| This production increase suggests that a shift in the trophic status of the river from oligotrophy to eutrophy accompanied development of New Bedford's commercial economy. |
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| The Mediterranean Sea is a semi-enclosed area with pronounced oligotrophy in the surface waters due to small amounts of nutrient discharge from the land. |
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| Oligotrophy, the obligate or facultative capacity to live in low-nutrient habitats, has played a major role in the evolution of photosynthetic organisms. |
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| Oligotrophy and nitrogen fixation during Eastern Mediterranean sapropel events. |
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