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All Journal AKULTURASI (JURNAL ILMIAH AGROBISNIS PERIKANAN) JURNAL ILMIAH PLATAX JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI
Gaspar D. Manu, Gaspar D.
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education Environmental Science

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The Abundance Of Sea Cucumber Species In The Waters Of The Wet Laboratory Of East Likupang, North Minahasa Horman, Christian Andre; Manu, Gaspar D.; Sangari, Joudy R. R.
Jurnal Ilmiah Platax Vol. 12 No. 1 (2024): ISSUE JANUARY-JUNE 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i1.53189

Abstract

Sea cucumbers, or Holothuroidea, are a class within the Echinodermata phylum. All organisms within this class possess characteristic spiny or knobbed skin composed of calcite particles. Several species of sea cucumber are internationally traded fishing commodities. The hunting of sea cucumbers is not only limited to the high-value species but also extends to lower-value species that initially garnered little attention. The sampling method used in this study began with a daytime location survey, followed by sample collection at night during the lowest tide, using a flashlight for illumination. All species of sea cucumbers found in the surveyed areas were collected. Following the collection, sorting was conducted where only two individuals of each morphological type, color, and other similar traits were kept, while the rest were returned to the waters. The sorted samples were then photographed for identification purposes, and to analyze the density of the discovered sea cucumber species, the number of individuals per suspected species was noted. The images of the collected samples were then compared with a guide for species identification. The World Register of Marine Species (WORMS) 2023 guide was used for this purpose. Subsequently, the number of individual species found was analyzed to determine the density of individuals and the abundance of sea cucumber species. The results of the identification process revealed 7 species with a total of 53 individuals. Keywords: Teripang, Holothuroidea, Likupang Abstrak Teripang atau Holothuroidea merupakan salah satu dari kelas Echinodermata. Semuah golongan organisme ini memiliki ciri kulit yang berduri atau yang berbintil atau tersusun dari sat-sat kapur. Beberapa jenis teripang merupakan komoditi perikanan yang diperdaganngkan secara Internasional. Perburuan teripang tidak saja pada jenis-jenis yang berharga mahal, tetapi juga pada jenis-jenis yang berharga murah yang pada awalnya tidak memiliki perhatian. Metode pengambilan sampel diawali dengan survei lokasi pada siang hari dan pengambilan sampel pada malam hari saat surut terendah dengan menggunakan senter sebagai alat penerang. Spesies yang diambil adalah semua jenis teripang yang ditemukan di perairan tesebut. Setelah teripang terkumpul dilanjutkan dengan penyortiran dimana hanya di ambil dua individu setiap bentuk morfologi, warna dan ciri lainnya yang sama. Sedangkan sisanya dikembalikan ke perairan. Sampel yang telah disortir, lalu difoto untuk keperluan iderntifikasi, kemudian untuk menganalisis kepadatan jenis teripang yang ditemukan dicatat jumlah individu setiap jenis yang điduga merupakan spesies/jenis yang sama. Sampel yang telah diambil foto/gambarnya dicocokkan dengan gambar panduan untuk identifikasi jenis. Panduan untuk mengidentifikasi digunakan WORMS (2023) Selanjutnya jumlah jenis individu yang ditemukan dianalisi untuk mendapatkan kepadatan individu dan kelimpahan spesies teripang. Hasil identifikasi ditemukan 7 spesies dengan jumlah 53 individu. Katakunci: Teripang, Holothuroidea, Likupang.
Fish Community Structure Of The Bahu River Estuary Manado City: Sampe, Ayumi Angraini; Manu, Gaspar D.; Kambey, Alex D.; Pratasik, Silvester Benny; Rondonuwu, Arie B.; Rangan, Jety K.
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.55275

Abstract

Community structure is an ecological term to indicate what organisms are present in a given environment, in what numbers, and how they are interconnected, through ecological indices that reflect dominance, evenness, and richness traits. The estuary is the most downstream part of the river and is connected to the sea. The Bahu River estuary is a habitat for a variety of aquatic life, especially fish, where water quality conditions greatly affect the abundance, diversity, and dominance. The methods used in this study were general field survey methods and fishing methods using the "swept area" method (Sparre & Venema, 1998). Data collection was carried out based on the time of collection using beach seine gear. This research was conducted with several stages, namely fishing in the field which will become data, data analysis and discussion. The results of this study indicate the composition of fish species in the Bahu River Estuary there are 11 families, 11 genus, and 14 species with a total of 86 individuals. The results of data analysis of the highest relative abundance in the Bahu River Estuary were in June, namely the Ambassis urotaenia species with a value of 45.90%. The results showed the community structure in the Bahu River Estuary in June and July (H' = 1.53 - 1.64, J' = 0.64 - 0.79, D = 0.31 - 0.26). Keywords: Diversity; Evenness; Dominance; River Estuary.
Co-Authors Agung B. Windarto, Agung B. Alex D. Kambey Ari B. Rondonuwu Darus S. Paransa Djuwita R.R. Aling Durand, Swenekhe S. Horman, Christian Andre Janny D. Kusen Joshian N.W. Schaduw Jumeini, Jumeini Khristin I. F. Kondoy, Khristin I. F. Lalita, Jans D. Lalita, Jans D.J Manengkey, Hermanto W.K. Mantiri, Desy M. H Manu, Lusia Mokolensang, Jeffrie Fredrik Moningkey, Rudy D. Nego E. Bataragoa, Nego E. Olvie V. Kotambunan Pelle, Wilmy E. Rangan, Jety K. Rene Charles Kepel, Rene Charles Rignolda Djamaluddin Rondonuwu, Arie B. Royke M. Rampengan Sampe, Ayumi Angraini Sangari, Joudy R. R. Sasauw, Harpan Silvester B Pratasik Sitanggang, Gorga Renaldi Steelma V. Rantung Surabi, Astevi Tarempas, Meike Tualangi, Jehezkiel Timotius Tumbel, Stivensian M. Windarto, Firmansyah Candra