scholarly journals Weight-length relationship and condition factor of Mugil cephalus (Linnaeus 1758, Mugilidea) in the special wildlife reserve of Gueumbeul (RSFG) in Senegal

2021 ◽  
Vol 9 (1) ◽  
pp. 104-110
Author(s):  
Amadou GUISSE ◽  
Guillaume KOUSSOVI ◽  
Farokh NIASS
Keyword(s):  
Condition Factor ◽  
Mugil Cephalus ◽  
Fish Ecology ◽  
Artisanal Fishery ◽  
Allometric Growth ◽  
Fundamental Parameters ◽  
Length Relationship ◽  
Significant Difference ◽  
Males And Females ◽  
Wildlife Reserve

The weight-length relationship and the condition factors are fundamental parameters with several uses in biology, fish ecology and fisheries management. Thus, in the Special Wildlife Reserve of Gueumbeul (SWRG) in Senegal, the weight-length relationship and condition factor were established for Mugil cephalus (Linnaeus 1758). A total of 311 individuals (97 females and 214 males) of M. cephalus were collected by the artisanal fishery using cast nets. The total length and weight ranged from 11.1 to 25 cm and 15.9 to 145.26 g, respectively. The results showed that in the SWRG, both in females (b = 2.60) and males (b = 2.899), M. cephalus had negative allometric growth. The analysis of variance showed no significant difference (p > 0.05) in the coefficients of determination between females (R = 0.96) and males (R = 0.84). Condition factors (K) were 3.07 and 1.23 for males and females respectively for M. cephalus in the reserve.

scholarly journals Morphometric characteristics of crayfish, Cherax gherardiae, from Maybrat, West Papua, Indonesia

2018 ◽  
Vol 26 (4) ◽  
pp. 223-230
Author(s):  
Yulianus Sedik ◽  
Dominggus Rumahlatu ◽  
Bambang Irawan ◽  
Agoes Soegianto
Keyword(s):  
Sexual Dimorphism ◽  
Sex Ratio ◽  
Carapace Length ◽  
Condition Factor ◽  
Carapace Width ◽  
Allometric Growth ◽  
Morphometric Characteristics ◽  
Significant Difference ◽  
West Papua ◽  
Males And Females

Abstract The objectives of this study were to determine the length-weight relationships (LWRs), chelae length (ChL)-width (ChW) relationships, carapace length (CL)-width (CW) relationships, sexual dimorphism, and condition factor (K) of Cherax gherardiae from Maybrat, West Papua Indonesia. The sex ratio of C. gherardiae was found to be 1.04:1. The LWRs for males, females, and all individuals were W = 0.225L1.96, W = 0.181L2.02, and W = 0.187L2.03, respectively. Males and females exhibited negative allometric growth (b<3). There was no significant difference in lengths between males and females; however, the weight of males was greater than that of females. The K values for males, females, and all individuals were 3.17, 3.09, and 3.13, respectively. The ChL of the crayfish ranged from 1.0 to 7.5 cm, and the ChW ranged from 0.4 to 2.5 cm. The CL of crayfish ranged from 1.6 to 6.0 cm, and the CW ranged from 0.6 to 4.1 cm. Males had longer chelae and carapaces than did females. There was no significant difference in chelae width or carapace width between males and females. The ChL-ChW relationships for males, females, and all individuals were ChW = 0.312ChL + 0.260, ChW = 0.397ChL - 0.050, and ChW = 0.345ChL + 0.119, respectively. The CL-CW relationships for males, females, and all individuals were CW = 0.750CL-0.955, CW = 0.526CL - 0.178, and CW = 0.635CL-0.543, respectively.

