Suzana Refiani
Fakultas Perikanan dan Ilmu Kelautan, IPB

Published : 5 Documents
Articles

Found 5 Documents
Search

Morphological and Histological Structures of Gonad of Coconut Crab (Birgus latro) Refiani, Suzana; ,, Sulistiono
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol 16, No 1 (2009): Juni 2009
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1230.516 KB)

Abstract

The study was aimed to investigate the secondary morphological and histological structures of gonad of coconut crab (Birgus latro). Morphologically, male and female gonads were described based on size, surface condition, colour and ocupied stage in abdomen. Histologically, male gonad was described based on appearance of spermatocyte, spematid and spermatophore using PAS-Hematoksilin method, while female gonad was described on oocyte development, nucleus condition, and deposit of oocyte using Hematoksilin-Eosin methods. Morphologically, testes are smooths, white-brownish, and occupied about 9-40% abdoment, while ovarium surface are smooth-granule, whitish, grey-dark, red, and occupied about 25-80% abdoment. Histologically, the testes showed spermatocyte, spermatid, and spermatozoa in spermatophore, while the ovarium showed oocyte at premature-mature conditions.Key words: Morphological and histological structures, gonad, coconut crab (Birgus latro).
Gonad Maturity of Coconut Crab (Birgus latro) in Pasoso Island, Central Sulawesi Sulistiono, .; Refiani, Suzana; Tantu, Fadly Y.; Muslihuddin, .
Jurnal Akuakultur Indonesia Vol 8, No 2 (2009): Jurnal Akuakultur Indonesia
Publisher : Jurnal Akuakultur Indonesia

Show Abstract | Original Source | Check in Google Scholar | Full PDF (102.602 KB)

Abstract

Study on gonad maturity of coconut crab (Birgus latro) was carried out from June 2004 to January 2005.  Crabs were collected by some gears such as trap, net and by hand. Observation was done to know sex ratio, gonad maturity and eggs diameter, while analysis was employed to estimate condition factor, gonado somatic index and fecundity.  Observation result showed that condition factor, gonad maturity and gonado somatic index varied depending on sampling month. Gonado somatic index showed a high value around November/December.  A similar result was also showed by condition factor and gonado somatic index that was high around November /December. Fecundity varied from 58.717 to 197.400. Oocyte diameter varied from 0,015 to 0,035 mm,  had one mode that is clasified to be a total spawner. Keywords :  Gonad maturity, coconut crab (Birgus latro), total spawner.   ABSTRAK Penelitian tentang kematangan gonad kepiting kelapa (Birgus latro) dilakukan sejak Juni 2004 sampai Februari 2005.  Sampel kepiting ditangkap dengan menggunakan beberapa peralatan, yaitu perangkap, jaring dan secara langsung dengan tangan. Pengamatan dilakukan terhadap jenis kelamin, kematangan gonad dan diameter telur, sedangkan analisis dilakukan untuk menentukan faktor kondisi, indeks kematangan gonad, dan fekunditas.  Hasil pengamatan menunjukkan bahwa faktor kondisi, kematangan gonad dan indeks kematangan gonad bervariasi tergantung dari bulan pengambilan contoh. Pengamatan kematangan gonad menunjukkan bahwa nilai tertinggi terdapat pada November/Desember.  Keadaan yang sama juga ditunjukkan dengan nilai faktor kondisi dan indeks kematangan gonad yang cukup tinggi pada bulan November /Desember. Fekunditas berkisar antara 58.717-197.400 butir telur. Diameter telur berkisar antara 0,015-0,035 mm,  memiliki 1 puncak sehingga dapat diklasifikasikan sebagai total spawner. Kata kunci :  Kematangan gonad, kepiting kelapa (Birgus latro), total spawner.
Gonad Maturity of Coconut Crab (Birgus latro) in Pasoso Island, Central Sulawesi Sulistiono, .; Refiani, Suzana; Tantu, Fadly Y.; Muslihuddin, .
Jurnal Akuakultur Indonesia Vol 8, No 2 (2009): Jurnal Akuakultur Indonesia
Publisher : ISSA

Show Abstract | Original Source | Check in Google Scholar | Full PDF (102.602 KB)

