MBE702 Seminar Evaluation: Lela Schlenker
Why Tag a Captive Fish? Evaluating Spawning Behavior of Mahi-Mahi Using Pop-up Satellite Archival Tags

Schlenker, LS, Stieglitz, JD, Hoenig, RH, Faillettaz, R, Babcock, EA, Lam, CH, Benetti, DD, Paris, CB, Grosell, M

Mahi-mahi (Coryphaena hippurus, “mahi” in the following) is a highly migratory ecologically and commercially important pelagic fish species. Understanding migration and habitat utilization of highly migratory fishes is paramount to understanding their ecology and concomitant with successful management. To better understand behavior in wild mahi, we used pop-up satellite archival tags (PSATs) to measure acceleration, depth, temperature, and light levels. To model acceleration patterns around spawning we tagged wild-caught captive mahi with PSATs and observed them in captivity. A boosted regression tree model was built to predict spawning events based on observed accelerometry data and time of day. We then deployed 16 PSATs on wild mahi in the Florida straits (FL; n=14) and the Gulf of Mexico (GOM; n=2). The spawning model was applied to PSAT data from wild mahi and the depths and temperatures associated with the potential spawning events were extracted. PSAT light data were modeled using Trackit, a state-space Kalman filter model, to estimate migrations. PSAT data demonstrated that mahi spawn at depth, migrate up to 100 km per day, and inhabit a wide range of temperatures and depths. These data are the first to predict spawning of a wild marine teleost from accelerometry data and a critical component of understanding the ecology of mahi.

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Abstract
1 - 2:  Fails to describe work; inconsistent with talk; grammar and spelling errors.                                                                                                                    3 - 5:  Unclear; uninspiring; few errors.                                                                                                                                                       6 - 8:  Reasonable summary; interesting; minimal errors.                                                                                                                      9 -10: Easy to follow; inspiring text; very consistent with talk; no major errors.
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Introduction
1 - 2:  Lack of structure; audience feels lost; provides too much or too little background.                                                                                                      3 - 5:  Difficult to follow; inadequate information.                                                                                                                                      6 - 8:  Coherent; explanations could be improved; adequate information.                                                                                                                                       9 -10: Easy to follow; well structured; provides correct amount of background information for audience.
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Methods
1 - 2:  No explanation of methods; audience feels lost.                                                                                                                           3 - 5:  Difficult to follow; insufficient explanation of methods.                                                                                                                                      6 - 8:  Coherent but holes in methodology.                                                                                                                                               9 -10: Methodology clearly explained.
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Results (if applicable) and Discussion
1 - 2:  Unable to explain data; presentation of data is poor. Talk lacks conclusions.                                                                                                                                                                      3 - 5:  Incomplete results; graphs used ineffectively. Inadequate conclusions drawn from data.                                                                                                                                                                                                                   6 - 8:  Presentation of results could be improved; adequate graphs. Clear conclusions; demonstrates understanding.                                                                                                                        9 - 10: Great presentation of data; graphs appropriately explained. Well organized discussion; interprets the results in the context of relevant work.
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Ability to Communicate Importance of Research
1 - 2:  Unable to communicate importance of research and big picture ideas.                                                                                            3 - 5:  Importance of research unclear and not emphasized.                                                                                                                                                                                                                      6 - 8:  Places the research in the context of big picture ideas but leaves room for improvement.                                                                                        9 - 10:  Strong ability to communicate importance of the research and excites the audience.
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Acknowledgements
1 - 2:  Absent.                                                                                                                                                                                                  3 - 5:  Brief or incomplete.                                                                                                                                                                             6 - 8:  Adequate but does not go beyond the minimum.                                                                                                                              9 -10: Well thought out and describe contributions from both funding sources and individuals.
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Preparedness and Presentation Skills
1 - 2:  Very rushed; poor voice projection/eye contact; unprepared; reads entirely off slides.                                                                                                3 - 5:  Somewhat rushed; difficult to hear; poor eye contact; somewhat prepared.                                                                                                    6 - 8:  Reasonable pace/voice projection/eye contact; adequate preparation.                                                                                                                                                                                                    9 -10: Appropriate pace/voice projection/eye contact; well prepared; uses slides appropriately for guidance.
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Quality of Slides
1 - 2:  Dense text; unreadable figures; color scheme hinders readability.                                                                                             3 - 5:  Occasional use of dense text and unreadable figures; slide organization is poor.                                                                                            6 - 8:  Appealing slide design with appropriate text; readable figures; organized presentation.                                                                                                                                                                                              9 -10: Slides used extremely effectively; creative representation of material; easy to read.
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Ability to Answer Questions
1 - 2:  Unable to interpret or answer audience questions.                                                                                                                     3 - 5:  Difficulty answering most questions; fails to demonstrate understanding of topic.                                                                                          6 - 8:  Answers most questions well; adequate understanding of topic.                                                                                                                                                                                            9 -10: Answers all questions clearly and concisely; outstanding understanding of topic.
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