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.

scholarly journals Some population characteristics of Oxynoemacheilus angorae (Steindachner, 1897) from the Perşembe Plateau meandering streams in Ordu, Turkey

2021 ◽  
Vol 29 (2) ◽  
pp. 100-107
Author(s):  
Serdar Yedier ◽  
Derya Bostanci ◽  
Nazmi Polat
Keyword(s):  
Condition Factor ◽  
Fork Length ◽  
Population Characteristics ◽  
Allometric Growth ◽  
Male And Female ◽  
Meandering Streams ◽  
Black Sea Region ◽  
Total Length ◽  
Length Relationship ◽  
Average Condition

Abstract The aim of the current study was to determine the length-weight relationship (LWR) and length-length relationship (LLR) with condition factor (K) values for Oxynoemacheilus angorae from the Perşembe Plateau meandering streams in Ordu, Turkey. A total of 65 fish specimens, which were caught with electrofishing gear, were examined. Fish standard length (SL), fork length (FL), total length (TL), and body weight (W) were determined. There were no statistical differences between the measurements of male and female O. angorae specimens; therefore, the female and male specimens were evaluated together in the current study. The LWR equation and determination coefficient of O. angorae were W = 0.014 TL2.7359 (r2 = 0.9659). The 95% confidence interval of the b value for the O. angorae specimens from the Perşembe Plateau meandering streams was 2.7261 to 2.7435. In the present study, it was determined that O. angorae specimens showed negative allometric growth. Calculations of O. angorae TL-SL, TL-FL, and FL-SL relationship equations and determination coefficients were as follows: TL = 0.2091+1.1646 SL, (r2 = 0.986); TL = 0.1341+1.0301 FL (r2 = 0.9914); and FL = 0.0998+1.1261 SL, (r2 = 0.9868), respectively. A new maximum total length was recorded for O. angorae in this study. The average condition factor value of O. angorae was 0.9954. This value could have indicated that this species was encountering some problems in this habitat. The O. angorae parameters determined were the first data reported for the Perşembe Plateau meandering streams in Ordu, Turkey (Middle Black Sea Region).

scholarly journals Length-weight relation, condition factor and gonadosomatic index of the whitemouth croaker, Micropogonias furnieri (Desmarest, 1823) (Actinopterygii: Sciaenidae), caught in Lençóis Bay, state of Maranhão, eastern Amazon, Brazil

2017 ◽  
Vol 65 (1) ◽  
pp. 1-8 ◽  
Author(s):  
James Werllen de Jesus Azevedo ◽  
Antonio Carlos Leal de Castro ◽  
Marcelo Henrique Lopes Silva
Keyword(s):  
Sex Ratio ◽  
Rainy Season ◽  
Condition Factor ◽  
Gonadosomatic Index ◽  
Length Distribution ◽  
The State ◽  
Allometric Growth ◽  
First Semester ◽  
Length Relationship ◽  
Micropogonias Furnieri

Abstract The whitemouth croaker, Micropogonias furnieri, which is exploited off the state of Maranhão, Brazil, reinforces the need for maintenance programs of natural stocks of this species to assist in the management of this exploited resource. The aim of the present study was to describe aspects regarding its reproductive characteristics (gonadosomatic index and condition factor) and also the length distribution and weight-length relationships. The fish were caught in Lençóis Bay in the state of Maranhão (eastern Amazon) between June 2010 and July 2011. A total of 570 individuals were caught (318 males and 252 females). Differences in length were found between the sexes, with females larger than males. The sex ratio indicated a tendency for females to be more abundant in the rainy season (first semester), whereas males predominated in the dry season (second semester). The weight-length relationship indicated negative allometric growth for both sexes. The analysis of the variation in the condition factor suggests that lower values coincided with higher gonadosomatic index values and that this factor is a good reproductive indicator for M. furnieri in the region.

scholarly journals Pêche Et Caractéristiques Morphologiques D’un Poisson-Chat Endémique Synodontis Punctifer (Daget, 1964) Dans Le Barrage Électrique De Taabo (Côte d’Ivoire)

2018 ◽  
Vol 14 (15) ◽  
pp. 101
Author(s):  
Hervé Oussou Koffi ◽  
Diaha N’guessan Constance ◽  
Soro Yaya ◽  
N’Da Konan
Keyword(s):  
Sex Ratio ◽  
Condition Factor ◽  
Morphological Characteristics ◽  
Fishing Effort ◽  
Annual Production ◽  
Allometric Growth ◽  
Catch Per Unit Effort ◽  
Large Size ◽  
Unit Effort ◽  
Significant Difference

