Furthermore, ExxonMobil’s decades-long history of sowing climate misinformation raises serious questions about its motivations in promoting algae biofuels as a climate solution. 8. If toxic algae touches your skin, or you accidentally inhale or swallow water containing the toxin during recreation, you could get a rash or an allergic reaction, or develop gastrointestinal problems. Blue-green algae are well adapted to growth and persistence in nutrient-rich lakes, reservoirs and ponds. Blue-green algae blooms can persist for several weeks, and can occur more than once per year. There are two primary ways that algae reproduce. Short Answer Type Questions. The Phaeophyceae group or the brown algae has mannitol as the reserve food material. Hair Algae A number of things, stagnant water movement, high temperatures, and/or an influx of nutrient material, such as lawn fertilizers, could have contributed to the explosive growth of algae … On August 28, 2009, Kris Niyogi answered selected viewer questions about algae, biofuel, and more. Next, let’s see some algae prevention tips that can minimize the appearance or overgrowth of algae. Just remember that there are no quick fixes – BBA can take six to eight months to get established, so expect it to take at least that long to get rid of. ^ Top of Page. Why do blue-green algae blooms occur? Note that there is a generative phase and a vegetative phase. The right-side picture below shows Brookmill Park Lake again, 11 months later in September 2009. Unfortunately, common algae eaters find Staghorn Algae unappealing, so these are the only methods to get rid of it. 1. 10.3 Algae Growth and Reaction Conditions. A.1. During the generative phase, cysts are freed. Blue‐Green Algae Questions and Answers. weight of the algae grown would be 2.75 grams (3 g – 0.25 g = 2.75 g). Some algae are unicellular and demonstrate the simplest possible life cycles (see Figure 10.6a). If you are unsure of when to add nutrients or how much to add, consult an algaculture specialist. Common Names: Carpet Algae / Hair Algae / String Algae / Spirogyra / Water Silk; Description: Long, thin, hair-like strands of algae that can combine to form mats Where/how it grows: Anchors to the bottom of a pond or structures like rocks or waterfalls before floating to the surface in large mats Region/Climate: Prefers fresh, clean water and cooler temperatures Q.2. The Important Questions for Class 11 Biology Plant Kingdom are given below. When algae grow so thick and make water look like “pea soup”, the condition ... What happens if I come into contact with blue-green algae? Part 2: Find the concentration of algae per liter. If there are questions about whether the lake is closed, look at the current watch/warnings tab on this website, consult individual lake websites or call lake management offices for additional information. [11] The dying algae turns red or clear, and animals may eat it in its weakened state. 7. These will provide a better understanding of the concepts. Divide the dry weight of your algae (in grams) by the volume (in ml) of algae water you collected in your cup, and multiply that by the number by 1,000 ml. How long will a blue-green algae bloom last? Tips to Prevent Algae Growth Q.1. If you are growing algae on a long term basis, you will need to add nutrients with each new batch of algae. Which group of algae has mannitol as the reserve food material? The total dry weight yield of the algae would be 2.75 grams. The long-term effects of these exposures are not well known, but children and pets are at greatest risk. Name the plants with This concludes my presentation on the most common algae types and their causes. ... exposure to low levels of toxins could have long-term or chronic effects in humans. You also might need to add nutrients as the algae population grows.
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