Journal of Experimental Marine Biology and Ecology

Items from 1 to 20 out of 6,055 results

article

Breeding in a rockpool: Larvae of the semiterrestrial crab Armases [ = Sesarma] miersii (Rathbun) (Decapoda: Grapsidae) develop in a highly variable environment

Martina Schuh, Rudolf Diesel

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 109-129

The sesarmid crab Armases miersii (Rathbun) undergoes development in supratidal rockpools. We studied the ecological conditions in these pools, the breeding behavior of females, and the larval development and behavior on the Jamaican north coast in spring and summer 1992 to 1994. Individually marked females showed a high site fidelity, visited, molted and released their larvae repeatedly in the same...

article

Community-level attributes of exploited and non-exploited rocky infratidal macrofaunal assemblages in Transkei

T. A. Lasiak, J. G. Field

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 33-53

The rocky intertidal biota along the Transkei coast of southern Africa is subject to intense exploitation by the indigenous coastal inhabitants. To assess the putative ecological impact of such unconstrained foraging activities the infratidal macrofaunal assemblages at three exploited sites were contrasted with those at two adjacent non-exploited sites. Comparisons of community-level attributes were...

article

The effect of larval trematodes on the growth and burrowing behaviour of Hydrobia ulvae (gastropoda:prosobranchiata) in the Ythan estuary, north-east scotland

M. Huxham, D. Raffaelli, A. W. Pike

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 1-17

Hydrobia ulvae were collected from five areas on the Ythan estuary, and the prevalences of digenean parasites in the samples compared. Differences in mean shell height were best explained by differences in parasite prevalence. All snails larger than 6.1 mm were infected, with a strong correlation between size and probability of infection. Comparisons of depth distributions of different size classes...

article

Top down vs. bottom up control of benthic community composition on an intertidal tideflat

Martin Posey, Christopher Powell, Lawrence Cahoon, David Lindquist

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 19-31

Nutrient enrichment and predation have been shown to have important, though sometimes conflicting, effects on intermediate trophic levels in freshwater communities. Though predation is also important in structuring marine soft-sediment benthic communities, the influence of nutrient enrichment in marine benthic systems is less well understood. We examined the interactive effects of nutrient enrichment...

article

Comparative study on populations of Zostera marina L. (eelgrass): experimental germination and growth

Frances van Lent, Jacobus M. Verschuure

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 77-91

Seeds of both perennial and (semi-)annual populations of Zostera marina L. originating from different habitats in the southwestern Netherlands and Roscoff (Brittany, France) were germinated and grown under identical circumstances to identify possible genotypically based differences in their population dynamical characters. Individual populations displayed a genotypic background for germination, morphology...

article

Comparative study on populations of Zostera marina L. (eelgrass): in situ nitrogen enrichment and light manipulation

Frances van Lent, Jacobus M. Verschuure, Manfred L.J. van Veghel

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 55-76

The combined effects of light and nitrogen availability on population dynamical characteristics (e.g. growth rate, biomass, density, flowering) of a perennial and semi-annual population ofZostera marina L. were experimentally studied in two non-tidal lagoons (Grevelingen and Veerse Meer). Light reduction ( 70%) significantly reduced all population dynamical features measured in both populations...

article

Behavioral response of larval Atlantic menhaden Brevoortia tyrannus (Latrobe) and spot Leiostomus xanthurus (Lacepede) to rates of salinity change

M. C. De Vries, R. B. Forward, W. F. Hettler

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 1 > 93-108

Larval Atlantic menhaden [Brevoortia tyrannus (Latrobe)] and spot [Leiostomus xanthurus) (Lacepede)] are transported from the western Gulf Stream edge to bays and estuaries of the southeastern United States. Direction of water flow on the continental shelf varies with depth, allowing the potential for enhancement of shoreward transport by behavioral depth regulation, possibly in response to vertical...

article

Compensation in resource use by foragers released from interspecific competition

Sally J. Holbrook, Russell J. Schmitt

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 219-233

On shallow reefs where their populations co-occur, black surfperch (Embiotoca jacksoni Agazzi) and striped surfperch (Embiotoca lateralis Agazzi) compete strongly for a single preferred resource, dense patches of crustacean food located on the alga Gelidium robustum. Four-year-long competition experiments revealed a substantial degree of density compensation by each competitor; densities of each...

article

Effect of production and biomass of intertidal microphytobenthos on meiofaunal grazing rates

Paul A. Montagna, Gérard F. Blanchard, Alain Dinet

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 149-165

Microphytobenthos dominate primary production in unvegetated intertidal habitats. Meiofauna are likely to be important consumers of this productivity, yet little is known about meiofauna herbivory in these environments. We studied meiofaunal grazing on microphytobenthos from an intertidal mudflat on the southwest coast of France. Meiofaunal grazing rates were measured in response to manipulations...