A study of Synodontis punctifer (family: Mochokidae) of Taabo Lake was conducted from October 2015 to September 2016. This was carried out so as to evaluate its quantity (biomass) caught by fishing and also its morphological characteristics. The fish were caught using gillnets at 4 sites of the lake and different measurements were made. The fishing effort was 23 to 11 fishermen / day in Taabo city, 17 to 11 fishermen / day in Courandjourou, 13 to 5 fishermen / day in Ahondo, and 8 to 3 fishermen / day in Taabo village. The catch per unit effort (CPUE) ranged from 17.7 to 3.7 g / fisherman / day, 9.2 to 1.2 g / fisherman / day, 8.3 to 0.7 g / fisherman /day, 8 to 1g / fisherman / day at Ahondo, Courandjourou, Taabo city and Taabo village, respectively. The overall annual production was estimated at 2199.3 kg, i.e. 817 kg (40%) at Ahondo, 788.3 kg (35%) at Courandjourou, 462.5 kg (20%) at Taabo, and 131.5 kg (5%) in Taabo village. The overall sex ratio (1: 1.33) was in favor of females. Individuals have negative allometric growth at all sites with values ranging from 1.72 to 2.89. The condition factor does not vary significantly between different categories of individuals (ANOVA, F = 2.79, p ˃ 0.05). A significant difference was observed between the average sizes of the individuals of the different sites (test, p˂0,05). The large size specimens were captured at Ahondo, mean (avg = 15.38 ± 1.68 cm FL). In Courandjourou, the sizes were intermediate (avg = 13.63 ± 1.64 cm LF). Smalls sizes have been observed in Taabo city (mean= 12.37 ± 1.24 cm FL) and Taabo village (mean= 15.58 ± 1.58 cm FL).

scholarly journals Effets saisonniers sur les relations poids-longueurs et coefficients de condition pour 16 espèces de poissons de la Lagune Mvassa, basse Guinée, République du Congo

2020 ◽  
Vol 44.1 ◽  
pp. 7540-7552
Author(s):  
Hélène Dembe Louvinguila Tenda ◽  
Armel Ibala Zamba ◽  
Joseph Goma-Tchimbakala ◽  
Lérège Batiabo Mikembi ◽  
Honest Freedom Poaty Ngot ◽  
...  
Keyword(s):  
Rainy Season ◽  
Condition Factor ◽  
Abundant Species ◽  
Common Species ◽  
Dry Season ◽  
Mugil Cephalus ◽  
Seasonal Effects ◽  
Length Relationship ◽  
Fish Samples ◽  
Sarotherodon Melanotheron

