Electronic Theses and Dissertation

ABSTRAK
Telah dilakukan penelitian tentang, “Gambaran Struktur Gonad Bulu Babi Echinotrix calamaris di Pelabuhan Ulee Lheue dan Pantai Ahmad Rhangmanyang”, yang dilakukan mulai bulan Mei hingga Desember 2018. Penelitian ini bertujuan untuk mengetahui tingkat kematangan gonad berdasarkan ukuran dan struktur gonad bulu babi baik pada bulu babi jantan maupun betina. Metode yang digunakan dalam penelitian ini adalah metode purposive sampling untuk mengambil sampel, sedangkan untuk sediaan histologi menggunakan metode parafin. Terdapat variasi kematangan gonad antar individu bulu babi Echinotrix calamaris yang ditemukan pada lokasi dan bulan penelitian yang berbeda. Gonad bulu babi E. calamaris asal perairan Pelabuhan Ulee Lheue memiliki rata-rata IKG lebih besar dan TKG yang lebih matang dibandingkan dengan gonad bulu babi asal perairan Pantai Ahmad Rhangmanyang. Rata- rata indeks kematangan gonad jantan tertinggi berlangsung pada bulan Agustus di Pelabuhan Ulee Lheue sedangkan indeks kematangan gonad jantan terendah terjadi pada bulan Mei di perairan Pantai Ahmad Rhangmanyang. Rata- rata indeks kematangan gonad betina tertinggi berlangsung pada bulan Juni di Pelabuhan Ulee Lheue sedangkan indeks kematangan gonad betina terendah terjadi pada bulan Mei di perairan Pantai Ahmad Rhangmanyang. Ditemukan individu jantan dengan TKG I-V dengan persentase gonad matang tertinggi (90%) pada bulan Juni di Pelabuhan Ulee Lheue. Ditemukan individu betina dengan TKG I-IV dengan persentase gonad matang tertinggi (57%) pada bulan Oktober di Pelabuhan Ulee Lheue.

Kata kunci: Bulu babi E. calamaris, tingkat kematangan gonad, indeks kematangan gonad, Pelabuhan Ulee Lheue dan Pantai Ahmad Rhangmanyang.





ABSTRACT
This study is about “an overview structure of gonads sea urchins Echinotrix calamaris in Ulee Lheue Port and coastal water Ahmad Rhangmanyang”. The research was conducted from May to October 2018. The purpose of this study was to determined the level of gonad maturity which influenced by gonad maturity index based on the description of sea urchins structures on both male and female sea urchins. The method used in this study was purpossive sampling method. The method is for histology preparation used the paraffin method. There are variations of the gonads maturity between individual sea urchins Echinotrix calamaris found on the location and different research. Gonads sea urchins Echinotrix calamaris in Ulee Lheue Port has a greater average index of maturity level and a more mature gonads compared to the original sea urchins gonad at coastal water Ahmad Rhangmanyang. The highest male gonads average of maturity index take place in August at Ulee Lheue Port while the lowest male gonads of maturity index occurred in May at coastal waters of Ahmad Rhangmanyang. The highest female gonads average of maturity index take place in June at Ulee Lheue Port while the lowest female gonads of maturity index occurred in May at coastal waters of Ahmad Rhangmanyang. Based on the research, it was found the male individuals with the highest percentage of ripe gonads (90%) with the level of maturity gonad I-V in June at Ulee Lheue Port. It was found the female individuals with the highest percentage of ripe gonads (57%) with the level of maturity gonads I-IV in October at Ulee Lheue Port.

Keywords: Sea urchins Echinotrix calamaris, gonad maturity level, gonad maturity index, Ulee Lheue Port and coastal waters of Ahmad Rhangmanyang.

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