A tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna (max length: 1.6 ft, weight: 4 lb) up to the Atlantic bluefin tuna (max length: 15 ft, weight: 1,508 lb), which averages 6.6 ft and is believed to live up to 50 years.
Tuna, opah and mackerel sharks are the only species of fish that can maintain a body temperature higher than that of the surrounding water. An active and agile predator, the tuna has a sleek, streamlined body, and is among the fastest-swimming pelagic fish – the yellowfin tuna, for example, is capable of speeds of up to 47 mph. Greatly inflated speeds can be found in early scientific reports and are still widely reported in the popular literature.
Found in warm seas, the tuna is commercially fished extensively as a food fish, and is popular as a bluewater game fish. As a result of over fishing, some tuna species, such as the southern bluefin tuna, are threatened with extinction.
Tunas (from top): albacore, Atlantic bluefin, skipjack, yellowfin, bigeye |
Etymology
The term "tuna" comes from Spanish atún < Andalusian Arabic at-tūn, assimilated from al-tūn التون [Modern Arabic التن] : 'tuna fish' < Middle Latin thunnus. Thunnus is derived from Ancient Greek: θύννος, romanized: thýnnos used for the Atlantic bluefin tuna, that name in turn is ultimately derived from θύνω thýnō, meaning "to rush, dart along".
Between 1940 and the mid-1960s, the annual world catch of the five principal market species of tunas rose from about 300 thousand tons to about 1 million tons, most of it taken by hook and line. With the development of purse-seine nets, now the predominant gear, catches have risen to more than 4 million tons annually during the last few years. Of these catches, about 68 percent are from the Pacific Ocean, 22 percent from the Indian Ocean, and the remaining 10 percent from the Atlantic Ocean and the Mediterranean Sea. Skipjack makes up about 60 percent of the catch, followed by yellowfin (24 percent), bigeye (10 percent), albacore (5 percent), and bluefin the remainder. Purse-seines take about 62 percent of the world production, longline about 14 percent, pole and line about 11 percent, and a variety of other gears the remainder.
Besides for edible purposes, many tuna species are caught frequently as game, often for recreation or for contests in which money is awarded based on weight. Larger specimens are notorious for putting up a fight while hooked, and have been known to injure people who try to catch them, as well as damage their equipment.
Tuna is canned in edible oils, in brine, in water, and in various sauces. Tuna may be processed and labeled as "solid", "chunked" ("chunk") or "flaked". When tuna is canned and packaged for sale, the product is sometimes called tuna fish (U.S.), a calque (loan translation) from the German Thunfisch. Canned tuna is sometimes used as food for pets, especially cats.
The product became more plentiful in the United States in the late 1940s. In 1950, 8,500,000 pounds of canned tuna were produced, and the U.S. Department of Agriculture classified it as a "plentiful food".
In the United States, 52% of canned tuna is used for sandwiches; 22% for tuna salads; and 15% for tuna casseroles and dried, prepackaged meal kits, such as General Mills's Tuna Helper line. Other canned tuna dishes include tuna melts (a type of sandwich where the tuna is mixed with mayonnaise and served on bread with cheese melted on top); salade niçoise (a salad made of tuna, olives, green beans, potatoes, hard-boiled eggs and anchovy dressing); and tuna burgers (served on buns).
In the United States, the Food and Drug Administration (FDA) regulates canned tuna.
Canned light tuna in oil is 29% protein, 8% fat, 60% water, and contains no carbohydrates, while providing 200 calories in a 100 gram reference amount (table). It is a rich source (20% or more of the Daily Value, DV) of phosphorus (44% DV) and vitamin D (45% DV), and a moderate source of iron (11% DV).
- 2 (16-ounce) cans baked beans
- 2 (2.8-ounce) cans French-fried onions
- 1/4 cup molasses
- 3 tablespoons real bacon bits
- 2 tablespoons yellow mustard
- 1 tablespoon butter, softened
- Preheat oven to 350º. Coat an 1-1/2-quart baking dish with cooking spray.
- In a medium bowl, combine all ingredients except one can of French-fried onions; mix well then pour into baking dish. Top with remaining can of French-fried onions.
- Bake 25 to 30 minutes or until bubbly and the onions are golden. Serve immediately.
And births this date include..
1921 – Jane Russell, American actress (d. 2011)
1933 – Bernie Kopell, American actor
1938 – Ron Ely , American actor
On the longest day of the year, Summer Begins in the Northern Hemisphere. It is also known as the Summer Solstice, which happens either on June 20th, 21st, or 22nd. It all depends on the time zone in which you live.
With the Summer Solstice, the astronomical calendar marks the first day of summer as the Earth’s axis is pointed toward the sun. It’s rays more directly impact the Northern Hemisphere giving us more daylight and more warmth. It’s a time when plants grow rapidly and animals are more active. That includes humans.
Many schools are out of session during the summer which gives families the opportunity to take vacations. Even those without children take time to explore the outdoors through camping, hiking, and biking. Community pools open, inviting everyone to cool off on hot summer days. The beaches are open, too. Water adventures in the form of kayaking, canoeing, skiing, and fishing entice us to the rivers and lakes.
Gardners and farmers spend time cultivating their bounty and watching the skies for foul weather. And speaking of fouls – baseball, softball, and soccer teams take the field with cheering fans in every color of the rainbow.
There’s so much to do during the summer, we try to pack it all in over weekends and short breaks. But it never seems to be enough time. Before we know it, summer is over. Though, it’s only just begun.
HOW TO OBSERVE SUMMER BEGINS
There are so many ways to enjoy the beginning of summer! Whether you spend the day hiking, reading a good book on the beach or grilling some burgers, the important thing is that you celebrate summer. Spend some time outside in the fresh air. Take a long walk and visit a local park.
SUMMER BEGINS HISTORY
Since ancient times, the summer solstice has been marked on calendars with celebrations honoring the sun and as a way to mark the seasons.