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Capt. Jeffrey W. Monroe -

Captain Monroe was the Director of Ports and Transportation for the City of Portland Maine, where he managed the Port of Portland, Portland’s municipal transportation system, and the Portland International Jetport (PWM). Prior to that, he was the Deputy Port Director for the Massachusetts Port Authority, Port of Boston. During his time in public service, Captain Monroe managed the development of the port and industrial facilities in both Portland and Boston. 


Since leaving public service, he has been engaged in over 65 port development projects throughout North America, including work for Halifax, NS; Argentia, NL; Eastport and Searsport, ME; Portsmouth, NH; Gloucester, Fall River, Salem, and New Bedford, MA; Davisville and Providence, RI; New London, CT; Muscatine, IA; Anchorage, AK; Victoria, BC; Port of New York/New Jersey; Port of Fernandina Beach, FL; Louisiana International Gulf Transfer Terminal, LA; Harlingen, TX; Port of South Louisiana, LA; Port of Rosedale, MS; and numerous other ports that have looked to develop property, marine terminals, and industrial properties.


Cassia Bomer Galvao - 

Dr. Galvao is an Economist by training and in 2016 she completed her PhD in Social Sciences also at the Catholic University of Sao Paulo. Her dissertation was about port policies and development in the context of economic development. While developing her academic career, she has worked in the private sector and has 10+ years of experience in Marketing & Sales Division of multiple international container liners and freight forwarders. During her PhD studies, she was selected to participate at Fulbright Foundation Scholarship Program in partnership with CAPES and so she carried out her research at the Department of Maritime Administration of Texas A&M University at Galveston (MARA/TAMUG).


Dr. Galvao has also experience of 10+ years in teaching International Economics; Global Entrepreneurship; Maritime Shipping & logistics; Port Economics & Governance; Marketing Transportation Services. She was recently nominated member of the Ports and Channels Committee of the Marine Group at TRB (Transportation Board) and serves at the IAME (International Association of Maritime Economists) Secretariat as webmaster.

Aimee Andres -

Aimee Andres, Executive Director of the Inland Rivers, Ports and Terminals (IRPT). IRPT is a trade association for the nation’s inland waterway, port and terminal professionals. She has extensive contact with the 300+ members of the Association in order to identify points of interest or concern and to optimize their benefits. Representing the interests of members in each river basin, Aimee encourages continued cooperation with local, state and federal authorities, as well as other waterway associations to promote the value of the inland waterway system.

Aimee is an Accredited Maritime Port Executive awarded by the International Association of Maritime Port Executives. She serves on the Board of Advisors for the International Association of Marine Port Executives and has previously served on the Board of Directors for the National Waterways Conference. In 2021, she was awarded IAMPE’s Leadership Award for her contributions to the success and growth of the inland port and maritime industry. In 2018, she was awarded the ‘40 under 40’ recognition by the inland river industry.

Steve Ribuffo -

Steve Ribuffo is the Director of the Port of Alaska, an Enterprise Department of the Municipality of Anchorage.  In this capacity, he is responsible for overseeing the day-to-day business operations of the Port; interacting as needed with tenants, the U.S. Coast Guard, the military and any new business prospects interested in operating out of the Port.  He has been with the Port since August 2007, when he came aboard as Deputy Port Director.  Mr. Ribuffo has been Port Director since June 2014.

Steve retired from the United States Air Force as a Colonel, having served 30 years on active duty.  A native New Yorker, he graduated from Manhattan College with a Bachelor of Science degree in Marketing.  He also has an MBA from Golden Gate University, and a Masters of Science in Logistics Management from the Air Force Institute of Technology.  He is an Accredited Maritime Port Executive. 

 Steve is a member of the Board of Directors of the Anchorage Downtown Partnership and the Anchorage Economic Development Corporation Investors’ Council.  He is Vice-Chair of the International Association of Maritime and Port Executives’ Advisory Board.  He is Regional Representative for Alaska on the Association of Pacific Ports’ Executive Committee.  He serves on the University of Alaska – Anchorage’s Global Supply Chain Management Curriculum Advisory Committee and is also an Adjunct Professor of Logistics and Supply Chain Management. 


Captain Thomas Garrett -

With an impressive forty year career, Captain Thomas Garrett has been exposed to almost all aspects of shipping, while interfacing with terminals to ensure smooth and timely operations. He has received training and experience as an incident manager, marine investigator, marine surveyor, and trainer / instructor.  


Coming ashore he worked as port Captain, interfacing with facility staff, regulatory officials, vessel staff and office staff.  He served on committees responsible for the development of regulation under the Oil Pollution Act of 1990. He also assisted companies in developing facility and vessel oil spill response plans and conducted training and annual drills to ensure compliance with individual plans. Later, Captain Garrett assisted with the development of facility and vessel emergency response plans as regulations advanced. He introduced, developed, and trained shore side & shipboard staff under the ISM Code and ISO 9000 & 14000 Standards and performed initial, annual and renewal audits under each. Following 9/11/2001, Captain Garrett developed vessel and facility security plans.  He conducted initial assessments, annual audits and conducted drills, while working extensively with facilities and vessel owners / operators to develop understanding with regulations and to ensure compliance. 

