| dc.contributor.advisor | Md. Rashidul Islam | |
| dc.contributor.author | ROY, SOWMITTRAW | |
| dc.date.accessioned | 2022-04-23T06:55:10Z | |
| dc.date.available | 2022-04-23T06:55:10Z | |
| dc.date.issued | 2016-06 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/619 | |
| dc.description | Bangladesh has a unique position in the sub-tropical region, within the delta of three
rivers, the Ganges, the (Brahmaputra and Jamuna) and the Meghna covering an area of
14.4 million ha. In view of this important river system, inland fisheries and aquaculture
are prime contributors to food security and employment of Bangladesh (FAO, 2014).
Atrai is one of the biggest river in Bangladesh. It originates in West Bengal and then
after flowing through Dinajpur district of Bangladesh. It is the western most distributary
of the Brahmaputra It changes its name from Karatoya to Atrai near Khansama upazila
of Dinajpur district and is one of the largest rivers in the north-west region of Bangladesh
(Banglapedia, 2013).
According to IUCN Bangladesh (2015), endangered species considered to be facing a
very high risk of extinction in the wild, nearly threatened species is is likely to qualify
for a threatened category in the near future and Widespread and abundant taxa are
included in least concern category. | en_US |
| dc.description.abstract | The objectives of this study were to describe the length-length relationship (LLR),
length-weight relationship (LWR) and condition factors of nine indigenous freshwater
fish species, Acanthocobitis botia, Botia dario, Botia lohachata, Chanda nama,
Canthophrys gongota, Esomus danricus, Labeo gonius, Lepidocephalicthys guntea and
Ompok pabda collected from the Atrai river in Dinajpur, Bangladesh from November
2015 to April 2016. Relationship equations among different body length parameters of
each species were found highly significant (P>0.05). LWR Indicated positive allometric
growth for A. botia, B. dario, C. nama, C. gongota, E. danricus and L. gonius (b>3).
Two fishes L. guntea and O. pabda showed negative allometric growth (b<3) while B.
lohachata showed isometric pattern of growth (b=3). A T-test of the observed body
weight (Wo) versus the calculated body weight (Wc) for these species produced no
significant difference (P>0.05) between the observed weight and the calculated weight.
Length-length relationships showed that the relationships are low to highly (R2
< 0.990)
significant. Length-weight relationships for five species and length-length relationships
for seven fish species, were not available in FishBase. The information attained from this
study will be helpful for the fishery managers to apply adequate regulations for
sustainable fishery management in the water bodies of Dinajpur district as well as the
other parts of the country. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR | en_US |
| dc.subject | NINE FISH SPECIES | en_US |
| dc.subject | Fish sampling | en_US |
| dc.title | LENGTH- LENGTH, LENGTH- WEIGHT RELATIONSHIP AND CONDITION FACTOR OF NINE FISH SPECIES FROM THE ATRAI RIVER, DINAJPUR, BANGLADESH | en_US |
| dc.type | Thesis | en_US |
