干旱区生态环境知识资源中心(Arid): Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids

Arid

DOI	10.6620/ZS.2021.60-53
	Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids
	Gusakov, Vladimir A.; Makhutova, Olesia N.; Gladyshev, Michail I.; V. Golovatyuk, Larisa; Zinchenko, Tatiana D.
通讯作者	Gusakov, VA (corresponding author), Inland Waters Russian Acad Sci, Papanin Inst Biol, 109, Borok 152742, Russia.
来源期刊	ZOOLOGICAL STUDIES
ISSN	1021-5506
EISSN	1810-522X
出版年	2021
卷号	60
英文摘要	Saline rivers are highly productive ecosystems in arid regions. The meiobenthic community (bottom meiofauna) and its dominant representatives are one of the least studied components of these aquatic ecosystems. Ostracods Cyprideis torosa and Heterocypris salina are major consumers among the species of bottom meiofauna in saline rivers flowing into the hyperhaline Lake Elton (Volgograd Region, Russia). We estimated the abundance, biomass and production of C. torosa, the dominant species at the mouth of the polyhaline Chernavka River (average salinity is similar to 30 g l(-1)), and H. salina, the dominant species at the mouth of the mesohaline Bolshaya Samoroda River (similar to 13 g l(-1)), in spring (May) and summer (August). Additionally, we studied the composition and content of fatty acids of the ostracods and their potential food sources (bottom sediments with bacterial-algal mats). We found that the abundance and biomass (wet weight with shells) of C. torosa in the Chernavka River and H. salina in the Bolshaya Samoroda River reached 3.5 x 10(6) ind. m(-2) and 117 g m(-2), and 1.1 x 10(5) ind. m(-2) and 12 g m(-2), respectively. The first species formed on average about 85% of the total abundance and 96% of the total biomass of the meiobenthos, and the second one, about 13% and 31%, respectively. The daily production of C. torosa and H. salina can reach 249 and 36 mg m(-2) ash-free dry weight, respectively. The results indicate that these species may play an important role in the total flow of matter and energy in the studied habitats. Based on the fatty acid (FA) composition of the ostracods and their food sources, it was found that C. torosa mainly consumed diatoms, while H. salina preferred bacteria, cyanobacteria, and green algae. Differences between the species were greater than differences between the bottom sediments from the rivers. It may mean that the ostracods selectively consumed different food items that may be related to the different nutrient requirements of the species. Seasonal changes in the FA compositions of the ostracods were higher than in their food sources (bottom sediments), which also indicates selective feeding of the species.
英文关键词	Saline rivers Ostracods Diet Fatty acid markers
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000706545700001
WOS关键词	JONES 1850 CRUSTACEA ; MACROZOOBENTHIC COMMUNITIES ; INVERTEBRATES ; MEIOFAUNA ; MATTER ; DIVERSITY ; STREAMS ; GROWTH ; DIET
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364895
作者单位	[Gusakov, Vladimir A.] Inland Waters Russian Acad Sci, Papanin Inst Biol, 109, Borok 152742, Russia; [Makhutova, Olesia N.; Gladyshev, Michail I.] Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia; [Makhutova, Olesia N.; Gladyshev, Michail I.] Siberian Fed Univ, Svobodny av. 79, Krasnoyarsk 660041, Russia; [V. Golovatyuk, Larisa; Zinchenko, Tatiana D.] Samara Fed Res Sci Ctr RAS, Inst Ecol Volga River Basin RAS, Komzina str. 10, Tolyatti 445003, Russia
推荐引用方式 GB/T 7714	Gusakov, Vladimir A.,Makhutova, Olesia N.,Gladyshev, Michail I.,et al. Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids[J],2021,60.
APA	Gusakov, Vladimir A.,Makhutova, Olesia N.,Gladyshev, Michail I.,V. Golovatyuk, Larisa,&Zinchenko, Tatiana D..(2021).Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids.ZOOLOGICAL STUDIES,60.
MLA	Gusakov, Vladimir A.,et al."Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids".ZOOLOGICAL STUDIES 60(2021).