Transmission Strategies Used by Gyrodactylus gasterostei (Monogenea) on Its Host, the Three-Spined Stickleback Gasterosteus aculeatus

Grano-Maldonado, Mayra I.; Moreno-Navas, Juan; Rodríguez-Santiago, Maria Amparo

doi:10.3390/fishes3020020

Cited by 6 publications

(4 citation statements)

References 32 publications

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“…All gyrodactylid life stages can be transmitted, but there seems to be a higher probability of transmission when worms are mature. This occurs in two situations: the worm has given birth at least once, as in G. salaris (Olstad et al ., 2006), or when the male reproductive organ is developed, as in G. sphinx (Dmitrieva, 2003) and G. gasterostei (Grano-Maldonado et al ., 2018). The male reproductive system in gyrodactylids consists of a posterior testis, an anterior seminal vesicle, and a penis which becomes functional once the second embryo has commenced development (Cable and Harris, 2002).…”

Section: Abiotic Factors Affecting Gyrodactylid Transmissionmentioning

confidence: 99%

Transmission dynamics of ectoparasitic gyrodactylids (Platyhelminthes, Monogenea): An integrative review

2022

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Parasite transmission is the ability of pathogens to move between hosts. As a key component of the interaction between hosts and parasites, it has crucial implications for the fitness of both. Here, we review the transmission dynamics of Gyrodactylus species, which are monogenean ectoparasites of teleost fishes and a prominent model for studies of parasite transmission. Particularly, we focus on the most studied host–parasite system within this genus: guppies, Poecilia reticulata, and G. turnbulli/G. bullatarudis. Through an integrative literature examination, we identify the main variables affecting Gyrodactylus spread between hosts, and the potential factors that enhance their transmission. Previous research indicates that Gyrodactylids spread when their current conditions are unsuitable. Transmission depends on abiotic factors like temperature, and biotic variables such as gyrodactylid biology, host heterogeneity, and their interaction. Variation in the degree of social contact between hosts and sexes might also result in distinct dynamics. Our review highlights a lack of mathematical models that could help predict the dynamics of gyrodactylids, and there is also a bias to study only a few species. Future research may usefully focus on how gyrodactylid reproductive traits and host heterogeneity promote transmission and should incorporate the feedbacks between host behaviour and parasite transmission.

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Section: Abiotic Factors Affecting Gyrodactylid Transmissionmentioning

confidence: 99%

Transmission dynamics of ectoparasitic gyrodactylids (Platyhelminthes, Monogenea): An integrative review

2022

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“…Transmisi monogenea terjadi ketika ikan sehat berenang di dekat ikan sakit. Selain itu, pergerakan parasit sesuai dengan arah pusaran yang dihasilkan oleh ikan atau pelepasan parasit diperantarai oleh turbulensi air Grano-Maldonado et al (2018b). Sifat ikan kerapu yang diam dan berenang di dasar bak memungkinkan penyebaran Pseudorhabdosynochus spp.…”

Section: Perkembangan Jumlah Pseudorhabdosynochus Spp Dan Telurnyaunclassified

PERKEMBANGAN JUMLAH EKTOPARASIT Pseudorhabdosynochus spp. PADA INSANG KERAPU HIBRIDA CANTIK (Epinephelus fuscoguttatus x E. polyphekadion) MELALUI METODE KOHABITASI