Mark Dubina -

Graduate of Florida State University, with extensive additional specialized training in law enforcement operations and seaport security. Mr. Dubina is a Certified Law Enforcement Officer, Certified Law Enforcement Instructor, Certified Fraud Examiner, Maritime Port Executive™, Certified Maritime Educator-IAMPE.  Mark Dubina currently serves as Vice President of Security for Port Tampa Bay.

Mr. Dubina has a combined 32 years of law enforcement and public sector management experience. Mr. Dubina’s current duties include management of all aspects of security operations for the Port, Florida’s largest and most diversified port. Mr. Dubina serves on the board of the Tampa Bay Urban Area Security Initiative (UASI) Working Group, the State of Florida Domestic Security Oversight Council Critical Infrastructure Working Group, the Tampa Bay Regional Domestic Security Task Force and the Area Maritime Security Committee. Mr. Dubina is also a board member of the Tampa Bay Chapter of the Association of Certified Fraud Examiners.  Prior to his current position, Mr. Dubina was the Chief of Investigations for the Florida Department of Law Enforcement (FDLE) in Tampa. He has extensive experience organizing and directing investigations, supervising special events and coordinating security details for visiting dignitaries.

Horacio Salerno  -

Horacio Salerno is a Spanish chartered Civil Engineer (MSc), a member of PIANC, and certified by UNCTAD as a course developer and trainer. He holds a Master’s degree in Port Management from the University of Antwerp (Belgium) and completed the Port Engineering Course organized by JICA in Japan.

He was Spain’s representative in PIANC’s Working Group producing the “Sustainable Ports – A Guide for Port Authorities”; expert member of the Evaluation Committee of the Green Port Award System for the Asia-Pacific Economic Cooperation (APEC); Maritime Engineering Business and Practice Leader for the Europe Region for Arup; former Professor of Port Design at the Port Engineering Graduate School (UBA); former Joint Professor of River and Sea Works (UTN-BA).

Horacio is a port consultant focused on maritime and river transport with particular emphasis on port issues. Throughout his forty years of professional career, he has been involved in the planning, design, construction, and assessment of ports and specialized terminals of all types (containers, general cargo, ro-ro, dry and liquid bulks, cruise, fishing, and marinas) with references in more than 60 different countries of five continents.

Dale Murray -

Dale Murray brings great experience in the Inland River industry to our Inland Marine Port Management course. He worked at the senior management level for over fifteen years with both Watco Terminal and Port Services and Kinder Morgan Terminals on the Mississippi, Tennessee, and Ohio Rivers, as well as the Tennessee-Tombigbee Waterway.


Prior to moving into senior management roles, he worked as the terminal manager of the Port of Memphis in Memphis, TN and as the Assistant General Manager of International Marine Terminals in Plaquemines Parrish, LA. Dale currently works as the Director of Asset Management for Watco, LLC, in addition to serving as a colonel in the Alabama Army National Guard. During one of his military assignments, he helped develop alternate military transportation solutions on the Danube River in Eastern Europe. Dale also provides limited consulting services for public and private river terminals through Alabama Freight and Logistics, LLC.

Dale is an Accredited Maritime Port Executive (AMPE), certified Inland Marine Port Executive (IMPE), and a Certified Maritime Educator (CME). He holds a Masters in Business Administration from the University of Memphis, a Masters in Strategic Studies from the US Air Force’s Air War College, a Masters in Military Studies from American Military University, and a Bachelors in Aviation Management from Auburn University. He is currently pursuing a PhD in International Relations through the University of Alabama. Dale currently lives in Birmingham, AL.

Donald Maier -

Dr. Maier has a diverse background in the logistics and supply chain industry. He was also the Dean for graduate and undergraduate programs of International Business & Logistics at Maine Maritime, and Professor at the University of St. Francis in Joliet, IL. He has received tenure at three universities and earned Teacher of the Year at USF. Recently, Dr. Maier was featured on CNN, CNN-I, ABC-San Francisco, San Francisco Chronicle, and Popular Mechanics as the subject matter expert on the M/S Ever Given and the volatility in the global supply.


His professional career included roles in the logistics and supply chain management teams at FedEx, Office Depot, Penske Logistics, Monsanto, and Merisant (division of Monsanto).  He was a contractor the Will County Health Department’s Emergency Response Team where he designed and managed the distribution of pharmaceutical supplies during the H1N1 incident. Dr. Maier was instrumental in facilitating the IAMPE’s first academic partnership with the Loeb-Sullivan school at Maine Maritime Academy. Always the adventurous type, he and his family have had the amazing opportunity to live and work in the Midwest, both Coasts, in urban and rural areas.

