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Algae and Phycology

Algae is a group of aquatic plants. They are considered simple due to the fact that they do not grow into distinct parts, like land plants. Seaweed is a type of algae. Phycology is the study of algae.

560 Questions

Why are algae important for fish that do not eat algae?

Algae, like all other plants, provides oxygen. All living things, including fish, need oxygen to survive. In the process of photosynthesis, the plant takes in carbon dioxide and gives off oxygen. Algae and all other plants are vital to the well being of the water ecosystem.

Is algae an example of saprophyte?

No, algae are not saprophytes. Algae are photosynthetic organisms that produce their own food using sunlight and carbon dioxide. Saprophytes are organisms that obtain nutrients by decomposing dead organic matter.

What are four body forms of algae?

  1. Unicellular: Algae like Chlorella are single-celled organisms.
  2. Colonial: Algae such as Volvox form colonies of cells.
  3. Filamentous: Algae like Spirogyra form long chains of cells.
  4. Thalloid: Algae such as kelp have a plant-like body structure with differentiated tissues.

What are home remedies to kill algae in ingroud pools?

Chlorine bleach kills algae. That's why chlorine is used in swimming pools. Be careful when using chorine bleach. It should not be mixed with other cleaners. Use it in a well ventilated area. It is very powerful and should be diluted.

Does algae feed by sunlight?

Algae are unicellular plants- and so they make their own food by photosynthesis. i won't highlight all the biochemistry in detail, but the following equation sums up the reaction:

6H2O + 6CO2 (+ Sunlight) = 6O2 + C6H12O6

The equation above states that water and carbon dioxide are converted into glucose( the plant's food) and oxygen as a waste product- using light energy to drive the reaction.

What are the most important differences among the three phyla of multicellular algae?

The three main phyla of multicellular algae are Chlorophyta (green algae), Phaeophyta (brown algae), and Rhodophyta (red algae). They differ in terms of photosynthetic pigments, cell wall composition, and storage polysaccharides. Chlorophyta have chlorophyll a and b, with cellulose cell walls and starch reserves. Phaeophyta have chlorophyll a and c, with algin and cellulose cell walls and laminarin reserves. Rhodophyta have chlorophyll a and phycobiliproteins, with cellulose cell walls and floridean starch reserves.

What part of the large algae that takes the place of roots and anchors to the ocean floors?

Holdfasts are the structures in large algae that take the place of roots. These holdfasts anchor the algae to the ocean floor, providing stability and allowing the algae to withstand ocean currents and waves.

How long does brown algae take reproduce?

Brown algae reproduce through spores or fragmentation, with the time it takes to reproduce varying among different species. In general, brown algae can reproduce relatively quickly compared to other organisms, with some species capable of producing spores within a few weeks under favorable conditions.

Why are algae called thallophytes?

Algae are called thallophytes because they are simple, plant-like organisms that lack true roots, stems, or leaves. Thallophytes have a body plan known as a thallus, which is a undifferentiated structure that lacks specialized tissues. Algae exhibit this structure, hence the classification as thallophytes.

What food contain green algae?

Only some healthfood supplements. Green algae (or any type of algae, for that matter) is not commonly added to foodstuffs and does not occur naturally in many foodstuffs either. Sushi or sashimi does not contain algae - it contains nori seaweed.

Which is a possible reason for the transition of algae from unicellularity to multicellularity?

One possible reason for algae transitioning from unicellularity to multicellularity is to increase their overall size and surface area, which can enhance their ability to absorb nutrients and photosynthesize more efficiently. Multicellularity may also provide algae with better protection against predators and adverse environmental conditions, as well as improve their reproductive strategies through enhanced dispersal and reproduction.

Do blue green algae need the sun?

No. Only animals need sun. Animals have a process called hydrosynthesis, which is using the sun's luminosity to digest water.

Do diatoms have a radial or radial and bilateral symmetry?

Diatoms have radial symmetry, meaning they are symmetrical around a central axis or point.

What do you do if there is not enough algae in your fish tank for your algae eater to eat?

