<abstract xmlns="http://www.w3.org/1999/xhtml">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 <italic>Cherax gherardiae</italic> from Maybrat, West Papua Indonesia. The sex ratio of <italic>C. gherardiae</italic> 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&lt;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.</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.

Morphometric characteristics of crayfish, <italic>Cherax gherardiae</italic>, from Maybrat, West Papua, Indonesia

Study Program of Environmental Science and Technology, Faculty of Sciences and Technology

Study Program of Biology Education, Faculty of Teacher Education

Department of Biology, Faculty of Sciences and Technology

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Morphometric characteristics of crayfish, , from Maybrat, West Papua, Indonesia

The objectives of this study were to determine the length-weight relationships (LWRs), chelae length (ChL)-width (ChW) relationships, carapace length...

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

Pubblicato online: 01 feb 2019

Pagine: 223 - 230

Ricevuto: 05 feb 2018

Accettato: 14 nov 2018

DOI: https://doi.org/10.2478/aopf-2018-0025

Parole chiave
crayfish, morphometry, Papua

© 2018 Archives of Polish Fisheries, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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

Pubblicato online: 01 feb 2019

Pagine: 223 - 230

Ricevuto: 05 feb 2018

Accettato: 14 nov 2018

DOI: https://doi.org/10.2478/aopf-2018-0025

Parole chiavecrayfish, morphometry, Papua

© 2018 Archives of Polish Fisheries, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
crayfish, morphometry, Papua