Copepod and monogenean infection of fish under sea surface temperature anomalies

Morales-Serna, Francisco Neptalí; Olivas-Padilla, Lorenia; Marín‐Enríquez, Emigdio; Osuna-Cabanillas, Juan M.; Aguirre‐Villaseñor, Hugo; Hernández-Covarrubias, Vicente

doi:10.1016/j.seares.2021.102098

Cited by 5 publications

(5 citation statements)

References 36 publications

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“…The higher prevalence of C. confusus on Ca. caninus in cold seas is similar to that observed in another tropical sea louse-C. omissus on Scomberomorus sierra [11]. These findings contrast with the population dynamics of sea lice at higher latitudes.…”

Section: Changes In Infection Levels and Transcriptomic Responsesupporting

confidence: 79%

“…It is projected that by the year 2100, the sea temperatures will increase by 2 • C [58]. This increase can have negative consequences on sea lice populations, primarily because a 2 • C rise might exceed the tolerance limits of certain species [8,11,59]. Based on the present study, we could expect that climate change will reduce some tropical sea lice populations during extreme warming events.…”

Section: Changes In Infection Levels and Transcriptomic Responsementioning

confidence: 64%

“…This is because in warmer waters, the reproduction rate of sea lice is faster and the development time is shorter than in colder waters [7][8][9]. Conversely, some tropical species (e.g., L. simplex) thrive in warmer (30 • C) conditions [10], but others (e.g., C. omissus) do so in cooler (22 • C) environments [11]. Thus, global climate change can also be expected to perturb fish-parasite systems, initially by amplifying parasite metabolism, resulting in their more rapid spread; however, if the optimal temperature for growth and transmission is exceeded, parasite infections will decrease [12].…”

Section: Introductionmentioning

confidence: 99%

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Population and Transcriptomic Changes of the Tropical Fish Parasite Caligus confusus (Copepoda: Caligidae) with Seasonal Variations in Sea Temperature

Pimentel-Acosta,

Caña-Bozada,

Osuna-Cabanillas

et al. 2023

Fishes

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Fish–parasite systems could be subject to two scenarios under climate change: (i) increased water temperature might enhance parasite metabolism, allowing the parasite to spread rapidly; (ii) parasitism could decrease if the optimal temperature for growth and transmission is exceeded. Sea lice are parasitic copepods commonly found on marine fish in tropical regions, yet their biology remains poorly investigated. In this study, we analyzed the changes in infection levels and the transcriptomic response of the tropical sea louse Caligus confusus to two seasonal seawater temperatures (30 °C, “warm”, and 21 °C, “cold”). The prevalence of C. confusus was significantly higher in the colder water. A de novo transcriptomic analysis of C. confusus, the first for a tropical sea louse, revealed 426 over-expressed and 1402 down-expressed transcripts at the lower temperature. In particular, we observed over-expression of transcripts encoding vitellogenins (vit-1, vit-2, vit-4, and vit-6) and matrix metalloproteinases (mmp-2 and mmp-9), which are involved in reproduction and development. These results suggest that the cold tropical season physiologically favors C. confusus and that low temperature favors embryo development, which might ultimately lead to a higher prevalence. It is possible, therefore, that climate change could reduce some tropical sea lice populations during extreme warming events.

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Section: Changes In Infection Levels and Transcriptomic Responsesupporting

confidence: 79%

Section: Changes In Infection Levels and Transcriptomic Responsementioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Population and Transcriptomic Changes of the Tropical Fish Parasite Caligus confusus (Copepoda: Caligidae) with Seasonal Variations in Sea Temperature

Pimentel-Acosta,

Caña-Bozada,

Osuna-Cabanillas

et al. 2023

Fishes

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“…Some studies on the parasite community of S. sierra have been developed from a systematic, taxonomic and ecological perspective in Mexico (Santos-Bustos et al, 2020;Bárcenas et al, 2021;Morales-Serna et al, 2021). In this sense, the annual variation of the helminth community of 151 individuals of S. sierra in Mazatlán, Mexico has been analyzed, recording 13 helminth taxa, with the best represented group being digeneans (Barcenas et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Ectoparasitic community of the gills of Pacific sierra Scomberomorus sierra Jordan & Starks, 1895 (Actinopteri: Scombridae) from northern Peru

