad, Ben ; Weissburg, Marc J.

This data is associated with the study "Eastern oysters minimize costs of inducible defenses by changing shell strengthening mechanism with age". This study tested which mechanism, hardness or thickness, juvenile eastern oysters use to strengthen their shells in response to chemical cues from predators. Data was collected from eastern oysters, Crassostrea virginica, grown in a nursery in Dauphin Island, AL with or without exposure to chemical cues from blue crabs, Callinectes sapidus. Two age groups (four-week and eight-week-old post-settlement) of juveniles were included in this study. Oyster shell thickness overall and within both shell layers was measured.
Chemical Encoding of Risk Perception and Predator Detection Among Estuarine Invertebrates Dataset

(Georgia Institute of Technology, 2017-12-07) Poulin, Remington X. ; Lavoie, Serge ; Siegel, Katherine ; Gaul, David A. ; Weissburg, Marc J. ; Kubanek, Julia

The data files in "Archived PCA Spectra" and “Archived PLS-R Spectra” contain the unprocessed 1H NMR spectral data files underlying the publication " Chemical encoding of risk perception and predator detection among estuarine invertebrates."
You are what you eat: A combined metabolomics – bioassay approach to understanding prey responses to chemical cues produced by predators fed different diets dataset

(Georgia Institute of Technology, 2015-09-09) Weissburg, Marc J. ; Poulin, R.X. ; Kubanek, Julia
Peer J Consumption Data

(Georgia Institute of Technology, 2015-07-22) Weissburg, Marc J. ; Beauvais, Jeffrey

The data file contains the results of predation experiments on oyster spat by mud crabs in the presence of chemical cues produced by blue crabs fed differing amounts of mud crabs and placed different distances away. The treatment variables and levels consist of: Distance (0.25m, 0.5m, 1m, 1.5m, or 2m); Diet (High [H], Low [L], or Control [C]); and, Time (24, 48 hours). Date of experiment also is included. The measurement variables consist of Total Number Eaten, and Proportion Eaten Outside Refuge.
A Bio-inspired Plume Tracking Algorithm for Mobile Sensing Swarms in Turbulent Flow

(Georgia Institute of Technology, 2013-05) Chang, Dongsik ; Wu, Wencen ; Webster, Donald R. ; Weissburg, Marc J. ; Zhang, Fumin

We develop a plume tracking algorithm for a swarm of mobile sensing agents in turbulent flow. Inspired by blue crabs, we propose a stochastic model for plume spikes based on the Poisson counting process, which captures the turbulent characteristic of plumes. We then propose an approach to estimate the parameters of the spike model, and transform the turbulent plume field detected by sensing agents into a smoother scalar field that shares the same source with the plume field. This transformation allows us to design path planning algorithms for mobile sensing agents in the smoother field instead of in the turbulent plume field. Inspired by the source seeking behaviors of fish schools, we design a velocity controller for each mobile agent by decomposing the velocities into two perpendicular parts: the forward velocity incorporates feedback from the estimated spike parameters, and the side velocity keeps the swarm together. The combined velocity is then used to plan the path for each agent in the swarm. Theoretical justifications are provided for convergence of the agent group to the plume source. The algorithms are also demonstrated through simulations.
Acquisition of a research and teaching salt water flume at Priest Landing, GA.

(Georgia Institute of Technology, 2011-12-31) Weissburg, Marc J. ; Webster, Donald R. ; Fritz, Hermann M.
The hydrodynamics of benthic predation

(Georgia Institute of Technology, 2010-08-30) Weissburg, Marc J. ; Webster, Donald R.
Learning About and Through Biologically Inspired Design

(Georgia Institute of Technology, 2008-06-22) Vattam, Swaroop ; Helms, Michael E. ; Goel, Ashok K. ; Yen, Jeannette ; Weissburg, Marc J.

Biologically inspired design (BID) uses biological systems as analogues to develop solutions for design problems. Although designers have been looking to nature for inspiration for eons, only recently is BID gaining in importance as a wide-spread movement in design for environmentally-conscious sustainable development (e.g., Benyus 1997). But it is the tendency of the “products” of BID to be radically innovative (Forbes 2005; French 1998; Vogel 2000) that makes BID an interesting case for research in design creativity.
Chemoreception in the salmon louse (Lepeophtheirus salmonis): an electrophysiology approach

(Georgia Institute of Technology, 2007-12-13) Fields, David M. ; Weissburg, Marc J. ; Browman, H. I.

The search for effective and long-term solutions to the problems caused by salmon lice Lepeophtheirus salmonis (Krøyer, 1837) has increasingly included biological/ecological mechanisms to combat infestation. One aspect of this work focuses on the host-associated stimuli that parasites use to locate and discriminate a compatible host. In this study we used electrophysiological recordings made directly from the antennule of adult lice to investigate the chemosensitivity of L salmonis to putative chemical attractants from fish flesh, prepared by soaking whole fish tissue in seawater. There was a clear physiological response to whole fish extract (WFX) with threshold sensitivity at a dilution of 10–4. When WFX was size fractionated, L. salmonis showed the greatest responses to the water-soluble fractions containing compounds between 1 and 10 kDa. The results suggest that the low molecular weight, water-soluble compounds found in salmon flesh may be important in salmon lice host choice.