About This Blog

They say if you have to repeat the same task more than a three times write a function, and if you have explain the same material more than three times write a blog. In that spirit, most of these posts are my solutions to problems that I’ve frequently had to explain to myself or others, mostly in the form of longer vignettes. These aren’t intended to be definitive “answers” to a problem, but rather illustrations of the approach that I chose to take. Hopefully these examples help you with your research, or at least spark conversations about better approaches.

My work is mostly in fisheries, so many of the posts will be demonstrations of data-science tools that I’ve had to use to solve fisheries-related problems. Others will be discussions of papers and ideas in fisheries and natural resource management, and when time allows I’m hoping to squeeze in some general music-related data-science geekery.


I develop data-driven tools and ideas to help manage marine resources. My current projects include using the behavior of fishermen to predict the abundance of fish, estimating the conservation impacts of marine protected areas, and integrating economic information into data-limited stock assessments. Other projects include helping design and teach fisheries management strategies, looking at the factors that help make fisheries management work, and researching the state of global marine resources.

I received my B.S. from the University of Miami, and my Master’s in Environmental Science and Management from the Bren School at UC Santa Barbara. After that I worked as a research scientist for the Sustainable Fisheries Group for several years, before returning to the Bren School where I’m currently a PhD candidate.


Costello, Christopher, Daniel Ovando, Tyler Clavelle, C. Kent Strauss, Ray Hilborn, Michael C. Melnychuk, Trevor A. Branch, et al. 2016. “Global Fishery Prospects Under Contrasting Management Regimes.” Proceedings of the National Academy of Sciences 113 (18): 5125–9. doi:10.1073/pnas.1520420113.

Costello, Christopher, Daniel Ovando, Ray Hilborn, Steven D. Gaines, Olivier Deschenes, and Sarah E. Lester. 2012. “Status and Solutions for the World’s Unassessed Fisheries.” Science 338 (6106): 517–20. doi:10.1126/science.1223389.

Dowling, Na, Jr Wilson, Mb Rudd, Ea Babcock, M Caillaux, J Cope, D Dougherty, et al. 2016. “FishPath: A Decision Support System for Assessing and Managing Data- and Capacity- Limited Fisheries.” In Assessing and Managing Data-Limited Fish Stocks, edited by Tj Quinn II, Jl Armstrong, Mr Baker, J Heifetz, and D Witherell. Alaska Sea Grant, University of Alaska Fairbansk.

Fogarty, Michael J., Andrew A. Rosenberg, Andrew B. Cooper, Mark Dickey-Collas, Elizabeth A. Fulton, Nicolás L. Gutiérrez, Kimberly J. W. Hyde, et al. 2016. “Fishery Production Potential of Large Marine Ecosystems: A Prototype Analysis.” Environmental Development, SI:Ecosystem-based lme mgt, 17, Supplement 1 (January): 211–19. doi:10.1016/j.envdev.2016.02.001.

Hilborn, Ray, and Daniel Ovando. 2014. “Reflections on the Success of Traditional Fisheries Management.” ICES Journal of Marine Science: Journal Du Conseil 71 (5): 1040–6. doi:10.1093/icesjms/fsu034.

Ovando, Daniel A., Robert T. Deacon, Sarah E. Lester, Christopher Costello, Tonya Van Leuvan, Karlynn McIlwain, Kent C. Strauss, et al. 2013. “Conservation Incentives and Collective Choices in Cooperative Fisheries.” Marine Policy 37 (0): 132–40. doi:10.1016/j.marpol.2012.03.012.

Ovando, Daniel, Dawn Dougherty, and Jono R Wilson. 2016. “Market and Design Solutions to the Short-Term Economic Impacts of Marine Reserves.” Fish and Fisheries, February, n/a–n/a. doi:10.1111/faf.12153.

Ovando, Daniel, Sarah Poon, and Christopher Costello. 2016. “Opportunities and Precautions for Integrating Cooperation and Individual Transferable Quotas with Territorial Use Rights in Fisheries.” Bulletin of Marine Science.

Rahimi, Shireen, Steven D. Gaines, Stefan Gelcich, Robert Deacon, and Dan Ovando. 2016. “Factors Driving the Implementation of Fishery Reforms.” Marine Policy 71 (September): 222–28. doi:10.1016/j.marpol.2016.06.005.

Rosenberg, A. A., M. J. Fogarty, A. B. Cooper, M. Dickey-Collas, E. A. Fulton, N. L. Gutiérrez, K. J. W. Hyde, et al. 2014. Developing New Approaches to Global Stock Status Assessment and Fishery Production Potential of the Seas. FAO Fisheries and Aquaculture Circular 1086. Food and Agriculture Organization of the United Nations.

Szuwalski, Cody S., Mauricio Castrejon, Dan Ovando, and Brandon Chasco. 2016. “An Integrated Stock Assessment for Red Spiny Lobster (Panulirus Penicillatus) from the Galapagos Marine Reserve.” Fisheries Research 177 (May): 82–94. doi:10.1016/j.fishres.2016.01.002.