scholarly journals Population Structure and Some Growth Properties of Gibel Carp (Carassius gibelio) in a Mesotrophic Lake

2016 ◽  
Vol 8 (3) ◽  
pp. 286-291 ◽  
Author(s):  
Hakki DERELI ◽  
Ezgi DİNÇTÜRK
Keyword(s):  
Population Structure ◽  
Trophic Status ◽  
Gibel Carp ◽  
Trophic State Index ◽  
Von Bertalanffy ◽  
Total Length ◽  
Carassius Gibelio ◽  
Mesotrophic Lake ◽  
Growth Properties ◽  
Lake Beysehir

The hereby study investigated gibel carp (Carassius gibelio) in a mesotrophic lake (Lake Beyşehir, Turkey) from April 2013 to March 2014, in order to outline population structure and some growth properties of the species. Two water quality variables (Chlorophyll-a, Trophic State Index (TSI)) were detected seasonally to define trophic status of the lake. Length and weight distributions, length - weight relationship, sex ratio, gonadosomatic index (GSI), condition factor (CF) and von Bertalanffy equation were calculated for C. gibelio sampled monthly. Trophic status of the lake was defined as mesotrophic. Total length and weight of C. gibelio samples was determined in the range of 8.5 and 28.4 cm and 15 and 408 g, respectively. Mean total length and weight of individuals were calculated as 17.5 ± 2.37 cm and 88.6 ± 39.02 g, respectively. There was a negative allometry between length and weight for C. gibelio. The fish samples were composed of 52% females and 48% males, between II and VII years old. Spawning period of the species occurred between April and June after GSI values reached their maximum in March. The CF values were validated between 1.5-1.7 besides the mean rate of females and males were 1.6 and 1.5, respectively. The parameters of von Bertalanffy equation were calculated as L∞: 19.8 cm, W∞: 652.9 gr, k: 0.934. In conclusion, C. gibelio has almost lost the economic value since the individuals are smaller than market size (≥ 250 g), probably due to lack of nutrients/mesotrophic situation of Lake Beyşehir.

scholarly journals Growth parameters of invasive gibel carp Carassius gibelio (Bloch, 1782) in Lake Marmara (Turkey)

2020 ◽  
Vol 49 (4) ◽  
pp. 383-390
Author(s):  
Ali Ilhan ◽  
Hasan M. Sarı ◽  
Irmak Kurtul
Keyword(s):  
Sex Ratio ◽  
Growth Parameters ◽  
Mesh Size ◽  
Gibel Carp ◽  
Western Region ◽  
Von Bertalanffy ◽  
Maximum Condition ◽  
Monthly Basis ◽  
Male Ratio ◽  
Carassius Gibelio

AbstractThe objective of this study was to determine growth parameters, such as age–length and length–weight relationships, as well as condition factors and sex ratio, of the Carassius gibelio (Bloch, 1782) population in Lake Marmara (western region of Turkey), which is one of the most important fishing areas. Fish were caught on a monthly basis by gillnets and trammel nets (mesh size 10–50 mm) between March 2012 and February 2013. A total of 1058 specimens (809 females and 249 males) were examined. The female–male ratio was 1:0.31. The maximum age was determined as VI and V for females and males, respectively. The total length of females and males ranged from 10.0 to 27.5 cm and from 10.2 to 24.0 cm, respectively. Their weight varied from 17.1 to 378.4 g and from 17.7 to 244.9 g, respectively. Length–weight relationship parameters were a = 0.014 and b = 3.040 for females and a = 0.015 and b = 3.039 for males. Von Bertalanffy growth parameters of the C. gibelio population were as follows: L∞ = 35.86 cm, k = 0.189 year−1, t0 = −1.238 years. Minimum and maximum condition factors were 1.56 for females in October and 1.82 in May and 1.67 for males in September and 1.94 in January.

scholarly journals Several Growth Characteristics of an Invasive Cyprinid Fish (Carassius gibelio Bloch, 1782)

2013 ◽  
Vol 5 (2) ◽  
pp. 133-138 ◽  
Author(s):  
Sait BULUT ◽  
Ramazan MERT ◽  
Beklan ALGAN ◽  
Musa ÖZBEK ◽  
Bülent ÜNAL ◽  
...  
Keyword(s):  
Condition Factor ◽  
Growth Parameters ◽  
Gibel Carp ◽  
Growth Equation ◽  
Von Bertalanffy ◽  
Age Composition ◽  
Carassius Gibelio ◽  
The Mean ◽  
Von Bertalanffy Growth Equation ◽  
Index Value

Age composition, length-weight relationships, growth, and condition factors of the gibel carp (Carassius gibelio Bloch, 1782) were determined using specimens collected from Seyitler Reservoir between July 2005 to June 2006. A total of 149 gibel carp were observed and examined. The age composition of the samples ranged between I and VII years of age. It has been determined than 82.55% of the obtained samples are comprised of females, 16.11% is comprised of males and 1.34% is comprised of immature. The population is dominated by females able to reproduce gynogenetically. The mean fork lengths and mean weights of the population were 14.8-32.5 cm and 43.1-807.3 g respectively. The length-weight relation were calculated as W = 0.0696 L2.132, r=0.838 for females, for males W = 0.2942 L2.6417 r=0.784 and W = 0.0274 L2.9382, r=0.813 for all samples. The mean Fulton Condition Factor was calculated as 2.342 for females, 2.064 for males and 2.276 for all samples. Age-length and age-weight relations were determined according to von Bertalanffy growth equation formula. Growth parameters of the population were Lt = 48.09 [1-e-0.093(t+0.29)], and Wt=2323.62 [1-e-0.093(t+0.29)]2.9382. The growth performance index value (Ø´) was computed as 5.37 for all specimens.

