Abstract
The aim of the study was to reveal spatial-temporal distribution of the blue swimming crab(Portunus pelagicus Linnaeus 1758) in terms of size and gonad maturity stage of both male andfemale. Sampling of crab was conducted with a gill net from April 2013 until March 2014 inLasongko Bay. Of the whole population the mean size of male was smaller than that of females.Spatially smaller crabs (juveniles and young ones) inhabited mostly inner side of the bay, whilemedium size crabs occurred in the middle part of the bay. Big crabs were mostly found in theouter side of the bay. In terms of time, big sise of male and female crabs were collected inperiod of October to November and September to March, respectively. Small size of male andfemale occurred in February to September and in April, respectively. Related to gonad maturity,the sizes of both sexes with mature stages were variable. Ovigerous female (OF) was presencewidely in the bay, but the size of ovigerous females living in the shallow part of the bay wassmaller than those living in the deeper part. Keywords: blue swimming crab, size distribution, carapace width, spatial-temporal, gonadmaturity
Highlights
The aim of the study was to reveal spatial-temporal distribution of the blue swimming crab (Portunus pelagicus Linnaeus 1758) in terms of size and gonad maturity stage of both male and female
of crab was conducted with a gill net from April 2013
while medium size crabs occurred in the middle part of the bay
Summary
Indonesia merupakan negara dengan tingkat keanekaragaman biota laut yang tinggi, salah satunya adalah hewan krustasea. Penelitian distribusi ukuran lebar karapas rajungan secara spasial-temporal telah banyak dilakukan (diantaranya Batoy et al.,1988; Sumpton et al.,1994; Potter dan de Lestang, 2000; de Lestang et al, 2003; Razek et al, 2006; Ernawati, 2013; Kurnia et al, 2014; Johnston et al, 2011, 2014; Zairion et al, 2014, 2015; Nugraheni et al, 2015). Penelitian ini bertujuan untuk mengetahui distribusi ukuran lebar karapas secara spasial-temporal dan berdasarkan tingkat kematangan gonad rajungan jantan dan betina, serta distribusi kelas ukuran lebar karapas rajungan betina ovigerous berdasarkan warna telur yang dierami di Teluk Lasongko. Hasil penelitian ini diharapkan dapat digunakan sebagai dasar dalam pengelolaan rajungan dan sebagai rujukan untuk penelitian selanjutnya
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