Abstract

Study on gonad maturity of coconut crab (Birgus latro) was carried out from June 2004 to January 2005.  Crabs were collected by some gears such as trap, net and by hand. Observation was done to know sex ratio, gonad maturity and eggs diameter, while analysis was employed to estimate condition factor, gonado somatic index and fecundity.  Observation result showed that condition factor, gonad maturity and gonado somatic index varied depending on sampling month. Gonado somatic index showed a high value around November/December.  A similar result was also showed by condition factor and gonado somatic index that was high around November /December. Fecundity varied from 58.717 to 197.400. Oocyte diameter varied from 0,015 to 0,035 mm,  had one mode that is clasified to be a total spawner. Keywords :  Gonad maturity, coconut crab (Birgus latro), total spawner.   ABSTRAK Penelitian tentang kematangan gonad kepiting kelapa (Birgus latro) dilakukan sejak Juni 2004 sampai Februari 2005.  Sampel kepiting ditangkap dengan menggunakan beberapa peralatan, yaitu perangkap, jaring dan secara langsung dengan tangan. Pengamatan dilakukan terhadap jenis kelamin, kematangan gonad dan diameter telur, sedangkan analisis dilakukan untuk menentukan faktor kondisi, indeks kematangan gonad, dan fekunditas.  Hasil pengamatan menunjukkan bahwa faktor kondisi, kematangan gonad dan indeks kematangan gonad bervariasi tergantung dari bulan pengambilan contoh. Pengamatan kematangan gonad menunjukkan bahwa nilai tertinggi terdapat pada November/Desember.  Keadaan yang sama juga ditunjukkan dengan nilai faktor kondisi dan indeks kematangan gonad yang cukup tinggi pada bulan November /Desember. Fekunditas berkisar antara 58.717-197.400 butir telur. Diameter telur berkisar antara 0,015-0,035 mm,  memiliki 1 puncak sehingga dapat diklasifikasikan sebagai total spawner. Kata kunci :  Kematangan gonad, kepiting kelapa (Birgus latro), total spawner.
Morphological and Histological Structures of Gonad of Coconut Crab (Birgus latro) Refiani, Suzana; ,, Sulistiono
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol 16, No 1 (2009): Juni 2009
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1230.516 KB)

Abstract

The study was aimed to investigate the secondary morphological and histological structures of gonad of coconut crab (Birgus latro). Morphologically, male and female gonads were described based on size, surface condition, colour and ocupied stage in abdomen. Histologically, male gonad was described based on appearance of spermatocyte, spematid and spermatophore using PAS-Hematoksilin method, while female gonad was described on oocyte development, nucleus condition, and deposit of oocyte using Hematoksilin-Eosin methods. Morphologically, testes are smooths, white-brownish, and occupied about 9-40% abdoment, while ovarium surface are smooth-granule, whitish, grey-dark, red, and occupied about 25-80% abdoment. Histologically, the testes showed spermatocyte, spermatid, and spermatozoa in spermatophore, while the ovarium showed oocyte at premature-mature conditions.Key words: Morphological and histological structures, gonad, coconut crab (Birgus latro).
KEMATANGAN GONAD KEPITING KELAPA (Birgus latro) DI PULAU PASOSO, SULAWESI TENGAH ., Sulistiono; Refiani, Suzana; Y . Tantu, Fadly; ., Muslihuddin
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol 15, No 2 (2008): Desember 2008
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (560.513 KB)

Abstract

Penelitian tentang kematangan gonad kepiting kelapa (Birgus latro) dilakukan sejak Juni 2004 sampai Februari 2005. Contoh kepiting ditangkap dengan menggunakan beberapa peralatan, yaitu perangkap, jaring, dan secara langsung dengan tangan. Pengamatan dilakukan terhadap jenis kelamin, kematangan gonad, dan diameter telur, sedangkan analisis dilakukan untuk menentukan faktor kondisi, indeks kematangan gonad, dan fekunditas. Hasil pengamatan menunjukkan bahwa faktor kondisi, kematangan gonad, dan indeks kematangan gonad bervariasi tergantung dari bulan pengambilan contoh. Pengamatan kematangan gonad menunjukkan bahwa nilai tertinggi terdapat pada November/Desember. Keadaan yang sama juga ditunjukkan dengan nilai faktor kondisi dan indeks kematangan gonad yang cukup tinggi pada bulan November /Desember. Fekunditas berkisar antara 58 717 - 197 400 butir telur. Diameter telur berkisar antara 0.015-0.035 mm, memiliki 1 puncak sehingga dapat diklasifikasikan sebagai total spawner.Kata kunci: kematangan gonad, kepiting kelapa (Birgus latro), total spawner Study on gonad maturity of coconut crab (Birgus latro) was carried out from June 2004 to January 2005. Crabs were collected by traps, nets, and by bare hand. Observation was done to know sex ratio, gonad maturity, and eggs diameter, while analysis was employed to estimate condition factor, gonado somatic index, and fecundity. Observation result showed that condition factor, gonad maturity, and gonado somatic index varied depending on sampling month. Gonado somatic index showed a high value around November/December. A similar result was also showed by condition factor and gonado somatic index that was high around November /December. Fecundity varied from 58 717 to 197 400. Oocyte diameter varied from 0.015 to 0.035 mm, with one mode leat tobe classified as total spawner animal.Key words: gonad maturity, coconut crab (Birgus latro), total spawner.