Do the length-weight relationships and condition factors of farmed rainbow trout, brook, and brown trout differ from their wild counterparts?

Ömerhan Dürrani

doi:10.3153/AR23024

EN TR

Do the length-weight relationships and condition factors of farmed rainbow trout, brook, and brown trout differ from their wild counterparts?

Abstract

This study examines the length-weight relationships (LWR) and condition factors (CF) of three farmed fish species: rainbow trout (Oncorhynchus mykiss), brook trout (Salvelinus fontinalis), and brown trout (Salmo trutta). It then compares these findings with existing literature data for their wild counterparts to gain insights into the influence of aquaculture on their growth patterns. Using a simple power function, W=α〖L_T〗^β where W represents the fish's weight, and LT represents the fish's total length, the LWR is determined. The estimated β values indicate positive allometric growth for rainbow and brook trout, whereas brown trout exhibit an isometric growth pattern. The estimated condition factors ranged from 0.992 to 1.442 for rainbow trout, 0.665 to 1.731 for brook trout, and 0.841 to 1.321 for brown trout, with significant differences observed among them (Kruskal-Wallis test, p < 0.05). Compared with literature data from their wild counterparts, notable variations in growth patterns emerge, particularly evident in rainbow and brook trout, possibly illustrating the contrasting effects of aquaculture.

Keywords

References

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Details

Primary Language

English

Subjects

Aquaculture and Fisheries Stock Assessment

Journal Section

Research Article

Authors

Ömerhan Dürrani ^*
0000-0003-1775-8662
Türkiye

Early Pub Date

September 29, 2023

Publication Date

October 11, 2023

Submission Date

August 23, 2023

Acceptance Date

September 20, 2023

Published in Issue

Year 1970 Volume: 6 Number: 4

DOI

https://doi.org/10.3153/AR23024

IZ

https://izlik.org/JA62BA89FS

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RIS / Bibtex

APA

Dürrani, Ö. (2023). Do the length-weight relationships and condition factors of farmed rainbow trout, brook, and brown trout differ from their wild counterparts? Aquatic Research, 6(4), 253-259. https://doi.org/10.3153/AR23024

Do the length-weight relationships and condition factors of farmed rainbow trout, brook, and brown trout differ from their wild counterparts?

Do the length-weight relationships and condition factors of farmed rainbow trout, brook, and brown trout differ from their wild counterparts?

Abstract

Keywords

Yetiştirilen gökkuşağı alabalığı, kaynak alabalığı ve benekli alabalığının boy-ağırlık ilişkileri ve kondisyon faktörleri, doğal ortamda bulunan türlerden farklı mı?

Öz

Anahtar Kelimeler

References

Details

Primary Language

Subjects

Journal Section

Authors

Early Pub Date

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

Cite