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This is the complete lecture note for FAA407 Aquatic Environment Survey; climate change in fisheries and aquaculture. You can read it online below, open it in the full viewer, or download the PDF for offline study. It pairs with the course's video lectures, so you can read and watch together.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Course code: FAA 407 Course title: Aquatic Environment Survey; climate change in fisheries and aquaculture Course credit load: 2 Units Series 1: Aquatic Environment Survey and Resource Description Part 1.1 Visual survey and reconnaissance 1.1.1 Purpose of aquatic environment surveys 1.1.2 Location and mapping of water bodies 1.1.3 Surveying instruments and their maintenance Part 1.2 Water parameters and geology 1.2.1 Physical and chemical parameters of water 1.2.2 Geology and meteorology of aquatic environments Part 1.3 Description of aquatic resources and fisheries supported 1.3.1 Visual understanding of aquatic resources in local communities 1.3.2 Differences among water resources and the fisheries they support Introduction Aquatic environments form the foundation of fisheries and aquaculture, providing habitats, resources, and pathways that sustain both ecosystems and human livelihoods. Before any meaningful management or development can take place, it is essential to survey and describe these environments carefully. This Series introduces you to the methods and principles of aquatic environment surveys, helping you to appreciate the importance of accurate observation and documentation. The aim of this Series is to equip you with the knowledge and skills needed to conduct basic aquatic environment surveys, interpret water parameters, and describe the resources and fisheries supported by different water bodies.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS We shall commence this Series by exploring the purpose of visual surveys and reconnaissance, including the use of instruments and mapping techniques. Next, we will examine water parameters and geology, focusing on how physical and chemical characteristics influence aquatic systems. Finally, we will conclude by describing aquatic resources and highlighting the differences among water bodies and the fisheries they support. Series Learning Outcomes Upon completing this Series, you should be able to: SLO 1.1 define the purpose of aquatic environment surveys, SLO 1.2 explain how to locate and map water bodies during reconnaissance surveys, SLO 1.3 demonstrate the use and maintenance of basic surveying instruments, SLO 1.4 describe key physical and chemical parameters of water, SLO 1.5 analyse the influence of geology and meteorology on aquatic environments, SLO 1.6 explain how to visually identify aquatic resources in local communities, and SLO 1.7 evaluate differences among water resources and the fisheries they support. 1.1 Visual Survey and Reconnaissance 1.1.1 Purpose of aquatic environment surveys An aquatic environment survey is a systematic observation and documentation of water bodies and their surrounding features. The purpose is to gather baseline information about the physical, chemical, and biological characteristics of aquatic systems. Such surveys help in identifying resources, assessing potential for fisheries, and detecting challenges that may affect sustainability.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Aquatic environment surveys provide baseline information about the physical, chemical, and ______ characteristics of water bodies. Figure 1.1 Purpose of aquatic environment surveys 1.1.2 Location and mapping of water bodies Location and mapping involve identifying the geographical position of water bodies and representing them on maps. This process uses tools such as compasses, GPS devices, and topographic maps. Accurate mapping ensures that fisheries managers can plan effectively, monitor changes, and allocate resources appropriately. Mapping water bodies involves identifying their geographical position and representing them on ______.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Plate 1.1 Location and mapping of water bodies 1.1.3 Surveying instruments and their maintenance Surveying instruments such as levels, compasses, and GPS devices are essential for accurate data collection. Proper maintenance of these instruments ensures reliability and longevity. Maintenance practices include regular calibration, safe storage, and protection from moisture or dust. Surveying instruments such as levels, compasses, and GPS devices require regular ______ to ensure reliability.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Box 1.1 Surveying instruments and their maintenance Instrument Use Maintenance practice Compass Determines direction Keep dry and clean GPS device Maps location Regular software updates Level Measures elevation Calibrate periodically Pilot questions 1.1 Define aquatic environment survey. State one purpose of aquatic environment surveys. Mention one tool used in mapping water bodies. Identify one surveying instrument used in aquatic surveys. Explain why maintenance of surveying instruments is important. 1.2 Water Parameters and Geology 1.2.1 Physical and chemical parameters of water Water parameters are measurable characteristics that describe the condition of aquatic environments. Physical parameters include temperature, turbidity, colour, and flow rate. Chemical parameters include pH, dissolved oxygen, salinity, and nutrient levels. These parameters influence the suitability of water bodies for fisheries and aquaculture. For example, dissolved oxygen is critical for fish survival, while turbidity affects light penetration and plant growth. Physical parameters include temperature, turbidity, colour, and flow rate, while chemical parameters include pH, dissolved oxygen, salinity, and ______ levels.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Figure 1.2 Physical and chemical parameters of water 1.2.2 Geology and meteorology of aquatic environments Geology refers to the structure and composition of the earth materials surrounding water bodies, such as rocks, soils, and sediments. These influence water quality by affecting mineral content and sedimentation. Meteorology is the study of weather and climate, including rainfall, wind, and temperature patterns. Meteorological conditions determine water availability, seasonal flows, and potential risks such as flooding or drought. Together, geology and meteorology shape the aquatic environment and its capacity to support fisheries.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Geology influences water quality through mineral content and sedimentation, while meteorology determines water availability and seasonal ______. Plate 1.2 Geology and meteorology of aquatic environments Pilot questions 1.2 Define water parameters in aquatic environments. State one physical parameter of water. Mention one chemical parameter of water. Identify one way geology influences water quality. Explain why meteorology is important in aquatic environments.
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