The life history of the amphipods Niphargus likanus Karaman, 1952 (Amphipoda, Niphargidae) and Synurella ambulans (Müller, 1846) (Amphipoda, Crangonyctidae) in springs near Gojačka Dobra River

Škalec, Sanja (2012) The life history of the amphipods Niphargus likanus Karaman, 1952 (Amphipoda, Niphargidae) and Synurella ambulans (Müller, 1846) (Amphipoda, Crangonyctidae) in springs near Gojačka Dobra River. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

The reproductive traits of the species Niphargus likanus and Synurella ambulans were examined downstream from the HPP Lešće on permanent spring Gorinci and periodical spring Skukani near Gojačka Dobra River. Samples were collected once a month in the period from February 2008 to May 2009. The primary goal was to establish the ecology and reproductive biology of the species Niphargus likanus and Synurella ambulans. Influence of abiotic factors on appearance of ovigerous females was the main focus of the research. The highest population density of the species was recorded in the springs with the water temperature below 17,7 °C. The ovigerous females were recorded in both springs for the species S. ambulans and only in Skukani spring for species N. likanus with high density during the winter (December, January, February) and spring (May). Amplexus and intersex individuals of N. likanus and S. ambulans were not found out in our study.

Item Type: Thesis (Diploma thesis)
Keywords: Amphipoda , lifehistory , population density , sex ratio , ovigerous females , springs , Dobra River
Supervisor: Gottstein, Sanja
Date: 2012
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Grozdana Sirotic
Date Deposited: 06 Jun 2014 07:58
Last Modified: 06 Jun 2014 07:58
URI: http://digre.pmf.unizg.hr/id/eprint/2279

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