Objectifs : La présente étude a été initiée pour établir les relations poids-longueur et les facteurs de condition de Ethmalosa fimbriata, Sardinella maderensis, Coptodon guinensis, Oreochromis schwebischi, Neochelon falcipinnis, Mugil cephalus, Parachelon grandisquamis, Eucinostomus melanopterus, Hemichromis elongatus, Pomadasys jubelini, Eleotris daganensis, Bathygobius soporator, Trachinotus teraia, Lutjanus goreensis, Mugil banannensis, et Sarotherodon melanotheron, 16 espèces les plus abondantes de la lagune Mvassa en République du Congo. Méthodologie et résultats : Les échantillonnages des poissons ont été réalisés sur 9 stations à l’aide des filets maillants de 8, 10, 20 et 30 mm de côté de la maille. Les relations poidslongueur ont été réalisées en utilisant l’équation P = aLSb et leurs coefficients de condition en utilisant l’équation K = 100*(P ⁄ LSb ). Au total, 1566 spécimens, réparties en 5 ordres, 8 familles, 16 espèces dont 10 ont été capturées en saison sèche, 14 en saison des pluies et 8 espèces communes pour les deux saisons ont été utilisés dans le cadre de cette étude. Le coefficient de détermination r 2 était significatif pour les deux saisons et variait de 0,91 pour Neochelon falcipinnis et 0,99 pour Pomadasys jubelini avec une moyenne de 0,97 ± 0,02. En saison sèche, le coefficient d’allométrie b de la relation poids-longueur variait de 2,04 pour Mugil cephalus à 3,48 Sardinella maderensis avec une moyenne de 2,79 ± 0,03. Le facteur de condition variait en moyenne de 0,66 ± 0,06 pour Sardinella maderensis à 12,22± 0,28 pour Mugil cephalus. En saison des pluies, le coefficient d’allométrie b variait de 2,41 pour Eucinostomus melanopterus à 3,94 pour Sardinella maderensis, avec une moyenne de 3,01 ± 0,05. Le facteur de condition variait de 0,02± 0,002 pour Parachelon grandisquamis à 6,73 ± 0,41 pour Eucinostomus malanopterus. Pour les huit espèces communes, le coefficient d’allométrie b était plus élevé en saison de pluie qu’en saison sèche pour la plupart des espèces (63 %). Conclusion et application des résultats : Ces résultats rapportent des informations relatives à la biologie des poissons rencontrés dans la lagune Mvassa, mais aussi sur l’influence de la saison sur les relations poids-longueur et les coefficients de condition. Dembe Louvinguila et al., 2020 Journal of Animal & Plant Sciences (J.Anim.Plant Sci. ISSN 2071-7024) Vol.44 (1) : 7540-7552 https://doi.org/10.35759/JAnmPlSci.v44-1.1 7541 Seasonal effects on weight-length relationships and condition factors for 16 fish species from the Mvassa Lagoon, Lower Guinea, Republic of the Congo ABSTRACT Objectives: This study was initiated to establish weight-length relationships and condition factors of Ethmalosa fimbriata, Sardinella maderensis, Coptodon guinensis, Oreochromis schwebischi, Neochelon falcipinnis, Mugil cephalus, Parachelon grandisquamis, Eucinostomus melanopterus, Hemichromis elongatus, Pomadasys jubelini, Eleotris daganensis, Bathygobius soporator, Trachinotus teraia, Lutjanus goreensis, Mugil banannensis, et Sarotherodon melanotheron, 16 most abundant species of the Mvassa lagoon in the Republic of Congo. Methodology and results: Fish samples were taken at 9 stations utilizing 8, 10, 20 and 30 mm mesh gillnets. The weight-length relationships were performed using equation P = aLSb and their condition coefficients using equation K = 100*(P/LSb ). A total of 1566 specimens, divided into 5 orders, 8 families, 16 species of which 10 were caught in the dry season, 14 in the rainy season and 8 common species for both seasons were used in this study. The correlation coefficient r 2 was significant for both seasons and ranged from 0.91 for Neochelon falcipinnis and 0.99 for Pomadasys jubelini with an average of 0.97 ± 0.02. In the dry season, the allometry coefficient b of the weight-length relationship ranged from 2.04 for Mugil cephalus to 3.48 Sardinella maderensis with an average of 2.79 ± 0.03. The condition factor ranged on average from 0.66 ± 0.06 for Sardinella maderensis to 12.22 ± 0.28 for Mugil cephalus. In the rainy season, the allometry coefficient b ranged from 2.41 for Eucinostomus melanopterus to 3.940 for Sardinella maderensis, with an average of 3.014 ± 0.05. The condition factor ranged from 0.02 ± 0.002 for Parachelon grandisquamis to 6.73 ± 0.41 for Eucinostomus malanopterus. For the eight common species, the allometry coefficient b was higher in the rainy season than in the dry season for most species (63%). Conclusion and application of the results: These results report information on the biology of the fish encountered in the Mvassa lagoon, but also on the influence of the season on weight- length relationships and condition coefficients

scholarly journals Length-length Relationship, Weight-Length Relationship, Sex Ratio and factor of Condition of Sardinella maderensis (Lowe, 1838) in South-Eastern Coastal waters of Benin

2020 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Coastal Waters ◽  
Condition Factor ◽  
Stock Assessment ◽  
Central Area ◽  
Environmental Condition ◽  
Small Pelagic Fish ◽  
Relative Condition Factor ◽  
Length Relationship ◽  
Significant Difference ◽  
Shared Character

Face to decreasing of high-value commercial fishes’ stocks particularly of small pelagic fish in the central part of FAO fishery area 34, the present study has been carried out. From November 2016 to June 2018, monthly 1041 specimens of Sardinella maderensis were collected from southeastern coastal water of Benin randomly. Standard and Total Length, and weight as well as, the sex data were collected.t-test, z-test and ANOVA one tail test were performed to determine whether there was a significant difference between data. With a ratio of 1:1.5 statistically different from 1:1 (p<0.001), female dominate S. maderensis population in Benin. Negative allometry both for the female (2.92) the male (2.88) and combined sexes (2.90) highly different from the consensus, “b=3” (p<0.001) is remarked. The relative condition factor computed from the allometry shows an average environmental condition for S. maderensis growth. Regarding the shared character of S. maderensis stock in CECAF’s central area, these results are important for the next stock assessment..

