scholarly journals Monitoring the Intertidal Environment with Biomimetic Devices

10.5772/14153 ◽  
2011 ◽  
Author(s):  
Fernando P. ◽  
Nicholas P. ◽  
Brian Helmuth ◽  
Nicole Kish ◽  
Kyle Aveni-Deforge ◽  
...  
Keyword(s):  
Intertidal Environment

Other non-marine invertebrates

1985 ◽  
Vol 309 (1138) ◽  
pp. 239-240 ◽  
Keyword(s):  
Fresh Water ◽  
Littoral Zone ◽  
Marine Invertebrates ◽  
Suspension Feeding ◽  
Larval Life ◽  
Intertidal Environment ◽  
Air Breathing ◽  
Fresh Waters ◽  
Reproductive Processes

Two classes of Mollusca have successfully emerged from the sea: the Bivalvia to fresh waters but the Gastropoda, in addition to invading the fresh water habitat, have also become fully air-breathing and live on the land. There is today a complete range from those taxa that are in every respect fully marine to those that are completely independent of the sea. The possible pathways from the sea to these environments are by surviving reduced or varying salinities, which it might be assumed occur in intertidal or estuarine conditions, or by surviving periodic and increasing exposure in air, again a condition of the intertidal environment. The prerequisite for emergence from the sea must have been the presence of food. In the initial emergence this could have been provided by detritus derived from the sea and deposited along a feature such as a storm beach. Such an environment is probably important for some Ellobiidae today. To spread onto the land and into the fresh water Mollusca, as other essentially grazing or suspension feeding animals, were presumably preceded by Bacteria or plants, or both. The initial modifications to metabolic and reproductive processes, outlined by Little (1983), may have taken place high in the littoral zone, supported by detritus and, as in the Ellobiidae, remaining dependent on the sea during larval life. The expansion and radiation of the Mollusca that has followed may have been related to the increase in habitats made available by the plants.

Assessing the morphological and physiological adaptations of the parasitoid waspEchthrodesis lamoralifor survival in an intertidal environment

2017 ◽  
Vol 42 (2) ◽  
pp. 173-180 ◽  
Author(s):  
Candice A. Owen ◽  
Julie A. Coetzee ◽  
Simon van Noort ◽  
Andrew D. Austin
Keyword(s):  
Intertidal Environment ◽  
Physiological Adaptations

Intertidal environment of Northern Dublin Bay

1978 ◽  
Vol 7 (2) ◽  
pp. 163-171 ◽  
Author(s):  
D.W. Jeffrey ◽  
P.H. Pitkin ◽  
A.B. West
Keyword(s):  
Intertidal Environment

scholarly journals Marine Regression and Palaeoenvironments During the Holocene in the Richardson River Basin, District of Mackenzie, N.W.T.

2007 ◽  
Vol 38 (2) ◽  
pp. 185-192
Author(s):  
Daniel E. Kerr
Keyword(s):  
River Basin ◽  
Marine Sediments ◽  
Late Quaternary ◽  
Intertidal Environment ◽  
River Bank ◽  
Shallow Marine ◽  
Isostatic Uplift ◽  
River Basin District ◽  
Marine Facies ◽  
The Many

ABSTRACT A detailed stratigraphie analysis was carried out on a river-bank section of late Quaternary marine sediments in the Richardson River Basin, N.W.T. The sedimentary sequence represents a gradual shallowing of the sea in an estuarine environment, from a relatively shallow marine faciès to an intertidal environment. The withdrawal of the sea from the Richardson River Basin began prior to 10,300 years BP. Isostatic uplift caused the gradual regression of the sea to its present-day level. The marine sediments yielded 26 ostracode and 14 foraminifer species. Faunal evidence is indicative of brackish-water marginal marine conditions resulting from the dilution of nearshore marine waters by freshwater discharge from the many streams and rivers draining the basin of the Richardson River.

scholarly journals Effect of depth gradient and temperature on Zostera marina vegetative and reproductive phenology in the first year of the 1997–1998 El Niño

2021 ◽  
Vol 47 (1) ◽  
Author(s):  
Alf Enrique Meling-López ◽  
Silvia Emilia Ibarra-Obando ◽  
Horacio De la Cueva ◽  
Pedro Ortega-Romero ◽  
Adriana Leticia Navarro-Verdugo
Keyword(s):  
El Niño ◽  
Zostera Marina ◽  
El Nino ◽  
Southern Oscillation ◽  
Reproductive Phenology ◽  
Intertidal Environment ◽  
Reproductive Shoot ◽  
Stressful Environment ◽  
Subtidal Environment ◽  
Reproductive Biomass

Does Zostera marina exhibit phenotypic plasticity, maximizing fitness in traits responding to environmental factors, i.e., depth and temperature? We compared the vegetative and sexual phenology and reproductive effort of Z. marina by analyzing vegetative and reproductive shoot density, biomass, and reproductive stages to determine structural features of vegetative and reproductive shoots from subtidal and intertidal environments in San Quintín Bay, Baja California, a year before and after the 1997–1998 El Niño/Southern Oscillation (ENSO). We found significant differences in vegetative and reproductive biomass between intertidal and subtidal environments driven by temperature differences between ENSO and non-ENSO years. Subtidal plants had lower density of long reproductive shoots and a shorter reproductive cycle. Seed release occurred from May to October in the subtidal environment, and from May to November in the intertidal environment. Maximal recorded values were 219.5 (±45.8) seeds per reproductive shoot in the subtidal environment and 151.3 (±21.5) in the intertidal environment. We observed higher sexual activity and lower vegetative biomass in the intertidal environment, the most stressful environment. Both vegetative and reproductive biomass were affected by the increase in temperature during ENSO, but vegetative and reproductive shoot densities were not affected.

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