This is a good problem to have. Most algae eaters enjoy munching on green algae. It forms a green powder like look on the glass or plants of an aquarium in high quantities. If your aquarium does not have any signs of algae you have some options:

Feed them Algae Wafers

This is found at a local fish store. They can be added to the water without fear of algae spreading. Some fish enjoy eating them and some seem to not like them.

Feed them Zucchini, not Cucumbers

If your fish don't eat algae wafers they might not be hungry due to feeding on something you don't see them eat. If you believe them to be picky you can entice them to eat and grow faster by blanching Zucchini and cut it into small sizes then add it to the tank. Rubber band it to something that sinks or poke it through with a BBQ skewer and stick it in the substrate. Don't leave it in the tank for more than 24 hours. Fish will not eat the skin.

Feeding Schedule

Algae eaters can survive on as little as 2 - 3 times a week feeding schedule. I feed my algae eaters once a week because there is plenty of micro algae that is unseen for them to much on. It depends on the species.

Blue Green Algae

Fish do not eat blue green algae. Almost nothing does. It looks like a blue green slime coating on rocks and plants and is a sign of bad water quality. It is actually a bacteria that uses encapsulated photosynthesizing algae to endure in harsh environments. Caused mainly by too much phosphates and not enough nitrates. Lighting may be a factor as well.

What is the lifespan of an algae eater?

Algae eaters typically live for 5-10 years, but their lifespan can vary depending on factors such as water quality, diet, and tank conditions. Proper care and a suitable environment can help maximize their lifespan.

Do algae have nucleus?

In present classification all algae contain nucleus . In classical classification algae were of two types . 1 Blue green algae lack nucleus and 2 all other algae are eukaryotic and possess nuclei .

Are red algae and red marine algae the same?

Yes, red algae and red marine algae refer to the same group of algae that are predominantly found in marine environments. They are known for their red pigmentation due to the presence of phycoerythrin pigments.

What are some products that contain algae?

Some organisms have algae living symbiotically inside them such as Parmecium bursaria and coral.

Many food products contain materials derived from algae such as carrageenan, beta carotene, agar, and alginate. These chemicals are commonly used in ice cream, beer, toothpaste, gel candies, shampoo, soy milk, pet foods, and a gamut of other products.

What are the physical characteristics of spirulina?

Spirulina is a type of blue-green algae that typically appears as a greenish-blue color. It has a spiral shape, hence its name, and is usually found in powder or tablet form. Spirulina can also have a slightly fishy or seaweed-like smell.

Why cant you get rid of floating green algae in your fish tank?

Floating green algae can be difficult to get rid of because it thrives in nutrient-rich water with excess light. To control it, you can reduce feeding, decrease light exposure, and increase water changes to help keep nutrient levels in check. Additionally, adding algae-eating fish or invertebrates can help consume the algae and prevent it from spreading.

What is an immediate increase in the amount of algae and other producers that result from a large input of a limiting nutrient?

This is known as an algal bloom. The sudden increase in nutrients like nitrogen or phosphorus can lead to rapid growth of algae, which can create harmful effects in aquatic ecosystems such as depleting oxygen levels and harming other organisms.

What compounds do many algae have to help them absorb light at different wavelenghts?

Many algae contain pigments such as chlorophyll a, chlorophyll b, carotenoids, and phycobilins to absorb light at different wavelengths. These compounds allow algae to capture light energy for photosynthesis efficiently across a broad spectrum of light wavelengths in the aquatic environment.

What important ecological role is shared by the macroscopic algae?

Macroscopic algae is better known as seaweed. An important ecological role that is shared by macroscopic algae is that it helps to clean the sea, prevents erosion and it serves as a food for fish and plankton.

What is algae that is golden and brown and secrete glasslike boxes around themselves are?

The algae you are describing are called diatoms. These single-celled organisms have a golden-brown color due to their pigment and secrete glass-like silica boxes around themselves called frustules, which provide protection and structure. Diatoms are important primary producers in aquatic ecosystems and play a crucial role in the food chain.

What cause the fire algae to be very important and what substance it contains?

Fire algae, such as Pyrocystis fusiformis, are important as they produce bioluminescence, which is the ability to emit light. This property makes them valuable for scientific research, artistic purposes, and tourism. They contain luciferin and luciferase, two substances responsible for their bioluminescent capabilities.