Prevalence and Intensity of Ectoparasites on Clarias gariepinus From Aquaculture Pond in Aceh Besar District, Indonesia

Abstract

Information related to the prevalence and intensity of para-sites in an aquatic environment is crucial as preventive and responsive efforts to manage aquatic resources, especially for fish farming pur-poses. Up to now, information related to the prevalence and intensity of ectoparasites on catfish from aquaculture ponds in Aceh Besar Dis-trict is rare. This study aims to investigate the prevalence, intensity, and dominance of ectoparasites on catfish from aquaculture ponds in Aceh Besar district. The total of 200 catfish from four research stations at Sibreh, Kareung, Lambaro, and Limpok was observed in this study. The ectoparasites observation was focused on the skin, fins, and gill of the catfish. The observation parameter consists of prevalence, in-tensity, domination, length-weight relationship, and condition factor. Identification result showed that there were four types of ectoparasites infect the catfish in the aquaculture ponds in Aceh Besar District i.e Trichodina sp., Gyrodactylus sp., Dactylogyrus sp. and Ichthyopthyri-us multifiliis. Station 3 (Lambaro) had the highest prevalence and in-tensity, which were 64% and 5.87 ectoparasites/fish, respectively. In-fected catfish tended to have a lower weight growth than healthy catfish.

Profile of ectoparasites and biometric condition of snakehead (Channa striata Bloch 1793) collected from different habitats

“…Furthermore, snakehead gills are the most vulnerable organs to ectoparasite infection compared to fins and skin. Similarly, it was also reported in catfish (Clarias gariepinus) and hairtail fish (Trichiurus lepturus) (Fautama et al 2019;Rahmat et al, 2020). This might occurs due to several factors, including 1) Gill is one organ with great contact with the environment.…”

“…were also reported to infect various freshwater fish, brackish water fish to seawater fish. Several of them were catfish (Clarias gariepinus) (Fautama et al, 2019), panga (Pangasius hypophthalmus) (Islami et al, 2017), goldfish (Carassius auratus) (Anshary, 2008), nile tilapia (Oreochromis niloticus) (Rahmi, 2012), milkfish (Chanos chanos) (Riko et al, 2012) and tiger grouper (Epinephelus fuscoguttatus) (Siswoyo and Hendrianto, 2011). Hardi (2015) asserts that several factors affecting the abundance and diversity of parasites in the waters include poor water quality, carrier vectors, and unhealthy cultivation media management.…”

“…The observation of ectoparasite was carried out in the skin, fins, and gill of snakehead based on Fautama et al (2019) protocol. Briefly, the fish was sacrificed by pinning with a needle in the neurocranium part of the fish.…”

Alteration in gills, skin, and fins of snakehead fish (Channa striata) due to ectoparasite infection: a macropathological and histopathological approach

“…Dactylogyrus sp. was known as the parasites that attaches to the surface of the gill lamella by using an opistaptor, a suction device that circulates with blood circulation [17]. Several researchers inform that gills infected with the parasite, including Dactylogyrus sp., are characterized by hyperplasia and swelling [18].…”

Osteocranium Anatomy of African Catfish (Clarias gariepinus Burchell 1822) from Cultured Pond in Aceh, Indonesia

“…African catfish (Clarias gariepinus, Burchell 1822) is one of the important cultured fish species extensively consumed by Indonesian people (1). However, to date, studies related to African catfish in Indonesia are still limited to fish feed formulations (2,3), aquaculture techniques (4), genetic improvement (5), and processed products (6).…”