article

Daily movements, habitat use, and submergence intervals of normal and tumor-bearing juvenile green turtles (Chelonia mydas L.) within a foraging area in the Hawaiian islands

Richard W. Brill, George H. Balazs, Kim N. Holland, Randolph K. C. Chang, more

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 203-218

Depth-sensitive ultrasonic transmitters monitored the horizontal and vertical movements of 12 juvenile (< 65 cm carapace length) green turtles (Chelonia mydas L.) in Kaneohe Bay, Oahu (Hawaii, USA). This site was chosen because of its accessibility, its importance as a foraging area, and the high incidence ( 50%) of fibropapillomatosis, a tumor disease of unknown etiology. Our objectives were...

article

On the inclusion of trace materials into massive coral skeletons. 1. Materials occurring in the environment in short pulses

R. B. Taylor, D.J. Barnes, J.M. Lough

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 255-278

Trace materials included in coral skeletons during growth provide three distinct types of proxy environmental record; long-term (years to decades), annual and short-term or pulse records. Long-term records are not likely to be affected by skeletal growth mechanisms because these mechanisms operate at annual or shorter time scales. However, annual and pulse records will be affected by annual...

article

Effect of light intensity on vertical migrations of the tree crab, Sesarma leptosoma Hilgendorf (Decapoda, Grapsidae)

Marco Vannini, S. Cannicci, K. Ruwa

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 181-189

Sesarma leptosoma is a mangrove crab that lives among the mangrove roots and migrates twice a day to the canopy to feed on leaves and leaf-buds. An experiment was performed by covering the whole root system of mangrove trees with white and black tents, thus differentially reducing the light intensity reaching the crabs, in order to investigate whether the light level could be responsible for the...

article

A flexible response to a major predator provides the whelk Buccinum undatum L. with nutritional gains

Rémy Rochette, Stéphane Morissette, John H. Himmelman

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 167-180

We examined the association of the common whelk Buccinum undatum with the predatory asteroidLeptasterias polaris in the Mingan Islands, northern Gulf of St. Lawrence. Quantitative sampling, using SCUBA diving, of surfaces of the sea floor in the vicinity (within 150 cm) of feeding and non feeding L. polaris and surfaces devoid of asteroids showed that both immature and mature whelks generally avoid...

article

Responses of settling invertebrate larvae to bioorganic films: effects of different types of films

Michael J. Keough, Peter T. Raimondi

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 235-253

Larvae of benthic invertebrates are exposed to a variety of chemical cues, many of biological origin, as they near a potential settlement surface. One such cue is the bioorganic film that covers many surfaces, and some laboratory evidence suggests that larvae respond to the presence or absence of such films. Our earlier work has shown that, at two field sites in southeastern Australia, a variety...

article

Impact of daily photosynthetic period on protein synthesis and carbohydrate stores in Zostera marina L. (eelgrass) roots: implications for survival in light-limited environments

George P. Kraemer, Randall S. Alberte

Journal of Experimental Marine Biology and Ecology > 1995 > 185 > 2 > 191-202

The daily period of light-saturated photosynthesis (H _s _a _t ) determines the length of time thatZostera marina L. roots must function anaerobically. The effects of the duration of H _s _a _t period on leaf growth rates, root protein metabolism and plant carbohydrate stores of eelgrass were investigated. Growth rates declined linearly with decreasing H _s _a ...

article

Larval dispersal in the ascidian Ciona intestinalis (L.). Evidence for a closed population

Jens Kjerulf Petersen, Ib Svane

Journal of Experimental Marine Biology and Ecology > 1995 > 186 > 1 > 89-102

Dispersal in ascidians is influenced by the reproductive mode and the mobility of a non-feeding larva. All available evidence indicates that mechanisms have evolved to ensure settlement close to the adult population. Populations of the solitary ascidian Ciona intestinalis (L.) are generally found heterogeneously distributed both spatially and temporally, and in Scandinavian waters the species is...

article

The use of polyclonal antisera and blocking of antibodies in the identification of marine dinoflagellates: species-specific and clone-specific antisera against Gymnodinium and Alexandrium

Hector Mendoza, Victoria López-Rodas, Sonsoles González-Gil, Angeles Aguilera, more

