Introduction -- Part I. Historical Perspectives -- Vertebrates of Upper Mesopotamia: Present Evidence and Archaeological Data -- Fishing Gears and Methods: A Comparison of Ancient Mesopotamia and Other Ancient Worlds -- Ichthyological Characteristics Available in the Fish Images Existed in the Art of the Ancient Mesopotamia -- The Effectiveness of Ancient Mesopotamian Medical Practices: The Example of šūšu-Licorice -- Part II. The Abiotic Aspects of the Tigris-Euphrates River System -- Management of Water Resources Using Storage Reservoirs -- Estimation of Irrigated Agricultural Area and Water Consumption in Iraq -- The Nature of Tigris-Euphrates Rivers Flow: Current Status and Future Prospective -- Streamflow Alteration Impacts with Particular Reference to the Lower Zab River, Tributary of the Tigris River -- Ecohydrology in Iraq: Challenges and its Future Pathways -- Oil Pollution in the Shatt Al-Arab River and its Estuary 1980-2018 -- Pesticides in the Waters, Sediments, and Biota of the Shatt Al-Arab River for the Period 1980-2017 -- Surface Water Salinity of the Euphrates, Tigris, and Shatt al-Arab Rivers -- Renewable Energy for Water-Energy Nexus in Euphrates and Tigris River Basin: A Literature Review -- Impacts of Dams on Aquatic Biodiversity, Fisheries, Fishes and Their Environment: Problems that Could Be Present in Iraq with Recommendations -- Water, Politics and Dams in the Mesopotamia Basin of the Northern Middle East: How Turkey Instrumentalises the South-Eastern Anatolia Project for Political, Military and Strategic Interests -- Dams and their Impacts on Fishes in Iran -- Part III. The Biotic Aspects of the Tigris-Euphrates River System -- Preliminary Review of the Aquatic Biodiversity in Al-Kahla River, Missan Province, Iraq -- Freshwater Fish Biodiversity in Iraq: Importance, Threats, Status, and Conservation Challenges -- Effect of Climate Changes on the Freshwater Biodiversity in the Mesopotamian Plain: Recommendations for Avoidance and Plans for the Future -- River Corridors as a Refuge for Freshwater Biodiversity: Basic Information and Recommendations to the Policymakers for Possible Implications in Iraq -- Biodiversity of Fungi in Aquatic Environment of Iraq -- Potability of Drinking Water in Basra-Iraq -- Algal Studies in Iraqi Inland Waters. A Review -- The Distribution of Epilitic Diatoms in the Turkish Part of the Tigris-Euphrates River Basin -- Plant Biodiversity in Shatt Al-Arab Estuary and Ecological Variations -- Medicinal Plants of Shatt al-Arab River and Adjacent Area -- The Role of Plants as a Canopy in the Inland Waters: Basic Information for Application in Iraq -- The Zooplankton Fauna of the Turkish Part of the Euphrates-Tigris River Basin -- Kinds and Distribution of Icthyoplankton in Shatt Al-Arab River -- Rotifer Diversity in Iranian Waters: A Review -- Biodiversity of the Freshwater Amphipods in Iran -- The Freshwater Molluscs of the Mesopotamian Plain -- Freshwater Annelida of Iraq -- A Critical Checklist of the Inland Fishes Native to the Euphrates and Tigris Drainages -- Fish Fauna of Shatt al-Arab River, Basrah, Iraq: A More than Quarter a Century of Changes -- The Common Carp, Cyprinus carpio: Effect on the Environment and the Indigenous Fish Species in Iraq -- The Good and the Bad in Releasing the Grass Carp Ctenopharyngodon idella in the Freshwater System: Recommendations for the Policymakers in Iraq -- The Avifauna of Tigris and Euphrates River Basin -- The Feasible Approaches to Assist Migratory Birds Visiting the Southern Reaches of Mesopotamia -- A Proposal for Establishing Bird Observatory Centre in the South of Iraq -- The Potential Role of Waterbirds as a Vector in Dispersing Invertebrates and Plants in the South of Iraq -- The Wild Mammals of the Tigris and Euphrates Rivers Basin -- The Amphibians and Reptiles of Euphrates and Tigris Basin -- A Preliminary Pictorial Guide to the Herpetofauna of Tigris and Euphrates River Basin -- Policy Guidance for