SEBARAN UKURAN HASIL TANGKAPAN DAN ASPEK REPRODUKSI IKAN SIDAT (Anguilla bicolor bicolor McClelland, 1844) DI PERAIRAN SEGARA ANAKAN, CILACAP

Herianti, Isnani; Nugroho, Duto

doi:10.15578/bawal.3.3.2010.165-173

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…The more giant eels (in length and weight) do have not the GSI and HSI values higher than smaller eels. This result differed from eels from Segara Anakan, where the HSI values trend increased by the length [23]. The more enormous eels from Poso still have developing gonads during their migration to freshwater.…”

Section: Discussioncontrasting

confidence: 63%

Development of the silver eel (Anguilla marmorata) gonad during downstream migration in the Lake Poso system, Central Sulawesi

et al. 2021

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The Lake Poso system is located in Central Sulawesi and is connected to the Tomini Bay by the Poso River. It is known that five out of nine Indonesian eel species were found at the Poso River. Anguilla marmorata is the most caught species. However, uncontrolled catching during downstream migration and the construction of a hydropower plant threaten the silver eel in the Lake Poso system. Research on silver eel (A. marmorata) in Lake Poso was conducted to determine and compare the condition of gonad development as part of the reproductive process. This represents essential information in eel fisheries management in Lake Poso. The eels were collected through bamboo traps (waya masapi). The present study calculates the GSI and HSI values, and histological analyses characterize the gonad. The GSI of eel ranges from 1.95 to 5.69%, and the HSI value ranges from 0.83 to 1.16%. Histological observation showed that eels from Tentena (Lake Poso outlet) and from the estuary of Poso River have ovaries in the early vitellogenic stage (III) and the vitellogenic stage (IV).

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Section: Discussioncontrasting

confidence: 63%

Development of the silver eel (Anguilla marmorata) gonad during downstream migration in the Lake Poso system, Central Sulawesi

et al. 2021

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“…Locations 1 and 2 are located on the Cikaso River, which is the location for primary data collection: the main channel of the Cikaso River and coastal marsh of Ciroyom. The condition factor at location 3 (Cimandiri River) was obtained from research results [4], Kn at location 4 (Segara Anakan Waters) from research [21], and Kn at location 5 in southern Sri Lanka from [22]. The average Kn of eels in the mainstream of the Cikaso River was higher than in other areas.…”

Section: Discussionmentioning

confidence: 99%

Population structure of tropical eel (Anguilla bicolor bicolor) in Cikaso River, West Java

Putri

Syamsudin

2021

E3S Web Conf.

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A. bicolor bicolor is a tropical eel subspecies that dominate catches in the coastal areas of West Java, and its conservation status is near threatened. Cikaso River, West Java, becomes eel migration path, while unfortunately, information concerning the stock of eel in this river is still inadequate. The objective of this study was to determine the population structure (size distribution, length-weight relationship, and condition factor) of A. bicolor bicolor in the Cikaso River. The research was carried out in the main streams of the Cikaso River and the coastal marsh of Ciroyom from January to December 2020. Eel samples were collected using lift-net, fishhook, and traps. The number of eels caught is counted, then the total length and weight are measured. We collected nine elvers and 89 yellow eels, but no silver eel was caught during the study. The elver's total length (TL) ranged from 10.2 to 20 cm, and the TL of yellow eel ranged from 20.1 to 42.2 cm. The catch of eel is dominated by the size of 25-30 cm. The growth pattern of eel in the Cikaso River is positive allometric, with the condition factor of eel ranging from 0.450 to 1.917 (1.160±0.3096).

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“…Ucapan terimakasih disampaikan kepada Balai Layanan Usaha Produksi Perikanan Budidaya (BLUPPB) Karawang, serta semua pihak yang telah membantu mulai dari tahap persiapan, pelaksanaan penelitian sampai dengan diselesaikannya jurnal ini. (Usui, 1974) Oksigen Terlarut (Dissolved oxygen) (mg L -1 ) 4,3 -5,6 > 3.0 (Herianti, 2005) Amonia (Ammonia) (mg L -1 ) 0,013 -0,032 < 0.1 (Yamagata & Niwa, 1982) pH 6,65 -7,92 6.0-9.0 (Ritonga, 2014)…”

Section: Ucapan Terima Kasihunclassified

APLIKASI PADAT TEBAR BERBEDA PADA PEMBESARAN IKAN SIDAT (Anguilla bicolor) DENGAN SISTEM AIR MENGALIR

Nawir,

Aonullah,

Yunarty

2023

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Penelitian ini bertujuan untuk mengetahui padat tebar optimal terhadap pertumbuhan ikan sidat dengan sistem air mengalir pada fase pembesaran. Ikan uji yang digunakan yaitu ikan sidat (Anguilla bicolor) dengan bobot ±59 g dan keseragaman ukuran ±80% yang diperoleh dari hasil tangkapan alam di daerah Cilacap. Metode uji yang digunakan adalah eksperimental skala lapang dengan padat tebar yang digunakan yaitu B1 (3,41 g L-1 atau 34 ekor m-2) dan B2 (3,62 g L-1 atau 36 ekor m-2). Pemeliharaan dilakukan selama enam bulan pada bak fiber persegi panjang berukuran 5,8 m × 0,85 m × 1,12 m. Respon yang diamati meliputi laju pertumbuhan spesifik (LPS), tingkat kelangsungan hidup (TKH) dan rasio konversi pakan (RKP). Hasil penelitian menunjukkan bahwa perlakuan B2 (3,62 g L-1) menghasilkan nilai LPS dan RKP yang lebih baik dibandingkan perlakuan B1 (3,41 g L-1), dimana nilai LPS dan RKP yang diperoleh yaitu sebesar 0,42% hari-1 dan 4,64. Perbedaan padat tebar tidak memberikan pengaruh terhadap TKH ikan sidat, dimana nilai TKH untuk semua perlakuan mencapai 100%.This study aims to determine the optimal stocking densities of eel (Anguilla bicolor) with a running water system in the grower stage. The test fish used were eels with a weight of ±59 g and size homogeneity of ±80% obtained from natural catches in the Cilacap area. The test method used was field-scale experimental with stocking densities used as B1 (3,41 g L-1 or 34 fish m-2) and B2 (3,62 g L-1 or 36 fish m-2). The rearing was conducted for six months in rectangular fiber tanks measuring 5,8 m × 0,85 m × 1,12 m. Responses observed included specific growth rate, survival rate, and feed conversion ratio. The results showed that treatment B2 (3,62 g L-1) with higher stocking density produced higher SGR and FCR than treatment B1 (3,41 g L-1) at 0,42% day-1; 4,64 and 0,37% day-1; 5,84, respectively. Differences in stocking density in this study are also known to have no effect on eel survival, in which SR values during the rearing of all treatments reached 100%.

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SEBARAN UKURAN HASIL TANGKAPAN DAN ASPEK REPRODUKSI IKAN SIDAT (Anguilla bicolor bicolor McClelland, 1844) DI PERAIRAN SEGARA ANAKAN, CILACAP

Cited by 3 publications

References 10 publications

Development of the silver eel (Anguilla marmorata) gonad during downstream migration in the Lake Poso system, Central Sulawesi

Development of the silver eel (Anguilla marmorata) gonad during downstream migration in the Lake Poso system, Central Sulawesi

Population structure of tropical eel (Anguilla bicolor bicolor) in Cikaso River, West Java

APLIKASI PADAT TEBAR BERBEDA PADA PEMBESARAN IKAN SIDAT (Anguilla bicolor) DENGAN SISTEM AIR MENGALIR

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