Morphological Form and Photosynthetic Performances of Marine Macroalgae: Tests of a Functional / Form Hypothesis

@inproceedings{Littler1980MorphologicalFA,
  title={Morphological Form and Photosynthetic Performances of Marine Macroalgae: Tests of a Functional / Form Hypothesis},
  author={Mark M. Littler},
  year={1980}
}
Net and gross production rates were determined in the field at light intensities above 20,000 lux for 45 species of marine macroalgae from four different environments in southwestern North America. Thin sheetlike and finely branched thallus-forms showed greater rates than other forms. A morphological form more suited to efficiently utilize light energy and obtain nutrients is clearly related to the differences measured. There was a close relationship between dry weight as well as two… 

Figures from this paper

THE EFFECTS OF MORPHOLOGY AND WATER FLOW ON PHOTOSYNTHESIS OF MARINE MACROALGAE
TLDR
Observations and experimental results supporting the view that macroalgal morphology can represent a balance between maximizing photosynthetic ability and limiting susceptibility of the thallus to mechanical damage and/or dislodgement by hydrodynamic forces are presented.
Implications of thallus thickness for growth-irradiance relationships of marine macroalgae
TLDR
Large differences in the growth-irradiance relationship depending on the biomass parameter (surface area, fresh weight, carbon content) applied were found and use of carbon content appeared to be the most suitable descriptor of plant energetics.
The Evolution of Thallus Form and Survival Strategies in Benthic Marine Macroalgae: Field and Laboratory Tests of a Functional Form Model
TLDR
Data on succession, productivity, and toughness indicate that E. menziesii shifts from an opportunistic strategy during its juvenile stages to a highly differentiated complex form able to persist in mature successional stages, thus implicating selection for persistence as opposed to rapid growth in climax communities.
Functional Responses Associated with Growth Form in Stream Algae
TLDR
The overall results are consistent with the hypothesis that the functional attributes of lotic algae are related to their growth form, however, other factors beside growth form also can influence the functional performance and, by inference, the distribution of lotsic algae in nature.
Patterns in the photosynthetic metabolism of Mediterranean macrophytes
TLDR
The existence of a general relationship between tissue thickness and the photosynthetic performance of photosynthesis is suggested, which lends support to the important adaptive role of marine macrophyte tissues in the past.
Seasonal Patterns of Photosynthesis and Physiological Parameters and the Effects of Emersion in Littoral Seaweeds
TLDR
Seasonal submersed P-I curves of five species of intertidal seaweeds of differing morphologies from different shore zones on a South African rocky shore have been measured, providing evidence that the possession of mucilage functions as a physiological mechanism to resist desiccation in the high shore species Porphyra capensis.
PRIMARY PRODUCTIVITY OF MARINE MACROALGAL FUNCTIONAL‐FORM GROUPS FROM SOUTHWESTERN NORTH AMERICA 1
TLDR
New productivity data are given for 62 macroalgal species from 6 intertidal habitats spanning a latitudinal range of nearly twelve degrees on the Pacific Coast of south‐western North America to support an hypothesis relating morphological forms to photosynthetic performances.
Comparisons of nutrient uptake rates for Baltic macroalgae with different thallus morphologies
TLDR
The highest uptake rates were measured for short-lived, opportunistic algae, filamentous or with numerous hairs, and the latter group also had the highest Vmax:kmax ratios, which indicates a more competitive advantage for nutrient uptake at low concentrations.
...
...

References

SHOWING 1-10 OF 21 REFERENCES
Uptake of P32 and Primary Productivity in Marine Benthic Algae1
TLDR
Data suggested that when environmental concentration of phosphorus is low, as is usual in the sea, it is absorbed at a rate related to the inherent surface area features of the alga, high surface-to-volume ratio increasing the rate of uptake as well as increasing the ability of a given biomass of plant to fix energy under favorable light conditions.
Photosynthetic rates of benthic marine algae in relation to light intensity and seasonal variations
The effect of light intensity on rate of photosynthesis was measured at irregular intervals over a 12-month period for 22 benthic marine algae in the western Baltic Sea. In most species
The primary productivity of marine macrophytes from a rocky intertidal community
TLDR
The production rates of 18 marine macrophytes near Wilson Cove, San Clemente Island, are close to those for other marine algal communities and no apparent relationship was revealed between the productivity of an alga and the division to which it belongs; however, productivity was associated with growth form.
Seaweeds: Their Productivity and Strategy for Growth
  • K. Mann
  • Environmental Science
    Science
  • 1973
TLDR
While the intertidal zone is inhabited primarily by the fucoids, or rockweeds, the sublittoral is dominated by fish, and the growth of seaweeds below lowtide level, in the sub littoral, is far richer than in the interTidal areas.
Seasonal variations in salt-march macroalgae photosynthesis. II. Fucus vesiculosus and Ulva lactuca
TLDR
Photosynthesis in whole plants of the salt-marsh algae Fucus vesiculosus and Ulva lactuca was evaluated by 14C-uptake under a variety of light intensities during a 15-month study and indicated that apices always exhibited greatest photosynthetic capacity.
SEAWEED ANATOMY AND PHOTOSYNTHETIC PERFORMANCE: THE ECOLOGICAL SIGNIFICANCE OF LIGHT GUIGES, HETEROGENEOUS ABSORPTION AND MULTIPLE SCATTER 1 2
TLDR
Extrapolated diel variation in photosynthesis shows that U. lactuca's anatomy is adaptive for high light intensity environments, whereas C. fragile's anatomy was shown to be adaptive for low lightintensity environments.
Seasonal variations in salt-marsh macroalgae photosynthesis. I. Ascophyllum nodosum ecad scorpioides
TLDR
Both photosynthetic potential and biomass were inversely related to growth patterns of the salt-marsh phanerogam Spartina alternilora and were closely related to seasonal changes in field biomass.
Life Forms in the Algae
TLDR
A review of life-form schemes in the algae is given and a new one is proposed because no previous scherne has had wide acceptance and is intended to be a reflection of habitat responses and to be applicable to both maiine and freshwater algae.
...
...