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| Pakistan Research Repository | Home |
Title of Thesis |
| Author(s) Farzana Yousuf |
| Institute/University/Department Details Marine Reference Collection & Resource Centre/ University of Karachi |
| Session 2006 |
| Subject Zoology |
| Number of Pages 237 |
| Keywords (Extracted from title, table of contents and abstract of thesis) planktonic shrimps, family sergestidate, international indian ocean expedition, indian ocean, sergestes, sergia, decapoda, dendrobranchiata, sergestoidea dana, dendrobranchiata bate, sergestes h. milne edwards |
Abstract The higher systematics deals with the diagnosis of the Decapoda, Dendrobranchiata and Sergestidae. Keys are given to the genera and the species in IIOE material. Description of each genus includes literature review, list of the world species, synonymy, diagnosis and type species, while species description includes synonymy, material examined, diagnosis, description of adult male and female, juvenile male and female, size range, geographical distribution, and appropiate remarks where necessary . In the distribution part of this study frequencies of occurrence and bathymetric distribution of Sergestes and Sergia in different regions of the Indian Ocean is attempted based on the samples captured during the International Indian Ocean Expedition (1960-1965). The total number of Sergestids specimens was collected' 2409 from 1071 stations by the following vessels; Anton Brunn (611),Argo (256), Conch(II), Discovery (270), Diamantina (188), Gascoyne (44), Kistna (361), Koyo Maru (46), Meteor ( 122), Natal (29), Oshoro Maru (177), Patanela (51), Pioneer (72), Varuna (122), Vitiaz (44), Zulun (70). Nine Sergestes species with a total number of 1827 were collected from 746 stations as follows: Anton Brunn (436), Argo (199), Conch (11), Discovery (190), Diamantina (121), Gascoyne (5), Kistna (358), Koyo Maru (6), Meteor ( 103), Natal (29), Oshoro Maru (107), Patanela (51), Pioneer (31), Varuna (89), Vitiaz (10) and Zulun (70). Two Sergia species with a total numbers 636 specimens from 325 stations as follows: Anton Brunn (175), Argo (57), Conch (11), Diamantina (67), Discovery (80), Gascoyne (39), Kistna (3), Koyo Maru (40), Meteor (19), Oshoro Maru (70), Pioneer (41), Varuna (33) and Vitiaz (34). The material has been further investigated to determine the average numbers of adult males, adult females, juvenile males and juvenile females (Figs. 86,87,88,89). The numerical count shows that Sergestes semissis is the most abundant species. It comprised of653 adult males and females of the total 1827 Sergestes specimens. Sergestes verpus was the second most abundant species, comprising of 210 both adult males and females and juvenile males and females of the total 2463 sergestids. The population of Sergestes cf. edwardsii was sparse, only 2 specimens were present in samples. While Sergia potens comprises specimens of 257 adult males and females and juvenile males and females and S. umitakae 379 both adult males and females and juvenile males and females of total 636 specimens. The prevalence of sergestids under study is discussed, using of maps, tables and histograms. Besides the adults and juveniles three larval stages have also been identified in these samples: Protozoeae, Zoeae and Postlarvae. Their occurrence and abundance is traced at different 'depths and time of the day. |
| Download Full Thesis |  9077.54 KB |
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| S. No. | Chapter | Title of the Chapters | Page | Size (KB) |
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| 1 | 0 | Contents | 303.62 KB |
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| 2 | 1 | Introduction | 1-4 | 95.56 KB |
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| 3 | 2 | Materials And Methods | 5-10 | 644.48 KB |
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| 4 | 3 | Systematic | 11 | 5029.73 KB |
| 3.1 | Diagnostic Characters Of The Suborder Dendrobranchiata Bate, 1888 | 11 | ||
| 3.2 | Diagnostic Characters Of The Superfamily Sergestoidea Dana, 1852 | 12 | ||
| 3.3 | Key To The Families Of The Sergestoidea Dana, 1852 | 13 | ||
| 3.4 | Diagnostic Characters Of The Family Sergestoidea Dana, 1852 | 14-15 | ||
| 3.5 | Key To The IIOE Genera Of The Family Sergestoidea Dana, 1852 | 16 | ||
| 3.6 | Review Of Literature On The IIOE Genera | 17-28 | ||
| 3.7 | Diagnostic Characters Of The Genus Sergestes H. Milne Edwards, 1830 | 29-30 | ||
| 3.8 | List Of World Sergestes H. Milne Edwards, 1830 Species | 31-33 | ||
| 3.9 | Key To The IIOE Species Of Genus Sergestes, H. Milne Edwards, 1983 | 34-36 | ||
| 3.10 | Description Of Sergestes Cf Brevispinatus Judkins, 1978 | 37-45 | ||
| 3.11 | Description Of Sergestes Curvatus Crosnier And Forest , 1973 | 46-52 | ||
| 3.12 | Description Of Sergestes Cf Edwardsii Krøyer, 1855 | 53-57 | ||
| 3.13 | Description Of Sergestes Hamifer Alcock And Anderson, 1894 | 58-62 | ||
| 3.14 | Description Of Sergestes Henseni (Ortmann, 1893) | 63-71 | ||
| 3.15 | Description Of Sergestes Orientalis Hansen, 1919 | 72-81 | ||
| 3.16 | Description Of Sergestes Paraseminudus Crosnier And Forest , 1973 | 82-93 | ||
| 3.17 | Description Of Sergestes Semissis Burkenroad, 1940 | 94-118 | ||
| 3.18 | Description Of Sergestes Stimulator Burkenroad, 1940 | 119-126 | ||
| 3.19 | Description Of Sergestes Verpus Burkenroad, 1940 | 127-133 | ||
| 3.20 | Diagnostic Characters Of The Genus Sergia Stimpson, 1860 | 134-135 | ||
| 3.21 | List Of World Sergia Stimpson, 1860 Species | 136-137 | ||
| 3.22 | Key To The IIOE Species Of Genus Sergia Stimpson, 1860 . | 138 | ||
| 3.23 | Description Of Sergia Potens (Burkenroad, 1940) | 139-152 | ||
| 3.24 | Description Of Umitakae Hashizume And Omori, 1995 | 153-168 | ||
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| 5 | 4 | Discussion | 169-176 | 153.03 KB |
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| 6 | 5 | Distributional Pattern Prevalence, % Abundance And Bathymetric 'Distribution Of Adults | 177-185 | 1456.26 KB |
| 5.1 | Geographical Distribution Of Individual Species In The Indian Ocean | 186-193 | ||
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| 7 | 6 | Sergestid Larvae -Introduction, Distribution In IIOE | 2018.85 KB |
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| 6.1 | Acknowledgements | |||
| 6.2 | References | |||
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