The present study aimed to describe the length-weight(LWR), length-length(LLR) relationships, condition factors and feeding behavior for critically endangered catfish of Padma River, north-western Bangladesh, namely Rita rita (Hamilton, 1822). A total of 220 specimens, used for this study were caught by traditional fishing gear from May, 2010 to Oct, 2010. A linear relationship is shown among Total length(TL), Standard length(SL), Fork length(FL), Head length(HL), Snout length(SnL), Pre-dorsal length(PrDL), Post-dorsal length(PoDL), Anal length(AnL) and Anus length(AnsL) and Total body weight(TBW). The sample presented in thesis were large and covered reasonable size ranged from 12.9 cm to 31.9 cm. Most relationships were highly significant with ‘r’ values greater than 0.919. From the length-length relationship equations, it is observed that all length increases with increase of TL which is the expected linear relationship. The allometric co-efficient ‘b’ of the LWR was close to the negative allometric in Rita rita. Their diet consisted of a broad spectrum of food types but crustaceans were dominant, with copepodes constituting 20.7%, other non-copepode crustaceans constituted 12%.
To revive the vulnerable catfish, Rita rita, artificial breeding with hormones (carpPG & ovaprim) were conducted. For carpPG, experiment was set under three treatments (T1, T2 and T3) and females were treated at the doses of 90, 100 and 110 mg/kg body weight respectively and males were treated with 40 mg/kg body weight in all cases during the second injection of female proved that the ovulation rate was 100 % in all treatments. The highest fertilization (82.50±6.455 %) and hatching rates (62.75±7.182 %) were observed at the doses of 100 mg carpPG/kg body weight. Another experiment was started with ovaprim where two treatments (T1, T2) against a control were used. Females were treated with 0.5 and 1.0 ml ovaprim/kg body weight respectively and males were treated with 0.5 ml ovaprim/kg body weight in all cases. No ovulation was observed treated with ovaprim. Last experiment was set with 5 days-old larvae reared under two different stocking densities viz. 1 larva and 2 larvae/L of water and fed with chopped tubificid worms ad libitum. There was significant difference between two treatments. Within the period of experiment, embryonic and larval developmental stages were studied.
Do you think we celebrate the anniversaries of the great? It is they who celebrate the benchmarks of our destiny. So… A royal ball. A history quiz and a handsome prize awaiting its winner. But instead of a fairy we have the mysterious Abel’s “compass” whose prophecies were heeded by Russian emperors. At the crossroads of the four parts of the world is a XXI century Cinderella. Will the fairy tale spring to life?
Reproductive biology enjoys over 200 years of scientific custom. In recent years, the interdisciplinarity of reproductive ecology has become a model for integrating Physics, chemistry and biology in to natural history, evolutionary and applied ecology. The book gives a detailed idea about the reproductive biology of angiosperms. This book is written to provide practioners of plant reproductive biology with a broadly based source of methodologies as well as basic conceptual background to aid in understanding. Each chapter contains enough basic information about its topic that users can access the recent pertinent scientific literature. The results were clearly submitted both in table as well as in graphic forms. The photograph provided clearly reveal the various stages of reproductive biology of Impatiens, pollinators, pollen biology, stigma receptivity, seed germination etc. The book has clearly spelled out the correct bottleneck of the species which is growing in the high altitude areas of Western Ghats with high risk of extinction.
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This book is planned to analyze and compare the style of one volume for each of Sharon Olds and Rita Dove, two contemporary American female poets. The book is divided into four chapters: the first one is a theoretical introduction to stylistics and style, the second analyzes Olds’ The Dead and the Living, the third analyzes Dove’s Thomas and Beulah, and the fourth compares and contrasts the styles of both Olds and Dove. The aims of this book are: a. the study of the tropes in the two volumes with attention to metaphor, simile, synecdoche, and the other figures of classical rhetoric which are frequently of great interest for the two poet; b. the study of literary structure and patterns of organization in the two volumes which are related to style. Each poet has won a prestigious prize for her volume: in 1984, Olds won the Lamont Poetry Selection and National Book Critics Circle Award; and in 1987, Dove won the Pulitzer Prize for Thomas and Beulah. Both Olds and Dove belong to the “confessional” literary school of poetry, a trend of poetry that included more confessional, autobiographical material such as sexuality, mental illness, alcoholism, and the difficulties of relationships.
Jonadab is a very special toy - he can fly! But Minnie has so many other toys that often Jonadab and his friend Rita the mouse find themselves sad and lonely and left behind in the toy box... One moonlit night, tired of being ignored, Jonadab flies away and joins a magical fairy feast. But then he can't get back in to Minnie's room, and he discovers his new fairy friends are not as kind as he thought. Will courageous Rita be able to save Jonadab, and will Minnie realise the value of the toy she has lost? A wonderful picture book about getting lost and finding your way home from one of our most popular and best-loved storytellers.
Critically acclaimed, Rubyfruit Jungle launched Rita Mae Brown's career as one of this country's most distinctive writers and continues to be a powerful seminal work more than 40 years after its original publication. Bawdy and moving, the ultimate word-of-mouth bestseller, Rubyfruit Jungle is about growing up a lesbian in America - and living happily ever after.