But in 2003, an agent got wind of just how many fish were being poached.
Although the vast majority of modern reptiles and amphibians are carnivores, many fish are herbivores.
The high prices are attracting poachers, Stehr and other tuna men say, but no one has hard figures on how many fish are being caught illegally.
You will notice I am pescatarian (I eat fish infrequently but not other meat), and though many fish dishes are not on my list, if I had the palate for them, I might eat them too.
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On Thursday, the agency's fisheries and ecology team isolated a 100m area of the river next to Ravensbury Park in Merton and used equipment which generated low voltage electric currents to check how many fish survived.
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Kenny Yap was away at Ohio State University in the U.S. then, but returned in a few years with a formal knowledge of business and management--and a desire to make good on the sacrifice of so many fish.
The Maryland researchers concluded that while many fish launch out of the water into the air to capture prey, migrate, or avoid predators, the guppies have a different evolutionary motive: to reach all the available habitat in Trinidad's mountain streams.
For starters, the World Wildlife Fund (WWF) says the global fishing fleet is 2.5 times bigger than "what the oceans can sustainably support" - i.e. there are too many boats catching too many fish, and not giving fish stocks enough time to replenish them.
Snapper, grouper, amberjack and many other fish join the list before the season winds down in the fall.
Scientists believe warmer waters have depleted plankton stocks, which form the basis of food for many such fish.
Sea turtles, elephant seals and many other fish, including eels, tuna and sturgeon, have a similar migratory strategy, he added.
Even so, for safety reasons, their dives were strictly time-limited, and each sortie saw a quick scramble to net as many different fish as possible before the required slow ascent to the surface.
Fishing is the main economic activity along the coast but ask the fishermen how the work is going and many complain fish stocks are dwindling partly because of the activities of local and foreign trawlers.
This changes the reef into an entirely new type of ecosystem whose habitat is no longer suitable for many of the fish that once inhabited it.
With more energy than expertise, the Yaps suffered many disasters--the most devastating in 1989 when flooding flushed many thousands of fish out of their ponds and sent them squiggling toward the Straits of Johor.
Since then, Hurd's HP has focused on smaller fish, many of them supplementing HP's lucrative software business.
These deepwater ecosystems have important connections to other parts of the Gulf ecosystem, including many commercially-important fish species.
For many English people, fish and chips are best served wrapped in newspaper and devoured with a combination of a two-pronged wooden fork and greasy fingers, preferably seaside.
When I was in VISTA, I used to consider how many cans of tuna fish I had to be a significant portion of my net worth.
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These calcified deposits can grow to enormous sizes over long periods of time and form coral reefs -- one of the world's most productive ecosystems, which can harbor more than 4, 000 species of fish and many other marine life forms.
But for the time being, the problem remains too many trawlers chasing too few fish.
Now mosquitoes have become resistant to many of these chemicals and fish are back on the menu.
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Too many of us are still fish out of water when it comes to landing big clients and bringing in business.
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These are home to many species of birds and fish, some endangered.
He had done many things, including selling fish, trading clothes and running a restaurant, before he opened his first foot massage business in Henan.
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Many of the birds, fish and animals that consume this water, depending on the amount of hazardous chemicals leaked into the pond or stream they drink from, will die quickly or slowly.
If a break from the water is what you're after, the hotel is near a golf course and within walking distance of Lagos' historic city center, where you can settle in on one of its many restaurant patios for fresh fish.
They expanded into many business areas including mining, fish products, agriculture and cement.
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