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mortality-Population mortality occurs either as part of the catch (landings plus discards) or incidentally either by killing benthic and demersal species or making them more vulnerable to scavengers and other predators. Increased food availability. Discarded fish, fish offal, and dead benthic organisms become food for scavenging species. Loss of habitat. Some fishing gears cause the disturbance or destruction of seafloor habitat.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoSmall amounts of it are often contaminated
Wiki User
∙ 12y agobecause it can harm the environment and ecosystems around it.
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∙ 14y agowhen people dredge the water it may kill small animals living in the water.
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∙ 15y agopooooooooooooooooooooooooooooooooooooooooooooooooooop
Wiki User
∙ 12y agoAquatic ecosystems... (stirs up silt and lowers the O2 content of the water)
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What is another name for a small bay?
Here are some in the State of Maine,in the United States Passamaquoddy Bay Cobscook Bay Dennys Bay East Bay Sipp Bay South Bay Straight Bay Whiting Bay Johnson Bay Little Machias Bay Machias Bay Holmes Bay Little Bay Little Kennebec Bay Englishman Bay Mason Bay Chandler Bay Eastern Bay Alley Bay Western Bay Wohoa Bay Pleasant Bay Narraguagus Bay Back Bay Flat Bay Harrington Bay Pigeon Hill Bay Dyer Bay Pinkham Bay Gouldsboro Bay Joy Bay West Bay Hancock County Winter Harbor Frenchman Bay Eastern Bay Flanders Bay Taunton Bay Egypt Bay Hog Bay Thomas Bay Youngs Bay Eastern Way Somes Sound Western Way Western Bay Union River Bay Blue Hill Bay Penobscot Bay Belfast Bay Gilkey Harbor Seal Bay Rockport Harbor Clam Cove Rockland Harbor Muscongus Bay Johns Bay Linekin Bay Boothbay Harbor Booth Bay Sheepscot Bay Montsweag Bay Hockomock Bay Merrymeeting Bay Sagadahoc Bay Quahog Bay Harpswell Sound Middle Bay Maquoit Bay Casco Bay Saco Bay Bay of Fundy Gulf of Maine
Hudson bay is the world biggest bay where is it?
Hudson bay is the world biggest bay where is it?
How much does it cost to dredge soil?
Dredging is the removal of stuff from the bottom of a bay, lake, river or other body of water. The costs of dredging vary as widely as the job. If you need to make a drainage canal deeper (or restore its depth), you can use a big bucket and do it from the bank. Costs are modest at a few hundred dollars per hour. Compare that to all out dredging like deepening a shipping channel or a harbor. Fasten your seatbelt. The big dredge can either bucket or "vacuum" the bottom materials away, and they can be directed into a hold onboard, onto a barge or "piped" out of the way. The costs of this kind of activity rocket into the thousands of dollars per hour, and can go higher, depending on the job and what is required to do it. Removal of sediments and muck is one thing. Removing rocks and such costs a ton more. Deepening New York harbor using a big bucket dredge and scows to hold the spill and tugs to pull it away costs hundreds of thousands of dollars per day. Use the YouTube link to the Dredging New York Harbor" to see the operation. At the end of the clip, the engineer dude says it costs $100,000 to $120,000 per day to do the job. That's too low for all the equipment and all that time (24 hours). It's gotta be more, and not just 'cause fuel costs have gone up. Wikipedia has information on dredging and on the equipment. You'll find the links below. Just for fun, we've provided a link to the Geopotes 14, one of the world's largest trailing suction hopper dredges. This bad boy sucks up material from the bottom and then dumps it in on on-board hold. It will then run out to sea a ways and dump the material before coming back to suck up more. You can't get this vessel for anything less than tens of thousands of dollars per hour, and there's probably a 48 hour minimum or something like that. What the heck. We went all out and included a link to a YouTube post of the big beast in action. YouTube has quite a few posts on dredging. Put "Dredge" in as a search argument and see how many hits you get.
Who is bay bay bay married to?
It dose not get married to anything.
What are two bodies of water that form the physical centre of Canada?
hudson bay and james bay
Who is dredging Port Phillip Bay?
Dutch company Royal Boskalis Westminster is dredging Port Phillip Bay on behalf of the Port of Melbourne Corporation.
Why are they dredging Port Phillip Bay?
They are dredging Port Phillip Bay to get huge container ships in and out of the bay to get items and food. In result of this they will be destroying thousnads of marine life. I made this map of the dredging plans and where all the marine life reserves are. http://img176.imageshack.us/my.php?image=portphillip.gif&via=tfrog I hope this helped :)
What has the author Robert P VanEepoel written?
Robert P. VanEepoel has written: 'Effects of dredging at Great Cruz Bay, St. John' -- subject(s): Dredging, Environmental aspects of Dredging, Oceanography
What are the advantages and disadvantages of dredging?
The River will be environmentally restored and prevent further degradation to Biscayne Bay.
What was the bugeye sailboat created for?
The bugeye sailboat was used for oyster dredging. It was developed in the Chesapeake Bay when the watermen of the bay found it difficult and slow going using tongs to pick up oysters from the bay.
Which waterway connects the city of Houston with the Gulf of Mexico?
The Houston Ship Channel created by the dredging of Buffalo Bayou and Galveston Bay.
What are the advantages of dredging?
Dredging allows us to export and imports things through the dredging channels.
What is Dredging Corporation of India Limited's population?
Dredging Corporation of India Limited's population is 2,003.
When was Dredging Corporation of India Limited created?
Dredging Corporation of India Limited was created in 1976.
What is the meaning of dredging?
of Dredge
How do shipping channels get deepened?
Dredging,
What is the dredging of rivers?
lakes and river
