barman mishra (12 risultati)

Condizione: New.

Condizione: New. 1st Edition.

Condizione: New.

13 col. figs (illustratore). Contents 1 Introduction 2 Review of Indian literature 3 Material and methods 4 Key to species 5 Systematic accounts 6 Discussion Summary Acknowledgements References From the Introduction The threadfin fishes occur in tropical and subtropical coastal waters and estuaries There are also few freshwater species known to exist They are mostly epibenthic forms found on sandy and muddy bottoms in depths less than 150 meters These fishes generally feed on small fishes crustaceans and some even depend on planktons The pectoral filaments are most possibly helpful as a sense organ n search of food in muddy water Hermaphrodites among threadfin fishes seem to be common since their sex change from male to female with growth They probably breed in coastal waters and estuaries while the Mango fish of India is reported to ascend freshwater reaches of rivers for breeding purposes Polydactylus sexfilis Valenciennes is known to occur near reef areas in vicinity of oceanic islands and so seems to be not dependant on freshwater river inflow for breedingAn attempt has been made to review the studies of polynemid fishes made in India along with examination of fresh and preserved specimens in order to avoid prevailing confusions so that future workers will have proper guidance in the field of taxonomy as well as fisheries Moreover taxonomic confusions hinder collection of species-specific distributional as well as fisheries data These fishes are considered as most highly esteemed food fishes and mostly contribute to the fisheries of regional importance 42 pp.

Paperback. Condizione: As New. New. Contents Introduction. Systematic list of the fishes of Orissa coast. Systematic account. 1. Class Chondrichthyes. 2. Key to orders. 3. Order Orectolobiformes. 4. Family Hemiscyllidae. 5. Family Stegostomatidae. 6. Order Carchariniformes. 7. Family Himigaleidae. 8. Family Carcharhinidae. 9. Family Sphyrnidae. 10. Order pristiformes. 11. Family pristidae. 12. Order Torpediniformes. 13. Family torpedinidae. 14. Family Narcinidae. 15. Order Rajiformes. 16. Family Rhinobatidae. 17. Family Dasyatidae. 18. Family Gymnuridae. 19. Family Myliobatidae. 20. Family Mobulidae. 21. Class Osteichthyes. 22. Key to the orders. 23. Order Elopiformes. 24. Family Elopidae. 25. Family Megalopidae. 26. Order Anguilliformes. Summary. Acknowledgements. References. Table I. Fishes originally described as new to science from Orissa coast. 186 pp.

Paperback. Condizione: As New. New. Contents Preface. Introduction. Family Nemipteridae Key to the Genera. Genus Nemipterus Swainson Key to the species 1. Nemipterus bipunctatus (Valenciennes 1830). 2. Nemipterus furcosus (Valenciennes 1830). 3. Nemipterus hexodon (Quoy and Gaimard 1824). 4. Nemipterus japonicus (Bloch 1791). 5. Nemipterus nematophorus (Bleeker 1853). 6. Nemipterus peronii (Valenciennes 1830). 7. Nemipterus randalli (Russell 1986). 8. Nemipterus zysron (Bleeker 1856). Genus Parascolopsis Boulenger Key to the species 1. Parascolopsis aspinosa (Rao and Rao 1981). 2. Parascolopsis boesemani (Rao and Rao 1981). 3. Parascolopsis eriomma (Jordan and Richardson 1909). 4. Parascolopsis inermis (Temminck and Schlegel 1843). 5. Parascolopsis townsendi (Boulenger 1901). Genus Scolopsis Cuvier Key to the species 1. Scolopsis aurata (Park 1797). 2. Scolopsis bilineata (Bloch 1793). 3. Scolopsis bimaculata (Ruppell 1828). 4. Scolopsis ciliata (Lacepede 1802). 5. Scolopsis frenatus (Cuvier 1830). 6. Scolopsis ghanam (Forsskal 1775). 7. Scolopsis lineata (Quoy and Gaimard 1824). 8. Scolopsis margaritifera (Cuvier 1830). 9. Scolopsis taeniatus (Cuvier 1830). 10. Scolopsis vosmeri (Bloch 1792). 11. Scolopsis xenochrous (Gunther 1872). Summary. Acknowledgements. Bibliography. 50 pp.

Soft cover. Condizione: New. 1st Edition. Contents: 1. Introduction. 2. Species account. 3. Summary. 4. Acknowledgements. 5. References.

Condizione: New. pp. x + 238.

Condizione: New. pp. x + 238 Index.

Condizione: New. pp. x + 238.

Paperback. Condizione: Good. Condizione sovraccoperta: no dj. Studies on the Reef-Dwelling Fishes of India. Book.

Contents 1 Education Concept and Types 2 Concept of Extension Education 3 Rural Development Meaning Definition Concepts and Objectives 4 Development programmes of Pre independence era 5 Development programmes of post independence era 6 Community development programme 7 Panchayati Raj System 8 Agricultural development programmes 9 Social justice and poverty alleviation programme 10 Women development programmes 11 Reorganized extension system-training and visit T&V System 12 New Trends in extension 13 Emergence of broad based extension 14 Important policies of agriculture Bibliography IndexThis book is prepared for undergraduate agricultural source of Dimension of Agricultural Extension as per revised curriculum in Extension Education for BSc Agri degree programmeAgricultural Education has undergone a change in its contents approaches emphasis and even methodology As a vast research knowledge is being generated new areas of learning in agriculture are being explored teaching approaches are constantly modified farmers orientation is getting changed professionals challenge is increasing so new items are being added with every passing ear in the Agricultural Education system The 4th Dean?s committee recommended the present course curricula and this book is prepared as per the new contents Some additional but important contents are also included in the book for the benefit of the students 238 pp.