Allometric growth and condition factor of West African shrimp, Macrobrachium vollenhovenii (Herklots, 1857), in the rivers of Côte d'Ivoire

2014 ◽  
Vol 65 (10) ◽  
pp. 849
Author(s):  
Koffi Mexmin Konan ◽  
Allassane Ouattara ◽  
Kouassi Sébastino Da Costa ◽  
Abouo Béatrice Adépo-Gourène ◽  
Germain Gourène
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Condition Factor ◽  
Biological Database ◽  
Allometric Growth ◽  
Cote D’Ivoire ◽  
K Value ◽  
Côte D'ivoire ◽  
Males And Females ◽  
First Time

The length–length and length–weight relationships and condition factor for Macrobrachium vollenhovenii are described using samples collected from the rivers of Côte d’Ivoire. The maximum carapace lengths (CLs) registered for males and females were 63.00 and 53.60 mm, respectively. All relationships between body length and CL and weight and CL were found to be highly significant, with r2 > 0.76 (P < 0.001). In the length–length relation, the allometry coefficient (b) ranged from 0.75 to 1.46 and varied according to the considered length and groups. The value of b of the length–weight relationship varied from 2.55 to 3.30. Although the three allometry types were observed, overall, M. vollenhovenii exhibited negative allometry. The condition factor (K) did not significantly vary among males and females. The K value decreased from the eastern to western Côte d’Ivoire. The present study presents, for the first time, results on the allometric growth and condition factors of M. vollenhovenii from the rivers of Côte d’Ivoire. Further, a biological database is established for use by fishery managers and in further research on the ecology, reproductive biology and aquaculture potentialities of this species.

scholarly journals Growth, length-weight relationship, and condition factor of NIFI (Oreochromis sp.) and Srikandi Tilapia (Oreochromis aureus x niloticus) at the grow-out stage in the high salinity brackishwater ponds

2021 ◽  
Vol 21 (2) ◽  
pp. 117-130
Author(s):  
Bambang Gunadi ◽  
Priadi Setyawan ◽  
Adam Robisalmi
Keyword(s):  
Brackish Water ◽  
High Salinity ◽  
Condition Factor ◽  
Morphological Changes ◽  
Allometric Growth ◽  
Oreochromis Aureus ◽  
Weight Relationship ◽  
Males And Females ◽  
Brackishwater Pond ◽  
Brackish Water Pond

Tilapia strain of NIFI (Oreochromis sp.) and Srikandi (Oreochromis aureus x niloticus) are superior strain of tilapia that able to grow well in brackish water ponds. However, an increasing water salinity might have an impact on a series adaptation process on fish that leads to various morphological changes. This study aimed to analyze the growth and length-weight relationship of both tilapia strain in brackishwater pond with salinity of 25-30 ppt. Research was conducted in brackishwater pond in Losari, Brebes Regency. Fish were reared in 5x5x1 m3 hapas installed in the pond for four months. At the end of experiment period, body length and weight measurement were carried out for 26 males and 34 females of NIFI strain and 31 males and 28 females of Srikandi strain. The result showed that the highest growth rate was shown by Srikandi strain and the highest length was shown by NIFI. Positive allometric growth was found in the Srikandi females, while Srikandi males as well as NIFI tilapia males and females showed a negative allometric growth. Length-weight relationship on males and females of NIFI strain followed the formula of W = 0.0583L2,632 and W = 0.0452L2,665, respectively. Whereas, on males and females of Srikandi strain followed the formula of W = 0.0358L2,8545 and W = 0.0287L3,1580, respectively. There was a strong correlation between length and weight of fish from both strains with the R2 value ranged between 0.80 – 0.87. Condition factor of males and females of NIFI were 1.853 and 2.009, while Srikandi tilapia males and females were 2.308 and 2.665, respectively. Red NIFI and Srikandi tilapia are able to adapt in a high salinity level of brackish water pond.

scholarly journals BEBERAPA ASPEK BIOLOGI DAN PRODUKSI HIU PAHITAN (Alopias superciliosus) DI PERAIRAN SELATAN JAWA TENGAH

