Showing papers in "Journal of Experimental Marine Biology and Ecology in 1999"

TL;DR: Results of this study provide the first clear evidence that shallow Tasmanian reef ecosystems are overfished, and that unfished coastal ecosystems differ substantially from those where fishing occurs.

TL;DR: The relationship between concentration and suspension feeding on fine SPM by four common species of Scleractinian coral on the Great Barrier Reef, Australia is investigated to find that SPM feeding at high particle concentrations may cover up to half of the carbon and a third of the nitrogen required for tissue growth.

TL;DR: The results are consistent with observed effects of other habitat-creating exotics, and suggest that facilitation of biota by non-native species capable of creating physical complexity in ecosystems may be a major and predictable consequence of biological invasions.

TL;DR: The hypothesis that differences in salinity between the Berre Lagoon and the Gulf of Fos prevents colonization of the latter by A. tonsa is tested and it is demonstrated that this species shows high mortalities if the instantaneous change in Salinity is greater than 10–15‰.

TL;DR: The results suggest that the toxicity of P. parvum is related to cellular physiological stress, due to nutrient limitation rather than to the direct involvement of either N or P in toxin synthesis.

TL;DR: Variation in rates of survivorship, reattachment and fecundity of fragments as a function of species, fragment size and habitat is assessed and asexual reproduction by fragmentation is likely to be a more important life-history trait for A. intermedia than A. millepora or A. hyacinthus.

TL;DR: The general behavior of juvenile H. scabra reflects their ability to inhabit shallow sandy areas with high terrigenous inputs and variable environmental conditions.

TL;DR: In the exponential phase of growth in all three species of Alexandrium cultured, allelopathic activity was positively related to both haemolytic and toxic activities, as suggested by previous workers for the same Alexandrium strains.

TL;DR: This study demonstrates that an organism's response to habitat patchiness is dependent upon species, taxa, functional group, and animal body size, and that an organisms's response is further modified by habitat type.

TL;DR: The distribution and abundance of the two species of sea urchins on vertical substrata at different spatial scales and through time are investigated, suggesting that the ecological role of these herbivores may be more similar than previously thought.

TL;DR: Mussels clearly had marked effects on both the fauna and sediments probably through a combination of biodeposition and filtration by the mussels and the provision of a structurally complex habitat.

TL;DR: Results show that P. setiferus juveniles are capable of changing their energy substrate in response to salinity and DO changes, which may be related to a possible strategy that allows them to obtain energy from proteins.

TL;DR: Overall, H. ovalis has a very limited tolerance to light deprivation when compared to larger species of seagrass, and the persistence of this species in coastal marine environments may be dependent upon the occurrence of transient light deprivation events.

TL;DR: In this article, the epiphytic structure appeared to play only a limited role in determining the density of most mobile epifauna in seagrass meadows, but epiphyses appeared to be important in augmenting the settlement of bivalves.

TL;DR: The general conclusion of this study was that macroepiphytes are important as habitat and food for some of the crustacean mesoherbivores inhabiting A. nodosum, but that large variations in mesohersbivore–epipHYte interactions occur among and within species.

TL;DR: In this article, the effects of anchor damage on an algal dominated seagrass (Halodule wrightii) bed in the Abrolhos Marine National Park, Brazil, were measured and assessed.

TL;DR: Results suggested that different degrees of shading could explain differences in the cover of many epibiota growing on pier pilings and adjacent rocky reefs at marinas in Sydney, Australia.

TL;DR: Individual scallops appear to trade off higher predation risk for increased growth rates, and may not be set by larval settlement patterns, unlike most bivalves.

TL;DR: High-frequency field measurements of intertidal water velocities and accelerations were conducted simultaneously with recordings of inshore wave height at four representative sites in the mid-intertidal zone of a rocky shore to provide an improved, high-resolution picture of the nature of flows typical of littoral environments and their relationship to wave height.

TL;DR: Results indicate that the structure of these assemblages cannot be predicted reliably on the basis of vertical position on the shore alone and are consistent with the hypothesis that limpets may benefit from the presence of crevices in proximity to their upper limit of distribution.

TL;DR: Overall, this experiment showed that trampling intensity had variable effects and that the interaction of season, location, indirect effects of reduction in coralline algae, and facilitative processes in recruitment of H. banksii all contribute to recovery after disturbance.

TL;DR: The outcome of DOM–nutrient interactions on algal growth is variable, and depends on the composition and amount of DOM, the concentration of nutrients in solution and the species- or strain-specific cellular nutrient requirements.

TL;DR: Although mussels in lobster effluent did exhibit greater crawling speed in the first hour of the experiment, mussels initially set far apart also showed enhanced locomotion in both lobster and control treatments, suggesting that chemotaxis may be involved.

TL;DR: Interactions between Heterocapsa circularisquama and Gymnodinium mikimotoi, causative red tide dinoflagellates, were investigated using bialgal cultures and the interaction was found to be dependent upon the initial cell densities of the two species.

TL;DR: Location within the reef habitat has a significant impact on the biology and ecology of C. virginica, and Reef heterogeneity, which allows for residence along both interstitial and tidal gradients, may provide physical and biological refugia for oysters and furnish ideal spatial platforms for growth.

TL;DR: Experiments suggest that suspension feeding bivalves may be important resource conduits converting inaccessible PON and POP in the water column to elevated sediment nutrient levels within the rhizosphere available for absorption by submerged aquatic vegetation.

TL;DR: The recovery of experimentally cleared plots in a meadow dominated by Zostera capricorni was monitored monthly by measurements of leaf shoot density and estimates of above-ground biomass, and the rate of asexual recovery slowed in autumn corresponding to the period of biomass decline in the control plots but rapidly increased in late winter and spring.

TL;DR: This study shows a relationship between shoreline configuration, the hydrodynamics, recruitment and benthic community characteristics in the St Lawrence Estuary and the generality of this relationship can be assessed by carrying out similar large-scale studies in other systems.

TL;DR: Positive relationships between abundance and shelter may be driven by prey preferences (exerted at or after the time of settlement) for areas with abundant shelter, or by use of shelter sites for purposes other than refuge from predators.

TL;DR: Results indicate that internal microtags can provide an effective means of marking small reef fish without introducing significant artifacts, with the exception of the slight reduction in growth of small C. glaucofraenum caused by acrylic paint tags.