伊谢克湖(Çivril-Denizli/土耳其)浮游动物分布和组成调查及营养状况评估

Meral Apaydın Yağcı, Rahmi Uysal, Abdulkadir Yağcı, V. Yeğen
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引用次数: 0

摘要

本研究在 2003-2005 年期间每月对位于土耳其内西安那托利亚地区的 Işıklankı 湖的浮游动物分布和组成情况进行考察。浮游动物样本用 Hydro-Bios 浮游生物网(55 微米)在湖面采集,并用甲醛(4%)固定。此外,还测量了表层水温、pH 值、溶解氧和电导率等生理参数。此外,还测定了频率指数(F %)和腕足动物/毛蟹(QB/T),以评估伊谢克湖的营养组成。共确定了 49 个物种。其中轮虫(55%)、栉水母(27%)和桡足目(18%)均有出现。最多的物种出现在 2004 年 5 月(21 种),最少的物种出现在 2003 年 10 月(5 种)。Asplanchna priodonta、Keratella cochlearis、Keratella tecta、Polyarthra dolichoptera、Synchaeta pectinata、Bosmina longirostris 和 Chydorus sphaericus 是湖中常见的物种。水温在 3.9-24.6 °C 之间变化;pH 值在 8.1-8.8 之间变化;电导率在 341 µS/cm-434 µS/cm 之间变化;溶解氧值在 5.8 mg/L-11.1 mg/L 之间变化。根据频率指数(F %),最主要的物种是 B. longirostris(74 %)、K. cochlearis(62 %)、A. priodonta(54 %)和 C. sphaericus(51 %)。该地区共有 20 个物种为首次报道。湖中新报告的物种有:轮虫 A. priodonta、Brachionus angularis、Brachionus calyciflorus、Colurella colurus、Keratella quadrata、Lecane clostrocerca、Lecane ludwigi、Lecane luna、Lecane lunaris、Lecane ohioensis、Lecane quadridentata、Lecane sp、Mytilina mucronata、Notholca acuminata、Notholca squamula、Trichotria tetractis、桡足类 Acroperus harpae、Daphnia cucullata 以及桡足类 Eucyclops macrurus 和 Megacyclops gigas。根据 Sládeček(1983 年)的指数,考虑到 Brachionus / Trichocerca(QB/T)比率,该湖呈现出中营养特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigations on the zooplankton distribution and composition of Işıklı Lake (Çivril-Denizli/Türkiye), with a trophic status assessment
In this study, the zooplankton distribution and composition of Işıklı Lake, located in the Inner West Anatolia region of Türkiye, were examined monthly between 2003-2005. Zooplankton samples were collected with Hydro-Bios plankton net (55 µm) at the surface and fixed in formaldehyde (4 %). Physiological parameters such as surface water temperature, pH, dissolved oxygen, and conductivity were also measured. Also, the frequency index (F %) and the Brachionus / Trichocerca (QB/T) were determined to assess the trophic composition of Lake Işıklı. A total of 49 species have been identified. Rotifera (55 %), Cladocera (27 %) and Copepoda (18%) were represented by the species. The maximum species was found in May 2004 (21 species), while the minimum was found in October 2003 (5 species). Asplanchna priodonta, Keratella cochlearis, Keratella tecta, Polyarthra dolichoptera, Synchaeta pectinata, Bosmina longirostris and Chydorus sphaericus are common species in the lake. The water temperature varied between 3.9-24.6 °C; pH ranged from 8.1 to 8.8; the electrical conductivity ranged from 341 µS/cm to 434 µS/cm; the dissolved oxygen values changed from 5.8 mg/L to 11.1 mg/L. According to the frequency index (F %), the most dominant species are B. longirostris (74 %), K. cochlearis (62 %), A. priodonta (54 %), and C. sphaericus (51 %). A total of 20 species are reported for the first time from the region. Newly reported species from the lake were: the rotifers, A. priodonta, Brachionus angularis, Brachionus calyciflorus, Colurella colurus, Keratella quadrata, Lecane clostrocerca, Lecane ludwigi, Lecane luna, Lecane lunaris, Lecane ohioensis, Lecane quadridentata, Lecane sp., Mytilina mucronata, Notholca acuminata, Notholca squamula, Trichotria tetractis, the cladocerans Acroperus harpae, Daphnia cucullata, and the copepods Eucyclops macrurus and Megacyclops gigas. Considering the Brachionus / Trichocerca (QB/T) ratio according to the Sládeček (1983) index, the lake showed mesotrophic features.
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