2018 ◽  
Vol 6 (2) ◽  
pp. 137-146
Author(s):  
Lulu Anjayanti ◽  
Abdul Ghofar ◽  
Anhar Solichin
Keyword(s):  
Sex Ratio ◽  
Condition Factor ◽  
Secondary Data ◽  
Size Classes ◽  
Central Java ◽  
Length Relationship ◽  
Growth Properties ◽  
Thresher Shark ◽  
Males And Females ◽  
Average Size

ABSTRAK Hiu pahitan (Alopias superciliosus) merupakan salah satu spesies hiu yang terdapat di perairan selatan Jawa Tengah. Di Indonesia umumnya hewan ini sering tertangkap dengan alat tangkap rawai (longline). Penelitian ini bertujuan untuk mengetahui struktur ukuran, Lc50%, hubungan panjang berat, faktor kondisi, nisbah kelamin dan perkembangan produksi A. superciliosus di perairan selatan Jawa Tengah. Penelitian ini menggunakan metode deskriptif dan pengambilan sampel menggunakan metode simple sensus sampling yaitu pengambilan sample secara keseluruhan. Data yang digunakan adalah data panjang cagak, berat dan panjang klasper A. superciliosus. Dari hasil penelitian, diperoleh sampel A. superciliosus sebanyak 431 individu, terdiri dari 154 jantan dan 277 betina. Ukuran A. superciliosus yang didapatkan berkisar dari 92 – 211 cm. Meskipun hampir semua ukuran kelas diwakili pada kedua jenis kelamin (jantan dan betina), selang ukuran panjang 150 – 159 cm adalah kelas dengan jumlah tangkapan tertinggi, dan hasil tangkapan terendah pada ukuran kelas terkecil dan ukuran kelas terbesar. Ukuran rata-rata tertangkap (L50%) A. superciliosus jantan adalah 154 cm dan betina adalah 147 cm. Hubungan panjang berat A. superciliosus diperoleh persamaan W = 0,000004FL3,239. Hal tersebut menunjukkan bahwa sifat pertumbuhan dari A. superciliosus adalah allometrik positif yang berarti pertumbuhan berat lebih cepat dari pertumbuhan panjangnya. Nilai faktor kondisi A. superciliosus diperoleh  sebesar 1,066 yang berarti A. superciliosus memiliki badan yang kurang pipih. Nisbah kelamin antara jantan dan betina tidak seimbang yaitu 1 : 1,8. Perkembangan produksi A. superciliosus berdasarkan data sekunder selama enam tahun terakhir berfluktuatif. Puncak hasil tangkapan mengalami pergeseran, ada kecenderungan puncak hasil tangkapan terjadi pada bulan April – September. Kata kunci : Hiu pahitan; aspek biologi; produksi; Jawa Tengah                                                                                                  ABSTRACT Bigeye Thresher Shark (Alopias superciliosus) are one of the species of shark found in the southern sea of Central Java. In Indonesia many of these animals are often caught by longline fishing gear. This study aims to determine the size of the structure, Lc50%, weight-length relationship, condition factor, sex ratio and development of production A. superciliosus in southern sea of Central Java. This study used a descriptive method and sampling using simple methods census sampling is the taking of the sample as a whole. The data used is data forked length, weight and clasper length of A. superciliosus. From the research results, obtained samples of A. superciliosus as many as 431 people, consisting of 154 males and 277 females. The size of A. superciliosus obtained ranged from 92 – 211 cm. Although virtually all size classes represented in both sexes (males and females), in the range of sizes 150 – 159 cm is the class with the highest number of catches,  with very few specimens in the smallest and largest size classes. The average size caught (Lc50%) A. superciliosus male is 154 cm and female is 147 cm. A. superciliosus length relationship weight equation W = 0,000004FL3,239. It shows that the growth properties of A. superciliosus is a significant positive allometric weight growth faster than the growth in length. A. superciliosus condition factor value obtained for 1,066 which means A. superciliosus have a less flat body. Sex ratio between males and females are not balanced at 1 : 1.8. Developments A. superciliosus based secondary data for the last six years had been fluctuating. The highlight of the catch-shifted, there is a tendency to peak catches occurred in April – September. Keywords : Bigeye Thresher Shark; biological aspect; production; Central Java

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