Studi Tingkat Kematangan Gonad Lorjuk (Solen Sp.) Di Pantai Pamekasan Madura

Ningsih, Suci Triana Wahyu (2016) Studi Tingkat Kematangan Gonad Lorjuk (Solen Sp.) Di Pantai Pamekasan Madura. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian biologi reproduksi lorjuk merupakan salah satu upaya untuk melestarikan sumberdaya hayati potensial di Pantai Pamekasan Madura, Indonesia. Penelitian ini bertujuan untuk mengetahui tingkat kematangan gonad (TKG) serta Gonadal Condition Index (GCI) pada populasi lorjuk (Solen sp.) di pantai Talang Siring, Pamekasan, Madura. Pengambilan sampel dilakukan pada bulan Januari-April 2015 dengan interval waktu 2 minggu sekali. Tingkat kematangan gonad ditentukan dengan pengamatan mikroskopis preparat apus gonad dengan pewarnaan eosin. Pengukuran GCI diperoleh dari hasil pembagian berat gonad segar dengan cangkang kering. Hasil penelitian ini menunjukkan bahwa TKG populasi lorjuk di Pantai Talang Siring pada bulan Januari sebagian besar adalah TKG II (60-70%), mencapai tahap matang pada bulan Februari TKG III (27%) dan awal bulan Maret TKG III ( 50%), dan mulai memijah pada akhir bulan Maret TKG IV (3%) hingga bulan April TKG IV (23%).Nilai TKG lorjuk (Solen sp.) memiliki korelasi positif yang kuat (r=0.829) dengan ukuran oosit. Nilai GCI tertinggi (0,25) menandakan tahap pematangan pada populasi lorjuk di awal Februari 2015. Nilai GCI terendah (0,15) menandakan tahap pemijahan dan istirahat pada populasi lorjuk di awal April 2015. ================================================================================================================== The reasearch of razor clam reproductive biology is the one of effort to conserve the marine natural resources in Pamekasan, Madura, Indonesia. The aim of study is to determine the stage of gametogenic scale and gonadal condition index (GCI) of razor clam in Talang Siring coast, Pamekasan. Sampling was conducted in January-April 2015 with a time interval of 2 weeks. Gametogenic scael was determined by observation of gonad smears that stained with eosin. GCI was calculated as gonad fresh weight/valve dry weight. The result indicated that GS of the razor clam population at Talang siring coast in January were in GS stage II (60-70%), then reached in a mature stage GS stage III in February (27%), in the early of March was in GS stage III (50%) and start to spawning at the end of March GS stage IV (3%) until April GS stage IV (23%). GS stage of razor clam have a strong postive correlation with size of oocyte. The peak value of GCI that indicatesthe gonad of maturation in population of razor clam was fund in February 2015. The lowest of GCI value (0,15) that indicates the stage of spawning and resting was observed in the early of April 2015

Item Type: Thesis (Undergraduate)
Additional Information: RSBi 594.2 Nin s
Uncontrolled Keywords: Gonadal Condition Index (GCI), Solen sp., Tingkat Kematangan Gonad, Pantai Talang Siring Pamekasan Madura
Subjects: Q Science > QH Biology > QH301 Biology
Divisions: Faculty of Mathematics and Science > Biology > (S1) Undergraduate Theses
Depositing User: Users 13 not found.
Date Deposited: 20 Jun 2017 02:14
Last Modified: 27 Dec 2018 03:19
URI: http://repository.its.ac.id/id/eprint/41752

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