Population structure and some growth properties of chub Squalius cephalus (Linnaeus, 1758) in Devres Stream of Kızılırmak River, Turkey

2017 ◽  
Vol 5 (3) ◽  
pp. 11 ◽  
Author(s):  
Semra Benzer ◽  
Ali Gül
Keyword(s):  
Body Weight ◽  
Population Structure ◽  
Condition Factor ◽  
Fork Length ◽  
Von Bertalanffy ◽  
Growth Properties ◽  
Growth Equations ◽  
Squalius Cephalus

This study describes the population structure, growth and condition factor of chub (Squalius cephalus) in Devres Stream of Kızılırmak River caught between June 2010 and June 2011. S. cephalus individuals ranging between I and VI years old were caught from Devres Stream. Studied individuals were between I and VI years old and their sex was determined as 51.67% male and 48.33% female. The fork length and body weight ranged from 8.79 – 19.64 cm and 9.73 – 126.60 g respectively. The von Bertalanffy growth equations were found: Lt = 27.163 [1 – e–0.159 (t+1.47)] for females and Lt = 27.078[1 – e–0.160 (t+1.46)] for males; Wt = 286.14 [1 – e–0.159 (t+1.47)]3.1049 for females and Wt = 284.43 [1 – e–0.160 (t+1.46)]2.9692 for males. The condition factor was calculated as 1.432 and 1.378 for females and males respectively.

Heterozygous depletion of pik3r1 improves growth and feed conversion efficiency in Gibel carp (Carassius gibelio)

Aquaculture ◽  
2021 ◽  
pp. 737207
Author(s):  
Jianfei Huang ◽  
Chuang Shi ◽  
Yanping Gao ◽  
Jingzhi Su ◽  
Yuqin Shu ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Gibel Carp ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Carassius Gibelio

scholarly journals Characterization of Virulence Properties of Aeromonas veronii Isolated from Diseased Gibel Carp (Carassius gibelio)

2016 ◽  
Vol 17 (4) ◽  
pp. 496 ◽  
Author(s):  
Jingjing Sun ◽  
Xiaojun Zhang ◽  
Xiaojian Gao ◽  
Qun Jiang ◽  
Yi Wen ◽  
...  
Keyword(s):  
Gibel Carp ◽  
Aeromonas Veronii ◽  
Carassius Gibelio ◽  
Virulence Properties

Age, Growth and Sex Ratio of the Azorean Rock-Pool Blenny, Parablennius Sanguinolentus Parvicornis

1995 ◽  
Vol 75 (3) ◽  
pp. 751-754 ◽  
Author(s):  
Ricardo Serrão Santos ◽  
Richard D. M. Nash ◽  
Stephen J. Hawkins
Keyword(s):  
Sex Ratio ◽  
Growth Function ◽  
Early Growth ◽  
Reproductive Season ◽  
First Year ◽  
Von Bertalanffy ◽  
Rock Pool ◽  
Total Length ◽  
Von Bertalanffy Growth Function ◽  
One Year

The age and population structure of Parablennius sanguinolentus parvicornis (Valenciennes) (Pisces: Blenniidae) from the Azores have been studied. Total length and weight relationships are given for each sex. Age study was based on otoliths readings. The von Bertalanffy growth function was applied to describe the growth in total length with age. At the end of the first year mean (±SD) total length was significantly different in males (7.1 ±1.5 cm) and females (6.1 ±1.2 cm). One-year-old males participate in reproduction as satellites, whereas females do not. The implications of this in early growth rate of the males is discussed. During the two most important months of the reproductive season (i.e. June and July), the sex ratio was significantly biased towards males, particularly in the larger size classes.

Genetic diversity of picoeukaryotes in eight lakes differing in trophic status

2011 ◽  
Vol 57 (2) ◽  
pp. 115-126 ◽  
Author(s):  
Biying Zhao ◽  
Meijun Chen ◽  
Ying Sun ◽  
Jiaxin Yang ◽  
Feizhou Chen
Keyword(s):  
Genetic Diversity ◽  
Community Composition ◽  
Trophic Status ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Oligotrophic Lake ◽  
Rrna Genes ◽  
Multivariate Statistical ◽  
Mesotrophic Lake ◽  
Gradient Gel Electrophoresis ◽  
Lake Xuanwu

The genetic diversity of picoeukaryotes (0.2–5.0 µm) was investigated in 8 lakes differing in trophic status in Nanjing, China. Denaturing gradient gel electrophoresis (DGGE) and cloning and sequencing of 18S rRNA genes were applied to analyze the picoeukaryotic communities. DGGE analysis showed that among the 8 lakes, the diversity of picoeukaryotes was greatest in the mesotrophic Lake Nan (24 bands) and least in the oligotrophic Lake Qian (12 bands). Cluster analysis of DGGE profiles revealed that the 8 lakes were grouped into 2 distinct clusters. Cluster 1 contained lakes Mochou, Zixia, Huashen, Nan, Pipa, and Qian, while cluster 2 contained lakes Xuanwu and Baijia. Clone libraries were constructed from the mesotrophic Lake Xuanwu and the oligotrophic Lake Zixia, and the 2 libraries were compared using the program LIBSHUFF. This analysis indicated that the picoeukaryotic community composition differed significantly between the 2 lakes (p = 0.001). A total of 25 operational taxonomic units were detected; 18 (62 clones) were related to known eukaryotic groups, while 7 (30 clones) were not affiliated with any known eukaryotic group. Alveolates and stramenopiles were the dominant groups in Lake Xuanwu, while alveolates and chlorophyta predominated in Lake Zixia. Multivariate statistical analysis indicated that the differences in the picoeukaryotic community composition of the 8 lakes might be related to trophic status and top-down regulation by metazooplankton.

Sign in / Sign up

Export Citation Format

Share Document