Ferré-Alcántara,

Minaya,

Alvariño

et al. 2023

MACN

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Scombrids have mainly been studied for systematic, zoogeographic and parasitological purposes; however, there are few studies focused on the interaction between ecological parameters and the parasite community of a given host. Therefore, the objective of this research was to analyze the ectoparasite community of Scomberomorus from Northern Peru. A total of 58 specimens of S. sierra were obtained and were necropsied to search for parasites, which were collected and preserved. The main parasitological indices, degree of aggregation, parasite association with size, weight and sex, and finally, the alpha diversity indices of these parasitic fauna were calculated. 98% of the fish were parasitized by at least one parasitic species. The parasites with the highest prevalence were Didymocylindrus sp. (Trematoda) and Thoracocotyle crocea (Monogenea), while the parasite with the highest average intensity was Caligus pelamydis (Copepoda). The mean intensity and abundance of infection of T. crocea and unidentified Didymozoidae. were found to be positively related to the size of S. sierra. Sex showed significant differences only with the mean abundance of T. crocea, and with the mean intensity of Didymocylindrus sp. The five new records of parasites in S. sierra from Peru were Didymocylindrus sp., Glomeritrema sp., unidentified Didymozoidae, Scomberocotyle scomberomori, and C. pelamydis. This study represents the first ecologicalparasitic record for S. sierra in northern Peru.

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“…Previous research on monogenean and parasitic copepods concentrated on the geographic distribution of parasite species, simultaneous quarantine, the effect of contaminated water temperature, and interspecies competition [10][11][12]. Despite this, there has been little published study on how monogeneans and parasitic copepods interact given their varied environments.…”

mentioning

confidence: 99%

Correlation of endemicity between monogenean trematode, Microcotyle sebastis, and parasitic copepods in Korean rockfish, Sebastes schlegelii, from a fish farm in Tongyeong-si, Gyeongsangnam-do, Korea

Woo,

Kang,

Kim

et al. 2023

Parasites Hosts Dis

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Infestations of parasites, particularly those caused by copepods and monogeneans, are a major hindrance to aquaculture and have a big negative economic impact. Sebastes schlegelii, a farmed Korean rockfish, is particularly prone to copepods and monogeneans. This study comprehended how parasitic copepods and rockfish from a farm in Tongyeong-si, Gyeongsangnam-do, Korea, are related to the monogenean trematode Microcotyle sebastis. Our research revealed that monogeneans predominated, with a rate of 98.4% and an average infection intensity of 7 per infected fish. With an average infection intensity of 4 per sick fish, the infection rate for parasitic copepods was equally considerable, coming in at 91.7%. The high co-infection rate of both parasite families, at 90.8%, is noteworthy. Furthermore, Lepeophtheirus elegans and Peniculus truncatus, 2 parasitic copepod species, were discovered to have M. sebastis eggs attached to their bodies. This demonstrates a connection between parasitic copepod infestations in farmed Korean rockfish and the monogenean trematode M. sebastis. These discoveries highlight the necessity for creating more potent parasite control methods for the aquaculture sector and shed light on the intricate relationships between various parasite species.

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Copepod and monogenean infection of fish under sea surface temperature anomalies

Cited by 5 publications

References 36 publications

Population and Transcriptomic Changes of the Tropical Fish Parasite Caligus confusus (Copepoda: Caligidae) with Seasonal Variations in Sea Temperature

Population and Transcriptomic Changes of the Tropical Fish Parasite Caligus confusus (Copepoda: Caligidae) with Seasonal Variations in Sea Temperature

Ectoparasitic community of the gills of Pacific sierra Scomberomorus sierra Jordan & Starks, 1895 (Actinopteri: Scombridae) from northern Peru

Correlation of endemicity between monogenean trematode, Microcotyle sebastis, and parasitic copepods in Korean rockfish, Sebastes schlegelii, from a fish farm in Tongyeong-si, Gyeongsangnam-do, Korea

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