(4ai)
Water quality refers to the chemical, physical, biological, and radiological characteristics of water. It is a measure
of the condition of water relative to the requirements of
one or more biotic species and or to any human need or
purpose.
(4aii)
(i)temperature,
(ii)dissolved oxygen
(iii)pH level
(iv)Ammonia.
(v)Water turbidity
============
(5ai)
stocking- is the practice of raising fish in a hatchery and releasing them into a river, lake, or the ocean to supplement existing populations, or to create a population where none exists.
Stocking- density is the quantity of fry or fingerlings per unit of water area.
(5aii)
(i)Fertilization of the pond/addition of manure.
(ii)Maintaining water level.
(iii)Repair of pond and the fence.
(iv)Cropping /selective removal of excess fish.
(5bi)
(i)Pseudomonas fluorescens
(ii)Ichthyophthirius multifiliis
(iii)fungal infections
(iv)Eustrongylides
(v)copepods
(5bii)
(i)Anorexia (loss of appetite, refusing all food, with consequential wasting)
(ii)Rapid breathing
(iii)Hiding abnormally
(iv)Resting on the bottom
(5c)
Area= length x breadth
Area= 30 x 20
Area = 600m²
Answers loading
How do I get 2024 neco fishery answer BEFORE THE EXAM?. You can get 2024/2024 Exam answers directly from examplaza.com, visit
HERE NOW
Name: examplaza.com
Founded: 2010 (14 years)
Founder: Mr. Onuwa
Headquarters: Borno, Nigeria
Official Website: https://examplaza.com/
Official Contact: +2348108515604
Tags: