Chapter 29
Effect of Water Different Salinity
on the Morphology of Kudoa nova
(Myxosporea: Kudoidae) Spores:
Experimental Study
Violetta Yurakhno
Abstract It has been shown for the first time in experiment, that placing of marine
species myxosporean Kudoa nova spores into fresh water influences negatively
their construction and preservation in the case, when spores are in cysts, isolated
from muscles and put to refrigerator. The percent of anomalous spores in these cysts
at the 34-th day of experiment reached 87%, deformation or destruction of 48% of
spores was observed already at third day. By 20-th day of experiment majority of
spores and polar capsules darkened, polar filaments in such spores did not shoot
being placed to 8% solution of KOH. If cysts of K. nova were placed into sea water
and kept in the refrigerator percentage of anomalous spores made only 2–6%. But if
the spores of the given myxosporean species were contained in muscle tissue and
kept in waters of different salinity under natural weather conditions, then in the
fresh water abnormal spores maximal share was of 17% and in the sea water – 20%.
Keywords Kudoa nova • Muscles • Fish • Spores construction and preservation •
Experiment • Different salinity of water
29.1 Introduction
When we studied the Black Sea and the Sea of Azov fish myxosporeans we paid
attention to the fact that common in the sea waters species Kudoa nova Naidenova,
in Naidenova, Schulman, Donets, 1975 (Myxosporea: Kudoidae) either was not met
at all or was represented singularly in material from the regions undergoing strong
desalination. For example according to N. N. Naidenova (1974) and to our expedition researches in summer 1997–1998 this parasite species was absent in gobies,
caught in the Taganrog gulf of the Sea of Azov, to which Don river inflows. In the
V. Yurakhno (*)
A. O. Kovalevsky Institute of Marine Biological Research RAS, Nakhimov Ave, 2, Sevastopol
299011, Russia
e-mail: viola_taurica@mail.ru
© Springer International Publishing AG 2018
C.W. Finkl, C. Makowski (eds.), Diversity in Coastal Marine Sciences, Coastal
Research Library 23, DOI 10.1007/978-3-319-57577-3_29
495
Effect of Water Different Salinity
on the Morphology of Kudoa nova
(Myxosporea: Kudoidae) Spores:
Experimental Study
Violetta Yurakhno
Abstract It has been shown for the first time in experiment, that placing of marine
species myxosporean Kudoa nova spores into fresh water influences negatively
their construction and preservation in the case, when spores are in cysts, isolated
from muscles and put to refrigerator. The percent of anomalous spores in these cysts
at the 34-th day of experiment reached 87%, deformation or destruction of 48% of
spores was observed already at third day. By 20-th day of experiment majority of
spores and polar capsules darkened, polar filaments in such spores did not shoot
being placed to 8% solution of KOH. If cysts of K. nova were placed into sea water
and kept in the refrigerator percentage of anomalous spores made only 2–6%. But if
the spores of the given myxosporean species were contained in muscle tissue and
kept in waters of different salinity under natural weather conditions, then in the
fresh water abnormal spores maximal share was of 17% and in the sea water – 20%.
Keywords Kudoa nova • Muscles • Fish • Spores construction and preservation •
Experiment • Different salinity of water
29.1 Introduction
When we studied the Black Sea and the Sea of Azov fish myxosporeans we paid
attention to the fact that common in the sea waters species Kudoa nova Naidenova,
in Naidenova, Schulman, Donets, 1975 (Myxosporea: Kudoidae) either was not met
at all or was represented singularly in material from the regions undergoing strong
desalination. For example according to N. N. Naidenova (1974) and to our expedition researches in summer 1997–1998 this parasite species was absent in gobies,
caught in the Taganrog gulf of the Sea of Azov, to which Don river inflows. In the
V. Yurakhno (*)
A. O. Kovalevsky Institute of Marine Biological Research RAS, Nakhimov Ave, 2, Sevastopol
299011, Russia
e-mail: viola_taurica@mail.ru
© Springer International Publishing AG 2018
C.W. Finkl, C. Makowski (eds.), Diversity in Coastal Marine Sciences, Coastal
Research Library 23, DOI 10.1007/978-3-319-57577-3_29
495