Gregory Oltmanns -

Mr. Oltmanns has served the maritime industry for 43 years.  He has held management positions with international shipping lines; SeaLand Services, Maersk/APM Terminals and most recently Eimskip, where he was General Manager of Operations for the Icelandic container line.


Greg has worked in terminals from Florida to Maine as well as corporate offices.  He has been responsible for terminal, stevedoring, maintenance and warehouse operations. Greg has managed the areas of safety, equipment control, customer service, finance and accounting, vessel agency and labor relations.  While executing his regular duties, he has been involved in the design, construction and renovation of different aspects of the terminals and related buildings.   Greg has negotiated contracts with local Unions, Port Authorities and government entities while building a strong and beneficial relationship with labor.  


He is accredited by the IAMPE as an Accredited Marine Port Executive and is a certified instructor. He has served as a member of many local industry committees which include Trustee of the ILA/GSA Pension and Welfare Fund.   He is currently a member of ILA Local 1475, Clerks Checkers and Stevedores and a consultant through his company, Improved Process Solutions.

Greg has always been interested in the development of the maritime industry’s future, which includes technology and people. He was responsible for developing and implementing an automated parking system for the container terminal in 1991. In 1996, Greg worked with NASA engineers developing and presenting to senior management, as well as senior officials with U.S. Customs, a tracking system for logistical assets using two communicating Low Earth Orbiting (LEO) satellites.

Greg lives in Savannah, Ga. with Tina, his wife of 43 years and is close to his son, daughter-in-law and 2 ½ year old grandson. An optimist at heart, he lives by the words of Jazz trumpeter Miles Davis – “I learned something yesterday, I learned something today – my God, I can’t wait for tomorrow”. 

Robert Callahan -

Robert (Bob) Callahan, CDR, USNR (Ret.) AMPE Association of Maritime and Port Executives, Marine Transportation, SUNY Maritime College, FEMA NIMS 100,200, and 700, IMDG Hazmat Instructor and Consultant, Leadership/Supervisor Training.


Commander Callahan’s experience includes start up operations on foreign shores, tugboat, cruise, cargo vessel operations, as well as terminal development and growth. Commander Callahan is additionally versed in vessel chartering and cargo brokerage. He has extensive experience in hazmat operations, including handling of exotic, dangerous goods such as explosives and rocket fuels. Commander Callahan has conducted classes as far North as Philadelphia and South as Barbados and Suriname. He has successfully conducted and certified over 200 students in Tampa Port including CBP officers, HCSO, Port Security, and terminal operators.

Rich Diffley
Rich Diffley has spent his entire 20+ year career managing safe, efficient, profitable, and environmentally sound terminal business operations, specializing on the inland river system. In 2008 after 10 successful years running terminals in the LTL trucking industry, he became Director of Operations for Lange Stegmann Fertilizer Company. Under his 10-year tenure, Lange grew to be one of the most respected and largest fertilizer transload facilities on the inland river system. This facility handled well over one million tons trans loading barges from the river to 110,000 tons of indoor storage, to loading out over 8,000 rail cars and 8,000 trucks per year. In 2020 he moved to Florida and managed multiple stevedoring operations for Logistec Gulf Coast. Rich sat on the Board for IRPT (Inland Rivers Ports and Terminals) organization from 2012 to 2020 representing the upper Mississippi region. He was also one of the original members of the St. Louis Regional Freightway “Needs Analysis Committee” working with both public and private business leaders in the St. Louis region to identify infrastructure improvements that would help grow an efficient freight network in the St. Louis Region.

Alaina Scheuchzer - 

Alaina Scheuchzer is an Assistant Professor at Maine Maritime Academy in the Loeb-Sullivan school of Business where she has taught since 2014. Prof. Scheuchzer has worked in the maritime industry since 2005. Initially positions onboard commercial shipping vessels as a 3rd Assistant Engineer and then in the Boston area as a technical superintendent with V.Ships USA., LLC a world leader in Vessel Management. She has experience with industrial manufacturing and global sourcing and supply chain from her time with International Paper in Savannah, GA. She teaches organization development and change, global sourcing and procurement negotiations, maritime and port management, and industrial manufacturing.

She holds an M.S. in Global Logistics & Maritime Management and a B.S. in Marine Engineering Operations from Maine Maritime Academy, an Accredited Maritime Port Executive professional certification from the International Association of Maritime and Port Executives (IAMPE) and is an IAMPE Certified Instructor in port and terminal management. She is also a member of the Board of Advisors of the IAMPE and is on the Associations Education Committee.

Prof. Scheuchzer currently resides in Bucksport, ME with her husband and two children.

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