Department of Biological Sciences

https://www.univ-soukahras.dz/en/dept/bio

Lecturer	Ghouzala GOUASMIA
Information	Master - Aquatic Ecosystems Department of Biological Sciences Website : https://www.univ-soukahras.dz/en/module/3319 Semester : S1 Unit : UEF3 Credit : 4 Coefficient: 2
Content	Chapter 1 : 1. Dissolved inorganic constituents (minerals) of seawater 1.1. Major constituents 1.2. Trace elements 2. Ionic composition of continental waters 3. Precipitation of chemical species 3.1. Concept of salinity 3.2. Relationship between Salinity and Chlorinity 3.3. Salinity Distributions Chapter 2 : 1. Gases dissolved in water 1.2. Dissolution of atmospheric gases in water 1.2.1. Oxygen: has. The origin b. Factors influencing dissolved oxygen content vs. Distribution of dissolved oxygen 1.2.2. The carbon dioxide system - Bicarbonates - Carbonates: CO2 – HCO3- - CO3-- has. pH b. Alkalinity or alkaline reserve: vs. Dissolution and precipitation of carbonates: 1.2.3. Nitrogen: Chapter 3: 2. Dissolved mineral salts: 2.1. Nitrogen: a) Denitrification b) Nitrification vs. Distribution of Dissolved Inorganic Nitrogen 2.2. Dissolved inorganic phosphorus has. Assimilation and regeneration of phosphorus: b. Seasonal and vertical variations of Phosphorus 2.3. Silicon Dissolved in Sea Water 2.3.1. Dissolved forms and biological significance 2.3.2. Vertical and seasonal variations Chapter 4. 1. Biological Classification of Water Components: 1.1. Biolimiting elements: 1.2. Biointermediate elements: 1.3. Non-biolimiting elements: Chapter 5: 1. Biogeochemical cycle 1.1. Recycled Elements: 1.2. Non-recycled elements Chapter 6 1. Trace metals 1.1. Metals 1.2. The Metalloids 1.3. Alkali Metals 1.4. Alkaline Earths 1.5. Essential Metals 1.6. Non-essential or toxic metals 2. Trace metals and biological activity 3. Assimilation of Trace Metals: 4. Control of Trace Metals 4.1. Biological Control 4.1. Inorganic Control
Evaluation	Field trip + Individual report