Project on larvivorous in India

1. GOVERNMENT E. RAGHAVENDRA RAO PG SCIENCE
COLLEGE, BILASPUR CHHATTISGARH
Department of zoology
SESSION 2024-25
Subject Paper – Aquaculture and
Fisheries’
Topic -Project work on larvivorous Fishes of India
Guided by
Prof. Mr. Anil Gavel
Presented by -
Chitrakanta Pendro
M.Sc. 4rd semester

2. AQUACULTURE AND
FISHERIES
(LARVIVOROUS FISHES OF INDIA)

3. CONTENT
1. Introduction - historical
background.
2. Characters of Larvivarous fishes
3. Classification of Larvivorous
fishes
4. Categories of Larvivarous fishes
5. Role of larvivorous fishes in relation to public health

4. INTRODUCTION .
Mosquito boon disease continue to be major problem in almost
all tropical and subtropical
countries. (Dengue, malaria, filaria)
They are responsible for the transmission of pathogens Sing some
of
the life Hearting diseases like
Malaria yellow fever. dengue fever, chikungunya, filariasis Insaf
lysis
Larvivorous fish as recognized of who are a powerful and
environmentally sensitive solution in the
fight against mosquito born diseases.
Approx. 350 315 larvivorous fishes’ species are recoded among
them
cyprinid, chilidia species are most important Larvivorous fishes.
poecilid and anabantid
History The rephrase of larvivorous fishes in the literature has
come due to their importance in controlling controlling mosquito
born diseases .

5. INTRODUCTION .
Mosquito genic conditions have increased on account of horsing environmental such
deadly
160 population and resultant pollute of the environment. conditions. As is well known
mosquito
transmitting diseases, chemical control of mosquitoes had Mocked to be hazardous to the
environment.
Recent development in factor control is the bioenvironmental control of malaria using
Larvivorous fishes.
These strategies emphasize control of mosquito breeding using biological control of
mosquito
breeding with the active help of human population,
This method is found to be safe, brings out mosquito control in harmony with nature and
has
high social accessibility.
As early as 1854 Doctor fort freed attain in Us of its mosquito larva Since by placing
some small fishes. Since that a number of filled trials and observations in various parts
of the world on the Utility of larvicidal fishes the efficiency of certain fishes in the
destruction of disease transmitting vectorlike mosquito and cyelops has been has
been well stabilized.
Sweetman, "Mosquito control with fishes if carried out Intelligently which unfortunately
has not being easy

6. CHARACTER OF
LARVIVOROUS FISHES
Usually, small sized so that a large number of them can be aces modated in hallow areas
where mosquitoes find suitable breeding grounds. Simultaneously they should be able to
move freely among its.
Hardinature Hardy meaning there by that they can thrive well in adverse physicochemical
condition
of water in fresh as well as Marine water.
Mouth shape: Most of them have suitable designed mouth and jaws to pickup eggs, larva
and pupa
efficiently in quick succession. the mouths is obliquely directed upwards due to up horn
jaws. The lips
are quite Thin, making the jaws to work like a pair of forceps so much so the Cover jaw is
mostly a
beat longer then the upper one.
Reproduction / Breeding: They prolific breeders confine water and shorter span - life cycle
also
that they can successfully breeding confine water.
Generally compatible Being with the existing fishes’ life in that environment Being small

7. CATEGORIES OF CARNIVOROUS
FISHES
.
.
Capability of fish, based on predatory tendencies, the fishes may be. categorized into four
categories The position of mouth is one, the important characteristics to determine the
larvivorous
Categories I: Fishes in this category have high predatory index, small sized and are surface feeders
because of
superior position of their mouth They show a high potential in mosquito control. E.g. oryzins mela
stigma,
Gambusia a fines.
egg - Fry - Fingerling - Juvenile stage- Adult stage.
Categories 2: Fishes with almost terminal upturn mouth, surface to subsurface feeders having high
potential
in mosquito control. e.g. Danio species, Ras Bora species, Esomus Danticats.
Categories 3: Under these categories can be placed most of the major corps of good value, they
have a limited potential in mosquito control. particularly up to fingerling stage.
e.g. Labeo Rohitha, catla catla
Categories 4 : Mostly carnivorous fishes can be placed under this category. They may be
considered suitable also in their young stages for carrying the mosquito minas.
E.g. Notopterus, wallago Attu ,Channa punctuates

8. ROLE OF LARVIVOROUS FISHES IN RELATION TO
PUBLIC HEALTH
.
Biological control of insects means the destruction of insects by their natural
enemies.
It is regarded as one of the most potent tool to control insects, especially
mosquitoes without causing any harmful effect on human health, food chain and
environment. The eggs, larva, pupa and adult mosquitoes provide ideal food for
fish fry, fingerlings and many adult fishes.
The small sized carnivorous fishes especially prefer mosquito larva throughout
their life. Larvicidal fishes are an important tool for biological control of mosquito
population.
Mosquitoes act as vector, transmitting several diseases to human beings from
the reservoir organisms. Important and serious diseases like malaria, filaria,
dengue, yellow fever, Japanese B-encephalitis and others are being transmitted
through mosquitoes.
Larvicidal fish by consuming mosquito larva help in reducing the population of
vectors thereby minimize the occurrence of mosquito born diseases.
The guinea worm can also be checked by the introduction of cyclopsivorous
fishes like Ambasis, in order to cut down the population of cyclops, which is as
intermediate host for the worm.
The gastropods and lamellibranch's, which serve as carrier for parasites,
especially for animals of human food value, can also be directly checked as

9. ROLE OF LARVIVOROUS FISHES IN
RELATION TO PUBLIC HEALTH
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11. ROLE OF LARVIVOROUS FISHES IN
RELATION TO PUBLIC HEALTH
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12. ROLE OF LARVIVOROUS FISHES IN
RELATION TO PUBLIC HEALTH
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13. REFERENCE 13
.
I. Abramenko, MI., Kravchenko OV., Velikoivanenko AE (1997) Population genetic
structure of
the Gold fish Carassius auratus gibe Lio diploid triploid complex from the Don River
Basin., J.
of Ichthyology, 37: 56 65
2. Aditya, G. , Pal, S., Saha, N. and Saha, G.K. (2012) Efficacy of indigenous larvivorous
fishes
against Culex quinquefasciatus in the presence of alternative prey: Implications for
biological
control. , J. Vetch. Borne Dis, 49: 217-225.
3. Awoyemi, O.M., Unwarily, P.N., Izegaegbe, J. I. and Fadeyi O.P. (2014) Analysis of the
foraging behavior of Guppy (Poecilia reticulata) in relation to its use as a biological
method
for the environmental control of mosquito larvae. Int. J. Recent Res. Appl. Stud, 21(3) :
103-
113.
4. Jenifer N.P., Kumar M. and Kumar K.L. (2012) The effects of photoperiod on the growth
rate
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14. THANK
YOU