Influence of temperature on the hatching of eggs of Diplectanum aequans,a parasite of sea bass |
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Authors: | Stefano Cecchini |
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Affiliation: | (1) Dipartimento di Patologia Animale, Profilassi ed Igiene degli Alimenti. Facoltà di Medicina Veterinaria, Università di Pisa, Viale delle Plagge 2, 56127 Pisa, Italy |
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Abstract: | This study deals with the influence of temperature on the hatching of eggs of Diplectanum aequans, a branchial ectoparasite of sea bass (Dicentrarchus labrax). At temperatures of 20 °C, 25 C and 30 °C hatching takes place within a few days of laying, whereas at 15 C and 10 C it occurs respectively between the 7th and the 12th day and between the 11th and the 19th day. No hatching has been observed at 5 C. Development is not completely inhibited at 5 C as the eggs can, at least partially, go on maturing and will subsequently hatch as soon as higher temperatures are encountered. |
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Keywords: | Diplectanum aequans (Monogenea, Diplectanidae) Hatching of eggs Temperature Sea bass (Dicentrarchus labrax) |
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