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Preferential Feeding: An Optimization Strategy in Sea Urchins
Strongylocentrotus drobachiensis and S. franciscanus exhibited strong algal preferences in laboratory studies. A generalized ranking of algae from most to least preferred for both sea urchinsExpand
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THE EFFECTS OF GRAZING BY SEA URCHINS, STRONGYLOCENTROTUS SPP., ON BENTHIC ALGAL POPULATIONS1
A series of shallow intertidal pools at Mukkaw Bay, Washington, ranging in height from −0.3 to +0.6 m had the urchin Strongylocentrotus purpuratus removed from them. Subtidal rocks at Friday Harbor,Expand
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Calorific values of benthic marine algae and their postulated relation to invertebrate food preference
Data are given on the kcal/g dry weight, percent ash, and kcal/ash-free g of dry weight for 1 marine diatom species, 70 macroscopic benthic algae, and 1 marine tracheophyte species. For 41 of these,Expand
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Biomass and Productivity of Red and Green Algae in Cobscook Bay, Maine
Abstract We characterized the biomass and productivity of relatively short-lived red and green algae at seven intertidal sites in Cobscook Bay during the summers of 1995 and 1996 in coves (low flow,Expand
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ZONATION OF DEEP WATER BENTHIC ALGAE IN THE GULF OF MAINE 1
Algal community structure is described for a deep‐water rock pinnacle in the Gulf of Maine. Three depth zones of algal dominance were apparent consisting of 1) leathery macrophytes (to 40 m), 2)Expand
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Growth and Productivity of Sublittoral Fringe Kelps (Laminaria longicruris) Bach. Pyl. in Cobscook Bay, Maine
Abstract We examined the growth, productivity, and turnover of sublittoral fringe populations of Laminaria longicruris in high- and low-flow habitats (headlands and bays, respectively) in CobscookExpand
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Oxygen uptake and responses to respiratory stress in sea urchins.
1. Oxygen uptake (VO2) by sea urchins has been measured and correlated with partial pressures of oxygen in the ambient water (PiO2) and in coelomic fluid (PcfO2). PcfO2 was also analyzed in samplesExpand
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Experimental field tests of natural algal diets on gonad index and quality in the green sea urchin, Strongylocentrotus droebachiensis: a case for rapid summer production in post-spawned animals
Abstract We tested whether the roe (gonads) of “post-spawned”, green sea urchins, Strongylocentrotus droebachiensis, from barren grounds could be enhanced in the field during summer. Experiments wereExpand
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A Diurnal Settling Rhythm in Platymonas subcordiformis Hazen
SYNOPSIS. In cultures of Platymonas subcordiformis Hazen, grown in appropriate light-dark cycles, as many as 75% of the cells adhered to the surface of the glass culture vessel toward the end of theExpand
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