Life history aspects of carp (Pisces : Cyprinidae) in a dam lake ecosystem: current status and future needs

2017 ◽  
Vol 68 (10) ◽  
pp. 1912 ◽  
Author(s):  
Ozlem Ablak Gurbuz
Keyword(s):  
Condition Factor ◽  
Fork Length ◽  
Current Status ◽  
Lake Ecosystem ◽  
Growth Coefficient ◽  
Positive Effects ◽  
Males And Females ◽  
Egg Diameter ◽  
Aquaculture Production ◽  
Growth And Reproduction

An increase in aquaculture production may have positive effects on both food resources and a country’s economy. Carp (Cyprinus carpio L.) is the most common cyprinid species in Turkey and accounts for approximately one-fifth of total inland water aquaculture production. However, carp production in Turkey has decreased in recent years. Changes in carp population of Hirfanli Dam were compared with previous studies in similar and different habitats worldwide. The population structure, growth and reproduction of carp were investigated. The length–weight relationships for the carp population of Hirfanli Dam indicated negative allometric growth in males and females, but the condition factor was greater for these carp than carp elsewhere. Asymptotic length and the growth coefficient were 89.42cm and 0.071year–1. Fecundity was positively correlated with fork length, total weight, gonad weight and age. The carp population of Hirfanli Dam evaluated in the present study appeared to have a lower fecundity and smaller egg diameter compared with other carp populations.

scholarly journals Some aspects of the biology of Abu mullet Liza abu (Heckel, 1843) in the Orontes River, Turkey

2016 ◽  
Vol 74 (2) ◽  
pp. 49-55 ◽  
Author(s):  
Sezen Ay ◽  
Gülnaz Özcan
Keyword(s):  
Condition Factor ◽  
Growth Parameters ◽  
Fork Length ◽  
Spawning Period ◽  
Female Ratio ◽  
Liza Abu ◽  
The Mean ◽  
Egg Diameter ◽  
Male To Female ◽  
Growth And Reproduction

AbstractThe age, growth and reproduction are described for 411 individuals of abu mullet from the Orontes River in Turkey between May 2011 and April 2012. The overall male to female ratio was 1:1.29. Fork length of all individuals ranged from 2.2 to 18.5 cm and total weight from 1.85 to 66.40 g. Isometric growth was observed for males (b=2.938) and all individuals (b=2.907); positive allometric growth was observed for females (b=3.246). The von Bertalanffy growth parameters based on data from otoliths were L∞ = 19.48 cm, k=0.258 year−1 and t0=−1.738 years for males, L∞ = 20.31 cm, k=0.313 year−1 and t0=−1.432 years for females. The growth performance index (Φ) was found to be 1.99 for males, 2.11 for females and 2.18 for all individuals. The mean condition factor (K) was calculated as 0.792±0.027 for males and 0.835±0.030 for females. Length at maturity was 11.49 cm for males and 11.82 cm for females. The fecundity was 14413±1569 with an egg diameter of 0.44±0.07 mm. Spawning period was between April and August. Abu mullet has acclimated well in the Orontes River and is capable of successful reproduction. Its calculated age and size at maturity was smaller and younger than for other populations.

scholarly journals Growth and reproduction properties of endemic Capoeta kosswigi and Barbus ercisianus in the Deliçay Stream (Van, Turkey)

2021 ◽  
Vol 38 (3) ◽  
pp. 293-302
Author(s):  
Ataman Altuğ Atıcı ◽  
Ahmet Sepil ◽  
Fazıl Şen ◽  
Asude Çavuş
Keyword(s):  
Sexual Maturity ◽  
Condition Factor ◽  
Fork Length ◽  
Lake Van ◽  
Reproductive Characteristics ◽  
Lake Van Basin ◽  
Growth And Reproduction

