Results 321 to 330 of about 245,246 (359)
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Ophelia, 2002
Abstract Many types of suspension-feeding plankton larvae produce one or more, up to 1 cm long mucous strings. These function as drift anchors by increasing hydrodynamic drag. This effect, together with gravitational forces, allows the larvae to remain almost motionless relative to the undisturbed water column while feeding. Larvae that are essentially
Fenchel, T., Ockelmann, Kurt Wolfgang
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Abstract Many types of suspension-feeding plankton larvae produce one or more, up to 1 cm long mucous strings. These function as drift anchors by increasing hydrodynamic drag. This effect, together with gravitational forces, allows the larvae to remain almost motionless relative to the undisturbed water column while feeding. Larvae that are essentially
Fenchel, T., Ockelmann, Kurt Wolfgang
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SWIMMING AND FEEDING IN CRUSTACEAN LARVAE: THE NAUPLIUS LARVA
Proceedings of the Zoological Society of London, 1959SUMMARYAn account is given of swimming and feeding in the nauplii of Artemia, Balanus, Calanus and Oithona, with observations on other nauplii. Previous work is reviewed.In all cases the antennae are the principal locomotion organs. The antennules may play little or no part in locomotion and are mainly balancing organs.In Artemia the antennae are also ...
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Molluscan Larvae: Pelagic Juveniles or Slowly Metamorphosing Larvae?
The Biological Bulletin, 2009Asking the right questions about evolution of development, larval morphology, and life history requires knowledge of ancestral state. Two hypotheses dominate current opinion about the ancestral life cycle of bilaterians: the "larva-first" and the "intercalation" hypotheses. Until recently, the larva-first hypothesis was preeminent.
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Jasmonate in Lepidopteran Larvae
Journal of Chemical Ecology, 2006Jasmonic acid (JA) is a key molecule initiating plant defensive responses to herbivory. Our previous work has shown that this phytohormone is often present at high concentrations in eggs and neonates of lepidopteran species. In this work, we document the concentrations of JA found in various tissues of larval H.
John F. Tooker, Consuelo M. De Moraes
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2009
Publisher Summary This chapter focuses on the larval stage of insect lifecycle. The term “larva” is used for all immatures that are not eggs, pupae, or adults. When larva is used in this comprehensive sense, the subcategories include exopterygote larva, for Hemimetabola, which have the wingpads developing externally, and endopterygote larva, for ...
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Publisher Summary This chapter focuses on the larval stage of insect lifecycle. The term “larva” is used for all immatures that are not eggs, pupae, or adults. When larva is used in this comprehensive sense, the subcategories include exopterygote larva, for Hemimetabola, which have the wingpads developing externally, and endopterygote larva, for ...
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New Zealand Veterinary Journal, 1963
Abstract Extract Sir,—I wish to report an unusual case of mastitis in a two-year-old Jersey heifer calved three months.
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Abstract Extract Sir,—I wish to report an unusual case of mastitis in a two-year-old Jersey heifer calved three months.
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On the larvae and larva-cases of some Australian Aphrophoridae
1885(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Journal of the American Podiatric Medical Association, 1966
S J, Kleger, B, Feldman
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S J, Kleger, B, Feldman
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Journal of the Marine Biological Association of the United Kingdom, 1940
Little is known of the larvac of the Pandalidac as is shown by Gurney (1939) in his Bibliography of the Larvae of Decapod Crustacea. Berkeley (1930,1938) describes the life histories of several species of Pandalus and of Pandalopsis dtspar from British Columbia, and Gurney (1937) the larvae and post-larvae of Chlorotocella, but beyond these the ...
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Little is known of the larvac of the Pandalidac as is shown by Gurney (1939) in his Bibliography of the Larvae of Decapod Crustacea. Berkeley (1930,1938) describes the life histories of several species of Pandalus and of Pandalopsis dtspar from British Columbia, and Gurney (1937) the larvae and post-larvae of Chlorotocella, but beyond these the ...
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