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100+ Free Assam ASSEB Higher Secondary Skill Subject Fishery Sciences Practice Questions
Assam State School Education Board (ASSEB / AHSEC) Higher Secondary Skill Subject Fishery Sciences Examination practice questions are available now; exam metadata is being verified.
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Key Facts: Assam ASSEB Higher Secondary Skill Subject Fishery Sciences Exam
100
Total practice questions available in this OpenExamPrep subject bank
OpenExamPrep
3 Hours
Official duration of the ASSEB HS written theory examination
Assam State School Education Board
30%
Minimum qualifying pass mark required for theory and practical modules
ASSEB / AHSEC Regulations
5 Modules
Core technical domains in Class 11 & 12 NSQF Fishery Sciences curriculum
ASSEB Vocational Skill Curriculum
The Assam ASSEB HS Skill Subject Fishery Sciences exam assesses Class 11 & 12 students on 5 core aquaculture areas: Fish Biology, Pond Management, Breeding & Hatchery Management, Disease Control, and Post-Harvest Processing & Marketing.
Sample Assam ASSEB Higher Secondary Skill Subject Fishery Sciences Practice Questions
Try these sample questions to test your Assam ASSEB Higher Secondary Skill Subject Fishery Sciences exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which Indian Major Carp species is primarily recognized as a surface feeder in freshwater aquaculture ponds?
A.Gibelion catla (Catla catla)
B.Labeo rohita (Rohu)
C.Cirrhinus mrigala (Mrigal)
D.Cyprinus carpio (Common Carp)
Explanation: Catla (Gibelion catla) is a fast-growing Indian Major Carp that feeds in the surface zone of the pond. It possesses a broad head, upturned mouth, and prominent gill rakers adapted for straining zooplankton from surface waters.
2In polyculture carp ponds, which ecological feeding niche is occupied by Labeo rohita (Rohu)?
A.Surface zone
B.Column (mid-water) zone
C.Bottom mud zone
D.Marginal vegetation zone
Explanation: Labeo rohita (Rohu) is a column feeder. Its sub-terminal mouth with fringed lips is structurally adapted to feed on algae, epiphytes, and decaying plant material suspended in the middle water layer.
3Which anatomical adaptation enables Cirrhinus mrigala (Mrigal) to feed on benthic detritus at the pond bottom?
A.Upturned terminal mouth with fine gill rakers
B.Sub-terminal mouth with thin fringed lips
C.Ventral inferior mouth with a single pair of short barbels
D.Large protrusible jaws with sharp canine teeth
Explanation: Cirrhinus mrigala (Mrigal) has a small, ventral inferior mouth equipped with a single pair of short rostral barbels, allowing it to easily graze on benthic algae, decaying organic matter, and detritus at the pond substrate.
4What type of scales covers the body of major cultivated carp species like Rohu, Catla, and Mrigal?
A.Placoid scales
B.Cycloid scales
C.Ctenoid scales
D.Ganoid scales
Explanation: Carps (Family Cyprinidae) possess thin, flexible, overlapping cycloid scales characterized by smooth outer margins and concentric growth rings (annuli).
5What specialized accessory respiratory structure allows Clarias magur (Magur) to survive in oxygen-depleted waters?
A.Labyrinthine organ
B.Arborescent (dendritic) organ
C.Suprabranchial organ
D.Tubular air-sac
Explanation: Clarias magur (Magur) possesses paired arborescent (dendritic) organs situated in suprabranchial chambers above the gill arches, enabling direct atmospheric air breathing in low-oxygen habitats.
6Which exotic carp species is specifically introduced in polyculture systems for the biological control of submerged aquatic macrophytes?
A.Hypophthalmichthys molitrix (Silver Carp)
B.Ctenopharyngodon idella (Grass Carp)
C.Cyprinus carpio (Common Carp)
D.Oreochromis niloticus (Nile Tilapia)
Explanation: Ctenopharyngodon idella (Grass Carp) is a macrophytophagous herbivore. Its specialized comb-like pharyngeal teeth crush and slice aquatic weeds (such as Hydrilla, Najas, and duckweeds), providing effective biological weed control.
7What distinctive morphological feature differentiates Hypophthalmichthys molitrix (Silver Carp) from Gibelion catla (Catla)?
A.Ventral keel extending along the abdomen and extremely fine gill rakers forming a sponge-like network
B.Presence of two pairs of long barbels and a serrated dorsal spine
C.Ventral inferior mouth with fringed lips
D.Heterocercal caudal fin and placoid dermal denticles
Explanation: Silver Carp has a sharp ventral keel running along its abdomen from breast to vent and extremely fine, fused gill rakers forming a microscopic filtering mesh. This allows it to strain tiny phytoplankton (<10 microns), unlike Catla which strains larger zooplankton.
8Which variety of Common Carp (Cyprinus carpio) is fully covered with uniform, large shiny cycloid scales?
A.Cyprinus carpio var. communis (Scale Carp)
B.Cyprinus carpio var. specularis (Mirror Carp)
C.Cyprinus carpio var. nudus (Leather Carp)
D.Cyprinus carpio var. flavipinna (Yellow Carp)
Explanation: Cyprinus carpio var. communis (Scale Carp) has a body completely and uniformly covered with standard cycloid scales. Mirror Carp has large irregular scales, while Leather Carp is virtually devoid of scales.
9How does the air-breathing catfish Heteropneustes fossilis (Singhi) differ structurally from Clarias magur (Magur)?
A.Singhi has a long tubular air sac extending backwards into the tail musculature, whereas Magur has branched arborescent organs above the gills.
B.Singhi possesses no pectoral spines, while Magur has venomous spines.
C.Singhi is a surface herbivore, while Magur is a bottom filter feeder.
D.Singhi has cycloid scales, whereas Magur has ganoid plates.
Explanation: Heteropneustes fossilis (Singhi) has a pair of long, hollow tubular air sacs extending posteriorly along both sides of the vertebral column into the tail region. Clarias magur has branched, tree-like arborescent organs inside suprabranchial chambers.
10What relationship exists between the relative length of the gut (RLG) and the natural diet of a teleost fish?
A.Herbivorous fishes have a long coiled intestine (high RLG), while carnivorous fishes have a short intestine (low RLG).
B.Carnivorous fishes have a long intestine (high RLG), while herbivorous fishes have a short intestine (low RLG).
C.Planktivorous fishes have no intestine at all.
D.RLG is constant (1:1) across all teleost fishes regardless of feeding habits.
Explanation: Plant material contains cellulose which is harder to digest, requiring a long coiled intestine (RLG > 3 to 15, e.g. Grass Carp). Carnivorous fishes digest protein-rich meat easily and have short straight intestines (RLG < 1, e.g. Wallago attu).
About the Assam ASSEB Higher Secondary Skill Subject Fishery Sciences Practice Questions
Verified exam format metadata for Assam State School Education Board (ASSEB / AHSEC) Higher Secondary Skill Subject Fishery Sciences Examination is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.