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The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines

หน่วยงาน Southeast Asian Fisheries Development Center, Philippines

รายละเอียด

ชื่อเรื่อง : The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines
นักวิจัย : Erazo-Pagador, G. , Cruz-Lacierda, E. R.
คำค้น : Epinephelus coioides , Pseudorhabdosynochus , China , Hong Kong , Indonesia , Malaysia , Philippines , Ectoparasites , Fish culture , Fish larvae , Gill disease , Hosts , Life cycle , Longevity , Marine fish , Parasites
หน่วยงาน : Southeast Asian Fisheries Development Center, Philippines
ผู้ร่วมงาน : -
ปีพิมพ์ : 2553
อ้างอิง : 0108-0288 , http://hdl.handle.net/10862/2132
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : European Association of Fish Pathologists Bulletin , http://eafp.squarespace.com/bulletin-archive/2010-volume-30/issue-2/
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The morphology of Pseudorhabdosynochus lantauensis is described. It is the most numerous parasite recovered from the gills of cultured orange-spotted grouper Epinephelus coioides in the Philippines and is smaller compared with similar species reported in Hong Kong, Malaysia and Indonesia. This species is characterized by having an overlapping dorsal bar and short copulatory organ. The life cycle of the gill monogenean is also described. One mature parasite lays at least 10-22 eggs/day. Eggs are oval (0.021-0.120 mm) with a spiral filament attached to one end. Eggs hatch into free-swimming larvae (oncomiracidia) within 2-6 d at 30°C and 30 ppt. The rate of hatching of various eggs is highly variable, that is, some eggs hatch in 2 d while others take 6 d. The oncomiracidium can attach to the grouper host within 8 h. Upon attachment, the oncomiracidium metamorphoses to an adult parasite in 4-7 d. The parasite becomes fully mature and delivers eggs in 7 d. Without a host, the life span of oncomiracidium is only 4-8 h. The life cycle is complete in 13-20 days (eggs to oncomiracidium 2-6 d; oncomiracidium to adult parasite 4-7 d; adult to fully mature and egg delivery parasite 7 d). This is the first report on the morphology and life cycle of P. lantauensis from the Philippines.

บรรณานุกรม :
Erazo-Pagador, G. , Cruz-Lacierda, E. R. . (2553). The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines.
    : Southeast Asian Fisheries Development Center, Philippines.
Erazo-Pagador, G. , Cruz-Lacierda, E. R. . 2553. "The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines".
    : Southeast Asian Fisheries Development Center, Philippines.
Erazo-Pagador, G. , Cruz-Lacierda, E. R. . "The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines."
    : Southeast Asian Fisheries Development Center, Philippines, 2553. Print.
Erazo-Pagador, G. , Cruz-Lacierda, E. R. . The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines. : Southeast Asian Fisheries Development Center, Philippines; 2553.