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Okon EM, Oyesiji AA, Okeleye ED, Kanonuhwa M, Khalifa NE, Eissa ESH, Mathew RT, Eissa MEH, Alqahtani MA, Abdelnour SA. The Escalating threat of climate change-driven diseases in fish: Evidence from a global perspective - A literature review. ENVIRONMENTAL RESEARCH 2024; 263:120184. [PMID: 39426450 DOI: 10.1016/j.envres.2024.120184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2024] [Revised: 10/16/2024] [Accepted: 10/17/2024] [Indexed: 10/21/2024]
Abstract
Climate change has brought significant alterations to the aquatic environment, leading to the rapid spread of infectious fish diseases with increasing water temperatures. It is crucial to understand how aquatic pathogens will impact fish in the context of climate change. This study aimed to assess the effects of climate change on fish diseases globally. Data from 104 papers published between 2003 and 2022 were analyzed to identify recent trends in the field. The majority of the studies (54%) focused on parasites, particularly proliferative kidney disease, while 22% examined bacteria. The United States accounted for 19% of the studies, followed by Canada at 14%, covering a wide range of fish species. More research was published on farmed fish (54%) than wild fish (30%), with a higher emphasis on freshwater species (62%) compared to marine species (34%). Most published studies (64%) focused on the local environment rather than the farm level (7%). The findings highlight temperature as a significant threat to global aquaculture and fisheries, impacting the progression of fish diseases. These impacts could be exacerbated by factors such as pH, salinity, and ocean acidification, posing challenges to fish health. Therefore, there is a pressing need for enhanced research and management strategies to address these issues effectively in the future.
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Affiliation(s)
- Ekemini Moses Okon
- Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium; Department of Biology, Vegetal Biology and Ecology, Universitat Autònoma de Barcelona, Cerdanyola, Barcelona, Spain
| | - Adeola Ayotope Oyesiji
- Faculty of Sciences, Ghent University, Ghent, Belgium; Department of Biological Sciences, Fisheries Ecology and Aquaculture, Universitetet I Bergen, Norway
| | - Ezekiel Damilola Okeleye
- Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium; Aquaculture and Fisheries Group, Wageningen University, Netherlands
| | - Mercy Kanonuhwa
- Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium; Aquaculture and Fisheries Group, Wageningen University, Netherlands
| | - Norhan E Khalifa
- Department of Physiology, Faculty of Veterinary Medicine, Matrouh University, Fuka, Matrouh, 51744, Egypt
| | - El-Sayed Hemdan Eissa
- Fish Research Centre, Faculty of Agricultural Environmental Sciences, Arish University, Egypt.
| | - Roshmon Thomas Mathew
- Fish Resources Research Center, King Faisal University, Hofuf-420, Al-Ahsa, 31982, Saudi Arabia
| | - Moaheda E H Eissa
- Biotechnology Department, Fish Farming and Technology Institute, Suez Canal University, Ismailia, Egypt
| | - Mohammed A Alqahtani
- Department of Biology, College of Science, King Khalid University, 61413, Abha, Saudi Arabia
| | - Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
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Riera-Ferrer E, Del Pozo R, Muñoz-Berruezo U, Palenzuela O, Sitjà-Bobadilla A, Estensoro I, Piazzon MC. Mucosal affairs: glycosylation and expression changes of gill goblet cells and mucins in a fish-polyopisthocotylidan interaction. Front Vet Sci 2024; 11:1347707. [PMID: 38655531 PMCID: PMC11035888 DOI: 10.3389/fvets.2024.1347707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 03/22/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Secreted mucins are highly O-glycosylated glycoproteins produced by goblet cells in mucosal epithelia. They constitute the protective viscous gel layer overlying the epithelia and are involved in pathogen recognition, adhesion and expulsion. The gill polyopisthocotylidan ectoparasite Sparicotyle chrysophrii, feeds on gilthead seabream (Sparus aurata) blood eliciting severe anemia. Methods Control unexposed and recipient (R) gill samples of gilthead seabream experimentally infected with S. chrysophrii were obtained at six consecutive times (0, 11, 20, 32, 41, and 