TINGKAT KEMATANGAN GONAD DAN INDEKS KEMATANGAN GONAD KERANG POKEA (Batissa violacea var. celebensis, von Martens 1897) DI SUNGAI LAEYA KONAWE SELATAN
DOI:
10.29303/jbt.v19i1.1097Published:
2019-05-27Downloads
Abstract
Abstract : Pokea clam is one of the resources utilized, but its existence continues to experience a decrease in quality and quantity. This study aims to analyze the Gonad Maturity Level (TKG), Gonad Maturity Index (IKG) of pokea clam. Research begins in September 2016 - February 2017 on the Laeya River. The sampling method used is the swept area with the "Tangge" catch tool. The total sample of pokea clam during the study was 600 individuals consisting of 336 (males) and 264 (females). TKG and IKG data were obtained, then analyzed using quantitative descriptive and Mann Whitney Test. The results of the analysis showed that many stages of IV and V TKG were found in September, both in male and female clam. While in other months, the value of TKG was dominated by phases of TKG I and II. IKG values in September show male and female pokea clam in parallel at the highest IKG level, ie 13,99 for male clam and 14,89 for female clam. As for October, November and December, the value of the male and female IKG pokea decrease, with the peak decline in the value of male-female IKG occurring in December. The Mann Whitney Test results showed that the IKG score in September was significantly different from the other study months. Based on the values of TKG and IKG, it is suspected that the pokea clam had a spawning period in September.
ÃÂ
Keywords: Keywords: Pokea Clam, TKG, IKG, Laeya River
ÃÂ
Abstrak : Kerang pokeamerupakan salah satu sumber daya yang dimanfaatkan, namun keberadaannya terus mengalami penurunan kualitas dan kuantitas. Penelitian inibertujuan untukmenganalisis Tingkat Kematangan Gonad (TKG), Indeks Kematangan Gonad (IKG) dari kerang pokea.Penelitian dimulai pada bulan September 2016 ââ¬âFebruari 2017 di Sungai Laeya.Metode pengambilan sampel yang digunakan ialah luas sapuan (swept area)dengan alat tangkap ââ¬ÅTanggeââ¬Â.Total sampel kerang pokea selama penelitian sebesar 600 individu yang terdiri dari 336 (jantan) dan 264 (betina). Data TKG dan IKG yang telah diperoleh, kemudian di analisis menggunakan deksriptif kuantitatif dan Uji Mann Whitney.Hasil analisis menunjukkan bahwa fase TKG IV dan V banyak ditemukan di bulan September, baik pada kerang jantan maupun betina. Sedangkan pada bulan lainnya, nilai TKG didominasi oleh fase TKG I dan II. Nilai IKG di bulan September menunjukkan kerang pokea jantan dan betina secara paralel berada pada level IKG tertinggi, yaitu 13,99 untuk kerang jantan dan 14,89 untuk kerang betina. Adapun pada bulan Oktober, November, dan Desember, nilai IKG pokea jantan dan betina mengalami penurunan, dengan puncak penurunan nilai IKG jantan-betina terjadi pada bulanàDesember. Hasil Uji Mann Whitney menunjukkan nilai IKG di bulan September berbeda secara signifikan dengan bulan penelitian lainnya. Berdasarkan nilai TKG dan IKG, diduga kerang pokea mengalami masa pemijahan di bulan September.
ÃÂ
Kata Kunci : Kerang Pokea, TKG, IKG, Sungai Laeya
Keywords:
Pokea Clam TKG IKG Laeya RiverReferences
Bahtiar (2005). Kajian Populasi Pokea (Batissa violacea var. celebensis, von Martens, 1897), 1897 di Sungai Pohara Kendari Sulawesi Tenggara. Tesis. IPB.
Bahtiar (2012). Studi Bioekologi dan Dinamika Populasi Pokea Pokea (Batissa violacea var. celebensis, von Martens 1897) yang Tereksploitasi Sebagai Dasar Pengelolaan di Sungai Pohara Sulawesi Tenggara. Disertasi. IPB. Bogor.
Bahtiar (2017). Biologi Reproduksi Kerang Pokea Batissa violacea var. celebensis, von Martens 1897 di Muara Lasolo, Sulawesi Tenggara. Jurnal Ilmu dan Teknologi Kelautan Tropis. Departemen Ilmu dan Teknologi Kelautan UHO.
