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TITLE
DECLARATION
CERTIFICATE
ACKNOWLEDGEMENT
CONTENTS
1. Introduction
Western Ghats - an overview
Major hill ranges of Kerala part of Western Ghats
Biodiversity of Western Ghats
Scope and importance of the study
Review of literature
Major Ichthyological studies on Indian fish fauna
Studies on the fresh water fish fauna of Kerala
Studies on the Freshwater fishes of Northern Kerala
STUDY AREA
Kerala: the land and its rivers
Climate
Rainfall
Temperature
Table 1.1. Rivers and river basins of northern Kerala
fIG.1.1.Rivers of Kerala
METHODS
Other methods
Physical and Chemical parameters
Classification and Nomenclature
2. Current status and distribution of fish fauna of northern Kerala
A. Current status of fresh water fishes
I. Current Status of freshwater fishes of Northern Kerala
Threatened categories
Non-threatened categories
Threatened categories of fishes of northern Kerala
Table 2.1: Critically endangered freshwater fishes of northern Kerala
Table 2.2: Endangered fishes of northern Kerala
Table 2.3: Distribution of Vulnerable fishes of Northern Kerala
B. Current Status of hill stream fishes
Introduction
The factors affecting fish in hill streams
Adaptations
Results and discussion
Table 2.4: Status of hillstream fishes of northern Kerala
C. Distribution of freshwater fishes of Northern Kerala
Major river systems of northern Kerala
Results and disucussion
Table 2.6: Systematic list of freshwater fishes collected from Northern Kerala
Table 2.6, Riverwise distribution of freshwater fishes of Northern Kerala
D. Hill stream fishes: river wise distribution in northern Kerala
Results and discussion
Table 2.7: Riverwise distribution of hillstream fishes of northern Kerala
Fig 2.1. Current status of freshwater flshes ofnortehrn Kerala
Fig 2.2. Number of freshwater fishes represented in variousfamilies
Fig 2. 3. Number of hill stream fishes represented invarious families
Fig. 2.4. Total number of hill stream fishesdistributed in the rivers of Northern Kerala
E. Fish fauna of protected areas of northern Kerala
1. Way anad wildlife sanctuary
2. Aralam wildlife sanctuary
3. Silent Valley National Park
DISCUSSION
Table 2.8: Fish.fauna of Wild life sanctuaries and National Park of northern Kerala.
Fig. 2.5. Famllywis re resentation of stream fishes-Wynad WLS
Fig. 2.6. Familywise representation of stream fishes -Aralam WLS
Fig.2.7. Familywise representation of stream fishes -Silent Valley
F. Fish fauna of Bharathapuzha river system-a case study
Table 2.10. Major physical and chemical parameters and total number of fishes
Results and discussion
Table 2.9 Freshwater fishes Bharathapuzha river, northern kerala
Table 2.1 1. Correlation studies-Bharathapuzha river
F. General information of the typical hillstream fishes
Plate I a) Puntius melanampyx (Jerdon)
Plate I b) Puntius dorsalis (jerdon)
Plate I c) Barbodes Carnaticus (jerdon)
Plate I d) Hvpselobarbus Kurali Menon & Remadevi
Plate 2 a) Mystus punctatus (jerdon)
Plate 2 b) Sicyopterus griseus (day)
Plate 2 c) Pangio goaensis (Tilak)
Plate 2 d) Mastacembelus guentheri (Day)
Plate 3 a) Hypselobarbus curmuca (Ham -Buch)
Plate 3 b) Tor khudree malabaricus (Sykes)
Plate 3 c) Osteobrama bakeri day
Plate 3 d) Barilius bakeri Day
Plate 4 a) Barilius gatensis (Val.)
Plate 4 b) Barilius bendelisis (ham-buch)
Plate 4 c) Salmostoma boopis (day)
Plate 4 d) Horalabiosa joshuai Silas
Plate 5 a) Garra mullya (sykes)
Plate 5 b) Bhavania australis (jerdon)
Plate 5 c) Balltora mysorensis Hora
Plate 5 d) Nemacheilus triangularis Day
Plate 6 a) nemacheilus guentheri Day
Plate 6 b) Glyptothorax anamaiensis Silas
Plate 6 c) Mystus malabaricus (jerdon)
Plate 6 d) Mystus oculatus (val.)
3. Habitat preference of critically endangered and endangered hill stream fishes of northern Kerala
Habitat preference of typical hill stream fishes
I. CRITICALLY ENDANGERED FISHES
Table 3.1: Physical features of the habitat of Puntius melanostigma Day
Table 3.2: Physical features of the habitat of Tor tor
Table 3.3: Physical features of the habitat of Horalabiosa joshuai Silas
Table 3.4: Physical features of the habitat of Chela fasciata %las
Table 3.5: Physical features of the habitat of Amblypharyngodon mola (Ham.-Buch.)