Journal of Experimental Marine Biology and Ecology > 1995 > 186 > 1 > 103-115

Separate polyclonal antibodies were developed against cell surface antigens of the 4 dinoflagellate species: (a) Gymnodinium catenatum; (b) a morphologically similar non-toxic dinoflagellate Gyrodinium sp.; (c) Alexandrium minutum; and (d) morphologically similar A. lusitanicum. Blocking of antibodies to obtain clone-specificity were performed. Positive immunofluorescence reactions were visualized...

article

Breeding experiments confirm species status of two morphologically similar gastropods (Lacuna spp.) in central California

K. M. Langan-Cranford, J. S. Pearse

Journal of Experimental Marine Biology and Ecology > 1995 > 186 > 1 > 17-31

Two species of gastropods, Lacuna marmorata Dall, 1919, and L. unifasciata Carpenter, 1857, commonly co-occur on surfgrass in central California. They are very similar in color, shell shape, and radular form; morphometric analyses demonstrate about 10% overlap in shell shape, and both color and radular form are ambiguous characters. Egg-laying and breeding experiments revealed differences between...

article

Effects of tributyltin (TBT) exposure on the veliger larvae development of the bivalve Scrobicularia plana (da Costa)

J. M. Ruiz, G. W. Bryan, P. E. Gibbs

Journal of Experimental Marine Biology and Ecology > 1995 > 186 > 1 > 53-63

Laboratory-obtained veliger larvae of the bivalve Scrobicularia plana were used to test the toxicity of the antifoulant tributylin (TBT) by means of a static renewal trial which monitored larval survival and growth as influenced by nominal TBT concentrations of 50, 125, 250 and 500 ng Sn 1 ^- ¹ during 10-day exposure. While S. plana veligers (mean initial shell length = 100 μm) were found...

article

Metabolic responses of the scleractinian coral Porites cylindrica Dana to water motion. I. Oxygen flux studies

Augustus Rex, F. Montebon, Helen T. Yap

Journal of Experimental Marine Biology and Ecology > 1995 > 186 > 1 > 33-52

Nubbins of Porites cylindrica Dana collected from a shallow reef flat in the northwestern Philippines were studied for water motion effects. Specimens were maintained in field and laboratory high (HWM) and low (LWM) water motion setups. The average maintenance times were 93 and 77 days for the field and laboratory study, respectively, which were carried out in tandem. After each maintenance period,...

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GROWTH (217)
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MEDITERRANEAN (27)
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INFONA - science communication portal

Journal of Experimental Marine Biology and Ecology

Breeding in a rockpool: Larvae of the semiterrestrial crab Armases [ = Sesarma] miersii (Rathbun) (Decapoda: Grapsidae) develop in a highly variable environment

Community-level attributes of exploited and non-exploited rocky infratidal macrofaunal assemblages in Transkei

The effect of larval trematodes on the growth and burrowing behaviour of Hydrobia ulvae (gastropoda:prosobranchiata) in the Ythan estuary, north-east scotland

Top down vs. bottom up control of benthic community composition on an intertidal tideflat

Comparative study on populations of Zostera marina L. (eelgrass): experimental germination and growth

Comparative study on populations of Zostera marina L. (eelgrass): in situ nitrogen enrichment and light manipulation

Behavioral response of larval Atlantic menhaden Brevoortia tyrannus (Latrobe) and spot Leiostomus xanthurus (Lacepede) to rates of salinity change

Compensation in resource use by foragers released from interspecific competition

Effect of production and biomass of intertidal microphytobenthos on meiofaunal grazing rates

Daily movements, habitat use, and submergence intervals of normal and tumor-bearing juvenile green turtles (Chelonia mydas L.) within a foraging area in the Hawaiian islands

On the inclusion of trace materials into massive coral skeletons. 1. Materials occurring in the environment in short pulses

Effect of light intensity on vertical migrations of the tree crab, Sesarma leptosoma Hilgendorf (Decapoda, Grapsidae)

A flexible response to a major predator provides the whelk Buccinum undatum L. with nutritional gains

Responses of settling invertebrate larvae to bioorganic films: effects of different types of films

Impact of daily photosynthetic period on protein synthesis and carbohydrate stores in Zostera marina L. (eelgrass) roots: implications for survival in light-limited environments

Larval dispersal in the ascidian Ciona intestinalis (L.). Evidence for a closed population

The use of polyclonal antisera and blocking of antibodies in the identification of marine dinoflagellates: species-specific and clone-specific antisera against Gymnodinium and Alexandrium

Breeding experiments confirm species status of two morphologically similar gastropods (Lacuna spp.) in central California

Effects of tributyltin (TBT) exposure on the veliger larvae development of the bivalve Scrobicularia plana (da Costa)

Metabolic responses of the scleractinian coral Porites cylindrica Dana to water motion. I. Oxygen flux studies

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