61 days post-exposure (dpe)). In histological samples, goblet cell numbers and their intensity of lectin labelling was registered. Expression of nine mucin genes (muc2, muc2a, muc2b, muc5a/c, muc4, muc13, muc18, muc19, imuc) and three regulatory factors involved in goblet cell differentiation (hes1, elf3, agr2) was studied by qPCR. In addition, differential expression of glycosyltransferases and glycosidases was analyzed in silico from previously obtained RNAseq datasets of S. chrysophrii-infected gilthead seabream gills with two different infection intensities. Results and Discussion Increased goblet cell differentiation (up-regulated elf3 and agr2) leading to neutral goblet cell hyperplasia on gill lamellae of R fish gills was found from 32 dpe on, when adult parasite stages were first detected. At this time point, acute increased expression of both secreted (muc2a, muc2b, muc5a/c) and membrane-bound mucins (imuc, muc4, muc18) occurred in R gills. Mucins did not acidify during the course of infection, but their glycosylation pattern varied towards more complex glycoconjugates with sialylated, fucosylated and branched structures, according to lectin labelling and the shift of glycosyltransferase expression patterns. Gilthead seabream gill mucosal response against S. chrysophrii involved neutral mucus hypersecretion, which could contribute to worm expulsion and facilitate gas exchange to counterbalance parasite-induced hypoxia. Stress induced by the sparicotylosis condition seems to lead to changes in glycosylation characteristic of more structurally complex mucins.
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Affiliation(s)
| | | | | | | | | | - Itziar Estensoro
- Fish Pathology Group, Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS, CSIC), Castellón, Spain
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Cappelletti A, Bouguerche C. "Something old, something new, something borrowed, and the oioxeny is true": description of Plectanocotyle jeanloujustinei n. sp. (Polyopisthocotylea, Plectanocotylidae) from the MNHN Helminthology collection with novel molecular and morphological data for P. gurnardi (Van Beneden & Hesse, 1863) ( sensu stricto) from Sweden. Int J Parasitol Parasites Wildl 2024; 23:100914. [PMID: 38419736 PMCID: PMC10901078 DOI: 10.1016/j.ijppaw.2024.100914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024]
Abstract
Natural history museums worldwide house billions of apposite specimens, offering the potential for cost-free parasitological datasets. Herein, we provide novel morphological and molecular data (28S and cox1) for the polyopisthocotylean Plectanocotyle gurnardi sensu stricto from the type-host Eutrigla gurnardus from Sweden based on newly collected specimens from the Northeast Atlantic, and specimen from T. Odhner's collections at the Swedish Museum of Natural History (Stockholm, Sweden). The newly generated 28S sequences of P. gurnardi from E. gurnardus from the Northeast Atlantic were identical to those from the Western Mediterranean, and nested in a single clade, suggesting the presence of a single species. A 28S sequences of P. gurnardi sensu stricto from Sweden and those from the U.K. (type locality for P. caudata) were identical; we confirm that P. caudata and P. gurnardi are conspecific and formally synonymize them. A single 28S sequence of Plectanocotyle sp. from Chelidonichthys lastoviza off France differed from P. gurnardi from the Northeast Atlantic by 3-4 % and from P. gurnardi from France by 3%. Plectanocotyle sp. ex C. lastoviza off France is clearly not P. gurnardi, suggesting an oioxenic specificity of P. gurnardi to E gurnardus. Careful re-examination of Plectanocotyle cf. gurnardi from C. lastoviza from the Western Mediterranean from the Helminthology collection of Muséum national d'Histoire naturelle (Paris, France) revealed that it differs from all congeners by morphometry (size of clamps, of terminal lappet and its hamuli and uncinuli, and size of atrial spines). The cox1 divergences between P. cf. gurnardi and P. major, P. lastovizae, and P. gurnardi sensu stricto were 10-11 %, 10-11 % and 8 % respectively, falling within the interspecific variations range. Plectanocotyle from the Mediterranean is described as a new species, P. jeanloujustinei n. sp. We apprise nomenclature problems in Plectanocotyle and consider P. elliptica a species inquirenda.
