Study of zooplankton density in pre-monsoon and post-monsoon of Chabahar bay

سال انتشار: 1397
محل انتشار: بیستمین کنگره ملی و هشتمین کنگره بین‌المللی زیست‌شناسی ایران
کد COI اختصاصی: BIOCONF20_113
زبان مقاله: انگلیسی
تعداد مشاهده: 536

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نویسندگان

Mehran Loghmani Devin

Marine Biology Department, Marine Science Faculty, Chabahar Maritime University

Gilan Attaran Fariman

Marine Biology Department, Marine Science Faculty, Chabahar Maritime University

Fatemeh Zabihi

Marine Biology Department, Marine Science Faculty, Chabahar Maritime University

چکیده

The Chabahar Bay is a semi-enclosed Bay in the north of the Makoren Sea, which is always under the influence of the southwest of Munson during the summer. In the bays, zooplankton are a very important group of animals and the basis of the food chain and constitute intermediate stages in the pelagic food pyramid. The present study was carried out at three stations (water desalination, tis, lenjsazi) in Chabahar Bay during the pre-Monson (June) and Summer Post-Monsoon (November) in 2017 to study the effect of this phenomenon on zooplankton density. Sampling with 100-micron plankton was carried out in a horizontal stretch. According to the results, the total zooplankton density in the pre-monsoon was 1335.11±425.16 and after the monsoon, 1319.71 ± 49.18 ± 13.21 ind m-3. T-test showed a significant difference between two periods (p< 0.05). Comparison results between stations showed that in pre- Monsoon, the highest density at Tisa station was obtained with 1188.51 ± 350 ind m- and in post-Manson the same station with 1365 587 1301 ind m-3. One-way ANOVA and Tukey s showed a significant difference in both periods and among all stations (p < 0.05). The results show the effect of the summer monsoon in Chabahar Bay, which decreases the density of zooplankton in postmonsoon. One of the causes of this decrease (based on previous studies) can be due to a significant decrease in chlorophyll concentration in the bay.

کلیدواژه ها

Makoran Sea, Chabahar Bay, Zooplankton, Density

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