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SM ISO690:2012 POIRAS, Larisa. Nematodes of the sediment/soil interface in the lower Prut. In: Oltenia - studii si comunicari stiintele naturii, 2010, nr. 1(26), pp. 73-80. ISSN 1454-6914. |
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Oltenia - studii si comunicari stiintele naturii | ||||||
Numărul 1(26) / 2010 / ISSN 1454-6914 | ||||||
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CZU: 595.1:591.1 | ||||||
Pag. 73-80 | ||||||
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Species and trophic composition of nematode communities, their abundance and spatial distribution of the sediment/soil interface in the Lower Prut (near village Chislita-Prut) were studied. The nematode abundance strongly varied 39.6 – 570.0 ind. thousands m-2. Fifty one species belonging to 42 genera, 27 families and 8 orders were identified. Families Dorylaimidae, Cephalobidae, Tylenchidae and Telotylenchidae are represented by more species and occupied almost the entire sampling area. Higher species diversity of nematodes was noted in the terrestrial than in aquatic samples. A third of the species found in aquatic area belong to taxa, which apparently developed and radiated under terrestrial conditions. Three species were the most frequent and abundant in deep water – Brevitobrilus stefanskii, Panagrolaimus hygrophilus and Bursilla monhystera. The species Tripyla glomerans, Diplogaster rivalis and Chronogaster typicus are the typical species for freshwater conditions, however their populations were not numerous in deep water. The species from the families Discolaimidae, Leptonchidae, Diploscapteridae, Anguinidae, Hoplolaimoidae, Pratylenchidae, Paratylenchidae were found only in the terrestrial area. Bacterial feeders were the most numerous in the sampling area. Ecological indexes such as species diversity (Shannon-Weaver), species richness (Margalef) and Maturity index (Bongers) were high in the case of nematode communities from the terrestrial habitats. |
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Cuvinte-cheie freshwater and terrestrial nematodes, species and trophic composition, abundance, spatial distribution, biodiversity indices, the Lower Prut, nematodele terestre şi acvatice, specii şi compoziţia trofică, abundenţă, distribuţia spaţial, indicii biodiversităţii, Prutul Inferior |
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<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'> <creators> <creator> <creatorName>Poiras, L.N.</creatorName> <affiliation>Institutul de Zoologie al AŞM, Moldova, Republica</affiliation> </creator> </creators> <titles> <title xml:lang='en'>Nematodes of the sediment/soil interface in the lower Prut</title> </titles> <publisher>Instrumentul Bibliometric National</publisher> <publicationYear>2010</publicationYear> <relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1454-6914</relatedIdentifier> <subjects> <subject>freshwater and terrestrial nematodes</subject> <subject>species and trophic composition</subject> <subject>abundance</subject> <subject>spatial distribution</subject> <subject>biodiversity indices</subject> <subject>the Lower Prut</subject> <subject>nematodele terestre şi acvatice</subject> <subject>specii şi compoziţia trofică</subject> <subject>abundenţă</subject> <subject>distribuţia spaţial</subject> <subject>indicii biodiversităţii</subject> <subject>Prutul Inferior</subject> <subject schemeURI='http://udcdata.info/' subjectScheme='UDC'>595.1:591.1</subject> </subjects> <dates> <date dateType='Issued'>2010-07-01</date> </dates> <resourceType resourceTypeGeneral='Text'>Journal article</resourceType> <descriptions> <description xml:lang='en' descriptionType='Abstract'><p>Species and trophic composition of nematode communities, their abundance and spatial distribution of the sediment/soil interface in the Lower Prut (near village Chislita-Prut) were studied. The nematode abundance strongly varied 39.6 – 570.0 ind. thousands m-2. Fifty one species belonging to 42 genera, 27 families and 8 orders were identified. Families Dorylaimidae, Cephalobidae, Tylenchidae and Telotylenchidae are represented by more species and occupied almost the entire sampling area. Higher species diversity of nematodes was noted in the terrestrial than in aquatic samples. A third of the species found in aquatic area belong to taxa, which apparently developed and radiated under terrestrial conditions. Three species were the most frequent and abundant in deep water – Brevitobrilus stefanskii, Panagrolaimus hygrophilus and Bursilla monhystera. The species Tripyla glomerans, Diplogaster rivalis and Chronogaster typicus are the typical species for freshwater conditions, however their populations were not numerous in deep water. The species from the families Discolaimidae, Leptonchidae, Diploscapteridae, Anguinidae, Hoplolaimoidae, Pratylenchidae, Paratylenchidae were found only in the terrestrial area. Bacterial feeders were the most numerous in the sampling area. Ecological indexes such as species diversity (Shannon-Weaver), species richness (Margalef) and Maturity index (Bongers) were high in the case of nematode communities from the terrestrial habitats.</p></description> <description xml:lang='ro' descriptionType='Abstract'><p>Au fost studiate speciile şi compoziţia trofică a comunităţilor de nematode, abundenţa şi distribuţia spaţială a interferenţei sediment/sol, din Prutul Inferior (Chişliţa-Prut). Abundenţa nematodelor variază puternic, de la 39,6 până la 579 mii ind. m-2. Au fost identificate cincizeci şi una specii aparţinând la 42 de genuri, 27 familii şi 8 ordine. Familiile Dorylaimidae, Cephalobidae, Tylenchidae şi Telotylenchidae sunt reprezentate printr-un număr mare de specii şi sunt întâlnite practic pe întreaga zonă studiată. Diversitatea cea mai înaltă a nematodelor a fost identificată pentru probele de sol. Cca. o treime din numărul total de specii de nematode detectate în zona acvatică fac parte din speciile ce se dezvoltă în mediul terestru. Cele mai frecvente şi abundente trei specii pentru probele acvatice au fost: Brevitobrilus stefanskii, Panagrolaimus hygrophilus şi Bursilla monhystera. Speciile Tripyla glomerans, Diplogaster rivalis şi Chronogaster typicus, ce sunt tipice pentru condiţiile mediului acvatic totuşi, nu sunt reprezentate printr-un număr sporit. Speciile ce aparţin familiilor Leptonchidae, Diploscapteridae, Anguinidae, Hoplolaimoidae, Pratylenchidae, Paratylenchidae au fost identificate doar în probele terestre. Bacteriofagii reprezintă grupa cea mai numeroasă pentru zona studiată. Indicii ecologici ca: diversitatea specifica (Shannon), „bogăţia de specii” (Margalef) şi indicele maturităţii (Bongers) au avut parametrii înalţi pentru habitatele terestre.</p></description> </descriptions> <formats> <format>application/pdf</format> </formats> </resource>