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Affiliation(s)
- Alice Cappelletti
- Department of Life and Environmental Sciences, Università degli Studi di Cagliari, Cagliari, Italy
- IFREMER, Channel and North Sea Fisheries Research Unit, 150 Quai Gambetta, BP 699, F-62 321, Boulogne-sur-Mer, France
- ANSES, Laboratory for Food Safety, 62200, Boulogne-sur-Mer, France
| | - Chahinez Bouguerche
- Department of Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05, Stockholm, Sweden
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Poulin R. Light pollution may alter host-parasite interactions in aquatic ecosystems. Trends Parasitol 2023; 39:1050-1059. [PMID: 37722935 DOI: 10.1016/j.pt.2023.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/20/2023]
Abstract
With growing human populations living along freshwater shores and marine coastlines, aquatic ecosystems are experiencing rising levels of light pollution. Through its effects on hosts and parasites, anthropogenic light at night can disrupt host-parasite interactions evolved under a normal photoperiod. Yet its impact on aquatic parasites has been ignored to date. Here, I discuss the direct effects of light on the physiology and behaviour of parasite infective stages and their hosts. I argue that night-time lights can change the spatiotemporal dynamics of infection risk and drive the rapid evolution of parasites. I then highlight knowledge gaps and how impacts on parasitic diseases should be incorporated into the design of measures aimed at mitigating the impact of anthropogenic light on wildlife.
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Affiliation(s)
- Robert Poulin
- Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand.
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Rigos G, Glaropoulos A, Tzokas K, Gourzioti E, Kogiannou D, Golomazou E. A field evaluation of orally administered praziquantel against the gill fluke Sparicotyle chrysophrii infecting gilthead seabream (Sparus aurata). JOURNAL OF FISH DISEASES 2023; 46:1439-1443. [PMID: 37650418 DOI: 10.1111/jfd.13854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/11/2023] [Accepted: 08/21/2023] [Indexed: 09/01/2023]
Affiliation(s)
- George Rigos
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Anavyssos, Greece
| | | | | | - Evgenia Gourzioti
- Laboratory of Ichthyology and Fish diseases, Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece
- Department of Aquaculture and Fish Diseases, Faculty of Veterinary Science, School of Health Sciences, University of Thessaly, Karditsa, Greece
| | - Dimitra Kogiannou
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Anavyssos, Greece
| | - Eleni Golomazou
- Department of Ichthyology and Aquatic Environment - Aquaculture Laboratory, School of Agricultural Sciences, University of Thessaly, Volos, Greece
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Scott ME. Helminth-host-environment interactions: Looking down from the tip of the iceberg. J Helminthol 2023; 97:e59. [PMID: 37486085 DOI: 10.1017/s0022149x23000433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
In 1978, the theory behind helminth parasites having the potential to regulate the abundance of their host populations was formalized based on the understanding that those helminth macroparasites that reduce survival or fecundity of the infected host population would be among the forces limiting unregulated host population growth. Now, 45 years later, a phenomenal breadth of factors that directly or indirectly affect the host-helminth interaction has emerged. Based largely on publications from the past 5 years, this review explores the host-helminth interaction from three lenses: the perspective of the helminth, the host, and the environment. What biotic and abiotic as well as social and intrinsic host factors affect helminths? What are the negative, and positive, implications for host populations and communities? What are the larger-scale implications of the host-helminth dynamic on the environment, and what evidence do we have that human-induced environmental change will modify this dynamic? The overwhelming message is that context is everything. Our understanding of second-, third-, and fourth-level interactions is extremely limited, and we are far from drawing generalizations about the myriad of microbe-helminth-host interactions.Yet the intricate, co-evolved balance and complexity of these interactions may provide a level of resilience in the face of global environmental change. Hopefully, this albeit limited compilation of recent research will spark new interdisciplinary studies, and application of the One Health approach to all helminth systems will generate new and testable conceptual frameworks that encompass our understanding of the host-helminth-environment triad.
