Sasho Trajanovski & Teodora Trichkova — The Hydrobiological Institute Ohrid as a Centre of Long-term Hydrobiological Studies in Lake Ohrid Region, Republic of Macedonia — 5-10. PDF
Silvana P. Vasilevska, Elizabeta M. Veljanoska-Sarafiloska & Lence S. Lokoska — Water Quality of the Rivers in the Prespa Region in 2014 — 11-18. PDF
Lence S. Lokoska, Elizabeta M. Veljanoska-Sarafiloska & Angela M. Vasileska — Microbiological and Chemical Water Quality of Lake Ohrid and its Tributaries in 2014 — 19-24. PDF
Elizabeta M. Veljanoska-Sarafiloska, Lence S. Lokoska & Suzana B. Patceva — Water Quality of Lakes Ohrid and Prespa Based on Physical-chemical and Biological Parameters in 2013-2014 — 25-32. PDF
Angela M. Vasileska & Lence S. Lokoska — Microbial Phosphatase Activity as an Indicator of Water Quality in Tributaries and Littoral Area of Lake Ohrid in the Period 2013-2014 — 33-37. PDF
Tatjana Loshkoska, Sasho Trajanovski, Konstantin Zdraveski, Suzana Patceva, Lirika Kupe, Elizabeta Veljanoska-Sarafiloska, Sonja Trajanovska & Biljana Budzakoska Gjoreska — Preliminary Assessment of the Ecological Status of Some Tributaries of Lake Ohrid (Macedonian Part) Based on Diatom Community according to the Water Framework Directive — 39-44. PDF
Sonja Trajanovska, Marina Talevska, Biljana Budzakoska Gjoreska & Sasho Trajanovski — Macrophyte-based Assessment of Nutrient Pollution of Lake Prespa, Republic of Macedonia — 45-49. PDF
Suzana B. Patceva & Jovica V. Leshoski — Phytoplankton Composition of Lake Prespa, Republic of Macedonia — 51-56. PDF
Orhideja Tasevska, Dafina Guseska & Goce Kostoski — A Checklist of Monogonont Rotifers (Rotifera: Monogononta) of Lake Ohrid, Republic of Macedonia — 57-62. PDF
Dafina Guseska, Orhideja Tasevska, Goce Kostoski & Dimitar Guseski — Biomass Dynamics of Pelagic Crustacea in Lake Ohrid, Republic of Macedonia, in the Period 2000-2009 — 63-67. PDF
Marina Talevska & Sonja Trajanovska — Belts of Macrophyte Vegetation in Lake Ohrid — 69-73. PDF
Biljana Budzakoska Gjoreska, Sasho Trajanovski, Sonja Trajanovska & Konstantin Zdraveski — Assessing the Status of Endangered Invertebrates from the Ancient Lake Ohrid: The Endemic Species Gocea ohridana Hadzisce, 1956 (Gastropoda: Hydrobiidae) — 75-80. PDF
Sasho Trajanovski, Konstantin Zdraveski, Sonja Trajanovska, Biljana Budzakoska Gjoreska, Elizabeta Veljanoska-Sarafiloska, Tatjana Loshkoska & Teodora Trichkova — Conservation of Velidab, the Biodiversity Hotspot in Lake Ohrid: Species Inventory and Site Valuation — 81-90. PDF
Sasho Trajanovski, Biljana Budzakoska Gjoreska, Lyubomir Kenderov, Sonja Trajanovska, Konstantin Zdraveski & Teodora Trichkova — Potential Threats to Benthic Macroinvertebrate Fauna in Lake Ohrid Watershed: Water Pollution and Alien Species — 91-98. PDF
Konstantin Zdraveski, Lazjon Petri, Sasho Trajanovski, Sajmir Beqiraj, Biljana Budzakoska Gjoreska, Sonja Trajanovska & Teodora Trichkova — First Contingent Valuation of the Endemic Species: Salmo letnica Karaman, 1924 (Actinopterygii: Salmonidae) and Gocea ohridana Hadzisce, 1956 (Gastropoda: Hydrobiidae) from Lake Ohrid — 99-106. PDF