Results 171 to 180 of about 6,933 (225)
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2022
Abstract The cladocerans, currently thought to contain approximately 630 species, constitute the most speciose and anatomically diverse group within Branchiopoda. Unlike other branchiopods with gonopores located around the 12th thoracic somite, cladocerans are truly oligomerous, with greatly shortened bodies.
Frederick R. Schram, Stefan Koenemann
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Abstract The cladocerans, currently thought to contain approximately 630 species, constitute the most speciose and anatomically diverse group within Branchiopoda. Unlike other branchiopods with gonopores located around the 12th thoracic somite, cladocerans are truly oligomerous, with greatly shortened bodies.
Frederick R. Schram, Stefan Koenemann
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Ecology, 1982
In situ enclosure experiments were used to asses the importance of competition to the population dynamics of three cladocerans (Daphnia pulex, Moina affinis, and Ceriodaphnia sp.) in a small pond. Competitive effects were nonlinear functions of cladoceran density, and both intra and interspecific competition were important determinants of the dynamics ...
Daniel Wilkins Smith, Scott D. Cooper
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In situ enclosure experiments were used to asses the importance of competition to the population dynamics of three cladocerans (Daphnia pulex, Moina affinis, and Ceriodaphnia sp.) in a small pond. Competitive effects were nonlinear functions of cladoceran density, and both intra and interspecific competition were important determinants of the dynamics ...
Daniel Wilkins Smith, Scott D. Cooper
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2023
Summer temperature, thickness of winter frozen layer of water and presence or absence of macrophytes are suggested to be essential factors of copepods distribution over Subarctic water bodies. Southern woodland species (Limnosida frontosa, Diaphanosome brachyurum, Leptodora kinndti) scarcely occur in Subarctics, they are characteristic with low ...
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Summer temperature, thickness of winter frozen layer of water and presence or absence of macrophytes are suggested to be essential factors of copepods distribution over Subarctic water bodies. Southern woodland species (Limnosida frontosa, Diaphanosome brachyurum, Leptodora kinndti) scarcely occur in Subarctics, they are characteristic with low ...
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Hydrobiologia, 1971
The only species of Cladocera so far known from Rajasthan is Latona tiwari decribed by BISwAS (1964) . The present paper which deals with 17 species of Cladocera, is based on a few collections from different localities in Raj asthan during the period between 1962 and 1964.
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The only species of Cladocera so far known from Rajasthan is Latona tiwari decribed by BISwAS (1964) . The present paper which deals with 17 species of Cladocera, is based on a few collections from different localities in Raj asthan during the period between 1962 and 1964.
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2016
This chapter covers the dichotomous-pictorial key for genera and species identification of planktonic Cladocera reported from Europe. We attempted to use autapomorphic characters and, whenever possible, almost a single character to distinguish between similar species, in an easy pictorial way, avoiding long verbal descriptions equipped with scientific ...
Leszek A. Błędzki, Jan Igor Rybak
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This chapter covers the dichotomous-pictorial key for genera and species identification of planktonic Cladocera reported from Europe. We attempted to use autapomorphic characters and, whenever possible, almost a single character to distinguish between similar species, in an easy pictorial way, avoiding long verbal descriptions equipped with scientific ...
Leszek A. Błędzki, Jan Igor Rybak
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Journal of Morphology, 2003
AbstractLeptodora kindtii, a large predaceous cladoceran, is among the most deviant species of the Cladocera. Therefore, its phylogenetic position has traditionally proven difficult to determine. Its many peculiar features include, among others, long, stenopodous, forwardly directed trunk limbs, a posteriorly placed dorsal brood pouch, a tri‐lobed ...
Olesen, Jørgen +2 more
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AbstractLeptodora kindtii, a large predaceous cladoceran, is among the most deviant species of the Cladocera. Therefore, its phylogenetic position has traditionally proven difficult to determine. Its many peculiar features include, among others, long, stenopodous, forwardly directed trunk limbs, a posteriorly placed dorsal brood pouch, a tri‐lobed ...
Olesen, Jørgen +2 more
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2016
Cladocera or water fleas are mostly freshwater crustaceans that inhabit all kinds of aquatic habitats such as lakes, ponds, reservoirs, rivers, river floodplains, oxbows, bogs, pools, canals, ditches, bog pools, swamps, dune depressions, moorland pools, flooded grasslands, clay pits, or tanks. Only a few cladocerans are marine species.
Leszek A. Błędzki, Jan Igor Rybak
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Cladocera or water fleas are mostly freshwater crustaceans that inhabit all kinds of aquatic habitats such as lakes, ponds, reservoirs, rivers, river floodplains, oxbows, bogs, pools, canals, ditches, bog pools, swamps, dune depressions, moorland pools, flooded grasslands, clay pits, or tanks. Only a few cladocerans are marine species.
Leszek A. Błędzki, Jan Igor Rybak
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Morpho-functional grounds of mode of life of Cladocera. III. Oligomerization in Cladocera
Hydrobiologia, 19691. New data on the number of setae of limbs of different Chydoridae are summarized and compared with that of other families of Cladocera (see the table). These data may contribute to systematics of Cladocera. 2. The oligomerization of Cladocera takes place in appendages of different segments ind within the same segment. 3. In
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