Algal Species Diversity from the Everglades (Florida, USA)

2010 ◽  
Vol 12 (4) ◽  
pp. 357-404
Author(s):  
T. E. Smith
Keyword(s):  
Species Diversity ◽  
Algal Species

Algal species diversity of arid region lakes in Kazakhstan and Israel

2009 ◽  
Vol 10 (1) ◽  
pp. 7-16 ◽  
Author(s):  
S. Barinova ◽  
T. Bragina ◽  
E. Nevo
Keyword(s):  
Species Diversity ◽  
Arid Region ◽  
Algal Species

The algal microflora of a string mire in relation to the chemical composition of water

1973 ◽  
Vol 51 (4) ◽  
pp. 743-749 ◽  
Author(s):  
T. Flensburg ◽  
J. H. Sparling
Keyword(s):  
Chemical Composition ◽  
Species Diversity ◽  
Water Flow ◽  
Algal Species ◽  
Chemical Composition Of Water ◽  
Bog Lakes ◽  
Flow Through

Twenty-one samples were examined for algal species diversity. Samples contained between one and 35 species with a mean of 10.6 species per sample. The greatest diversity of species occurred in samples collected from large flarks or bog lakes. Hummock communities, especially those with abundant Sphagnum rubellum contained fewest algae. All samples showed a predominance of Desmidiales.General ionic levels in the string mire were low; however, species of the genera Euastrum, Micrasterias, and Staurastrum occurred frequently in the sites richer in nutrients. More species were found in wetter than in drier sites.The presence of species characteristic of more base-rich conditions may be related to the rate of water flow through the mire.

Intertidal algal species diversity and the effect of pollution

1972 ◽  
Vol 23 (2) ◽  
pp. 73 ◽  
Author(s):  
MA Borowitzka
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
New South ◽  
New South Wales ◽  
Algal Species ◽  
Maximum Value ◽  
South Wales

The species diversity of the larger intertidal algae was determined at three sites along the coastline of Sydney, New South Wales. The changes in species diversity and species composition were correlated with height from mean of low water (MLW), distance from the edge of the rock platform at MLW, and distance from a sewer outfall (i.e. the degree of pollution). The total number of algal species was reduced in the vicinity of the outfall. This reduction was most evident in the Phaeophyceae and the Rhodophyceae. The maximum value of algal species diversity was also reduced at higher levels above MLW, away from the edge of the platform and near the outfalls.

Effect of habitat type on algal species diversity and distribution at high altitudes

2020 ◽  
Author(s):  
Nurhayat Dalkıran ◽  
Okan Külköylüoğlu ◽  
Şükran Dere ◽  
Didem Karacaoğlu ◽  
Enis Akay ◽  
...  
Keyword(s):  
Species Diversity ◽  
Algal Species ◽  
Habitat Type ◽  
High Altitudes

Checklist of the marine flora of Nha Trang Bay (Vietnam, South China Sea) and decadal changes in the species diversity composition between 1953 and 2010

2015 ◽  
Vol 58 (5) ◽  
Author(s):  
Eduard A. Titlyanov ◽  
Tamara V. Titlyanova ◽  
Oksana S. Belous
Keyword(s):  
Species Diversity ◽  
Algal Species ◽  
Floristic Composition ◽  
Polluted Water ◽  
Number Of Species ◽  
Green Algal ◽  
Inorganic Substances ◽  
Nha Trang Bay ◽  
History Of ◽  
Green Algal Species

AbstractThe first complete checklist of the intertidal and subtidal marine algae (Rhodophyta, Chlorophyta and Ochrophyta) of Nha Trang Bay (Vietnam) is presented. A brief history of the species records in the bay between 1953 and 2010 is documented. A total of 481 macroalgal taxa and their forms have been found, including 275 red (57%), 121 green (25%) and 85 brown (18%) algal taxa. The data, analyzed in terms of time period, revealed shifts in the number of species in most of the taxonomic families. However, the most interesting differences between the time periods occurred in the overall algal species diversity and in the floristic ratios (red: brown: green algae). The collections sampled in 1953–1968 and those in 1982–1987 did not change significantly in either species diversity or floristic composition, but a comparison of the collections from 1953 to 1987 and from 2002 to 2010 revealed substantial differences. In 2002–2010, the absolute and relative numbers of green algal species increased while those of red and brown algal species decreased. Our background data indicate that this change is likely due to increasing seawater pollution caused by dissolved organic and inorganic substances. The increase in the number of green algal species is due primarily to the greater number of species in the Caulerpaceae, Ulvaceae and Cladophoraceae, all families that thrive in polluted water.

