Iranian Journal of Fisheries Sciences
مجله علوم شیلاتی ایران
IJFS
Agriculture
http://jifro.ir
1
admin
1562-2916
10.18869/acadpub.ijfs
en
jalali
1396
4
1
gregorian
2017
7
1
16
3
online
1
fulltext
fa
Discriminating mesozooplankton communities in Bushehr marine coastal ecosystems- Persian Gulf
Coastal ecosystems of Bushehr are shallow environments subject to human impacts, including shrimp aquaculture and urban expansion activities. A spatial-temporal study was conducted in order to assess the actual ecological status of the creeks, estuary and marine sites on the basis of their taxonomic composition and density of mesozooplankton. Zooplankton species distribution and abundance data at 6 sampling sites during June 2015 - March 2016 revealed 24 taxa represented by 5 divergent groups. During the study period, high salinities (around 35-47) were recorded, characterizing all systems as a coastal-marine ecosystem, rather than true estuarine. The mesozooplankton assemblage was characterized by the dominant marine Copepod, <em>Labidocera </em>sp<em>., zoeas</em> of coastal/marine crab, <em><span style="color:black;">Ilyoplax</span> frater</em>, marine copepod <em>Acartia fossae </em>and a marine pelagic tunicate, <em>Oikopleura dioica</em>. Copepods were the main dominant group and <em>Labidocera </em>sp the most abundant species, with high abundances in winter, whereas high abundances of the <em><span style="color:black;">Ilyoplax </span>frater </em>were noticed in summer. <span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-attachment:initial;background-origin:initial;background-clip:initial;"><span style="color:black;">Based on SIMPER analyses, </span></span>highest dissimilarity was observed between Ramleh and Lashkary and discriminating taxa for all sites were <em>Labidocera </em>sp followed by <em><span style="color:black;">Ilyoplax </span>frater</em> contributing to more than 68% of the total average dissimilarities for all locations. The <span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-attachment:initial;background-origin:initial;background-clip:initial;"><span style="color:black;">multivariate</span></span> BIO–ENV procedure indicated that <em>Labidocera </em>sp. followed by <em>Acartia fossae </em>strongly correlated to the variability of depth, transparency and salinity. Finally the results showed that temporal and spatial variation in the mesozooplankton community is consistent with the dynamic character of the habitat characterized as a typical coastal marine system (with low average depths, transparency and high salinity).
Mesozooplankton, Creek, Estuary, Bushehr, Persian Gulf
970
983
http://jifro.ir/browse.php?a_code=A-10-2121-5&slc_lang=fa&sid=1
Z.
Mokhayer
100319475328460025230
100319475328460025230
Yes
R.
Mousavi Nadushan
mousavi.nadushan@gmail.com
100319475328460025231
100319475328460025231
No
M.
Rabbaniha
100319475328460025232
100319475328460025232
No
M.R.
Fatemi
100319475328460025233
100319475328460025233
No
Sh.
Jamili
100319475328460025234
100319475328460025234
No
S.E.
Safavi
100319475328460025235
100319475328460025235
No