Camacho A.P., Delgado, Reiriz F. & Labarta (2003). Energy Balance, Gonad Development and Biochemical Composition in The Clam Ruditapes decussatus. Marine Ecology Progress Series. Inter Research.
Crncevic M, Peharda M, Ezgeta-Balic D & Pecarevic M. (2013). Reproductive cycle of Glycymeris nummaria (Mollusca: Bivalvia) from Mali Ston Bay, Adriatic Sea, Croatia. Scientia Marina. 77(2):293-300.
Delgado, Larruscain & Gairin I.J. (2016). Broodstock Conditioning and Gonadal Development of The Smooth Clam Callista chione (Linnaeus,1758) (Mollusca: Bivalvia) on The Catalan coast (NE Spain). Original Scientific Paper . Aadray Acta Adriat.
Efriyeldi, Bengen, D. G., Affandi, R. & Prartono, T. (2012). Karakteristik Biologi Populasi Kerang Sepetang (Pharella acutidens) di Ekosistem Mangrove Dumai, Riau. Jurnal Perikanan Terubuk. 40(1):36ââ¬â44.
Freites, L., Lerimar M., Dwight A., Juse M. F. Babarro., Pedro E. & Saucedo (2010). Influence of Environmental Factors on The Reproductive Cycle of the Eared Ark Anadara Notabilis (Roè Ding, 1798) In Northeastern Venezuela. Journal of Shellfish Research, (29) 1: 69ââ¬â75
Hamli H., Idris M.H., Rajaee A.H. & Kamal Mustafa (2015). Reproductive Cycle of Hard Clam, Meretrix lyrata Sowerby, 1851 (Bivalvia: Veneridae) from Sarawak, Malaysia. Tropical Life Sciences Research. University Sans Malaysia.
Islami, Muhammad Masrur. (2014). Bioekologi Kerang Kerek Gafrarium tumidum röding, 1798 (Bivalvia: Veneridae) di Perairan Teluk Ambon, Maluku (tesis). Bogor. Institut Pertanian Bogor.
Jagadis I & Rajagopal S. (2007). Reproductive Biology of Venus Clam Gafrariumumidum (Roding, 1798) From Southeast Coast of India. Aquaculture Research. 38:1117-1122. doi:10.1111/j.1365-2109.2007.01743.x.
Jahangir, S., G. Siddiqui. & Z. Ayub. (2014). Temforal Variation in The Reproductive Pattern of Blood Cockle Anadara antiquata From Pakistan (Northern Arabian Sea). Turkish Journal of Zoology. 38: 263-272
Komala, R. (2012). Analisis Ekobiologi sebagai Dasar Pengelolaan Sumberdaya Kerang Darah (Anadara granosa) di Teluk Lada Perairan Selat Sunda (Disertasi). Program Pascasarjana Institut Pertanian Bogor. Bogor
Maani, Gratischa VHL. (2016). Aspek Biologi Reproduksi Kerang Bulu (Anadara antiquata) di Perairan Bungkutoko Kota Kendari Provinsi Sulawesi Tenggara. Fakultas Perikanan dan Ilmu Kelautan. Universitas Halu Oleo.
Nurohman. (2012). Laju Eksploitasi dan Keragaman Reproduksi Kerang Darah (Anadara granosa) di Perairan Bondet dan Mundu, Cirebon, Jawa Barat. Skripsi. IPB. Bogor.
Pattikawa, J.A. & Ferdinandus, E. (2009). Growth of Mangrove Cockle (Anadara antiquata) Cultured in Cage. Marine Research Indonesia, 34, 91 ââ¬â 96.
Putri, R.E. (2005). Analisis Populasi dan Habitat : Sebaran Ukuran dan Kematangan Gonad Kerang Lokan Batissa violacea Lamarck (1818) di Muara Sungai Batang Anai Padang Sumatera Barat. Tesis. Institut Pertanian Bogor.
Sukri, A. S. (2013). Analisis Sedimentasi pada Bendung Laeya Kabupaten Konawe Selatan. ILTEK, 8 (15).
License
Jurnal Biologi Tropis is licensed under a Creative Commons Attribution 4.0 International License.
The copyright of the received article shall be assigned to the author as the owner of the paper. The intended copyright includes the right to publish the article in various forms (including reprints). The journal maintains the publishing rights to the published articles.
Authors are permitted to disseminate published articles by sharing the link/DOI of the article at the journal. Authors are allowed to use their articles for any legal purposes deemed necessary without written permission from the journal with an acknowledgment of initial publication to this journal.
