Biology of Horadandia atukorali Deraniyagala 1943 (cyprinidea:teleostei) : Ornamental fish of the Western Ghats of India (Record no. 6655)
| 000 -LEADER | |
|---|---|
| fixed length control field | 03597nam a22001217a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 597 |
| Item number | SEE/BI |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Seena Augustine P A |
| 245 ## - TITLE STATEMENT | |
| Title | Biology of Horadandia atukorali Deraniyagala 1943 (cyprinidea:teleostei) : Ornamental fish of the Western Ghats of India |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication | panagad |
| Name of publisher | kufos |
| Year of publication | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 299p. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Abstract- Horadandia atukorali, Deranyagala, 1943 is a small cyprinid (danionid) fish distributed in southern India and Sri Lanka, which is an indigenous ornamental fish of the Western Ghats of India.<br/><br/>A total number of 1254 specimens were used for investigating the differentaspects of biology. Sampling was done from January 2013 to December 2013from two locations (location I, Panangad ponds and location II, Ezhupunna wetlands).<br/><br/>The morphometric and meristic studies were conducted. 21 body measurements were expressed as percentage of standard length and 4 head measurements were expressed as percentage of head length and the relationships were significant. The percentages of morphometric characters show in two locations show slight variations, where as the meristic counts remained the same. Maximum Total length was 3.5 cm in location I and 3 cm in location II. Length weight relationship, condition factor and relative condition factor were studied for males, females, juveniles and pooled in both locations. They showed negative allometric growth. The b values of females were higher than the males which suggested that females gained weight at a faster rate in relation to its length than males. The overall condition of the fish was found to be in good condition.<br/><br/>The oocyte development was classified into 9 oogenic stages. The dominance of females over males has depicted in the monthly sex ratio (1:3.4). The gonads were quantified into 5 maturity stages based on external morphology. The size at first maturity was found to be 1.5 cm TL for females and 1.3 cm for males. Ovaries of H. atukorali showed asynchronous development, in which oocytes at all stages of development were present in the same ovary at the same time. Ova diameter studies revealed that this species comes under the category C of Karekar and Bal’s classification (1960), characterized by spawning more than once during a protracted spawning season. Based on spawning frequency study of the ripe ovary, H. atukorali was found to be a multiple spawner, with a protracted spawning season, with peak spawning activity in November. The absolute fecundity ranged between 22 (TL. 1.4 cm and 0.034 g body weight) and 172 eggs (TL. 3.5 and 0.15 g body weight). They did not exhibit clear cut sexual dimorphism.<br/><br/>The possession of a terminal mouth with moderate gape suggested that it is a column feeder. They belonged to the group of stomach-less fishes in which the digestive tube consisted of mouth, pharynx, oesophagus, intestine and anus. It is a column feeder, mainly a carniomnivore as well a micropredator feeding on small insects, worms, crustaceans and other zooplanktons along with small amount of phytoplankton. The relative gut length were calculated in males, females and juveniles and it ranged between 0.6 and 0.95 in males, 0.5 and 0.7 in females and 0.5 and 0.7 in juveniles respectively.<br/><br/>Complete information on its reproductive biology and food and feeding habits will definitely help in the commercial production and selective breeding under captive condition. This will increase the domestic and export market of this indigenous ornamental fish. It will also help in the conservation and management of the species and their habitat. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Books |
| Withdrawn status | Lost status | Collection code | Home library | Current library | Shelving location | Date acquired | Full call number | Accession Number | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Reference | KUFOS Central Library | KUFOS Central Library | Thesis Shelf | 18/06/2016 | 597 SEE/BI | TH140 | Books |