Temperature plays a crucial role in influencing ocean productivity, which refers to the ability of marine ecosystems to produce organic matter through photosynthesis (primary production) and support various forms of life.

Here's how temperature affects ocean productivity:

Now, let's discuss regions of high and low ocean productivity:

High-Productivity Regions:

Low-Productivity Regions:

It's important to note that ocean productivity is influenced by various factors, including temperature, nutrient availability, light, and ocean currents. Changes in global climate patterns, such as El Niño and La Niña events, can also significantly impact ocean productivity by altering temperature and nutrient distribution.

Dr Gaurav H Tandon thank you for your contribution to the discussion

Thermal stratification is a limiting factor of NPP in warming regions, but in regions where surface waters are cooling, the continuous sinking of cooling waters creates a well-mixed layer of nutrient-rich water at the surface, thereby having a positive impact on phytoplankton growth and NPP. Ocean acidification and temperature rise will also affect the productivity and distribution of species within the ocean, threatening fisheries and upsetting marine ecosystems. Loss of sea ice habitats due to warming will severely impact the many polar species that rely on it. Long-term changes in temperature, carbon dioxide content (acidification), oxygen levels, nutrient availability, currents, salinity, and sea-ice extent affect marine life and lead to large-scale shifts in the patterns of marine productivity, biodiversity, community composition, and ecosystem structure. Tropical rainforests have an emergent layer of tall trees over 40 m tall, an over story of trees up to 30 m tall, a sub-canopy layer of trees and tall shrubs, and a ground layer of herbaceous vegetation. Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes. Deserts, tundra and the open ocean are the least productive ecosystems typically having less than 0.5 x 103 kcal. In terrestrial ecosystems the order of productivity in decreasing order is 1. Swamps, marshes, tropical rain forests (most productive), 2. Temperate forest, 3. Northern coniferous forest (taiga). Oceans have very low productivity due to which they contribute very little to the ecosystem. This is because the photosynthesis capacity of plants on land is much greater than that of the sea. This makes a huge difference to productivity on land and at sea. Warm, wet biomes generally have higher net primary productivity than cold, dry biomes. Photosynthesis, cellular respiration. 2. Polar regions of the world have lower primary production than tropical rainforests and temperate forests. Increased ocean acidity makes it more difficult for certain organisms, such as corals and shellfish, to build their skeletons and shells. These effects, in turn, could substantially alter the biodiversity and productivity of ocean ecosystems. Some highly productive areas include the California coast (200-300 g C/m2/year), the Southern Ocean (200-400 g C/m2/year), and the coast of Peru (200-400 g C/m2/year), all regions with significant upwelling. The central ocean, by contrast, produces less than 50 g C/m2/year. About 40 to 85 percent of gross primary productivity is not used during respiration and becomes net primary productivity. The highest net primary productivity in terrestrial environments occurs in swamps and marshes and tropical rainforests; the lowest occurs in deserts.