AN INVESTIGATION ON ABUNDANCE AND DISTRIBUTION OF MNEMIOPSIS LEIDYI IN GUILAN WATERS, SOUTHWEST CASPIAN SEABAGHERI S.

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BAGHERI S.

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Journal: Iranian Scientific Fisheries Journal Year:2006 | Volume:14 | Issue:4 Page(s): 1-16

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Title

AN INVESTIGATION ON ABUNDANCE AND DISTRIBUTION OF MNEMIOPSIS LEIDYI IN GUILAN WATERS, SOUTHWEST CASPIAN SEABAGHERI S.

Author(s)

BAGHERI S. | Issue Writer Certificate

Keywords

MNEMIOPSIS LEIDYIQ3

DISTRIBUTIONQ4

GUILAN PROVINCEQ4

CASPIAN SEAQ3

IRANQ3

Abstract

The alien ctenophore MNEMIOPSIS LEIDYI which was transported from the Black Sea into the CASPIAN SEA by the end 1990s has since affected this new ecosystem. We studied the spatial and temporal DISTRIBUTION of the ctenophore from July 2001 to July 2002 in three transects located in Lisar, Bandar Anzali and Sefidroud, in GUILAN PROVINCE. Four stations were established in each transect at a 5, 10, 20 and 50 meter bottom depth contours.Maximum observed biomass of the organism was 221.3±91g/m2 in October 2001 and the minimum was 8.3±3.8g/m2 in December 2001. The highest biomass of the organism was detected in the upper 0–20m water layer in areas 50 meters deep achieving 145.36± 67.33g/m2. The lowest biomass was in the 20 – 50 layers in areas 50 meters deep amounting to 1.9±0.95g/m2. Small specimens less than 10 mm comprised about 97% of the sampled population and the maximum length measured at 51–55mm. The largest average biomass was 112.3±48g/m2 detected in Lisar and the smallest biomass in the range 67.17±46.8g/m2 was seen in Anzali region. It was concluded that temperature, depth, salinity and food availability affected the DISTRIBUTION of MNEMIOPSIS LEIDYI in the sampled areas. It is also expected that the high biomass of the organism detected in the region may have significant effects on pelagic ecosystems of the CASPIAN SEA.

Cites

ABUNDANCE AND DISTRIBUTION OF THE CASPIAN SEA CTENOPHORE (MNEMIOPSIS LEIDYI)

References

THE FIRST REPORT OF CTENOPHORA IN THE CASPIAN SEA

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APA: Copy

BAGHERI, S.. (2006). AN INVESTIGATION ON ABUNDANCE AND DISTRIBUTION OF MNEMIOPSIS LEIDYI IN GUILAN WATERS, SOUTHWEST CASPIAN SEABAGHERI S.. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 14(4), 1-16. SID. https://sid.ir/paper/4820/en

Vancouver: Copy

BAGHERI S.. AN INVESTIGATION ON ABUNDANCE AND DISTRIBUTION OF MNEMIOPSIS LEIDYI IN GUILAN WATERS, SOUTHWEST CASPIAN SEABAGHERI S.. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2006;14(4):1-16. Available from: https://sid.ir/paper/4820/en

IEEE: Copy

S. BAGHERI, “AN INVESTIGATION ON ABUNDANCE AND DISTRIBUTION OF MNEMIOPSIS LEIDYI IN GUILAN WATERS, SOUTHWEST CASPIAN SEABAGHERI S.,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 14, no. 4, pp. 1–16, 2006, [Online]. Available: https://sid.ir/paper/4820/en

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