Results 141 to 150 of about 1,157 (169)

Heart ultrastructure in Lepidurus arcticus pallas (Crustacea, Branchiopoda, Notostraca)

Cell and Tissue Research, 1980
The heart of Lepidurus arcticus consists of an epicardium and a single layer of strongly polarized myocardial cells, 10-50 micron thick, with the myofibrillar part facing the epicardium. The Z-bands are diffuse and some Z-material forms attachment plaques. Relaxed sarcomeres show a hexagonal arrangement of thick filaments and 6 thin filaments in orbit,
A, Tjønneland, B, Midttun, S, Okland, H O, Liebich   +3 more
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Sister species within the Triops cancriformis lineage (Crustacea, Notostraca)

Zoologica Scripta, 2006
We investigated the phylogenetic relationships among the three presently recognized subspecies of the tadpole shrimp, Triops cancriformis, using mitochondrial 16S and 12S rDNA sequences. Our results indicate that the taxon is divided into two distinct lineages. One lineage is formed of T. c. cancriformis populations and samples from northern Spain that
Korn, M, MARRONE, Federico, Perez Bote, JL, Machado, M, Cristo, M, Da Fonseca, LC, Hundsdoerfer, A.   +6 more
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Molecular taxonomy and phylogeny of ItalianLepidurustaxa (Branchiopoda: Notostraca)

Italian Journal of Zoology, 2009
Notostraca taxonomy is controversial, mainly owing to the high intraspecific variability of morphological characters; other complexity factors are represented by the consistent rate of reproductive variation. We undertook the molecular analyses of Italian Lepidurus taxa through the characterization of 12S, 16S and COI mitochondrial genes in new L. apus
MANTOVANI, BARBARA, CESARI, MICHELE, SCANABISSI, FRANCA   +2 more
openaire   +3 more sources

pH-related Hatching Success of Triops cancriformis (Crustacea: Branchiopoda: Notostraca)

Hydrobiologia, 2006
Six different pH ranges were tested for the hatching rate of Triops cancriformis cysts. Cumulative hatching numbers approach to approximately 50% of cysts. The highest hatching rates, co-occurring with the shortest hatching times, were recorded in the neutral range. No hatching took place at pH values 9 and above.
Schönbrunner, Iris Maria, Eder, Erich
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Abnormal Variation in the Notostraca

Systematic Zoology, 1958
MUCH recent work on the systematics of the Notostraca (Crustacea, Phyllopoda) has included comment on the great range of the variation in each systematic character in comparison with other animal groups, and the consequently unsatisfactory nature of a classification which must be based upon such characters; Linder (1952) has reviewed a number of these ...
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Branchiopods (Anostraca, Notostraca) from Protected Areas of Western Montana

Northwest Science, 2010
Fairy shrimp (order Anostraca) and tadpole shrimp (order Notostraca), members of the crustacean class Branchiopoda, are important components of many freshwater and saline wetlands (Dodson and Frey 2001, Brendonk et al. 2008). These animals are especially common in seasonal wetlands, where populations are maintained by banks of resting eggs that may ...
Blake R. Hossack, Robert L. Newell, D. Christopher Rogers   +2 more
openaire   +1 more source

Natural growth and reproduction in Triops granarius (Lucas) (Crustacea: Notostraca)

Hydrobiologia, 1991
Field sampling during successive inundations was followed by laboratory studies on growth, egg production and hatching of Triops granarius from temporary pans in southern Africa.
M. T. Seaman, D. J. Kok, B. J. von Schlichting, A. J. Kruger   +3 more
openaire   +1 more source

Reproduction of the Notostraca

1956
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

The large branchiopods (Anostraca, Notostraca and Spinicaudata) of Numidia (Algeria)

Hydrobiologia, 2002
Between 1995 and 1999, we surveyed the large branchiopods (Crustacea, Branchiopoda) of Numidia, the coastal plain of northeastern Algeria. Samples from ca 100 sites yielded two species of Anostraca (Chirocephalus diaphanus, new to Numidia, and Tanymastix stagnalis), one notostracan (Lepidurus apus lubbocki) and one spinicaudatan (Cyzicus tetracerus ...
Boudjéma Samraoui, H.J. Dumont
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?????????????????????? ?? ???????????????? Lepidurus apus (Crustacea, Notostraca) ?? ?????????????????????? ????????????????????

2023
???????????????? ???????????? - L. apus L. ???????????????? ?????????????????????? ???????????????????? ????????????, ?????????? ??????????????????, ???????????????? ???????????????? (Decksbach, 1924; Longhurst, 1955; Khalaf, 1977; Loffler, 1978; Bi.irmeister, 1982) ?????????????? ???????????? ?? ?????????? ?????????? ????????????. ???? ????????????????
openaire   +1 more source