Die Primärproduktion in mediterranen Caulerpa-Cymodocea -Wiesen Aus der Station Zoologique Villefranche sur mer

Gessner, Fritz; Hammer, Lieselotte

doi:10.1515/botm.1960.2.1-2.157

Cited by 29 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The highest shoot density in summer at Stn R1 is well above values reported for C. nodosa elsewhere (Caye & Meinesz 1985, Pirc unpubl. ) although such high values can also be expected for other locations as indicated in the study of Gessner & Hammer (1960), who reported close to 9000 leaves m-2 in early October along the French coast. In the study area the reduced water transparency mentioned above seems to influence shoot density along the depth gradient.…”

Section: Biomasssupporting

confidence: 83%

“…The productivity value for Cyn~odocea nodosa given by Zieman & Wetzel (1980) is misleading since the original work by Gessner & Hammer (1960) refers to a mixed Caulerpa-Cymodocea association. Moreover, these NPP rates are most probably erratic since they are based solely on 2 measurements conducted with Caulerpa only, i.e.…”

Section: Productionmentioning

confidence: 99%

“…Along the French coast of the Mediterranean this species occupies wide expanses down to 18 m depth (Gessner & Hammer 1960, Caye & Meinesz 1985 and is reported to be the most frequent phanerogam in the Gulf of Trieste (Northern Adriatic Sea) (Simonetti 1973). Eutrophication in the Northern Adriatic appears to be increasing (Degobbis et al 1979, Stachowitsch 1986, Benovic et al 1987, Justic 1988 and there is some evidence that the distribution of C. nodosa can be influenced by pollution (Avcin et al 1974).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Primary production of Cymodocea nodosa in the Gulf of Trieste (Northern Adriatic Sea): a comparison of methods

Peduzzi¹,

Vuković²

1990

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Net primary production of Cymodocea nodosa, a common seagrass in the Mediterranean Sea, was monitored in the Gulf of Trieste using 3 techniques. Production ylelds obtained by a method based on changes in biomass and leaf export, as indicated by the presence of leaf scars, were compared with 2 other approaches, a marking technique and the oxygen evolution in situ. In August-September, maximum total standing biomass at 3 stations ranged between 323 and 1020 g dry wt m-2. At the shallowest station, ca 88 % of total biomass was below ground, compared to 61 % at deeper stations. Leaf area indices varied throughout the growing season between 0.12 and 7.24, indicating a distinct seasonal pattern in leaf production. On average up to 10 leaves were produced shoot-' yr-l; export rates of leaf material were highest in summer. Leaf production, as estimated by the leaf scar and marking techniques, ranged from 356 to 692 g dry wt m-2 yr-l. Combined annual rhizome-root production was highest at the shallowest station (234 g dry wt m-2) compared to 72 g dry wt m-2 at deeper stations.Annual total net primary production based on the 02-method yielded the lowest results, but the seasonal pattern correlated well with results from the marking technique. Each of the 3 methods, when applied conscientiously accordmg to the desired information, can provide reasonable estimates for the production of C. nodosa, although the 02-technique possibly underestimates production peaks. In order to estimate production yields only, the leaf scar method is recommended as an easily applicable technique. If production rate is one of the parameters of interest, the marking technique appears the most reliable. Average total net pnmary production was calculated to be ca 620 g dry wt m-' yr-' for C. nodosa for this part of the Adriatic Sea. Turnover rates of maximum total plant material and of only leaf material were 1.1 and 3 yr-' respectively.

show abstract

Section: Biomasssupporting

confidence: 83%

Section: Productionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Primary production of Cymodocea nodosa in the Gulf of Trieste (Northern Adriatic Sea): a comparison of methods