In this study, the growth and reproductive characteristics of Capoeta kosswigi Karaman, 1969 and Barbus ercisianus Karaman, 1971, which are endemic to the Lake Van Basin, in Deliçay (Van) were investigated. A total of 309 C. kosswigi and 288 B. ercisianus specimens were caught by electrofishing between April and August 2018. The fork length of C. kosswigi and B. ercisianus ranged from 3.7-26.1 cm and from 4.3-22.7 cm, and the total weights ranged from 0.6-227.4 g and from 1.2-140.0 g, respectively. The most intensive catching was in C. kosswigi population of 5.0-6.9 (27.5%) cm and 0-19.9 (67.0%) g in the groups, and 12.0-13.9 (24.7%) cm and 0-9.9 (23.3%) g groups in B. ercisianus. Condition factor was determined as 1.305±0.008 (0.798-1.886) in C. kosswigi and 1.158±0.006 (0.864-1.559) in B. ercisianus. The length-weight relationships were calculated as W = 0.01435 × L2.952 (r2 = 0.996) for C. kosswigi and W = 0.01276 × L2.959 (r2 = 0.994) for B. ercisianus. The M:F ratio was calculated as 1:0.15 in C. kosswigi and 1:0.64 in B. ercisianus. It was established that C. kosswigi attained sexual maturity when they reached to 11 cm fork length for males, 18 cm fork length for females. Maturation of B.ercisianus individuals occurred at 9 cm fork length in males and 12 cm fork length in females. The spawning in C. kosswigi was observed from 1st week of May to 2nd week of July, and in B. ercisianus from 1st week of May to 1st week of August. It may be suggested that minimum catching size must be 20 cm fork length for C. kosswigi and 15 cm fork length for B. ercisianus.

scholarly journals Studies on Length-weight and Length-length Relationships, Relative Condition Factor and Fulton’s Condition Factor of Hemiculter leucisculus (Pisces: Cyprinidae) from the Southwestern Caspian Sea Basin

Our Nature ◽  
2013 ◽  
Vol 11 (1) ◽  
pp. 25-30
Author(s):  
H. Mousavi-Sabet ◽  
A. Habibi ◽  
O. Bagherpur
Keyword(s):  
Caspian Sea ◽  
Condition Factor ◽  
Fork Length ◽  
Allometric Growth ◽  
Growth Trend ◽  
B Values ◽  
Total Length ◽  
Relative Condition Factor ◽  
Males And Females ◽  
Hemiculter Leucisculus

In this study, length-weight (LWR) and length-length relationships (LLRs), relative condition factor (krel) and Fulton’s condition factor (k) of 235 Hemiculter leucisculus Basilewsky were determined between the periods of March 2012 to February 2013 in Sefidroud River, in the Southwestern Caspian Sea basin. The maximum recorded total length for males and females were 16.90 cm and 18.10 cm, respectively. The length-length relationships among the total length (TL), fork length (FL) and standard length (SL) for H. leucisculus were found to be highly significant (r2>0.968, p<0.001). The length-weight relationship shows the obtained b values for males, females and male-females were 2.549, 2.680 and 2.465 respectively, which indicated a negative allometric growth trend of this species. Also, relative condition factor (Krel) for males, females and male-females were 0.710, 0.622 and 0.743 respectively and Fulton’s condition factor (K) for males, females and male-females were 0.922, 0.842 and 0.843 respectively. These results will be useful for ?shery managers to impose adequate regulations for sustainable ?shery management.DOI: http://dx.doi.org/10.3126/on.v11i1.8240 Our Nature Vol.11(1) 2013: 25-30

scholarly journals Age, Growth and Reproduction of Coryphaena hippurus (Linnaeus, 1758) in Maltese Waters, Central Mediterranean

2015 ◽  
Vol 16 (2) ◽  
pp. 334 ◽  
Author(s):  
M. GATT ◽  
M. DIMECH ◽  
P. J. SCHEMBRI
Keyword(s):  
Fork Length ◽  
Longline Fishery ◽  
Central Mediterranean ◽  
Coryphaena Hippurus ◽  
Daily Increments ◽  
Males And Females ◽  
Longline Fisheries ◽  
Fish Aggregating Devices ◽  
Growth And Reproduction ◽  
Age Reading