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Affiliation(s)
- M E Scott
- Institute of Parasitology, McGill University (Macdonald Campus), 21,111 Lakeshore Road, Ste-Anne de Bellevue, QuebecH9X 3V9, Canada
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Stella E, Pastres R, Pasetto D, Kolega M, Mejdandžić D, Čolak S, Musmanno A, Gustinelli A, Mari L, Bertuzzo E. A stratified compartmental model for the transmission of Sparicotyle chrysophrii (Platyhelminthes: Monogenea) in gilthead seabream ( Sparus aurata) fish farms †. ROYAL SOCIETY OPEN SCIENCE 2023; 10:221377. [PMID: 37206963 PMCID: PMC10189595 DOI: 10.1098/rsos.221377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 04/13/2023] [Indexed: 05/21/2023]
Abstract
The rapid development of intensive fish farming has been associated with the spreading of infectious diseases, pathogens and parasites. One such parasite is Sparicotyle chrysophrii (Platyhelminthes: Monogenea), which commonly infects cultured gilthead seabream (Sparus aurata)-a vital species in Mediterranean aquaculture. The parasite attaches to fish gills and can cause epizootics in sea cages with relevant consequences for fish health and associated economic losses for fish farmers. In this study, a novel stratified compartmental epidemiological model of S. chrysophrii transmission was developed and analysed. The model accounts for the temporal progression of the number of juvenile and adult parasites attached to each fish, as well as the abundance of eggs and oncomiracidia. We applied the model to data collected in a seabream farm, where the fish population and the number of adult parasites attached to fish gills were closely monitored in six different cages for 10 months. The model successfully replicated the temporal dynamics of the distribution of the parasite abundance within fish hosts and simulated the effects of environmental factors, such as water temperature, on the transmission dynamics. The findings highlight the potential of modelling tools for farming management, aiding in the prevention and control of S. chrysophrii infections in Mediterranean aquaculture.
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Affiliation(s)
- Elisa Stella
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, 30123 Venice, Italy
| | - Roberto Pastres
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, 30123 Venice, Italy
| | - Damiano Pasetto
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, 30123 Venice, Italy
| | | | | | | | - Antares Musmanno
- Department of Veterinary Medical Sciences, Alma Mater Studiorum Università di Bologna, 40064 Bologna, Italy
| | - Andrea Gustinelli
- Department of Veterinary Medical Sciences, Alma Mater Studiorum Università di Bologna, 40064 Bologna, Italy
| | - Lorenzo Mari
- Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, 20133 Milano, Italy
| | - Enrico Bertuzzo
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, 30123 Venice, Italy
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Antibacterial and Antiparasitic Activity of Propyl-Propane-Thiosulfinate (PTS) and Propyl-Propane-Thiosulfonate (PTSO) from Allium cepa against Gilthead Sea Bream Pathogens in In Vitro and In Vivo Studies. Molecules 2022; 27:molecules27206900. [PMID: 36296491 PMCID: PMC9611463 DOI: 10.3390/molecules27206900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/17/2022] Open
Abstract
The use of phytogenic extracts is considered a sustainable strategy for the prevention of fish diseases, including Alliaceae as a potential option due to their variety of bioactive compounds. In this study, we analyzed the antibacterial and antiparasitic potential of propyl-propane-thiosulfinate (PTS) and propyl-propane-thiosulfonate (PTSO) from onions. The in vitro activity against Pseudomonas anguilliseptica, Tenacibaculum maritimum, and Photobacterium damselae of both compounds was tested. In addition, the viability of Sparicotyle chrysophrii larvae was evaluated. Moreover, a diet that consisted of a blend of PTS/PTSO (ALLIUM) was used. A total of 90 gilthead sea bream juveniles were tested against P. damselae subsp. Piscicida after 12 weeks of dietary administration. Furthermore, 150 fish with a rate of 10-15 parasites/fish were fed for 21 days and the number of gill parasites was recorded. All strains were sensitive to both compounds. PTSO showed the highest inhibitory effect against all target strains, while PTS showed higher effectiveness against S. chrysophrii. Fish from ALLIUM group presented the highest probability of survival, increasing up to 91.1%, whereas in the control group, the probability of survival was 66.7%. The number of parasites in the gilthead sea bream decreased in the ALLIUM group over time. These results suggest the inclusion of PTS and PTSO in feed as a natural strategy to prevent antibacterial and antiparasitic fish diseases.
