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| Paper Title: | STUDIES ON THE LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF FOUR LARVIVOROUS FISHES FROM PATHSALA,BARPETA, ASSAM |
| Authors Name: | Rajashri Bhuyan |
| Unique Id: | IJSDR2302143 |
| Published In: | Volume 8 Issue 2, February-2023 |
| Abstract: | Four fresh specimens of larvivorous fishes namely Chanda nama(n=100),Parambasis ranga(n=100),Channa gachua(n=64) and L. guntea(n=80) were collected from the fish market of Pathsala under jurisdiction of district Barpeta (Assam) by direct purchase from the sales man. The specimen of different size of length ranging from a mimimum to a considerably available maximum size of either specis were selected for present studies in good condition .All the samples of species were collected from last part of December month to first part of January ,2022.The relationship between the length and weigth of each specimen converted to the statistical values and have expressed by table .The length weight relationship of the specieses present studies were calculated by using the general equation ,W=cLn ; W=weight, L=length The equation when expressed in logarithmic form become Log W= log C+ n log L.The values of c and n can be determined empirically.The following formula can be used to determined the exponent value ∑ log W(logL)2 - ∑ logL(logLx logW) Log C= Nx ∑ (logL)2 - (∑ logL)2¬ ∑ Log W- Nlog C Log n = ∑ logL The coefficient of condition or ponderal index can also be ascertained from the length weight relationship in an important aspect in fishery research and provide additional information about spawning,feeding and other repect related to well being of fish.In the present study the ponderal index of the specieses were separately calculated by using the following formula as suggested as Lecren 1951; and Fulton’s Condition Factor i.e Kn =W/L3 X 100 or Kn=w/(^w) , Where,W=observed weight , ^w=expressed weight For Chanda nama the condition factor is found between 1.1 to 4.2 being the minimum and maximum respectively followed by parambasis ranga0.85 to 1.99 being the minimum and maximum respectively, channa gachua0.58 to 0.78 being the minimum and maximum respectively and Lepidocephalichthys guntea 0.76 to 1.21 being the minimum and maximum respectively. |
| Keywords: | Larvivorousfish,Length-Weight Relationship, Condition factor, Fultons condition factor, spawning, Empirically. |
| Cite Article: | "STUDIES ON THE LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF FOUR LARVIVOROUS FISHES FROM PATHSALA,BARPETA, ASSAM", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.8, Issue 2, page no.816 - 823, February-2023, Available :http://www.ijsdr.org/papers/IJSDR2302143.pdf |
| Downloads: | 000338719 |
| Publication Details: | Published Paper ID: IJSDR2302143 Registration ID:204153 Published In: Volume 8 Issue 2, February-2023 DOI (Digital Object Identifier): Page No: 816 - 823 Publisher: IJSDR | www.ijsdr.org ISSN Number: 2455-2631 |
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