Identification of marine leech and assessment of its prevalence and intensity on cultured hybrid groupers (Epinephelus sp.)
Penulis/Author
Prof. Dr. Ir. Murwantoko, M.Si. (1); Prof. Dr. Ir. Alim Isnansetyo, M.Sc. (3)
Tanggal/Date
2018
Kata Kunci/Keyword
Abstrak/Abstract
Grouper is an
important fish species due to its high price both in domestic and international markets. Several hybrid groupers have been produced and
can be accepted in market. A major production constraint in grouper culture is mortality due to diseases. Leech is an ectoparasite for
groupers which may cause significant loss. The aims of this study were to identify and to assess the prevalence and intensity of leech on
hybrid grouper cultured in sea cages at Buleleng waters. Morphological identification was conducted using fresh and stained specimens
while molecular identification was conducted using nucleotides sequence of mitochondrial cytochrome oxidase subunit I (COI). The
presence of leech was observed by unaided observation of 14 populations of hybrid grouper. Morphological identification showed that
the leech belonged to Zeylanicobdella arugamensis. This result was also supported by analysis of COI sequence that showed 100%
homology with Z. arugamensis (accession number KY 441721.1) and 90% homology with Aestabdella abditovesiculata (accession
number DQ414300.1). Hybrid groupers at sea cages were infected by leeches with prevalence and intensity, respectively, of 100% and
21.2 leeches fish-1. The prevalence and intensity were varied depending on the farm and population. Cantik grouper was more
susceptible to leech infection than cantang grouper. The bigger fish tended to have higher leech prevalence and intensity.
Rumpun Ilmu
Budidaya Perikanan
Bahasa Asli/Original Language
English
Level
Internasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
Murwantoko 2018 Identification of marine leech.pdf
[PAK] Full Dokumen
2
Similarity_ Identification of marine leech and assessment of its prevalence and intensity on cultured hybrid groupers (Epinephelus sp_).pdf
[PAK] Cek Similarity
3
bukti korespodensi Identification of marine leech and assessment of its prevalence and intensity on cultured hybrid groupers.pdf
