Assam ASSEB Higher Secondary Skill Subject Fishery Sciences study plan

Define aquaculture and distinguish it from capture fisheries, listing at least five cultured species of Assam (rohu, catla, mrigal, grass carp, magur) with their feeding habits

Explain pond types by use (nursery, rearing, stocking, grow-out) and by water source, and state the recommended size and depth for each

Describe the physical and chemical properties of pond soil (texture, pH, organic carbon) and how soil type influences pond productivity

List the key water quality parameters (temperature, DO, pH, alkalinity, hardness, ammonia, nitrite, transparency) with their optimum ranges for carp culture

Perform a worked calculation of pond area and volume for a rectangular and an irregular pond, and of lime and cow-dung dose per hectare

Explain the daily and seasonal cycles of dissolved oxygen and temperature in a stratified pond, and describe how to prevent and correct oxygen depletion

Describe the nitrogen cycle in a pond and the toxic thresholds of unionised ammonia and nitrite, and outline management responses to each

Explain the roles of liming, fertilisation (organic and inorganic) and aeration in raising natural pond productivity

Label the external and internal anatomy of a typical carp and state the function of gills, swim bladder, kidney, liver and gonads

Describe respiration, osmoregulation and excretion in freshwater fish and relate each to water quality management

Describe the reproductive system, gonadal development stages and the endocrine control of maturation in Indian major carps

Distinguish natural spawning from induced breeding, and explain the role of pituitary extract and synthetic hormones (e.g. ovaprim) in induced breeding

Outline the steps of hypophysation: broodstock selection, dose calculation, injection, spawning and egg collection

Describe the design and operation of a carp hatchery, including spawning pool, incubation jars and water supply

Explain seed production targets, nursery rearing of spawn to fry and fry to fingerling, and the causes of spawn mortality

Classify feed ingredients (energy, protein, mineral, vitamin) and compare the nutritional requirements of fry, fingerling and grow-out carp

Formulate a simple practical diet using the Pearson square method to reach a target crude protein level, and state the feeding rate and frequency by fish size

Explain the difference between natural pond food, supplementary feed and complete feed, and describe on-farm feed storage and quality checks

Identify the common signs of disease in fish (erratic swimming, fin erosion, gill discolouration, lesions, bloating) and describe how to take a clinical history

Describe the common diseases of cultured carp in Assam (epizootic ulcerative syndrome, argulosis, saprolegniasis, columnaris) and their basic control measures

Explain the principles of disease diagnosis: water quality assessment, gross pathology, wet mount microscopy and bacterial culture

Describe the responsible use of common treatments (salt, lime, potassium permanganate, formalin) with dose, route and withdrawal period

Explain biosecurity and quarantine practices for hatcheries and nurseries, including disinfection and record keeping

Classify fishing gear by principle (gill net, cast net, seine, trap, hook and line) and describe the construction and operation of each

Explain selectivity, mesh size regulation and the legal and conservation issues around destructive fishing in Assam's beels and rivers

Describe post-harvest handling, chilling and spoilage in fish, and explain the factors that accelerate quality loss

Explain the principles of drying, smoking, salting, canning and freezing, and compare their effect on shelf life and nutrition

Describe value addition through fish products (fish pickle, fish meal, fish oil, surimi) and the quality standards that apply

Outline the fish marketing chain in Assam from pond to consumer, including wholesalers, retailers and cooperatives

Explain the role of fisheries in Assam's economy and employment, and the main government support schemes for fish farmers

Prepare a simple enterprise budget for a one-hectare carp polyculture pond, showing fixed cost, variable cost, yield, gross income and net profit

Calculate break-even yield and payback period, and explain the main risks (disease, flood, price fall) and mitigation options

Describe the role of extension in fisheries and the methods of technology transfer (demonstration, farmer field school, mass media, farmer-to-farmer)

List the practical skills expected in the field component: water sampling, secchi disc and DO measurement, fish handling, and record keeping

Describe field exposure activities such as pond visits, hatchery visits and fish market surveys, and what to observe in each

Consolidate all domains by rewriting personal summary notes for each domain in no more than 150 words

Complete two full-length timed mock tests covering all ten domains and review every wrong answer

Revisit the three weakest domains identified from mock results and redo targeted practice on them

Practise the numerical question types (pond volume, lime dose, hormone dose, feed formulation, break-even) under time pressure

Rehearse the practical component by describing procedures for water sampling, DO estimation and fish disease wet mount from memory