Sustainable Aquaculture in the Inland Waters of Iraq -- How Possible to Use the Desert Area in Iraq for Aquaculture Industry: Basic Facts and Recommondations -- Aquaculture Industry in Iraq: Past, Present, and Future Perspectives -- Towards an Improved Tilapia Farming in Iraq: Recommendations for Future Application -- Information and Recommendations of Aquaculture Stress and its Source in Hatcheries: The Iraqi Aquaculture Industry Investors -- Exotic and Invasive Freshwater Fishes in the Tigris-Euphrates River System -- Part IV. Water Resources -- The Ecology and Modelling of the Freshwater Ecosystems in Iran -- Enhancing Rural Women's Participation in Fisheries in Iraq -- The Impact of Destructive Fishing Gear on the Fish Biodiversity in the Inland Waters of Iraq -- Evaluating Variations in Fisheries by Means of Fishers' Information: Suggested Methodology to Improve Small-Scale Fisheries in Rivers in Iraq -- A Possibility to Apply a Traditional Fisheries Enforcement Programme in the Inland Waters of Iraq -- Market-Resource Relations and Fish Seller Livelihood as Seen in Inland Waters of Iraq -- The Potential Impact of Deformities in Fishes upon Aquatic Production: Case of Iraq -- The Impact of some Social Taboos on Fisheries in Iraq -- Inland Water Fishes and Fisheries in Iran -- The Possibility of Introducing an Inland Fisheries Education in Iraq -- The Marine and Diadromous Fisheries of Iraq -- Part V. Stress of the Environment of the Two Rivers -- Fish Deformities in the Freshwater Fishes of Iraq: A Short Review and a Study Case on the Indian Catfish Heteropneustes fossilis -- The Phenomenon of Fluctuating Asymmetry: As Fish Welfare Indicator Represented by Case Study from the Freshwater Fishes of Iraq -- The Studies on Sediments Pollution by Different Types of Metals in Turkey -- Macroplastic and Microplastic in the Freshwater Environment of Southern Iraq: Evidences Obtained from Freshwater Fish Species -- Heavy Metals in Freshwater Invertebrates of Iran: A Review on the Bioaccumulation and Effects -- Fish Parasites of Tigris and Euphrates River Systems -- The Parasites of Fishes of the Euphrates and Tigris Rivers: Iraq and Turkey -- Ornamental Fishes: A Looming Danger for Inland Fish Diversity of Iraq -- Part VI. The Health of the Human Community Inhabiting Freshwater Zones -- Aquatic Snails as a Vector of Diseases to the Human in Iran -- Death by Drowning in Rivers in Iraq -- The Dangerous Catfish Species in the Freshwater System of Iraq: First Time Reports on Cases of Envenomation -- Fish Species of the Order Cypriniformes as a Source of Ichthyootoxin and Ichthyogallotoxin in Iraq: Cases Reports -- First Reports on Cases of Hallucinatory Fish Poisoning (Ichthyoallyeinotoxism) and Scombrotoxic Fish Poisoning in Iraq -- Part. VII. Conservation -- Freshwater Management and Conservation in Iran: Past, Present, and Future -- The Need of Biodiversity Conservation Strategies in Iraq: The State of Protected Areas -- Benthic Macroinvertebrates of the Tigris and Euphrates Rivers in Turkey -- Freshwater Ecosystem Conservation in Iraq: Recommendations for Management -- Utilising Phenotypic Difference to Regulate Protection Value: A Scheme for Application of a Novel Approach to the Inland Water of Iraq -- Hatchery-Reared Fish Stocks Released into the Wild: A Conservation Problem as Seen in a Case Study from Iraq -- Part VIII. Social Perspectives -- Is the Glass Half Empty or Half Full? An Appraisal of the Four Decades of Turkey's Southeastern Anatolia Project (GAP) -- Part IX. Food Security -- How Possible to Build Rice-Fish Farming in Iraq in order to Support Food Security Plan: Positive and the Negative Aspects -- The Importance of Non-commercial and Small-Sized Fish Species: A Proposal for an Additional Revenue to Iraq -- Sociocultural Aspects Influence Food Consumption Habits in Iraq: Management of Food Security -- A Preliminary Investigation of Determinants of Food Security in Rural Areas of Basrah Province, Iraq.