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Espinosa MF, Verbyla ME, Vassalle L, Leal C, Leroy-Freitas D, Machado E, Fernandes L, Rosa-Machado AT, Calábria J, Chernicharo C, Mota Filho CR. Reduction and liquid-solid partitioning of SARS-CoV-2 and adenovirus throughout the different stages of a pilot-scale wastewater treatment plant. WATER RESEARCH 2022; 212:118069. [PMID: 35077942 PMCID: PMC8759026 DOI: 10.1016/j.watres.2022.118069] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 01/05/2022] [Accepted: 01/11/2022] [Indexed: 05/04/2023]
Abstract
Investigating waterborne viruses is of great importance to minimizing risks to public health. Viruses tend to adsorb to sludge particles from wastewater processes by electrostatic and hydrophobic interactions between virus, aquatic matrix, and particle surface. Sludge is often re-used in agriculture; therefore, its evaluation is also of great interest to public health. In the present study, a pilot scale system treating real domestic wastewater from a large city in Brazil was used to evaluate the removal, the overall reduction, and liquid-solid partitioning of human adenovirus (HAdV), the novel coronavirus (SARS-CoV-2) and fecal indicators (F-specific coliphages and E. coli). The system consists of a high-rate algal pond (HRAP) post-treating the effluent of an upflow anaerobic sludge blanket (UASB) reactor. Samples were collected from the influent and effluent of each unit, as well as from the sludge of the UASB and from the microalgae biomass in the HRAP. Pathogens and indicators were quantified by quantitative polymerase chain reaction (qPCR) (for HAdV), qPCR with reverse transcription (RTqPCR) (for SARS-CoV-2), the double agar plaque assay (for coliphages), and the most probable number (MPN) method (for E. coli). The removal and overall reduction of HAdV and SARS-CoV-2 was greater than 1-log10. Almost 60% of remaining SARS-CoV-2 RNA and more than 70% of remaining HAdV DNA left the system in the sludge, demonstrating that both viruses may have affinity for solids. Coliphages showed a much lower affinity to solids, with only 3.7% leaving the system in the sludge. The system performed well in terms of the removal of organic matter and ammoniacal nitrogen, however tertiary treatment would be necessary to provide further pathogen reduction, if the effluent is to be reused in agriculture. To our knowledge, this is the first study that evaluated the reduction and partitioning of SARS-CoV-2 and HAdV through the complete cycle of a wastewater treatment system consisting of a UASB reactor followed by HRAPs.
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Affiliation(s)
| | | | - Lucas Vassalle
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Cintia Leal
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | | | - Elayne Machado
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Luyara Fernandes
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | | | - Juliana Calábria
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Carlos Chernicharo
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
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Cascarano MC, Stavrakidis-Zachou O, Mladineo I, Thompson KD, Papandroulakis N, Katharios P. Mediterranean Aquaculture in a Changing Climate: Temperature Effects on Pathogens and Diseases of Three Farmed Fish Species. Pathogens 2021; 10:1205. [PMID: 34578236 PMCID: PMC8466566 DOI: 10.3390/pathogens10091205] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 02/07/2023] Open
Abstract
Climate change is expected to have a drastic effect on aquaculture worldwide. As we move forward with the agenda to increase and diversify aquaculture production, rising temperatures will have a progressively relevant impact on fish farming, linked to a multitude of issues associated with fish welfare. Temperature affects the physiology of both fish and pathogens, and has the potential to lead to significant increases in disease outbreaks within aquaculture systems, resulting in severe financial impacts. Significant shifts in future temperature regimes are projected for the Mediterranean Sea. We therefore aim to review and discuss the existing knowledge relating to disease outbreaks in the context of climate change in Mediterranean finfish aquaculture. The objective is to describe the effects of temperature on the physiology of both fish and pathogens, and moreover to list and discuss the principal diseases of the three main fish species farmed in the Mediterranean, namely gilthead seabream (Sparus aurata), European seabass (Dicentrarchus labrax), and meagre (Argyrosomus regius). We will attempt to link the pathology of each disease to a specific temperature range, while discussing potential future disease threats associated with the available climate change trends for the Mediterranean Sea.
