Filamentous algae

Roach (rutilus rutilus), a medium-sized cyprinid fish, is a planktonic and benthic species, feeding mainly on cladocerans (D. longispina), detritus, plant debris, amphipods (Echinogammarus sp.), filamentous algae, and ostracods. Roach can thrive on poor quality, even polluted water and displays more capacity of adaptation to different kinds of food than rudd [62]. 

Filamentous algae, unidentified 500 pg/L 5-month exposure Effective control 9 ... 

Filamentous algae (Chara sp., Enteromorpha sp.) 50-100 Lethal in 30 days in outdoor ponds decay was responsible for depression of dissolved oxygen and later fish deaths 2... 

Algae, whole Higher plants Aquatic mosses Filamentous algae Se-contaminated area Control area Rooted plants Se-contaminated area Control area... 

Unsuccessful in controlling emergent aquatic weeds successful in eliminating filamentous algae and most submerged species... 

Organic carbon profiles (Figure 4F) in all three subenvironments show the same decreasing profile with depth (13). The evaporative panne (core 1) contain the highest amounts of organic carbon which corresponds to an abundance of Spartina roots and filamentous algae visible in hand specimen. 

An effect of acid rain in streams is to increase the amount of filamentous algae. It is doubtful, however, that it is a case of direct action resulting from the composition of the water, rather than being due to a decrease in herbivorous animals. As acidification increases, the number of animal species in the water decreases. There is a sharp reduction in herbivorous insects, while in the case of carnivorous insects no such dramatic result can be seen. 

Pihl, L., Isaksson, I., Wennhage, H., andMoksnes, P. O. (1995). Recent increases of filamentous algae in shallow Swedish Bays Effects on the community structure of epibenthic fauna and fish. Netherlands J. Aquat. Ecol. 29, 349—358. 

When filamentous algae or molds are to be examined, the material tends to cling together and must be carefully separated, in the drop of water, with dissection needles before the cover glass is placed over the material. In case a coarse ground drug is to be mounted the coarser particles should be first crushed in the water on the slide and subsequently teased apart with dissection needles. 

Sand flats (some filamentous algae and sparse 75 (25%) 117 (25%) -42... 

The blue-green filamentous algae Spirulina platensis also inhibited HIV-1 replication in human T-cell lines, peripheral mononuclear blood cells and Langerhans cells [16]. The extract inactivated HIV-1 infectivity directly when preincubated with the virus before addition to human T-cell lines. These data indicate that aqueous Spirulina platensis extract contains antiretroviral activity that may be of potential clinical interest. Antiviral activities were also reported from the water-soluble fraction of the marine diatom Haslea ostrearia, which delayed HIV-1-induced sincytia formation on MT-4 cells [17]. 

Jansson and Kautsky (1977) reported that Fucus vesiculosus had disappeared from locations close to the mainland at more seaward locations the stands shrinked since 1974/ 1975. Later studies showed that this trend was continued at least until the mid 1990s (for overview see Kaustky, 1999). This decline was accompanied by a change in the proportion between annual filamentous algae and perennial algae, increasing in time and decreasing with distance from the mainland (Kautsky, 1999). 

For open sites in the Baltic proper region, the decline of EwcM -stands, accompanied by a simultaneous increase of filamentous algae, was reported from the islands of Gotland by Jansson (1984), the Kalmar region (Kautsky, 1999), and the Blekinge coast (Malm et al., 2001). In all cases, depth distribution moved upwards and, in several cases, Fucus even disappeared from the sites (Kautsky, 1999). 

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