Length-weight relationships, condition factor and morphometric characteristics of ten Spirlin (Alburnoides Jeitteles, 1861) species from Iranian inland waters

Abstract

The length-weight relationships, condition factor and morphometrics of 10 species of the genus Alburnoides are provided from Iranian inland water. The a values ranged from 0.0037 (Alburnoides damghani) to 0.0128 (Alburnoides namaki), the b values ranged from 2.87 (A. namaki) to 3.50 (A. damghani) and the coefficient of variation (r2) ranged from 0.90 (Alburnoides samii) to 0.99 (A. namaki). Of these, Alburnoides coadi, A. damghani and Alburnoides eichwaldii show positive allometric growth while all the others are isometric growth. Mean condition factors (K) varied from 0.84 (Alburnoides holciki) to 1.37 (Alburnoides idignensis).

Length-Weight Relationships of Eight Fish Species in the World’s Largest Water Diversion Project

“…In this study, the r 2 values of all fsh species were >0.95 and the range of b values was between 2.996 and 3.341, which was consistent with the expected range of 2.5-3.5 [3]. Many factors, such as growth phase, gender, food, fshing behavior, seasonality, and temperature, may lead to the diferences of LWRs [3,5,6]. However, abovementioned factors were not taken into account in this study.…”

“…Te length-weight relationships (LWRs) of fsh species are important for estimating the weight of a specimen from the length, and the reverse is also true [5,6]. Together with data on growth rates, sex ratio, length-at-age, fecundity, size at frst maturity, spawning stock biomass, and recruitment, LWRs can greatly assist in the research of population status and management [3].…”

The Length-Weight Relationship and Condition Factors of Twelve Fish Species, with Special Reference to Cichlid species from the Mediterranean Lagoon, Lake Manzala, Egypt

“…The mean b value of length-weight relationships based on TL was between 2.83 and 3.34 for all twelve species, being within the expected range of 2 to 4 (Tesch, 1971). Variation in b value in fish might be due to several factors, including habitat, species, season, locality, health, sex, gonad maturity, stomach fullness and preservation techniques (Le Cren, 1951;Esmaeili, 2001;Sadeghi & Esmaeili, 2018;Eagderi et al, 2020;Purrafee Dizaj et al, 2020;Al Jufaili et al, 2021). Differences in the LWRs could be due to the combination of one or more of the above factors.…”

Length-Weight Relationship of Eight Species of Fish Caught by Traditional Papuan Fishers in Youtefa Bay, Indonesia

“…LWR has an important and significant role in providing information on fish population dynamics, distribution, stock estimates, mor-tality, and morphology (Froese 2006;Rábago-Quiroz et al, 2017;Jafari-Patcan et al, 2018;Akter et al, 2019;Reis & Ateş, 2020), including the morphological differentiation between different populationts of the same fish species (Binohlan & Pauly, 2000). LWR can also provide information on fish maturity, growth patterns, fish biomass (Schneider et al, 2000), and play an important role in fisheries status assessment (Eagderi et al, 2020) and environmental monitoring (Morey et al, 2003). Another important data in fisheries studies is the condition factor of each fish species.…”