Age, growth and reproduction of the dolphinfish Coryphaena hippurus Linnaeus, 1758 collected from the Central Mediterranean in the period 2004-2010 by the traditional Maltese fish aggregating devices (FAD) and surface longline fisheries were studied. The a and b parameters of the length-weight relationship for fish 11-142 cm fork length (FL) (n = 4042) were determined as a = 0.018 and 0.022 with b = 2.85 and 2.79, for males and females respectively. The counting of annual increments from dorsal spines of >65 cm FL dolphinfish at X25 magnification (n = 47) permitting an age reading resolution in years  , and the counting of daily increments from sagittal otoliths of <65 cm FL dolphinfish at X400 magnification (n = 583) permitting an age reading resolution in days, were estimated; the von Bertalanffy growth model applied to these fish gave the following parameters: L∞ = 107.8 cm FL and 120.2 cm FL, and K = 1.9 yr-1 and 1.56 yr-1, for males and females respectively. The maximum age observed was 2 years. Size at 50% maturity for fish 10-131 cm FL (n = 1376) was 58.9 cm FL and 62.5 cm FL for males and females, respectively. The sex ratio for the fish sampled from the FAD fishery (10.5-131 cm FL) was 1:1.54 (M:F) and for dolphinfish sampled from the surface longline fishery (91-130 cm FL) was 1:0.76 (M:F).  Back-calculated hatch dates from age-0 dolphinfish (n = 518) suggested that spawning occurs from June to September with the highest levels in June. This study is the first to use dorsal spines to determine the age of adult dolphinfish.

scholarly journals The growth pattern and condition factors of three spot gourami Trichopodus trichopterus (Pallas, 1770) from the Lempake Dam, East Kalimantan

2021 ◽  
Vol 21 (3) ◽  
pp. 215-233
Author(s):  
Jusmaldi Jusmaldi ◽  
Ardana Reswari Dianingrum ◽  
Nova Hariani
Keyword(s):  
Body Weight ◽  
Sex Ratio ◽  
Growth Pattern ◽  
Condition Factor ◽  
Growth Patterns ◽  
Growth Coefficient ◽  
East Kalimantan ◽  
Relative Condition Factor ◽  
Fish Traps ◽  
Males And Females

The growth pattern and condition factors of three spots gourami Trichopodus trichopterus (Pallas, 1770) from Lempake Dam, East Kalimantan, are not yet informed. These studies aimed to investigate fishes' length and body weight, sex ratio, length-bodyweight relationships, growth patterns, and condition factors. The collection of fish sampling was carried out monthly from February to May 2020. A total of 912 individual samples of sepat rawa fish were caught by 15 fish traps using a purposive sampling method at three stations. This research showed that the total length of the fishes analyzed ranged from 31.68 to 103.53 mm, while body weight ranged from 1.12 to 7.22 g. The sex ratio in males and females was 1:1.19. The regression model of the length-body weight relationships calculated was W=3x10-5L2.861 for total samples, W=5x10-5L2.710 for males, and W=2x10-5L2.977 for females. The length-body weight was obtained strong relationships in all samples and sexes, with the regression coefficient (r) ranging from 0.965 to 0.977. An isometric growth pattern and the growth coefficient “b”=2.977 was observed in females, while a negative allometric growth pattern in males and both sexes, with the growth coefficient “b”= 2.710 and “b”=2.861. The values of relative condition factor (Kn) observed for females were ranged from 1.472 to 1.555 and for males ranged from 1.024 to 1.082. The growth pattern and relative condition factor of three spot gourami in the Lempake Dam were affected by the number of fishes in gonad mature condition and body shape.

scholarly journals Growth And Reproduction Of Mulloway Fish (Argyrosomus japonicus) In Estuary Area, Merauke Regency

