What is a “low trophic” fish and why are they important?

In layman’s terms, “Low Trophic” means an organism is low on the food chain. FisheriesFishery scientist Daniel Pauly has set the values of trophic levels from 2 to 5 for different species based on what food they eat and at what trophic level their that food is classified. For example, predatory species that mostly eat other predatory species (like such as killer whales) are on the top of the food chain and thus have a high trophic rating score. Species that eat mostly plants (like such as carp) would be at a lower level. Species that eat mainly plankton or algae (like such as oysters) would be even lower.

The mean trophic levels of the fish being caught commercially around the world has been in steady decline for decades. This is because high trophic fish like tuna, cod, salmon, and swordfish are highly prized and, in turnbecause of this, have been overfished. One way to take pressure off high trophic fish stocks without reducing overall global seafood consumption is to shift global consumption habits to include more low trophic fish species. This is important to tropical aquaculture since it is ideally suited for the sustainable cultivation of low-trophic species, such as pangasius.

One of the challenges faced by the aquaculture industry is to educate the public about responsible aquaculture and to help generate demand for farmed species of low.trophic fish. At the same time, the aquaculture producers must keep up withon top of consumer trends and market demands to ensure that they are able to offer relevant products that meet worldwide consumer expectations. This is an important part of the guidance that Vinh Aquaculture offers its clients.

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