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Dr. Appeldoorn received his BS in Environmental Science from Rutgers University in 1974 and his PhD in (Biological) Oceanography in 1980 from the University of Rhode Island. Since 1981 he has been on the faculty of the Department of Marine Science, University of Puerto Rico – Mayagüez, currently at the rank of Professor. He has graduated 13 MS and 11 PhD students during that tenure. Within the general field of fishery biology, Dr. Appeldoorn has conducted extensive work on the biology and fishery of the queen conch and of coral reef fishes. Recent research has focused on spawning aggregations, fish larval dispersal, and the distribution and movements of coral reef fishes and their relationship to habitat distributions over the seascape. Particular emphasis is given to developing biological design criteria for marine reserves and the use of reserves in fishery and coastal zone management. He has extensive experience throughout the Caribbean, conducting research and fishery assessments in Venezuela, Colombia, Belize, Jamaica, Dominican Republic, US Virgin Islands and in the waters off the Lesser Antilles. A longstanding member of the Board of Directors of the Gulf and Caribbean Fisheries Institute and the Science and Statistics Committee of the US Caribbean Fishery Management Council, Dr. Appeldoorn is committed to enhancing management with the best scientific information.

  Please note that only publications relevant to mesophotic reefs are indexed.

	Theme section on 'Mesophotic Coral Ecosystems: Characterization, Ecology, and Management' | article Hinderstein LM, Marr JCA, Martinez FA, Dowgiallo MJ, Puglise KA, Pyle RL, Zawada DG, Appeldoorn R (2010) Coral Reefs 29:247-251
	Geomorphology and benthic cover of mesophotic coral ecosystems of the upper insular slope of southwest Puerto Rico | article Sherman C, Nemeth M, Ruíz H, Bejarano I, Appeldoorn R, Pagán F, Schärer M, Weil E (2010) Coral Reefs 29:347-360
	Mesophotic coral ecosystems under anthropogenic stress: a case study at Ponce, Puerto Rico | article Appeldoorn R, Ballantine D, Bejarano I, Carlo M, Nemeth M, Otero E, Pagán F, Ruiz H, Schizas N, Sherman C, Weil E (2016) Coral Reefs 35:63-75
	Fishes associated with mesophotic coral ecosystems in La Parguera, Puerto Rico | article Bejarano I, Appeldoorn MN (2014) Coral Reefs 33:313-328
	Theme section on mesophotic coral ecosystems: advances in knowledge and future perspectives | review Loya Y, Eyal G, Treibitz T, Lesser MP, Appeldoorn R (2016) Coral Reefs 35:1-9
	Cruise Report R/V Seward Johnson. A submersible survey of the continental slope of Puerto Rico and the U. S. Virgin Islands | report Nelson WR, Appeldoorn RS (1985)
	Large-scale invasion of western Atlantic mesophotic reefs by lionfish potentially undermines culling-based management | article Andradi-Brown DA, Vermeij MJA, Slattery M, Lesser M, Bejarano I, Appeldoorn R, Goodbody-Gringley G, Chequer AD, Pitt JM, Eddy C, Smith SR, Brokovich E, Pinheiro HT, Jessup ME, Shepherd B, Rocha LA, Curtis-Quick J, Eyal G, Noyes TJ, Rogers AD, Exton DA (2017) Biol Invasions 19:939–954
	In situ Tagging of Nassau Grouper Epinephelus striatus Using Closed-Circuit Rebreathers at a Spawning Aggregation in Puerto Rico | article Tuohy E, Nemeth MI, Bejarano I, Schärer MT, Appeldoorn RS (2015) Mar Technol Soc J 49:115-123
	Population connectivity of the plating coral Agaricia lamarcki from southwest Puerto Rico | article Hammerman NM, Rivera-Vicens RE, Galaska MP, Weil E, Appeldoorn RS, Alfaro M, Schizas NV (2018) Coral Reefs 37:183-191
	Use of Mixed-gas Rebreathers to Access Fish Assemblages in Mesophotic Coral Ecosystems (MCE) off La Parguera Shelf-Edge, Puerto Rico | chapter Bejarano I, Nemeth M, Appeldoorn RS (2011) in: (Gulf and Caribbean Fisheries Institute) by
	Puerto Rico | chapter Appeldoorn RS, Alfaro M, Ballantine DL, Bejarano I, Ruiz HJ, Schizas NV, Schmidt WE, Sherman CE, Weil E (2019) in: Mesophotic Coral Ecosystems (Springer) by Loya Y, Puglise KA, Bridge TCL
	Intra-annual variation in mesophotic benthic assemblages on the insular slope of Southwest Puerto Rico as a function of depth and geomorphology | article Appeldoorn RS, Ballantine DL, Carlo M, Cruz Motta JJ, Nemeth M, Ruiz HJ, Schizas NV, Sherman CE, Weil E, Yoshioka PM (2021) Front Mar Sci 8:732926