Distribution and diversity of Meiobenthos in Southern Caspian Sea (Mazandaran-Iran)‎

Other Title(s)

توزيع و تنوع Meiobenthos في جنوب بحر قزوين (مازندران- إيران)‎

Joint Authors

al-Maliki, Tariq Hattab Yasin
Dirghami, Maryam
Fatmi, Muhammad Rida
Mulla Yusuf, Masumah Suhrabi
Haqiqi, Fatimah Nazar

Source

Mesopotamian Journal of Marine Science

Issue

Vol. 34, Issue 1 (30 Jun. 2019), pp.43-62, 20 p.

Publisher

University of Basrah Marine Science Center

Publication Date

2019-06-30

Country of Publication

Iraq

No. of Pages

20

Main Subjects

Earth Sciences, Water and Environment
Naval Science

Topics

Abstract AR

درس التوزيع و التنوع للأحياء القاعية Meibenthos في رواسب جنوب بحر قزوين و حددت علاقتها بالعوامل البيئية.

جمعت عينات الرواسب فصليا من 12 محطة (تتراوح أعماقها ما بين 5 و 10 و 20 و 50 م) خلال عام 2012.

قيست درجة الحرارة و الملوحة و الأوكسجين الذائب و الأس الهيدروجيني أثناء جمع العينات و بجهاز CTD (التوصيلية، درجة الحرارة و العمق)، فضلا عن قياس حجم الدقائق و المادة العضوية الكلية و كربونات الكالسيوم.

تراوحت درجة حرارة الماء (9.

52-23.

93°م)، الأوكسجين المذاب (7.

71-10.

53 ملغم / لتر)، الملوحة (10.

57 ± 0.

07 - 10.

75 ± 0.

04 جزء بالألف)، الأس الهيدروجيني (7.

44 ± 0.

29-7.

41 ± 0.

22)، التوصيلية (17.

97 ± 0.

12- 18.

30 ± 0.

04 μs / cm2)، المواد الذائبة الكلية (8.

92 ± 0.

04 - 9.

14 ± 0.

02 ملغم / لتر)، المواد العضوية الكلية (5.

83 ± 1.

43 - 6.

25 ± 0.

97 %) و كربونات الكالسيوم (2.

36 ± 0.

36 - 1.

68 ± 0.

19 %).

تم التعرف على 40 نوعا ينتمون إلى 29 جنسا من 25 عائلة من المجموعات الحيوانية الأربعة: Foraminifera و Crustacea و Worms و Mollusca، وقد شوهد Ammonia beccariicaspica من الأنواع الشائعة في جميع المحطات.

اعتبر العمق عاملا مهما في توزيعMeibenthos.

قيس الحد الأعلى و الأدنى لمؤشر شانون بعمق (5 و 50 متر)، فقد تراوح بين (0.

93 و 0.

43).

كما أظهر مؤشر شانون و بيوليو بأن هذه المنطقة ليست ثابتة.

Abstract EN

Biodiversity and distribution of benthic Meiobenthos in the sediments of the Southern Caspian Sea were studied in order to introduce and determine their relationship with the environmental factors.

From 12 stations (ranging in depths from 5, 10, 20 and 50 meters), sediment samples were gathered for four seasons (2012).

Temperature, salinity, dissolved Oxygen and pH were measured during sampling with CTD (conductivity, temperature and Depth).

Percentage grain size and total organic matter and calcium carbonate were measured.

The average water temperature ranged from 9.

52 to 23.

93 ͦC, dissolved Oxygen from 7.

71 to 10.

53 mg/L, salinity from 10.

57±0.

07 to 10.

75±0.

04 ppt.

, pH from 7.

44±0.

29 to 7.

41±0.

22, EC from 17.

97±0.

12 to 18.

30±0.

04 μs / cm2, TDS from 8.

92±0.

04 to 9.

14±0.

02 mg/L, total organic matter from 5.

83 ± 1.

43 to 6.

25±0.

97% and calcium carbonate fluctuated from 2.

36±0.

36 to 1.

68 ± 0.

19%.

From the 4 groups of animals (Foraminifera, Crustacea, Worms and Mollusca), 40 species belonging to 29 genera of 25 families were identified Ammonia beccarii caspica, was the common species in all sampling stations.

Depth was an important factor in the distribution of meiobenthos.

Mean of maximum and minimum Shannon index were measured at depth of 5m and 50 m and were in the order of 0.

93 and 0.

43, respectively.

Account of Shannon and Peilou's index showed that this area is under pressure and is not steady.

American Psychological Association (APA)

Dirghami, Maryam& Fatmi, Muhammad Rida& al-Maliki, Tariq Hattab Yasin& Mulla Yusuf, Masumah Suhrabi& Haqiqi, Fatimah Nazar. 2019. Distribution and diversity of Meiobenthos in Southern Caspian Sea (Mazandaran-Iran). Mesopotamian Journal of Marine Science،Vol. 34, no. 1, pp.43-62.
https://search.emarefa.net/detail/BIM-973976

Modern Language Association (MLA)

al-Maliki, Tariq Hattab Yasin…[et al.]. Distribution and diversity of Meiobenthos in Southern Caspian Sea (Mazandaran-Iran). Mesopotamian Journal of Marine Science Vol. 34, no. 1 (2019), pp.43-62.
https://search.emarefa.net/detail/BIM-973976

American Medical Association (AMA)

Dirghami, Maryam& Fatmi, Muhammad Rida& al-Maliki, Tariq Hattab Yasin& Mulla Yusuf, Masumah Suhrabi& Haqiqi, Fatimah Nazar. Distribution and diversity of Meiobenthos in Southern Caspian Sea (Mazandaran-Iran). Mesopotamian Journal of Marine Science. 2019. Vol. 34, no. 1, pp.43-62.
https://search.emarefa.net/detail/BIM-973976

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 59-62

Record ID

BIM-973976