Fishing down the food web
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Fishing down the food web is the process whereby fisheries in a given ecosystem, "having depleted the large predatory fish on top of the food web, turn to increasingly smaller species, finally ending
Fishing down the food web
The mean trophic level of the world fisheries catch has steadily declined because many high trophic level fish, such as this tuna, have been overfished.
Fishermen are increasingly targeting lower trophic level fish, like these anchovies and other forage fish.
According to Daniel Pauly, if the trend continues, consumers may be eating jellyfish sandwiches.
Marine ecosystem
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Marine ecosystems are the largest of Earth's aquatic ecosystems and exist in waters that have a high salt content. These systems contrast with freshwater ecosystems, which have a lower salt content. M
Coral reefs form complex marine ecosystems with tremendous biodiversity.
Coral reef
Mangrove forests
Seagrass meadow