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Variation in the Size, Energy Content, and Biochemical Composition of Invertebrate Eggs: Correlates to the Mode of Larval Development
- W. Jaeckle
Feeding by a “nonfeeding” larva: uptake of dissolved amino acids from seawater by lecithotrophic larvae of the gastropod Haliotis rufescens
These lecithotrophic larvae are not energetically independent of their environment, a result which differs from the current view of energy allocation to “nonfeeding” larvae.
Multiple Modes of Asexual Reproduction by Tropical and Subtropical Sea Star Larvae: an Unusual Adaptation for Genet Dispersal and Survival.
- W. Jaeckle
- BiologyThe Biological bulletin
- 1 February 1994
Sea star larvae (Echinodermata: Asteroidea), collected from the subtropical Northwest Atlantic Ocean, exhibited three distinct modes of asexual reproduction, which provide a common mechanism to increase the length of larval life and amplify the number of individuals.
Growth and Energy Imbalance During the Development of a Lecithotrophic Molluscan Larva (Haliotis rufescens)
Estimates of the contribution that dissolved organic material in seawater could provide to larvae, showed that this pool of exogenous material could supply the missing energy.
Rates of energy consumption and acquisition by lecithotrophic larvae of Bugula neritina (Bryozoa: Cheilostomata)
- W. Jaeckle
- Environmental Science, Biology
- 1 July 1994
The data suggest that the duration of planktonic life of B. neritina larvae is principally regulated by the amount of endogenous energy stores, but may be modulated by available DOM in seawater.
Identification of Asteroid Genera With Species Capable of Larval Cloning
- K. Knott, E. Balser, W. Jaeckle, G. Wray
- Biology, Environmental ScienceThe Biological Bulletin
- 1 June 2003
This study is the first to identify field-collected cloning asteroid larvae, and provides evidence that larval cloning is phylogenetically widespread within the Asteroidea.
Ontogenic Changes in the Rates of Amino Acid Transport from Seawater by Marine Invertebrate Larvae (Echinodermata, Echiura, Mollusca)
Transport rates of amino acids were deter mined for larvae of different ages of the echiuran worm Urechis caupo, the gastropod Haliotis ruftscens, the bi valve Crassostrea gigas, and the sea urchin…
Transport and Metabolism of Alanine and Palmitic Acid by Field-Collected Larvae of Tedania ignis (Porifera, Demospongiae): Estimated Consequences of Limited Label Translocation.
- W. Jaeckle
- Environmental Science, BiologyThe Biological bulletin
- 1 October 1995
Autoradiographic analysis of the distribution of the label in larvae suggests that epidermal cells are the chief recipients of the assimilated materials, and the contribution of transport to whole-larva metabolism may underestimate the tissue-specific value.
Comparison of eggshell porosity and estimated gas flux between the brown-headed cowbird and two common hosts
- W. Jaeckle, M. Kiefer, B. Childs, R. G. Harper, J. Rivers, B. D. Peer
- Environmental Science
- 1 November 2012
Results are consistent with the hypothesis that the rapid development of brown-headed cowbird embryos is facilitated by increased eggshell porosity, and that changes in egg shell porosity represent an adaptation that enables cowbird eggs to hatch earlier than equivalently-sized host eggs.
Amino Acid Uptake and Metabolism by Larvae of the Marine Worm Urechis caupo (Echiura), a New Species in Axenic Culture.
A comparison of the energy acquired from the transport of alanine, with the metabolic rate of 4-day-old larvae, revealed that 51% of the metabolic demand could be provided by the transport and complete catabolism of this single amino acid at a concentration of 595 nM in seawater.