Publication Date:
2021-05-19
Description:
Bacterial flora and parasitic fauna of M. leidyi an exotic invader jelly fish to Caspian sea ecosystem and B. ovata
to Black sea an alternative biological control agent was studied. During summer 1382 to spring 1383, using
routine Bacteriological work. 72 sample of sea water Caspian sea obtained from depth 20 and 50 meters, 36
sample of M. leidyi from depth 20 meters , 10 sample of B. ovata and 3 sample of sea water (Black sea ) were
collected and according to Bacteriological was studied. 216 sample of M. leidyi from depth 10 to 50 meters of
Caspian sea and 47 sample of B. ovata from Black and Marmarreh sea (turkey) were collected and was studied. In this study no parasite from was identified in M. leidyi (Caspian sea) but 64 percentage and 73 percentage of B.
ovata (Marmarreh and Black sea respectively) contaminated to Trichodina ctenophore at varians concentration
B. ovata of Black sea (130 min 1050 max) and B. ovata Marmarre sea (420 min 2100 max). while B. ovata
kept at high salinity of 21 ppt was more contaminated with this pretrichial protozoan(Trichodina) than in low
salinity (12/5 ppt). in comparision of bacterial flore in two cetenophore (M. leidyi and B. ovata) was observed
that some of bacteria such as micrococcus sp, Aeromonas sp. Bacillus coagulans in both ctenophore and some
other bacteria such as Agromobacterium and chromobacterium only observed in B. ovata but other researcher
have reported fram Caspin sea and some of bacteria to specific Shewanella , Vibrio harveiy and bacillus linens
was observed in B. ovata . of course specific bacteria can not transfer to Caspian sea (different of salinity black
sea (2/1%) to Caspian sea (1/25 %)). Therefore if B. ovata to introduce to south Caspian sea for biological
control population M. leidyi. it is necessary at first some of viral pathogen in aquatic animal (fish) such as VNN,
IPN,IHN,VHS,SVC was studied and then with confidence 95% non infestation B. ovata to viruses and pass from
bath anti parasite and anti bacterial must be introduce to south Caspian sea.
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Parasite
;
Bacteria
;
Beroe ovata
;
Mnemiopsis leidyi
;
Agromobacterium
;
Chromobacterium
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
55pp.