Table 3.6: Physical features of the habitat of Homaloptera montana Herre
Table 3.7: Physical features of the habitat of Nemacheilus monilis Hora
Table 3.8: Physical features of the habitat of Batasio travancoria Hora & Law
Table 3.9: Physical features of the habitat of Glyptothorax anarnalaiensis Silas
B. ENDANGERED FISHES
Table 3.11: Physical features of the habitat of Hypselobarbus jerdoni (Day)
Plate 7 (a) Typical habitat of Tor khudree
Plate 7 (b) Typical habitat of Barbodes carnaticus u
Plate 7 (c) Typical habitat of Esomus rasobora genera
Fig.3.5.Substrate distribution at the collection sites of B.carnaticus.Bharathapuzha river
Fig.3.5.Substrate distribution at the collection sites of B.carnaticus-Chandragirl river
Fig.3.6. Substrate distribution at the collection sites of P.denisonll-Chandragiri river
Fig.3.8. Substrate distribution at the collection sites of P.denisonll-Vatapattanam river
Table 3.12: Physical features of the habitat of Osteobrama brevidorsalis
Table 3.13: Physical features of the habitat of Barbodes cariraticus (Jerdon)
Table 3.14: Physical features of the habitat of P. denisonii (Day)
Fig.3.8. Substrate distrlbutlon at the collection sltes of P.denisonii -Challyar river
Fig.3.7. Substrate dlstrlbutlon at the collection sltes of P.dorsalls -Bharathapuzha river
Fig.3.7. Substrate distribution at the collection sites of P.dorsalis - Bhavani and Chaliyar rivers
Fig.3.8. Substrate distribution at the collection sites of L.ariza -Bhavani and Kabinl rivers
Table 3.15: Physical features of the habitat of Puntius dorsalis (Jerdon)
Table 3.16: Physical features of the habitat of Puntius wynadensis
Table 3.17: Physical features of the habitat of Labeo ariza
Fig. 3.9. Substrate distribution at the collection sites of L.potall Bharathapuzha and Bhavani rivers
Fig. 3.10. Substrate distribution at the collection site of E.thermoicos- Bharathapuzha river
Fig.3.11. Substrate distribution at the collection sites of G. gotyla stenorhyncus. Challyar and Bhavani rivers
Fig.3.11. Substrate distribution at the collection sites of C.gotyla stenorhyncus- Kabini river
Table 3.18: Physical features of the habitat of Labeopotail (Sykes)
Table 3.19: Physical features of the habitat of Esomus thertnoicos (Val.)
Fig.3.12. Substrate disribution at the collection sites of G. mcCllellandi- Bharathapuzha and Chaliyar rivers
Fig. 3.13. Substrate distribution at the collection site of G.menoni.Bharathapuzha river
Fig.3.14. Substrate distribution at the collection sites of B.mysorensis
Fig.3.15.Substrate distribution at the collection sites of N.denisonli- Bharathapuzha and Chandragiri rivers
Table 3.20: Physical features of the habitat of Garra gotyla stenorhyncus
Table 3.21: Physical features of the habitat of Garra mcClellandi (Jerdon)
Table 3.22: Physical features of the habitat of Garra merroni Remadevi & Indra
Fig.3.16. Substrate distribution at the collection sites of N.evezardi-Kabini and Bhavani rivers
Fig.3.17. Substrate distribution at the collection sites of N.semiarmatus- Kabini and Bhavani rivers
Fig.3.18. Substrate distribution at the collection sites of M.punctatus
Fig.3.19. Substrate distribution at the collection sites of C.dussumleri
Table 3.23: Physical features of the habitat of Balitora mysorensis Hora
Table 3.24: Physical features of the habitat of Nemacheilus denisonii Day
Plate 8 (d) Typical habitat of Nemacheilus spp.
Plate 8 (e) Typical habitat of Sicyopterus griseus
Plate 8 (f) Typical habitat of Bhavania, Glyptothorax genera
Table 3.25: Physical features of the habitat of Nemacheilus evezardi Day
Table 3.26: Physical features of the habitat of Nemacheilus semiarmatus Day
Table 3.27: Physical features of the habitat of Mystus punctatus (Jerdon)
Table 3.28: Physical features of the habitat of Clarias dussumieri
Table 3.29: Physical features of the habitat of GIyptothorax madraspatanus Day
Table 3.30: Physical features of the habitat of Hypselobarbus curmuca
DISCUSSION
Table 3 Substrate distribution at the collection sites of endangered hill stream fishes of northern Kerala
4. Food and feeding habits and length-weight relationship of hill stream fishes
I. Food and feeding habits of selected fishes
1. Bhavania australis (Jerdon)
Table 4.1. Percentage volume, occurrence and Index of Preponderance of differentfood items of Bhavania australis (Jerdon)
2. Deccan Mahseer, Tor khudree (Sykes)
Table 4.2. Percentage volume, occurrence and Index of Preponderance of different3. Osteobrama bakeri Dayfood items of Tor khudree (Sykes)
3. Osteobrama bakeri Day
Table 4.3. Percentage volume, occurrence and Index of Preponderance of differentfood items of Osteobrama bakeri Day
4. Nemacheilus guentheri Day
Table 4.4. Percentage volume, occurrence and Index of Preponderance of differentfood items of Nemacheilus guentheri Day
II.Length weight relationship of selected hill stream fishes
Introduction
Materials and methods
Results and discussion
Table 4.6. Details of statistical analysis of length-weight relationship of Tor khudree
5. Fish conservation studies
I. Evaluation of changes in fish assemblages through comparison withpast records
DISCUSSION
New species from northern Kerala
Other additions from northern Kerala
Introduced or exotic species
Table 5.1: Compiled list of freshwater fishes recorded from Northern Kerala
Table 5.2. Species recorded by earlier workers, but not recorded during thisstudy (Missing species), from northern Kerala
II. Ecologically sensitive areas for long term monitoring and conservation
Fig.5.1 Kunthi river, sub tributary of Bharathapuzha river, Silent Valley national park
Fig.5.3. Nellipuzha tributary of Bharathapuzha river
Fig. 5.2. Bhavani river, Nilgiri Biosphere Reserve
Fig. 5.4. Vytiri river, tributary of Kabini river
Summary
Current status and distribution of freshwater and hill stream fishes of northernKerala
Habitat preference of selected hill stream fishes
Food and feeding habits and length-weight relationship
Fish conservation studies
Major recommendations
Reference
LIST OF PUBLICATIONS FROM THE PRESENT STUDY