Effectiveness of freshwater treatment against Lepeophtheirus simplex (Copepoda: Caligidae) and Neobenedenia sp. (Monogenea: Capsalidae), skin parasites of bullseye puffer fish, Sphoeroides annulatus reared in tanks

Fájer-Ávila, Emma Josefina; Martínez-Rodríguez, Irma; Parra, María Isabel Abdo-de la; Álvarez‐Lajonchère, Luis; Betancourt‐Lozano, Miguel

doi:10.1016/j.aquaculture.2008.07.027

Cited by 19 publications

(8 citation statements)

References 11 publications

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“…This infection occurs all year round, but it is particularly higher during the warmest months (August to October) reaching a prevalence of about 90% (Morales-Serna et al 2011). Furthermore, L. simplex has been associated with skin pathology and mortality of S. annulatus reared in experimental tanks (Fajer-Ávila et al 2008). Sphoeroides annulatus is an economically important fish; it is both a highly appreciated food in the region and exported in large quantities.…”

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confidence: 99%

Developmental stages and fecundity of Lepeophtheirus simplex (Copepoda: Caligidae) parasitic on bullseye puffer fish (Sphoeroides annulatus)

Morales-Serna¹,

Rivas-Salas²,

Gómez³

et al. 2015

Folia Parasitologica

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Lepeophtheirus simplex Ho, Gómez et Fajer-Avila, 2001 is a parasite of Sphoeroides annulatus (Jenyns), an economically important fish species, with potential for aquaculture, in northwestern Mexico. The goal of this study was to describe the developmental stages under experimental conditions and seasonal fecundity of this parasite on wild fish. There are two naupliar, one copepodid, two chalimus and two pre-adult stages preceding the adult of L. simplex. The results support previous findings, which point out that the life cycle of the caligid copepods includes only six post-naupliar stages. The generation time from egg extrusion to adult for L. simplex was approximately 10 days at 22 °C. The body length of the ovigerous females ranged between 2.2 and 4.1 mm, and its fecundity between 12 and 36 eggs per string. Fecundity was negatively correlated with the egg size and positively correlated with the egg string length. Our data did not reveal significant differences in fecundity among sampling months, but ovigerous females were significantly larger in March (when water temperature was 22 °C) than in June and July (when water temperature was 30 °C). To some extent, our fecundity results contrast with those found in species of sea lice from higher latitudes. Undoubtedly, biological information on different species of sea lice from different environmental conditions will enhance our understanding of their infection strategies and will be valuable, given the increasing interest in marine fish farming in Mexico.

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confidence: 99%

Developmental stages and fecundity of Lepeophtheirus simplex (Copepoda: Caligidae) parasitic on bullseye puffer fish (Sphoeroides annulatus)

Morales-Serna¹,

Rivas-Salas²,

Gómez³

et al. 2015

Folia Parasitologica

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“…; Thoney & Hargis ; Fajer‐Ávila et al . ). This study confirmed the efficacy of these treatments in reducing Neobenedenia egg viability and oncomiracidia longevity, while previous studies confirm their use to eradicate adult stages (Kaneko et al .…”

Section: Discussionmentioning

confidence: 97%

“…; Fajer‐Ávila et al . ). The necessary long‐term immersion in hyposaline water to eradicate both eggs and adults is feasible for euryhaline species such as L. calcarifer , but is likely to be osmotically stressful to stenohaline marine species.…”

Section: Discussionmentioning

confidence: 97%

“…; Thoney & Hargis ; Fajer‐Ávila et al . ). While these treatments kill attached Neobenedenia juveniles and adults, eggs are generally resistant and can exist outside the treatment area (Mueller, Watanabe & Head ; Ellis & Watanabe ).…”

Section: Introductionmentioning

confidence: 97%

“…Management of Neobenedenia infections primarily relies on reactive treatments as opposed to proactive preventative management strategies. The established methods of treatment involve recurrent acute bathing of infected stock primarily in either formalin or freshwater solutions (Kaneko et al 1988; Thoney & Hargis 1991;Fajer-Avila et al 2008). While these treatments kill attached Neobenedenia juveniles and adults, eggs are generally resistant and can exist outside the treatment area (Mueller, Watanabe & Head 1992;Ellis & Watanabe 1993).…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of garlic (Allium sativum) extract applied as a therapeutic immersion treatment for Neobenedenia sp. management in aquaculture

Militz

Southgate

Carton

et al. 2013

Journal of Fish Diseases

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Garlic, Allium sativum L., extract administered as a therapeutic bath was shown to have antiparasitic properties towards Neobenedenia sp. (MacCallum) (Platyhelminthes: Monogenea) infecting farmed barramundi, Lates calcarifer (Bloch). The effect of garlic extract (active component allicin) immersion on Neobenedenia sp. egg development, hatching success, oncomiracidia (larvae) longevity, infection success and juvenile Neobenedenia survival was examined and compared with freshwater and formalin immersion. Garlic extract was found to significantly impede hatching success (5% ± 5%) and oncomiracidia longevity (<2 h) at allicin concentrations of 15.2 μL L(-1) , while eggs in the seawater control had >95% hatching success and mean oncomiracidia longevity of 37 ± 3 h. At much lower allicin concentrations (0.76 and 1.52 μL L(-1)), garlic extract also significantly reduced Neobenedenia infection success of L. calcarifer to 25% ± 4% and 11% ± 4%, respectively, compared with 55% ± 7% in the seawater control. Juvenile Neobenedenia attached to host fish proved to be highly resistant to allicin with 96% surviving 1-h immersion in 10 mL L(-1) (15.2 μL L(-1) allicin) of garlic extract. Allicin-containing garlic extracts show potential for development as a therapy to manage monogenean infections in intensive aquaculture with the greatest impact at the egg and larval stages.

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Metazoan Diseases

Hadfield

2021

Clinical Guide to Fish Medicine

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Effectiveness of freshwater treatment against Lepeophtheirus simplex (Copepoda: Caligidae) and Neobenedenia sp. (Monogenea: Capsalidae), skin parasites of bullseye puffer fish, Sphoeroides annulatus reared in tanks

Cited by 19 publications

References 11 publications

Developmental stages and fecundity of Lepeophtheirus simplex (Copepoda: Caligidae) parasitic on bullseye puffer fish (Sphoeroides annulatus)

Developmental stages and fecundity of Lepeophtheirus simplex (Copepoda: Caligidae) parasitic on bullseye puffer fish (Sphoeroides annulatus)

Efficacy of garlic (Allium sativum) extract applied as a therapeutic immersion treatment for Neobenedenia sp. management in aquaculture

Metazoan Diseases

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