Habibah, Lutfia Nurul (2019) Kajian Aspek Biologi Ikan Lemuru (Sardinella Lemuru Bleeker, 1853) Di Perairan Prigi, Kabupaten Trenggalek, Jawa Timur. Sarjana thesis, Universitas Brawijaya.
Abstract
Ikan Lemuru (Sardinella lemuru) memiliki banyak manfaat yang menyebabkan penangkapan terhadap ikan lemuru di Perairan Prigi semakin meningkat. Aktivitas penangkapan yang dilakukan secara terus-menerus diperlukan upaya pengelolaan agar tetap lestari. Penelitian ini bertujuan untuk mengetahui beberapa aspek biologi ikan lemuru di Perairan Prigi, seperti hubungan panjang berat, tingkat kematangan gonad, ukuran pertama kali tertangkap (Lc), ukuran pertama kali matang gonad (Lm) dan sex ratio. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa hubungan panjang dan berat ikan lemuru jantan dan betina memiliki pola pertumbuhan allometrik positif dengan persamaan W = 0,0012L3,698dan W = 0,0004L4,009. Tingkat kematangan gonad (TKG) ikan lemuru jantan dan betina didominasi oleh ikan yang sudah matang gonad yaitu pada fase TKG III dan IV. Nilai Lc ikan lemuru jantan dan betina adalah 16,86 cm dan 17,03 cm. Sedangkan nilai Lm ikan lemuru jantan dan betina adalah 16,13 cm dan 16,78 cm, hal ini menunjukkan bahwa nilai Lc > Lm. Sex ratio jantan dan betina adalah 1 : 1 (seimbang). Eksploitasi ikan lemuru di Perairan Prigi masih dalam keadaan baik, seimbang dan lestari.
English Abstract
Lemuru (Sardinella lemuru) has many benefits which cause the catching of lemuru in Prigi is increasing. Fishing activities that are carried out continuously are needed management efforts to stay sustainable. This study aims to determine some aspects of the lemuru biology in Prigi, such as the relationship of length of weight, level of gonad maturity, size of the first time caught (Lc), size of the first gonad mature (Lm) and sex ratio. The method used in this research is descriptive quantitative. The results showed that the relationship of length and weight of male and female lemuru fish had a positive allometric growth pattern with the equation W=0,0012L3,698dan W=0,0004L4,009. The gonadal maturity level (TKG) of male and female lemuru fish was dominated by gonadal ripe fish, namely in the TKG III and IV phases. The Lc value of male and female lemuru is 16.86 cm and 17.03 cm. While the Lm value of male and female lemuru is 16.13 cm and 16.78 cm, this indicates that the value of Lc > Lm. The male and female sex ratio is 1:1 (balanced). The lemuru catching rate in Prigi is still good, balanced and sustainable.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FPIK/2019/218/051903215 |
| Uncontrolled Keywords: | Aspek Biologi, Sardinella lemuru, Perairan Prigi / Biological aspects, Sardinella lemuru, Prigi |
| Subjects: | 500 Natural sciences and mathematics > 597 Cold-blooded vertebrates > 597.4 Miscellaneous superorders of Actinopterygii > 597.45 Clupeomorpha |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Pemanfaatan Sumberdaya Perikanan dan Kelautan |
| Depositing User: | Endang Susworini |
| Date Deposited: | 31 Jul 2019 03:37 |
| Last Modified: | 06 Apr 2020 07:30 |
| URI: | http://repository.ub.ac.id/id/eprint/169921 |
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