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Fishes 2018, 3(2), 20; https://doi.org/10.3390/fishes3020020

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

1
Departamento de Ciencias Biológicas, Unidad Regional Mazatlán, Universidad Autónoma de Occidente, Av. del Mar 1200, Flamingos, 82149 Mazatlan, Sinaloa, Mexico
2
Facultad de Ciencias Marinas, Universidad Autónoma de Sinaloa, Paseo Claussen s/n. A. P. 610, 82000 Mazatlan, Sinaloa, Mexico
3
Grupo de Oceanografía Física, Universidad de Málaga, 29016 Málaga, Spain
4
CONACyT-Universidad Autónoma del Carmen, Facultad de Ciencias Naturales, Centro de Investigación de Ciencias Ambientales (CICA), Av. Laguna de Términos s/n Col. Renovación 2da Sección, 24155 Ciudad del Carmen, Campeche, Mexico
*
Author to whom correspondence should be addressed.
Received: 27 February 2018 / Revised: 15 May 2018 / Accepted: 23 May 2018 / Published: 29 May 2018
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Abstract

The monogenean Gyrodactylus gasterostei and its host, the three-spined stickleback Gasterosteus aculeatus, were employed as a model system to investigate the influence of gyrodactylid maturity on host transfer. Laboratory experiments included the determination of maturity (presence of a male copulatory organ) and reproductive status (presence of a daughter parasite) of the transmitting worms. Parasites with a male copulatory organ were more likely to abandon the host and attempt a host transfer. Additionally, in vivo video observation suggested that detached worms employ water turbulence to assist their effective transfer onto a new host. View Full-Text
Keywords: Gyrodactylus; transmission; Monogenea; Gasterosteus aculeatus; maturity; fish Gyrodactylus; transmission; Monogenea; Gasterosteus aculeatus; maturity; fish
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary materials

  • Supplementary File 1:

    ZIP-Document (ZIP, 50928 KB)

  • Externally hosted supplementary file 1
    Link: http://-
    Description: Video 1and 2: Video footage showing the movement of a detached gyrodactylid from bottom (white circle) moving upwards and attaching to the ventral zone of the to 3-spined stickleback host (green circle).
  • Externally hosted supplementary file 2
    Link: http://-
    Description: Video 3 and 4: Video footage showing the movement of a detached gyrodactylid from bottom (white arrow) moving upwards (green arrow) to 3-spined stickleback using turbulence generated by the fin’s fish as a hydrodynamic force assisting upwards transmission. During the video a clear observation of several vortexes (arrow) produced by the pectoral fin fish motion
  • Externally hosted supplementary file 3
    Link: http://-
    Description: Video 3 and 4: Video footage showing the movement of a detached gyrodactylid from bottom (white arrow) moving upwards (green arrow) to 3-spined stickleback using turbulence generated by the fin’s fish as a hydrodynamic force assisting upwards transmission. During the video a clear observation of several vortexes (arrow) produced by the pectoral fin fish motion
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Grano-Maldonado, M.I.; Moreno-Navas, J.; Rodriguez-Santiago, M.A. Transmission Strategies Used by Gyrodactylus gasterostei (Monogenea) on Its Host, the Three-Spined Stickleback Gasterosteus aculeatus. Fishes 2018, 3, 20.

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