2018 ◽  
pp. 35
Author(s):  
Sunarni Sunarni ◽  
Modesta R Maturbongs
Keyword(s):  
Condition Factor ◽  
Growth Patterns ◽  
Fish Growth ◽  
Research Station ◽  
Maturity Level ◽  
Male And Female ◽  
Coastal City ◽  
Management Effort ◽  
Males And Females ◽  
Growth And Reproduction

Gulamah fish bioecological research (Argyrosomus japonicas) in the estuary area of the coastal city of Merauke is very important to be done as a management effort. The purpose of the research on the bioecological of Gulamah fish in the estuary area of the coastal city of Merauke is to study aspects of population dynamics and reproductive biology aspects. The study was conducted in the Estuari area of the coastal city of Merauke for 3 months in November 2017 - January 2018. The research station was determined by purposive sampling. Gulamah fish growth patterns based on long and heavy relationship data are allometric negative. fish Gulamah males and females both at station I and station II also have relatively the same condition factor. The sex ratio between male and female Gulamah fish is 1: 1. Maturity level of gonad fish Gulamah caught during the research is still at TKG 1.

scholarly journals Relative condition factor, length-weight relationship, and growth of three-spotted flounder, Pseudorhombus triocellatus from Parangipettai Coast, India

2019 ◽  
Vol 20 (2) ◽  
pp. 373-379
Author(s):  
PALANIVEL BHARADHIRAJAN ◽  
GOPALAN MAHADEVAN ◽  
PERUMAL MURUGESAN ◽  
SAMANTHAM MURUGAN ◽  
MOJTABA POULADI ◽  
...  
Keyword(s):  
Condition Factor ◽  
B Value ◽  
Limited Information ◽  
Growth Coefficient ◽  
Weight Relationship ◽  
Relative Condition Factor ◽  
Basic Parameters ◽  
Males And Females ◽  
By Catch ◽  
Trawl Catches

Bharadhirajan P, Mahadevan G, Murugesan P, Murugan S, Pouladi M, Abbaspour Naderi R. 2019. Relative condition factor, length-weight relationship, and growth of three-spotted flounder, Pseudorhombus triocellatus (Bloch & Schneider, 1801) from Parangipettai Coast, India. Biodiversitas 20: 373-379. The three-spotted flounder, Pseudorhombus triocellatus is usually caught as trawl by-catch from Parangipettai coastal waters but regrettably, limited information on its age structure and growth is available. Hence, the present study aims to understand some basic parameters of its biology and growth. A total of 759 specimens (360 males and 399 females) ranging from 4 cm to 13 cm in total length (TL) and 5.26-35.41 g in weight were collected from the trawl catches of Parangipettai and Mudasalodai landing center during January–December 2015. The estimated growth coefficient (b) value for males (2.797) was greater than 3 and for females (3.023) was less than 3. The relative condition factor (Kn) values of females were higher than males except during February, June, and September. The values of asymptotic length (L∞) obtained in this study using various methods didn’t vary significantly (P>0.05). The most appropriate values of asymptotic length (Lα) for males were 137.11 mm and for females were 141.75 mm. The most appropriate values of growth rate (K) for males were 0.397 yr-1 and for females were 0.410 yr-1. The estimated length at age 0 (t0) for males and females were 0.197 mm and 0.292 mm, respectively. The longevity (tmax) of males and females P. triocellatus were 2.04 years and 2.24 years, respectively. The result of this study provides basic information for future studies.

scholarly journals Lengths, length-length relationships and condition factor of Indian catfish Gagata cenia (Hamilton, 1822) from the Padma River, Bangladesh

2013 ◽  
Vol 1 (1) ◽  
pp. 22 ◽  
Author(s):  
Nipa Chaki ◽  
Md. Abdur Razzaq Joadder ◽  
Md. Foyzul Hassan Fahad
Keyword(s):  
Condition Factor ◽  
Fork Length ◽  
Rank Test ◽  
Strong Positive Correlation ◽  
Body Depth ◽  
Linear Relationships ◽  
Indian Catfish ◽  
Males And Females ◽  
Padma River ◽  
Positive Correlations

