Biphasic control of Argulus bengalensis Ramakrishna (1951) (Crustacea: Branchiura) with plant derivatives

Banerjee, Anirban; Saha, Samar Kumar

doi:10.1016/j.aquaculture.2013.07.044

Cited by 17 publications

(13 citation statements)

References 48 publications

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“…has been reported as a lethal pathogen in both semi-intensive and intensive aquaculture systems (Mishra 1991;Saurabh et al 2010). Banerjee and Saha (2013) indicated that A. bengalensis infected all carp species irrespective of their size but showed a higher preference for Cirrhinus mrigala. Singhal et al (1990) reported a reduction in growth up to 4 % and a fall in condition factor to k = 2.6 from 3.0 in C. carpio pond culture condition in Haryana, India, due to argulosis.…”

Section: Impact Of Argulus Infestation On the Hostmentioning

confidence: 99%

“…However, the threat of bioaccumulation in the host, caused by the frequent use of these drugs, reduces sensitivity of the Argulus to the organophosphate dichlorvos (Jones et al 1992) and has forced to find alternative control methods (Goven et al 1980;Klinger and Floyd 2002). Recently, phytotherapeutants such as azadirachtin (Kumar et al 2012a, b;Banerjee and Saha 2013), piperine (Kumar et al 2013), rotenone and nicotine (Banerjee and Saha 2013) have been documented as a biodegradable and cheap herbal extracts to combat Argulus infections. However, easy unavailability of pure extracts or synthetic substitutes, the intricate pharmacodynamics with water, their potential for toxicity at higher doses and the rapid disintegration of some bioactive molecules in the phytotherapeutants make their use difficult in large aquaculture systems (Kumar et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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A prospective of epidemiological intervention in investigation and management of argulosis in aquaculture

Kumar

Vidya

et al. 2016

Aquacult Int

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Argulus, an obligate macroectoparasite, infests a wide range of fishes causing severe economic loss to aquaculture industry. The application of chemotherapeutants is the most common approach to combat argulosis. But it is very expensive and has a range of negative impacts on the host and environment. An alternative to the extensive use of chemotherapeutics is to restrict Argulus infestation by adopting a range of biosecurity and quarantine measures. However, before adopting these measures it is essential to adequately understand the complex interaction among the host, parasite and environment, in order to identify key factors affecting parasite dynamics and to formulate a possible management strategy. Epidemiology provides key tools to advance our understanding of diseases and allows bringing convergence in controlling the disease. Compared to terrestrial diseases, relatively few epidemiological studies have been conducted to investigate aquatic animal diseases. For Argulus spp., the complex real-world dynamics of transmission, reproduction and the host specificity and the role of these parasites as a vector for various pathogens are very complex to develop an effective epidemiological framework. This review principally focuses on the application of epidemiological concepts, providing insights about the sampling frame, commenting upon the use of simple deterministic susceptible-infectedremoved models and examines the determinants of transmission and spread of argulosis. Further, this paper describes the risk factors associated with Argulus infestation and the importance of risk analysis in intervention against its epizootics. Overall, this review is intended to highlight the need for development of a more extensive epidemiological approach to combat argulosis in aquaculture.Saurav Kumar and T. Sathish Kumar have contributed equally to this work.

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Section: Impact Of Argulus Infestation On the Hostmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A prospective of epidemiological intervention in investigation and management of argulosis in aquaculture

Kumar

Vidya

et al. 2016

Aquacult Int

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“…Management of this disease thus is an important issue for the finfish aquaculture. Application of synthetic pesticides is a common practice for combating this disease (Armstrong et al 2000;Benz et al 1995;Hart et al 1997;Singhal et al 1986Singhal et al , 1990, but the results are not much impressive and very often witness recurrences of parasitaemia in the post-therapeutic period (Banerjee and Saha 2013). Moreover, the residuals of the synthetic pesticides have been consistently burdening the eco-toxicity (Costello et al 2001) day by day.…”

Section: Introductionmentioning

confidence: 99%

“…Indiscriminate use of the insecticides very often leads to rapid development of resistance (Hakalahti-Sirén et al 2008), so control of pests and parasites is currently hindered by the small number of effective products available in the market (Jonsson and Piper 2007). In this context, it is to be mentioned that different plant derivatives can be better alternatives and safer (De Albuquerque et al 2007;Dos Santos et al 2011;Banerjee and Saha 2013) for management of diseases of domesticated animals. Azadirachta indica (A. Juss) commonly known as neem tree is a fast-growing hardy and evergreen tropical and sub-tropical plant belonging to the family Meliaceae.…”

