The first record of Northern pike Esox lucius, Linnaeus, 1758 in Zrebar Lake, Marivan, Kurdistan, Iran: morphology, feeding habit, reproductive biology, and assessment of invasive threats

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MOHAMMADI H.; GHADERI E.; maolodi f.; BAHRAMI KAMANGAR B.

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Journal: JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH Year:2020 | Volume:7 | Issue:4 Page(s): 133-142

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Title

The first record of Northern pike Esox lucius, Linnaeus, 1758 in Zrebar Lake, Marivan, Kurdistan, Iran: morphology, feeding habit, reproductive biology, and assessment of invasive threats

Author(s)

MOHAMMADI H. | GHADERI E. | maolodi f. | BAHRAMI KAMANGAR B. | Issue Writer Certificate

Keywords

E.lucius

Zrebar Lake

Invasive species

Abstract

Zrebar Lake is one of the most important natural freshwater lakes in Kurdistan Province in the west of Iran. Since December 2019, there have been reports on an unusual fish species sighting in the Zrebar Lake. So, efforts were made to set traps, capture, and identify the species as Northern pike (E. Lucius). The preliminary results showed that the captured fish (E. lucius) was recorded with an average body weight of 630. 3± 182. 1 g, a total length of 418. 4± 41. 3 mm, and at the age of 2. 7± 0. 5 years. The mean number of eggs per gram in females was 171. 9± 26. 3 and the stage of female sexual maturation was determined to be 5. 13± 0. 35 years (the lowest stage at age of 5 and the most stage at age of 6 years) and the stage of male sexual maturation was 2. 5± 0. 57 years (the lowest stage at age of 2 and the most stage at age of 3 years). Based on the RLG index (0. 98± 0. 12), the Northern pike was categorized as a carnivorous species characterized by their type of prey: Carassius auratus (Carucian Carp), Squalius cephalus (Common Chub), Alburnus sp. (Bleaks), and frogs (adult) in the gastrointestinal tract. Based on the feeding habit study, the Northern pike can be classified as an invasive fish species by their directly or indirectly impacts on the population of a variety of aquatic species in particular fish and amphibians. The first observation of the reproductive organs of both sexes showed that they are considered mature sexually. Suggesting that the accidental introduction of Northern pike can cause serious threats to the population of native fish species and this freshwater ecosystem.

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APA: Copy

MOHAMMADI, H., GHADERI, E., maolodi, f., & BAHRAMI KAMANGAR, B.. (2020). The first record of Northern pike Esox lucius, Linnaeus, 1758 in Zrebar Lake, Marivan, Kurdistan, Iran: morphology, feeding habit, reproductive biology, and assessment of invasive threats. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, 7(4 ), 133-142. SID. https://sid.ir/paper/641765/en

Vancouver: Copy

MOHAMMADI H., GHADERI E., maolodi f., BAHRAMI KAMANGAR B.. The first record of Northern pike Esox lucius, Linnaeus, 1758 in Zrebar Lake, Marivan, Kurdistan, Iran: morphology, feeding habit, reproductive biology, and assessment of invasive threats. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH[Internet]. 2020;7(4 ):133-142. Available from: https://sid.ir/paper/641765/en

IEEE: Copy

H. MOHAMMADI, E. GHADERI, f. maolodi, and B. BAHRAMI KAMANGAR, “The first record of Northern pike Esox lucius, Linnaeus, 1758 in Zrebar Lake, Marivan, Kurdistan, Iran: morphology, feeding habit, reproductive biology, and assessment of invasive threats,” JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, vol. 7, no. 4 , pp. 133–142, 2020, [Online]. Available: https://sid.ir/paper/641765/en

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