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Affiliation(s)
- Maria Chiara Cascarano
- Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, 71500 Heraklion, Greece; (M.C.C.); (O.S.-Z.); (N.P.)
- Department of Biology, University of Crete, 71003 Heraklion, Greece
| | - Orestis Stavrakidis-Zachou
- Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, 71500 Heraklion, Greece; (M.C.C.); (O.S.-Z.); (N.P.)
- Department of Biology, University of Crete, 71003 Heraklion, Greece
| | - Ivona Mladineo
- Biology Center of Czech Academy of Sciences, Laboratory of Functional Helminthology, Institute of Parasitology, 370 05 Ceske Budejovice, Czech Republic;
| | - Kim D. Thompson
- Vaccines and Diagnostics, Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian EH26 0PZ, UK;
| | - Nikos Papandroulakis
- Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, 71500 Heraklion, Greece; (M.C.C.); (O.S.-Z.); (N.P.)
| | - Pantelis Katharios
- Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, 71500 Heraklion, Greece; (M.C.C.); (O.S.-Z.); (N.P.)
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11
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Shvydka S, Cadarso-Suárez C, Ballová D, Sarabeev V. Patterns of monogenean abundance in native and invasive populations of Planiliza haematocheila (Teleostei: Mugilidae): interactions between climate and host defence mechanisms explain parasite release. Int J Parasitol 2020; 50:1023-1031. [PMID: 32798531 DOI: 10.1016/j.ijpara.2020.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/06/2020] [Accepted: 06/11/2020] [Indexed: 11/29/2022]
Abstract
One of the most intriguing questions in invasive biology is how an introduced species changes its population parameters in a new environment. Translocation of free-living species commonly results in co-introduction of their parasites. The current study focuses on the abundance pattern of the monogenean parasite Ligophorus llewellyni of the pacific so-iuy mullet, Planiliza haematocheila, across the native and introduced distribution ranges. We evaluated parasite release by the so-iuy mullet by comparing abundance patterns of L. llewellyni under effects of the host length, water temperature and month of the year in the Sea of Japan and the Sea of Azov. Generalised additive models applied to analysis of parasite abundance data showed that relationships between the mean number of L. llewellyni and the three tested independent variables were not linear. Our results suggest that the introduced host lost a large amount of parasite abundance due to the effect of warm climate in a new region, which is mediated by host defence mechanisms. The abundance of L. llewellyni rapidly rose in autumn, as fish activity and immune response decrease, reached the maximum in winter and began to fall in spring as a warm temperature facilitates the fish immune defence. The abundance of L. llewellyni showed an initial increase in response to fish growth and reached an asymptote. The response curves built for native and introduced regions reached an asymptote at different fish body lengths, reflecting the fish growth rate, which is higher in the introduced range of P. haematocheila. We found that the carried parasite species holds the same trend in relationships compared with its native area, between the mean number of monogeneans per host and independent variables increasing abundance with fish length, low temperature and cold months. Our results open new perspectives for future research on statistical modelling of parasite abundance across native and introduced distribution ranges in order to provide deeper insight into host-parasite interactions of invasive populations.
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Affiliation(s)
- Svitlana Shvydka
- Department of Mathematics, Zaporizhzhia National University, Zhukovskogo 66, 69063 Zaporizhzhia, Ukraine
| | - Carmen Cadarso-Suárez
- Department of Statistical, Mathematical Analysis and Optimization, University of Santiago de Compostela, Rúa Lope Gómez de Marzoa, s/n. Campus vida, 15782 Santiago de Compostela, Spain
| | - Dominika Ballová
- Department of Mathematics and Descriptive Geometry, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Radlinského 11, 81005 Bratislava, Slovakia
| | - Volodimir Sarabeev
- Department of Biology, Zaporizhzhia National University, Zhukovskogo 66, 69063 Zaporizhzhia, Ukraine.
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