This study described some biological parameters including lengths, length-length relationships and Fulton’s condition factors of Gagata cenia in the Padma River of Bangladesh, based on 1120 specimens collected from May to November, 2012. Maximum 39.78% female fishes were belonging to the length category of 55-60 mm whereas 51.06% male were belonging to 50-55 mm. The highest mean total lengths were found 66.51±10.28 mm (combined sex), 70.12±09.49 mm (female) and 61.08±09.45 mm (male) in the month of June. Similar findings are also presented for standard length, fork length, body depth, dorsal length, pectoral length, pelvic length and anal length. Linear relationships were also studied among mentioned lengths. Strong positive correlations were observed in all cases. Speraman’s Rank test indicated that there was a strong, positive correlation between total length and condition factor in female, which was statistically significant (rs=0.210, P=0.044). In male, there was no significant correlation between these two (rs=0.167, P=0.262). The Mann-Whitney U-test showed that the female individuals had the highest condition factor (Mean rank of 79.76). There was a statistically significant differences in the Fulton’s condition factor between males and females (two tailed, Mann-Whitney U = 1324).

Length–Weight Relationship for Pomfret

1972 ◽  
Vol 29 (7) ◽  
pp. 1079-1081
Author(s):  
J. I. Manzer
Keyword(s):  
Size Range ◽  
Fork Length ◽  
Mesh Size ◽  
Gulf Of Alaska ◽  
Single Equation ◽  
Covariance Analysis ◽  
Allometric Equations ◽  
Pooled Data ◽  
Weight Relationship ◽  
Males And Females

The length–weight relationship for 298 pomfret (Brama japonica) ranging in fork length from 30 to 49 cm, and caught in 1956 and 1957 in the Gulf of Alaska by gillnets varying in mesh size from [Formula: see text] (63 mm) to [Formula: see text] inches (133 mm) was examined. Covariance analysis of the data indicated that within years the length–weight relationship did not differ between males and females; and, on the average, both males and females of a particular length were significantly heavier in 1956 than in 1957. Allometric equations for each year based on data for sexes combined are considered more appropriate than a single equation based on pooled data. The equations relating weight in kilograms to length in centimeters, for 1956 and 1957, respectively, are[Formula: see text]and apply to the lower third of the known size range for pomfret in the Gulf of Alaska.

scholarly journals The occurrence of Contracaecum sp. larvae (Nematoda : Anisakidae) in the catfishClarias gariepinus (Burchell) from Lake Chivero, Zimbabwe

2004 ◽  
Vol 71 (1) ◽  
Author(s):  
M. Barson
Keyword(s):  
Significant Relationship ◽  
Condition Factor ◽  
Clarias Gariepinus ◽  
Parasite Prevalence ◽  
Body Cavity ◽  
The Body ◽  
Nematode Parasites ◽  
Significant Difference ◽  
Third Stage ◽  
Males And Females

Clarias gariepinus were collected from Lake Chivero, Zimbabwe, and examined for nematode parasites from November 2000 to May 2002. Of the 202 specimens collected, 42.6 % were infected with third-stage larvae of Contracaecum sp. in the body cavity. The intensity of the infection was 1-7 worms per fish (mean intensity = 2.2). Seasonal variation in the prevalence of the parasite was not obvious and there was no significant difference in the prevalence of infection between males and females (c2 = 2.228; P > 0.05). No significant relationship between host size and prevalence was established. There was also no significant relationship between intensity and the body condition factor (r = 0.11; P > 0.05). The low parasite prevalence may have been caused by the disruption of the infection cycle since piscivorous birds, which are the final hosts of the parasite, do not feed on C. gariepinus in Lake Chivero.

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