علوم زیستی دریا
shafa hoveizavy; ahmad savari; simin madiseh; babak doustshenas; hosein pasha
Volume 11, Issue 1 , November 2012, , Pages 1-15
Abstract
Presence of each pollution and changing in the marine ecosystem have sever impacts on Biotic factors and economic ecological potential in this valuable area. Thus, ecological health monitoring to evaluation of habitat health are important.In this study, AMBI(Azti Marine Biology Index) was used to evaluation ...
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Presence of each pollution and changing in the marine ecosystem have sever impacts on Biotic factors and economic ecological potential in this valuable area. Thus, ecological health monitoring to evaluation of habitat health are important.In this study, AMBI(Azti Marine Biology Index) was used to evaluation health of Bahrakan coastal area as a main fisheries and petroleum extraction ground. The results showed studied area classified in good ecological status. The dominance species was from Ophiuridae family with ecological group II. based on richness and diversity index value, studied area are classified in bad ecological status. This results discordantly can caused due to differences in influences variable. Low rate of water exchange, high degree of temperature and salinity maybe were lead to decreasing in macrobenthic richness and diversity index values but AMBI result that get from ratio between sensitive and resistant species, shows good ecological status.
eelia eatemadi; ahmad savari; Tooraj Valinassab; Nasrin Sakhaei
Volume 11, Issue 1 , November 2012, , Pages 16-30
Abstract
This study was carried out in three inter tidal zones in the Iranian coast of Gulf of Oman, in 2010 to identify the species belonging to Family Ocypodidae and to investigate effect of monsoon on ecology of crabs. Two species of genus Uca (U. sindensis and U. iranica) from Jask and Khour-Khalasi study ...
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This study was carried out in three inter tidal zones in the Iranian coast of Gulf of Oman, in 2010 to identify the species belonging to Family Ocypodidae and to investigate effect of monsoon on ecology of crabs. Two species of genus Uca (U. sindensis and U. iranica) from Jask and Khour-Khalasi study area and one species of genus Ocypode (O. rotundata) from Vanak beach were identified. The results were used to verify previous reports on species identification. Monsoon was found to affect distribution and frequency of these crabs. The maximum and minimum relative density were observed in pre-monsoon (May, 9.33 individual/m2) and monsoon (September, 6.38 individual/m2), respectively. Dense distribution of Uca was found in the muddy beaches of Khour-Khalasi and the genus Ocipode in the sandy beaches of Vanak area.