Peduzzi¹,

Vuković²

1990

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Several reports have addressed the magnitude of biomass and production of C. nodosa (Gessner & Hammer 1960, Drews 1978, Peduzzi & Vuckovic 1990, Vant Lent et al 1991, Terrados & Ros 1992), but its ecological role is poorly known because only a few aspects of the fate of its production have been examined (Mateo 1995, Cebrián et al 1996, 1997. Moreover, meadows of C. nodosa often comprise different stages of development (Duarte & SandJensen 1990a, Marbà & Duarte 1995, thereby providing a good scenario for examining the effects of meadow development on the fate of seagrass production.…”

Section: Introductionmentioning

confidence: 99%

Fate of production of the seagrass Cymodocea nodosa in different stages of meadow formation

Cebrián¹,

Pedersen²,

Kroeger³

et al. 2000

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Many seagrass species can be found in different stages of meadow formation, from recently established patches to fully developed meadows. However, little is known about how the fate of seagrass production (i.e. herbivory, decomposition, export and carbon storage), and its ecological implications, vary across meadow development. Here we examine the fate of production of the seagrass Cymodocea nodosa (Ucria) Ascherson across increasing stages of meadow formation in a Spanish Mediterranean coastal lagoon, Alfacs Bay. Differences in time elapsed since seagrass establishment explained only a modest fraction of the variability in the fate of production, with most production routes ranging over 1 order of magnitude for any given time. However, on the whole, leaf consumption by herbivores increased by 5-fold, and decomposition and export of detrital leaves by almost 2-fold from young (i.e. 0 to 2 yr since seagrass establishment) to old (i.e. 5 to 7 yr since establishment) stages of meadow formation. Below-ground decomposition also increased by almost 1 order of magnitude from young to old stages. These results indicate that longer-established C. nodosa patches transfer greater fluxes of production to consumers, and should thus support greater levels of secondary production. Moreover, seagrass biomass and detritus increased by 3-fold from young to old stages, showing that longer-established patches may act as greater sinks of organic carbon. These results suggest that generalizations about the extent of carbon storage and secondary production maintained by seagrasses must consider the stage of meadow formation typically exhibited by the species concerned.

show abstract

“…Apart from work on coralline red algae like those of the reef front (Marsh, 1970;Littler, 1973;Smith and Marsh, 1973;Connor and Adey, 1977), our measurements of the productivity of macrophytes of reefs seem to be confined to a few on sea grasses (Odum, 1957;Westlake, 1963;Qasim and Bhattathiri, 1971;Patriquin, 1973, and a few on Holimeda and other Caulerpales (Gessner and Hammer, 1960;Drew, 1966;Drew and Larkum, 1968;Johnston and Cook, 1968;Johnston, 1969;Hillis-Colinvaux, 1974). Yet it obviously is necessary that we master the contribution of the calcareous green plants to both the energy and carbonate fluxes of reef systems.…”

Section: Productivitymentioning

confidence: 99%

Advances in Marine Biology. Volume 5

Hillis-Colinvaux¹

2021

View full text Add to dashboard Cite

Authentic additions to the Halimeda species list had to await the work of naturalists and collectors in areas remote from European centres of learning.All references to Halimedae in the seventeenth century, therefore, are to this one species, H. tuna, but it is heard of with many different names. Clusius (1601) called it Lichen marinus. Parkinson (1640) named it Opuntia marina. And in their catalogue of 1651 Bauhin and Cherler listed both these names, as well as introducing two more, Fucus folio rotunda and Scutellaria sive Opuntia marina. But all are the same plant.

show abstract

Die Primärproduktion in mediterranen Caulerpa-Cymodocea -Wiesen Aus der Station Zoologique Villefranche sur mer

Cited by 29 publications

References 0 publications

Primary production of Cymodocea nodosa in the Gulf of Trieste (Northern Adriatic Sea): a comparison of methods

Primary production of Cymodocea nodosa in the Gulf of Trieste (Northern Adriatic Sea): a comparison of methods

Fate of production of the seagrass Cymodocea nodosa in different stages of meadow formation

Advances in Marine Biology. Volume 5

Contact Info

Product

Resources

About