PÜLÜMÜR NEHRİ'NDE YAŞAYAN Acanthobrama marmid Heckel, 1843 POPULASYONUNUN BAZI BÜYÜME ÖZELLİKLERİNİN BELİRLENMESİ

Abstract

In this study, some growth features have been investigated like sex distribution, length and weight relationship, age determination, von Bertalanffy growth parameters and condition factor of population Acanthobrama marmid Heckel, 1843 in Pülümür River. 276 samples examined during the study consisted of 157 females and 119 males and the female/male ratio was calculated as 1/0.758. It was determined that the total length and weight values varied between 7.8-21.1cm and 5.6-121.21 g in all individuals. The population has showed distribution between I-V age groups. Length-weight equation in were determined as W=0.0063L3.248 (R2=0.960) in females, W=0.0062L3.252 (R2=0.958) in males and W=0.0063L3.249 (R2=0.959) in all individuals. Positive allometric growth was observed for both sexes due to the “b” values were statistically different from 3. The von Bertalanffy growth equations were determined Lt=27.00 [1–e–0.247(t+0.876)] and Wt =249.66 [1-e–0.247(t+0.876)]3.248 for female, Lt=27.55 [1–e–0.232(t+0.952)] and Wt=280.02 [1–e–0.232(t+0.952)]3.252 for male, Lt=27.34 [1–e–0.238(t+0.916)] and Wt=261.55 [1–e–0.238(t+0.916)]3.249 for all individuals. Growth performance index (Ф') value was calculated as 2.250 for all individuals. Condition factor varies between 0.548-1.653 in female and 0.567-1.670 in male. It was observed that the value of the condition factor generally increased with age.

Pülümür Nehri (Tunceli)’ndeki Salmo trutta macrostigma (Dumeril, 1858), Cyprinion macrostomum Heckel, 1843 ve Oxynoemacheilus tigris (Heckel, 1843)’in Boy-Ağırlık İlişkileri

“…Pülümür ve Munzur Nehrinin birleşme noktasının yaklaşık 25 km güneyinde Uzunçayır Barajı bulunmaktadır. Pülümür Nehri ve Uzunçayır Barajı'nda daha önce yapılmış çalışmalar mevcuttur (Saler & Bulut, 2011;Saler vd., 2014;Özcan, 2019;Özcan, 2020;Özcan & Serdar, 2021a;Özcan & Serdar, 2021b).…”