Negative effect of ectoparasite burdens on the condition factor from farmed tilapia Oreochromis niloticus in the Yucatan, Mexico

Paredes-Trujillo, Amelia; Velázquez‐Abunader, Iván; Papiol, Vanesa; Río-Rodríguez, Rodolfo E. del; Vidal‐Martínez, Víctor M.

doi:10.1016/j.vetpar.2021.109393

Cited by 17 publications

(9 citation statements)

References 61 publications

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“…and Cichlidogyrus sp. has negative effects on hosts; high parasite burdens correlate with low host condition factor with an estimated 12%–15% decrease in profit margin 331 . Igeh and Avenant‐Oldewage 322 outlined that natural infections of Cichlidogyrus are not very harmful.…”

Section: Parasitic Infections Of Tilapiamentioning

confidence: 99%

“…has negative effects on hosts; high parasite burdens correlate with low host condition factor with an estimated 12%-15% decrease in profit margin. 331 Igeh and Avenant-Oldewage 322 outlined that natural infections of Cichlidogyrus are not very harmful. Sandoval-Gío et al 324 noted little direct evidence for dramatic effects on cultured tilapia.…”

Section: Pathogenicitymentioning

confidence: 99%

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A global review of problematic and pathogenic parasites of farmed tilapia

Shinn

Avenant‐Oldewage

Bondad‐Reantaso

et al. 2023

Reviews in Aquaculture

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Over the past 80 years, tilapia have been translocated globally for aquaculture; active production is recorded in >124 countries. Of 7 million tonnes of tilapia produced in aquaculture, 79% is from 79 countries outside the natural range of tilapia. Capture fisheries account for a further 723,627 tonnes of tilapia, and >47% of this is landed from established invasive populations outside Africa. Tilapias host a rich fauna of parasites, many of which have been translocated with their hosts. This review summarises >2500 host–parasite records from 73+ countries and >820 recorded tilapia translocations (provided in the supplementary materials). This work focuses on the notable pathogens that threaten the health of cultured populations of tilapia, providing a description of their pathology and includes species that also have substantial impacts on wild tilapia populations, where relevant. For each major parasite taxonomic group, we highlight which parasites have been translocated or have been acquired from the new environments into which tilapia have been introduced, together with remarks on standard treatment approaches and research on them and their management and control. Regarding the theme ‘Tilapia health: quo vadis?’, Africa has enormous potential for aquaculture growth, but substantial knowledge gaps about tilapia parasites in many African states remain, which creates associated production and biosecurity risks. For each parasitic group, therefore, the risks of parasite translocation to new regions as tilapia aquaculture industries expand are highlighted.

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Section: Parasitic Infections Of Tilapiamentioning

confidence: 99%

Section: Pathogenicitymentioning

confidence: 99%

A global review of problematic and pathogenic parasites of farmed tilapia

Shinn

Avenant‐Oldewage

Bondad‐Reantaso

et al. 2023

Reviews in Aquaculture

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“…activity with wild and farmed fish), the multiple factors that influence infection make it difficult to calculate the economic damage effectively attributable to parasites, and a precise estimation of the costs would require information on morbidity and mortality, which is not always available or known (Shinn et al ., 2015; Tavares-Dias and Martins, 2017). However, some examples are available, such as losses up to 12–15% in profit margin per tonne of fish caused by ectoparasites (especially monogeneans) in farms, based on the price of Nile tilapia in Mexico (Paredes-Trujillo et al ., 2021).…”

Section: Economic Impact Of Metazoan Parasites Of Fish From Twmentioning

confidence: 99%

Ecology and effects of metazoan parasites of fish in transitional waters

Giari

Castaldelli²,

Timi³

2022

Parasitology

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Given the abundance, heterogeneity and ubiquity of parasitic organisms, understanding how they influence biodiversity, evolution, health and ecosystem functionality is crucial, especially currently when anthropogenic pressures are altering host–parasite balances. This review describes the features, roles and impacts of metazoan parasites of fish occurring in transitional waters (TW). These aquatic ecosystems are highly productive and widespread around the globe and represent most favourable theatres for parasitism given the availability of hosts (invertebrates, fishes and birds) and an increased probability of parasite transmission, especially of those having complex life cycles. Fascinating examples of how parasitism can influence different hierarchical levels of biological systems, from host individuals and populations to entire aquatic communities, through effects on food webs come from this kind of ecosystem. Edible fish of commercial value found in TW can harbour some parasite species, significantly reducing host health, marketability and food safety, with possible economic and public health consequences. Many TW are historically exploited by humans as sources of relevant ecosystem services, including fisheries and aquaculture, and they are highly vulnerable ecosystems. Alteration of TW can be revealed through the study of parasite communities, contributing, as bioindicators, for assessing environmental changes, health and restoration. Fish parasites can provide much information about TW, but this potential appears to be not fully exploited. More studies are necessary to quantify the ecological, economic and medical impacts fish parasites can have on these important ecosystems.

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“…Nile tilapia, Oreochromis niloticus, is the most cultivated fish species in the world (Paredes-Trujillo et al 2021). It has a fast growth rate, high resistance to diseases and stress, and the capacity to efficiently convert a wide variety of natural and artificial foods into high quality proteins (Bosu et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Behaviour of personality-screened juvenile Oreochromis niloticus in different challenges: Bold fish present more exploratory capacity and learning to face imposed challenges

Figueiredo

Santos

Torres

et al. 2023

An. Acad. Bras. Ciênc.

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The investigation of cultivation and management techniques that take into account behaviour and animal welfare becomes important due to their direct relationship with animal performance. This study aimed to classify juvenile Oreochromis niloticus by personality and compare their performance at exploration and competition tasks. The new object test was used to select bold and shy animals, which were then tested to see which first approached an object. The food competition test involved placing three feed pellets inside a cylinder and measuring the time taken until the pellet was eaten. The new object test found bold animals with a shorter mean time to approach the object than shy animals approaching 65% of the first object when compared to shy. The food competition test found that the bold animals ingested the first pellet more times and with a shorter average time of ingestion than shy animals, no difference in the second intake, whereas the results for the third were same as those for the first. Shy animals had higher intake of the second pellet. Bold animals explored their environment faster in both challenges, while shy individuals exhibited ability to learn from the challenges imposed in the study.

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Negative effect of ectoparasite burdens on the condition factor from farmed tilapia Oreochromis niloticus in the Yucatan, Mexico

Cited by 17 publications

References 61 publications

A global review of problematic and pathogenic parasites of farmed tilapia

A global review of problematic and pathogenic parasites of farmed tilapia

Ecology and effects of metazoan parasites of fish in transitional waters

Behaviour of personality-screened juvenile Oreochromis niloticus in different challenges: Bold fish present more exploratory capacity and learning to face imposed challenges

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