Section: Introductionmentioning

confidence: 99%

“…in vitro and in vivo systems. In situ antiparasitic efficacy of crude Azadirachta leaf dust against the adult parasitic morphs of Argulus bengalensis was estimated to be 10.68 % at an experimental concentration of 225 ppm which was sub-lethal to the host fish (Banerjee and Saha 2013). Azadirachtin has been shown to have an inhibitory effect on vitellogenesis during oogenesis of insects (Jonsson and Piper 2007).…”

Section: Introductionmentioning

confidence: 99%

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Effect of aqueous extract of Azadirachta indica A. Juss (neem) leaf on oocyte maturation, oviposition, reproductive potentials and embryonic development of a freshwater fish ectoparasite Argulus bengalensis Ramakrishna, 1951 (Crustacea: Branchiura)

2014

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In present study, a microcosm experiment is carried out to investigate the efficacy of 120 and 250-ppm crude aqueous extract of Azadirachta leaf on oocyte maturation, oviposition, embryonic development and hatching of the eggs of a fish ectoparasite Argulus bengalensis. Relative abundance of different maturing oocyte stages in the ovary of the parasite from different age groups was enumerated, and marked variations were obtained. Significant depletion in the abundance of pre-vitollogenic, vitellogenic and post-vitellogenic oocytes was recorded, which indicates impairment in maturation. Chromatin condensation of the oocytes of treated parasite indicates apoptosis of oogenic cells. Strong oviposition deterrence was evident by the elevated oviposition deterrence index of 0.18 and 0.52 at respective toxin levels. The treated parasites invested less number of eggs per oviposition, and hatching percentage of the eggs reduced markedly. In vitro treatment of eggs within 70 min of incubation exhibited coagulation of yolk material and subsequent reduction in hatching percentage. However, treatment applied after this critical period, hatching was not significantly altered. In vitro treatment of eggs at 80 min of incubation resulted in normal development. It signifies that azadirachtin affects the early developmental events but not the later. Presumably, azadirachtin either affects early gene expression of the embryo or antagonizes any of the substances of the zygote required for sustaining early developmental process. The result of the present experiment suggests that azadirachtin could be a promising agent to control argulosis through inhibition of the reproductive maturity of the parasite as well as through interference of its embryonic development.

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Male reproductive system of the fish ectoparasiteArgulus bengalensis(Crustacea: Branchiura)

Banerjee

Manna

Saha

2015

Journal of Morphology

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The male reproductive system of the fish ectoparasite Argulus bengalensis was reconstructed with serial histological sections through longitudinal and transverse planes and the description was re-evaluated after the discovery of spermatophore. The study revealed that the testis of A. bengalensis consists of two lobes, each comprised the two enclaves. The outer enclaves from both lobes are connected proximally with an isthmus. The inner enclave is covered with two layers of chromatophores which are presumably involved in androgenic hormone production. At the proximal end of the inner enclaves a pair of vasa efferentia originates and ascends into thorax where it leads into vesicula seminalis. Like Dolops ranarum, a pair of spermatophoric glands is found in the thorax just behind the second maxilla. Glandular cells of the spermatophoric glands are columnar with a large nucleus at their basal side. A pair of spermatophoric canals carries the secretion of the glands into the vesicula seminalis through vasa efferentia. Spermatophores are delivered to the female through a median vas deference originating from the vesicula seminalis. In addition to the spermatophoric glands, a pair of accessory glands is located in the coxa of the fourth thoracic legs. At the region dorsal to the isthmus both the spermatophoric canal and accessory gland ducts unite with the vas efferens of the respective side. The secretion of the accessory gland presumably contributes to semen composition of the parasite.

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Biphasic control of Argulus bengalensis Ramakrishna (1951) (Crustacea: Branchiura) with plant derivatives

Cited by 17 publications

References 48 publications

A prospective of epidemiological intervention in investigation and management of argulosis in aquaculture

A prospective of epidemiological intervention in investigation and management of argulosis in aquaculture

Effect of aqueous extract of Azadirachta indica A. Juss (neem) leaf on oocyte maturation, oviposition, reproductive potentials and embryonic development of a freshwater fish ectoparasite Argulus bengalensis Ramakrishna, 1951 (Crustacea: Branchiura)

Male reproductive system of the fish ectoparasiteArgulus bengalensis(Crustacea: Branchiura)

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