Mastuti¹,

Zafran²,

Mahardika³

2021

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Genus Pseudorhabdosynocus merupakan Monogenea yang sering menginfeksi ikan kerapu. Pengaruh perbedaan jarak antara ikan sakit dengan ikan sehat terhadap perkembangan jumlah Pseudorhabdosynochus spp. pada ikan kerapu hibrida “cantik” dipelajari dalam penelitian ini melalui metode kohabitasi. Kohabitasi dilakukan dengan dua metode yaitu (a) menempatkan lima ekor ikan sakit ke dalam keranjang dengan jarak 25 cm dari dasar bak, dan (b) menempatkan lima ekor ikan sakit ke dalam keranjang dengan jarak 10 cm dari dasar bak. Kedua keranjang tersebut diapungkan ke dalam bak plastik berbeda dengan volume 100 L air laut (33 ppt) yang masing-masing telah berisi 30 ekor ikan kerapu hibrida “cantik” sehat. Masing-masing lima ekor ikan dari kedua metode kohabitasi diambil pada hari ke-2, 4, 6, 8, 10, dan 15 pemeliharaan. Hasil penelitian menunjukkan bahwa infeksi buatan menggunakan metode kohabitasi (b) lebih cepat menyebarkan Pseudorhabdosynochus spp. dari ikan sakit ke ikan sehat dibandingkan dengan metode kohabitasi (a). Perkembangan populasi Pseudorhabdosynochus spp. dan telurnya pada metode kohabitasi (b) lebih tinggi yaitu 1.495 ± 206,3 ekor/ikan dan 18,6 ± 3,8 telur/ikan dibandingkan dengan metode kohabitasi (a) yaitu 163,2 ± 16,3 ekor/ikan dan 3,8 ± 0,7 telur/ikan pasca 15 hari kohabitasi. Secara histopatologi, lamela insang yang terinfeksi Pseudorhabdosynochus spp. menunjukkan adanya hyperplasia epitel sel filamen insang yang menimbulkan fusi filamen. Kerusakan filamen di hampir semua lamela insang menyebabkan terganggunya sistem pernapasan ikan kerapu. Hasil tersebut dapat disimpulkan bahwa penyebaran Pseudorhabdosynochus spp. semakin cepat dengan semakin dekat jarak kontak antara ikan sakit dengan ikan sehat.Pseudorhabdosynocus is a genus of Monogenea that frequently infect grouper fish. This study aimed to observe the changes of density patterns of Pseudorhabdosynochus spp. in hybrid grouper gill through cohabitation. Two cohabitation methods were applied to understand the effects of distance between sick and healthy fish in terms of parasite infection. The cohabitation methos were arranged as follows: (a) five fish infected with Pseudorhabdosynochus spp. were placed into a basket at a distance of 25 cm from the bottom of the tank, and (b) five fish infected with Pseudorhabdosynochus spp. were placed into a basket at a distance of 10 cm from the bottom of the tank. The two baskets were floated into different plastic tanks of 100 L of seawater (33 ppt), each of which contained 30 healthy hybrid groupers. Each of the five fish from the two cohabitation methods was sampled on day 2, 4, 6, 8, 10, and 15 after cohabitation. The results showed that the spread of Pseudorhabdosynochus spp. from sick fish to healthy fish with the cohabitation method b was faster than the cohabitation method a. The development number of Pseudorhabdosynochus spp. and its eggs in the cohabitation method b were higher, reaching 1,495 ± 206.3 parasite/fish and 18.6 ± 3.8 eggs/fish than the cohabitation method a, 163.2 ± 16.3 parasite/fish and 3.8 ± 0.7 eggs/fish after 15 days of cohabitation. Histopathologically, gill lamella infected with Pseudorhabdosynochus spp. showed the presence of epithelial hyperplasia of gill filament cells causing fusion. Damage of the gill filament in all of gill lamella has caused disruption of the grouper breathing system. From these findings, it can be concluded that the spread of Pseudorhabdosynochus spp. was faster if the distance of direct contact between sick and healthy fish was closer.

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“…Gyrodactylosis merupakan penyakit yang disebabkan oleh infestasi Gyrodactylus. Gyrodactylosis pada ikan dapat menyebabkan lendir berlebih pada kulit, hiperplasia pada filamen insang, perubahan warna pada kulit serta kematian (Ángeles Esteban, 2012;Grano-Maldonado et al, 2018;Cone and Odense, 1984).…”

Section: Pendahuluanunclassified

“…Terrazas (2007) mengemukakan bahwa secara alami, ikan yang terinfestasi parasit monogenea mengalami proliferasi dan hiperplasia epitel insang sebagai upaya pertahanan diri atau awal dari timbulnya respons imun. Bagian kulit dan insang dapat mengalami perubahan morfologi dan atau histopatologi ketika terkena substansi yang berbahaya atau terpengaruh pergerakan Gyrodactylus (Grano-Maldonado et al, 2018). Menurut Ozerov et al (2010), Gyrodatylus menginfestasi ikan dan menimbulkan gangguan fungsi dengan cara mengonsumsi mukus dan merusak sel epitel ikan menggunakan hookletnya.…”

Section: Hasil Dan Pembahasanunclassified

PATOGENESIS Gyrodactylus : PENENTUAN DERAJAT INFESTASI, PENGAMATAN GEJALA KLINIS DAN PATOLOGI INSANG IKAN MAS (Cyprinus carpio)

Sari¹,

Mahasri²,

Koesnoto³

2020

JAFH

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Penelitian ini bertujuan untuk mengetahui patogenesis infestasi Gyrodactylus yang menginfestasi insang ikan mas (Cyprinus carpio). Patogenesis diamati berdasarkan tingkat derajat infestasi, pengamatan gejala klinis dan patologi insang ikan mas (Cyprinus carpio). Sebanyak 1.440 ekor ikan mas terinfestasi Gyrodactylus diambil dan diamati gejala klinis, penentuan derajat infestasi serta dilakukan pengamatan patologi anatomi dan histopatologi insang. Hasil pengamatan sampel menunjukkan pada tingkat infestasi ringan dan berat, kerusakan yang ditimbulkan antara lain hiperplasia, hipertropi dan hemoragi. Sedangkan ikan mas normal menunjukkan gambaran histopatologi insang yang normal.

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Transmission Strategies Used by Gyrodactylus gasterostei (Monogenea) on Its Host, the Three-Spined Stickleback Gasterosteus aculeatus

Cited by 6 publications

References 32 publications

Transmission dynamics of ectoparasitic gyrodactylids (Platyhelminthes, Monogenea): An integrative review

Transmission dynamics of ectoparasitic gyrodactylids (Platyhelminthes, Monogenea): An integrative review

PERKEMBANGAN JUMLAH EKTOPARASIT Pseudorhabdosynochus spp. PADA INSANG KERAPU HIBRIDA CANTIK (Epinephelus fuscoguttatus x E. polyphekadion) MELALUI METODE KOHABITASI

PATOGENESIS Gyrodactylus : PENENTUAN DERAJAT INFESTASI, PENGAMATAN GEJALA KLINIS DAN PATOLOGI INSANG IKAN MAS (Cyprinus carpio)

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