primary productivity in polar oceans is quizlet

31 233) Productivity in polar oceans is _____. 276) ____ A) photosynthetic bacteria B) phytoplankton C) dinoflagellate D) primary E) zooplankton 277) Productivity is limited by _____ in polar regions and by _____ in the low-latitude tropics. primary productivity in the Arctic Ocean. -They are the primary competitor of krill for phytoplankton, but cannot feed on ice algae. “Net primary production” Primary productivity process will also require carbon dioxide besides oxygen during the night. 71) Productivity in polar oceans is: A) light-limited. Start studying Productivity in the Ocean. Polar oceans belong to the most productive marine ecosystems. C) oxygen-limited. Summarise the main biological differences between the Antarctic and Arctic. True Nutrients can be either an elements or compounds and two important ions in the Ocean are NO2-, and PO43-? B- Some whales, including blue whales, migrate long distances to feed in polar seas during the polar summer. Kelp are considered _____ algae. PLAY. In this lecture you have the opportunity to explore a number of examples of how ocean productivity varies. This means that there is a peak in primary productivity between spring and summer and a dip during autumn and winter when productivity is light-limited. Choose from 156 different sets of productivity ocean flashcards on Quizlet. Describe how productive Antarctic sea ice is. excess nutrients causing a bloom that uses up oxygen and creates a dead zone, a microorganism, especially bacteria, that causes fermentation/ disease, only spend part of their lives suspended in water column. -Diatom Neodenticula seminae (dominant primary producer in the North Pacific). Primary productivity is strongly dependent upon light availability and the presence of nutrients, and thus is highly seasonal in the Arctic region. Iron, released through fertilization, increases photosynthesis in phytoplankton, which bury CO2 via the biological pump process. A- Polar ocean waters have a strong thermocline. Without plants, means there will be no primary productivity that can help to produce oxygen. - In polar oceans, productivity is high year-round. Plants through the primary productivity actually help the environment to maintain nearly all gases in the ocean such as carbon dioxide. https://quizlet.com/275652110/midterm-4-chapter-13-flash-cards Total net primary production on Earth exceeds 100 billion tons of carbon per year, and it plays a profound role in the global carbon cycle. A) coastal upwelling zones B) coral reefs C) equatorial upwelling zones D) mangrove swamps E) All of the above tropical areas have relatively high primary productivity. E) nutrient and oxygen-limited. How might ocean fertilization help remove CO2 from our atmosphere? 7.4 Patterns of Primary Production Primary productivity varies both geographically and seasonally. Nearly all of Earth’s primary productivity is … Too many "grazers" 16) Of the following statements about oceanic productivity in polar regions, which is/are true? O Light And Nutrient-limited. In both coastal and open-ocean regions, physical-chemical conditions dictate biological productivity and its distribution, … The poles (in the summer), since there is very cold water, so no thermocline, and light. Describe the effects of ice scours on benthos. Describe how salps could take over from Antarctic krill at the base of the food web. What is the depth of the photic zone determined by? O Oxygen-limited. Variation in primary productivity, measured typically as the concentration of chlorophyll in water, is a primary determinant of all biological productivity up the food web and trophic pyramid. What is the significance of ocean stratification in relation to primary production? Describe how primary productivity in the polar oceans is light-limited. Because they are used immediately and usually sink when in a dead organism or as waste, -oil floats (oil is less dense than water). -About 5% of total Antarctic primary productivity takes place within sea ice. A) coastal upwelling zones B) coral reefs C) equatorial upwelling zones D) mangrove swamps E) All of the above tropical areas have relatively high primary productivity. Why Primary Productivity Varies Among Polar, Tropical, and Temperate Oceans We have made quite a journey through our walk through productivity in our oceans. Open oceans produce the largest share of Earth's biomass because the net primary productivity (NPP) of the oceans is Low, but the large expanse of the oceans supports enormous numbers of producers such as phytoplankton The sun's radiation provides the energy for all of the following EXCEPT Plate Tectonics zone where light does not penetrate (about 90% of the ocean), to create DNA, RNA, proteins—to keep themselves together, not biologically "useful" by all organisms, in a form that all organisms can use to make biomolecules and/ or power cells, special organisms (mostly bacteria) that convert inorganic nitrogen to organic nitrogen. When is there a great phytoplankton bloom (in temperate seas)? Describe the importance of Antarctic krill. 15) Summer productivity in temperate waters typically is hampered by _____. plants are _____ producers. Photosynthesis requires photosynthetic organisms, light, carbon Lesson Plan 15 Being Productive in the Arctic Ocean. Lecture 7 – Life in the Ocean – Primary Productivity and Respiration Life determines ocean chemistry and responds to it. 71) Productivity in polar oceans is: A) light-limited. This is of considerable significance regionally, but still does not, of itself, imply that global phytoplankton production is underestimated at present. 233) ____ 234) Productivity in tropical oceans is generally _____. All the above tropical areas have relatively high primary productivity. Why is it beneficial for benthic invertebrates to have a planktonic larval stage? C-Primary productivity in polar seas reaches high levels during the polar summer. Primary production is the production of chemical energy in organic compounds by living organisms.The main source of this energy is sunlight but a minute fraction of primary production is driven by lithotrophic organisms using the chemical energy of inorganic molecules.. Primary producers of polar oceans Phytoplankton composed mainly by diatoms, haptophytes (coccolithophores), dinoflagellates and cyanobacteria. Sample Day #4: Primary Productivity is lowest yet, Calculating primary productivity. It is not possible to understand the composition of seawater (or marine sediments) without understanding life processes. D) light and nutrient-limited. Describe the physical characteristics of the Southern Ocean, -A circumpolar ocean surrounding a large continent, -Sea ice (pack ice)- formed from saltwater- freezing onto base of pack ice. primary. C) oxygen-limited. blown in from areas that support primary production. After all, another importance of primary productivity in ocean is to maintain the diversity in the ocean to still exist. A Brief Summary of Primary Productivity in Polar, Temperate, and Tropical Oceans. The new figure is some sixteen times higher than an estimate made in 1975. In the polar oceans, phytoplankton blooms (explosive population growth) occur during the summer months as a result of favorable light conditions which lead to short-term increased primary productivity. ocean productivity are revealed by the following defi-nitions (Bender et al. Describe how primary productivity in the polar oceans is light-limited. In the polar oceans, phytoplankton blooms (explosive population growth) occur during the summer months as a result of favorable light conditions which lead to short-term increased primary productivity. Strong stratification creates a strong thermocline, which disables nutrients that have sunk to the bottom to come back. Equations. This means that there is a peak in primary productivity between spring and summer and a dip during autumn and winter when productivity is light-limited. -Arctic Ocean is an almost enclosed sea surrounded by land. In the ocean, autotrophs which are responsible for primary production consist of phytoplankton, marine plants, and macroalgae since they all perform photosynthesis. - In polar oceans, nutrient concentrations are usually adequate and do NOT limit productivity. What primary productivity in polar regions actually looks like… Phytoplankton Figure 13.19a, page 421Zooplankton. -Icebergs or pack ice scrape along benthic surface, Also known as 'sea ice factories', they are areas of open water surrounded by sea ice. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 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primary productivity in polar oceans is quizlet 2021