Adrian Jordaan Research Associate Ph.D., 2006, University of Maine E-mail: Adrian.Jordaan@stonybrook.edu Historical ecology, ecosystems, fisheries, oceanography, global change

Research Interests

I am interested, in general, with (1) how growth and survival are influenced by environmental variables, temperature in particular, and (2) how structure and function of ecosystems is related to temporal and spatial parameters.

My early research focused on the ecology of larval Atlantic cod. Using laboratory culturing of eggs, larvae and juveniles, I focused on costs of fast growth in early life, susceptibility to starvation, and temperatures that support optimal growth and high survival. The research was geared towards improving the aquaculture of cod and contributing knowledge of recruitment dynamics for fisheries management.

Working on cod during the 1990's during a well documented loss/reduction of fish populations was recognized, convinced me of the relevance of multi-species, ecosystem/area- based and adaptive management concepts. I have focused on using multiple survey datasets and multivariate analyses to determine biological structure at different scales and how it is related to different physical drivers. The purpose is to assign key variables that determine ecological structure across a variety of habitats. Those variables can be used to forecast possible changes in ecological structure that could accompany changes in the environmental factors (climate) as well as help design no-take reserves and area-based adaptive management to appropriately reflect ecological gradients and heterogeneity.

I started at SoMAS in the laboratory of Dr. David Conover analyzing three surveys; 1) a long-term (25year+) beach seine survey of the abundance of fishes in the Hudson River estuary, focusing on young-of-the-year striped bass, 2) a trawl survey of the distribution and abundance of juvenile sturgeon on the continental shelf of New York state waters, and 3) the NMFS length frequency database.

In 2008, I began to work with Dr. Michael G. Frisk on a variety of projects including Ecopath-Ecosim modeling of Long Island ecosystem(s), ecology of winter flounder, and two funded Atlantic sturgeon projects set up to determine movement patterns and devise an effective area-based management strategy using acoustic telemetry and modeling.

Probably the most rewarding work of late is a historical ecology project funded by a Mia J. Tegner Memorial Research Grant in Marine Historical Ecology and Environmental History. This work included graduate student Carolyn Hall, Michael Frisk and a large number of collaborators, details are available at http://www.GOMHER.org and the first publication is listed below - Hall et al. 2011.

Publications

Dunton, K.J., D. Chapman, A. Jordaan, K. Feldheim, S. O'Leary, K.A. McKown and M.G. Frisk. (In Press) A fisheries independent genetic mixed-stock analysis of Atlantic sturgeon (Acipenser oxyrinchus): evidence for coast-wide consequences of bycatch and benefits of area protection. Journal of Fish Biology

Wuenschel, M.J., K.W. Able, J.A. Buckel, J.W. Morley, T. Lankford, A. C. Branson, D.O. Conover, D. Drisco, A. Jordaan, K. Dunton, D.H. Secor, R.J. Woodland, F. Juanes, D. Stormer. (In Press) Recruitment patterns and habitat use of young-of-the-year bluefish along the United States east coast. Reviews in Fisheries Science.

Nuttall, M.A., A. Jordaan, R.M. Cerrato, M.G. Frisk. 2011. Identifying 120 years of decline in ecosystem structure and maturity of Great South Bay, New York using the Ecopath modelling approach. Ecological Modelling 222: 3335-3345.

Jordaan, A., J. Crocker and Y. Chen. 2011. Linkages among physical and biological properties in tidepools on the Maine Coast. Environmental Biology of Fishes. 92(1): 13-23.

Hall, C.J., A. Jordaan and M.G. Frisk. 2011. The historical influence of dams on diadromous fish habitat with a focus on river herring and hydrologic longitudinal connectivity. Landscape Ecology 26(1): 95-107.

Dunton, K.J., A. Jordaan, M.G. Frisk, and D.O. Conover. 2010. Marine distribution, abundance, and habitat of Atlantic Sturgeon Acipenser oxyrinchus oxyrinchus using fishery independent surveys. US Fisheries Bulletin 108:450-465.

Jordaan, A., Chen, Y., Townsend, D.W. and S. Sherman 2010. Identification of ecological structure and species relationships along an oceanographic gradient in the Gulf of Maine using multivariate analysis with bootstrapping. Canadian Journal of Fisheries and Aquatic Sciences 67(4): 701-719.

Jordaan, A. 2010. Fish assemblages spatially structure along a multi-scale wave energy gradient. Environmental Biology of Fishes. 87(1): 13-24.

Kling, L. J., Muscato Hansen, J. and A. Jordaan. 2007. Growth, survival and feed efficiency for post-metamorphosed Atlantic cod (Gadus morhua) reared at different temperatures. Aquaculture 262(2-4): 281-288.

Jordaan, A., Hayhurst, S. E., and L. J. Kling. 2006. The influence of temperature on the stage at hatch of laboratory reared Atlantic cod (Gadus morhua) and implications for comparisons of length and morphology. Journal of Fish Biology 68, 7–24.

Jordaan, A. and J.A. Brown. 2003. The risk of running on empty: the influence of age on starvation and gut fullness in larval Atlantic cod (Gadus morhua). Canadian Journal of Fisheries and Aquatic Sciences. 60 (10): 1289-1298.

Jordaan, A. and L.J. Kling. 2003. Determining the optimal temperature range for Atlantic cod (Gadus morhua) during early life. In: H.I. Browman and A.B. Skiftesvik (Eds.). The Big Fish Bang. Proceedings of the 26th Annual Larval Fish Conference. Pp: 45-62. Institute of Marine Research, Bergen, Norway. Online at: http://www.fishlarvae.com/e/Book_Reader.asp?pg=/e/BigBang/Jordaan.pdf&pgid=223

Callan, C., Jordaan, A. and L.J. Kling. 2003. Reducing Artemia use in the culture of Atlantic cod (Gadus morhua). Aquaculture 219 (1-4): 585-595.