منابع مشابه
Reproductive Strategies of Marine Benthic Invertebrates : A Settlement - Timing Hypothesis
Evidence for nudibranch molluscs is presented which shows a clear relationship between egg-size and developmental mode (planktotrophic, lecithotrophic and direct development), egg-size and development time, and thereby larval strategy and development time. Egg-to-juvenile periods differ significantly according to strategy, with lecithotrophic pelagic development being the briefest, and planktot...
متن کاملDispersal of marine benthic invertebrates through ice rafting.
Knowledge of dispersal vectors used by organisms is essential to the understanding of population and community dynamics. We report on ice rafting, a vector by which intertidal benthic invertebrates can be transported well outside their normal dispersal range during winter in temperate climates. We found multiple invertebrate taxa in sediment-laden ice blocks sampled in the intertidal zone. A la...
متن کاملSpatially stochastic settlement and the coexistence of benthic marine animals.
For sessile organisms, dispersal and recruitment are typically spatially stochastic, but there is little understanding of how this variability scales up to influence processes such as competitive coexistence. Here we argue that coexistence of benthic marine animals is enhanced by stochastic differences between species in the spatial distribution of larval settlement. Differentiation of settleme...
متن کاملNatural variability in size and condition at settlement of 3 species of marine invertebrates.
Experimental studies have demonstrated that for many marine invertebrate species, variability in larval condition or quality at settlement may have important effects on post-settlement, early juvenile performance. Relatively few studies, however, explicitly examine natural variability in larval condition at settlement. This study examines natural variability in larval attributes (size and lipid...
متن کاملInhibition of digestive enzyme activities by copper in the guts of various marine benthic invertebrates.
Digestive systems of deposit and suspension feeders can be exposed to high concentrations of copper (Cu) by ingestion of contaminated sediments. We assessed a potential impact of this Cu exposure on digestive enzyme activities in a wide range of benthic organisms by monitoring enzyme activities in their gut fluids during in vitro titrations with dissolved Cu, which mimics Cu solubilization from...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1993
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps097193