Algal-induced dislodgement as a cause of bivalve mortality on some Scottish beaches

1988 ◽  
Vol 68 (2) ◽  
pp. 219-233 ◽  
Author(s):  
A. D. Ansell ◽  
L. Robb ◽  
H. T. Powell
Keyword(s):  
Species Diversity ◽  
Dominant Species ◽  
Sandy Beach ◽  
East Coast ◽  
Algal Species ◽  
Older Individuals ◽  
Attached Algae ◽  
Large Numbers ◽  
Outer Hebrides ◽  
Three Stages

During July 1984, large numbers of the sandy beach bivalve Donax vittatus (da Costa) were found either stranded in the intertidal, or washing to and fro in the surf on beaches at Dornoch, on the east coast of Scotland. The affected bivalves all carried large growths of several species of algae. The normal burrowing and recovery responses of the bivalves were unable to overcome the increased drag resulting from these epizoic algal colonies so that wave action caused dislodgement from the sand and eventually, stranding and death from dehydration. The resulting mortality affected mainly older individuals in the population; younger individuals had very small or no attached algae and were not dislodged.The algal growths were complex and showed three stages in their development: primary settlements formed generally short tufts or mats attached to the posterior tip of die shell; secondary ‘dominant’ species were also attached to die shell but formed larger growths; tertiary species were attached as epiphytes to the primary and secondary growths. At least eight species of algae were involved. Juvenile mussels (Mytilus edulis L.) were also present in many cases attached to the weed, adding further to die drag.During 1985, at Dornoch, secondary and tertiary algal species developed progressively from overwintering primary settlements, but the size of die algal colonies which developed was generally smaller dian in 1984 and diere was apparently little dislodgement and mortality.Donax vittatus populations on other beaches in die Moray Firdi, and on most other Scottish beaches examined, had fewer individuals with attached algae, and diose affected carried only relatively small colonies which did not prevent normal burrowing. Complex algal colonies, showing even greater species diversity than those of Dornoch were, however, found on D. vittatus on beaches in South Harris, Outer Hebrides, during September 1984.

STRUKTUR KOMUNITAS MAKRO ALGA DI PESISIR PULAU KECAMATAN BULANG

SIMBIOSA ◽  
2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Notowinarto Notowinarto ◽  
Ramses Ramses ◽  
Mulhairi Mulhairi
Keyword(s):  
Community Structure ◽  
Diversity Index ◽  
Algal Species ◽  
Algal Communities ◽  
Marine Life ◽  
Ph Values ◽  
Abundance Patterns ◽  
Coastal Marine ◽  
Temperature Parameter ◽  
Important Value Index

Bulang districts Batam Islands of  Riau province (Riau Islands), its consists of many islands with as well as having the potential diversity of coastal marine life in particular kinds of macro algae or seaweed. Conducted research aimed to determine the structure of macro- algal communities in the intertidal zone islands. The results of the identification of algal species found 16 species are: the Order of Chlorophyceae as 6 spesies; Order Phaeophyceae as 2 spesies; and Order Rhodophyceae as 8 spesies. The community structure at the five stations showed the highest values were found in the island of dominance Cicir (D ' = 0.79) , uniformity index values on Tengah Island (E ' = 0.99) , while the island Balak had the highest diversity index (H ' = 0.88) , with the abundance patterns of population structure on the island is pretty good Central . Results of correlation analysis of regression between IVI types of algae with the conditions of environmental quality suggests that there is a significance (Fhit ˃ F table and the value of r = > 90 %) between IVI algae Halimeda sp and Cryptarachne polyglandulosa at each station with a temperature parameter surface (⁰C) , depth temperature (⁰C) and pH values. Keywords : Algae, Community Structure, Important Value Index.

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