scholarly journals Validation of otolith daily increments in the tropical eel Anguilla marmorata

2001 ◽  
Vol 220 ◽  
pp. 291-294 ◽  
Author(s):  
HY Sugeha ◽  
A Shinoda ◽  
M Marui ◽  
T Arai ◽  
K Tsukamoto
Keyword(s):  
Anguilla Marmorata ◽  
Daily Increments ◽  
Tropical Eel

Heavy Metals in a Tropical Eel Anguilla marmorata from The Central Part of Vietnam

2009 ◽  
Vol 204 (1-4) ◽  
pp. 69-78 ◽  
Author(s):  
Quang Dung Le ◽  
Kotaro Shirai ◽  
Duc Cu Nguyen ◽  
Nobuyuki Miyazaki ◽  
Takaomi Arai
Keyword(s):  
Heavy Metals ◽  
Anguilla Marmorata ◽  
Tropical Eel

scholarly journals Species composition of glass eels (Anguilla spp.) recruiting to the Palu River, Central Sulawesi

2018 ◽  
Author(s):  
Novalina Serdiati ◽  
Samliok Ndobe ◽  
Abigail Moore ◽  
Deddy Wahyudi
Keyword(s):  
Species Composition ◽  
Dna Analysis ◽  
Temporal Patterns ◽  
Clove Oil ◽  
Analysis Method ◽  
Substantial Variation ◽  
Anguilla Marmorata ◽  
Glass Eels ◽  
Central Sulawesi ◽  
Tropical Eel

Demand for tropical eel seed has been increased and many tropical eel populations are under pressure. To conserve eel biodiversity and manage eel populations sustainably, it is necessary to identify eel species and their recruitment patterns at regional and watershed scales. The research objective was to determine the species composition and temporal recruit-ment patterns of glass eels recruiting to Palu River in Central Sulawesi. Glass eels sampling were conducted in January-April 2009, May-November 2010 and April-December 2011. Identification under anaesthetic (15-17.5 ppm clove oil solution) was based mainly on the number of ano-dorsal vertebrae (ADV). Species composition was dominated by two commercially species, Anguilla marmorata and A. bicolor pacifica with substantial variation and no clear temporal patterns. Specimens of other species that important from conservation and biodiversity aspects were present at each month but cannot be accurately identified using the ADV method. DNA analysis method is required to identify these specimens.

Growth history and inshore migration of the tropical eel, Anguilla marmorata , in the Pacific

2002 ◽  
Vol 140 (2) ◽  
pp. 309-316 ◽  
Author(s):  
Arai T. ◽  
Marui M. ◽  
Miller M. ◽  
Tsukamoto K.
Keyword(s):  
Anguilla Marmorata ◽  
The Pacific ◽  
Growth History ◽  
Inshore Migration ◽  
Tropical Eel

Validation of otolith daily increments in the tropical eel Anguilla celebesensis

2000 ◽  
Vol 78 (6) ◽  
pp. 1078-1084 ◽  
Author(s):  
Takaomi Arai ◽  
Daniel Limbong ◽  
Katsumi Tsukamoto
Keyword(s):  
Daily Increments ◽  
Tropical Eel

Validation of otolith daily increments in the tropical eel Anguilla celebesensis

2000 ◽  
Vol 78 (6) ◽  
pp. 1078-1084 ◽  
Author(s):  
Takaomi Arai ◽  
Daniel Limbong ◽  
Katsumi Tsukamoto
Keyword(s):  
Age Determination ◽  
Structural Features ◽  
Reference Mark ◽  
Increment Width ◽  
Daily Increments ◽  
Otolith Increments ◽  
Glass Eels ◽  
Daily Deposition ◽  
Tropical Eel ◽  
Alizarin Complexone

To validate daily increments in otoliths of the tropical freshwater eel Anguilla celebesensis, a time-reference mark was incorporated in the otoliths of glass eels by immersing the eels in alizarin complexone (ALC) solution. They were subsequently reared in aquaria for 10 or 20 days, and the increments outside a fluorescent red ALC mark were counted. The numbers from the 10- and 20-d experiments were 9.4 ± 0.9 (mean ± SD) and 19.4 ± 1.4, respectively, suggesting daily deposition of otolith increments. Precise examination of otolith microstructure from the core to the edge showed gradual changes in increment width with no discontinuous structural features, suggesting that increments were deposited continuously from hatching to time of sacrifice. It was thus concluded that otolith increments in this species can be used for daily age determination.

Inshore migration of a tropical eel, Anguilla marmorata, from Taiwanese and Japanese coasts

2002 ◽  
Vol 68 (1) ◽  
pp. 152-157 ◽  
Author(s):  
TAKAOMI ARAI ◽  
MIHO MARUI ◽  
TSUGUO OTAKE ◽  
KATSUMI TSUKAMOTO
Keyword(s):  
Anguilla Marmorata ◽  
Inshore Migration ◽  
Tropical Eel

Identifikasi, Tingkat Insidensi, Indeks Dominasi dan Tingkat Kesukaan Parasit pada Sidat (Anguilla marmorata)

2011 ◽  
Vol 16 (1) ◽  
Author(s):  
Reiny A. Tumbol ◽  
Sammy N. Longdong ◽  
Tauvan A. Kanoli
Keyword(s):  
Anguilla Marmorata

Penelitian ini dilakukan dengan bertujuan mengetahui jenis-jenis parasit, tingkat insidensi, indeks dominasi dan tingkat kesukaan parasit pada sidat (Anguilla marmorata). Pemeriksaan sampel Sidat dimulai tanggal 25 Mei−16 Juni 2009, di Laboratorium Kesehatan Ikan Balai Budidaya Air Tawar Tatelu. Sampel diambil secara acak dari kolam-kolam pembesaran sebanyak 50 ekor, ukuran panjang 30–45 cm. Pemeriksaan parasit pada Sidat terbagi atas pemeriksaan ektoparasit yaitu mata, mulut, kulit/sisik, insang dan sirip. Pemeriksaan endoparasit meliputi pemeriksaan lambung, usus, hati dan daging. Hasil identifikasi parasit yang menginfeksi Sidat adalah Trichodina sp, Lerneae sp, Myxobolus sp, Gyrodactylus sp, Oxyurida sp, Capillaria, Acanthocephalus sp dan Vorticella sp. Tingkat insidensi dari tiap spesies parasit adalah sebagai berikut; Trichodina sp 92%, Gyrodactylus sp 74%, Lerneae sp 26%, Capillaria sp 24%, Myxobolus sp 22%, Oxyurida sp 6%, Acanthocephalus sp 2% dan Vorticella 2%. Analisis indeks dominasi menunjukan bahwa ada satu jenis parasit yang mendominasi infeksi parasit-parasit yang ada pada organ-organ sampel yang diperiksa dan parasit tersebut adalah Trichodina Sp. Setiap jenis parasit memiliki tingkat kesukaan yang berbeda dalam menempati organ-organ tubuh Sidat.

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