View allAll Photos Tagged zebramussels
This is a small piece of a clump of zebra mussels which are an undesirable, invasive species that have been proliferating in many lakes and disrupting the natural balance of these bodies of water. Being washed up on the beach they are not only damaged, having been torn apart, but also dead as they cannot survive outside of the water.
A signal crayfish emerges from a bed of zebra mussels ... both invasive species, although the crayfish do at least eat the mussels
I saw about 4 of these during the dive. This one posed nicely on top of a dead tree. The white splodge behind it's right eye was a zebramussel growing on it's carapace.
A Eurasian Coot at Walthamstow Wetlands with a cluster of zebra mussels which it is trying to shake apart in order to eat them.
I've seen coots dive and come back up with these nuggets before and hadn't previously figured out what they were. Zebra mussels (native to southern Russia and Ukraine) are an invasive species in the UK and elsewhere and often out-compete slower-growing native species of freshwater bivalves, not least by smothering them by anchoring to their shells. They can also cause havoc at waterworks by blocking pipes etc. - here they are in a reservoir so they may well be causing such problems at the waterworks over the road.
However, they are eaten by a variety of birds, some of them very common such as the coot and tufted duck (which I also saw bring some up) which tend to eat most of the adult mussels in the winter before they grow back in the summer.
the creature that once belonged to these shells is the Zebra Mussel. It is an invasive species that now can be found in the Great Lakes that surround Michigan. On a recent walk on the beach of Lake Huron there were piles of these shells. They are about the size of the last joint of your finger and can found by the thousands in piles like this one.
Redhead Duck (Drake) and a whole lot of Long-tailed Ducks (a.k.a. known as Old Squaws) making a quick get away. The Redhead is holding onto a zebra mussel he just dove for.
A Greater Scaup had no sooner emerged from underwater with a clump of Zebra and Quagga mussels when this young Herring Gull snatched it away from her and promptly ate it. As I watched, I realized this happened with great regularity, which perhaps explains why the ducks always seem to try to hide their catch (to the frustration of those of us with cameras!) when they surface with food.
. . . I am not what to call these monsters from Lake Michigan! Every spring they wash up on the beach in great numbers, and seem to be a mixture of seaweed, sticks, and shells. I guess a good name would be "Zebra Mussel Weed"!! Seems strange because the bottom here is all sand, with very little or no plant growth at all!
Have a good Friday and weekend Facebook and Flickr friends!
Huge accumulations of these mussels have washed up at Minet's point in Barrie.
uwaterloo.ca/biology/news/waterloo-biologists-model-big-i...
In-camera multiple image (2 frames) showing signal crayfish and zebra mussels...both invasive species in the UK
Huge accumulations of these mussels have washed up at Minet's point in Barrie, shoreline here is almost all musses shells.
uwaterloo.ca/biology/news/waterloo-biologists-model-big-i...
A coot with a cluster of zebra mussels at Walthamstow Wetlands. The coots seem to be very effective at controlling this invasive species of shellfish in shallower waters, however they do not dive very deep so any mussels in deeper waters will be untouched.
Zebra mussels (Dreissena polymorpha) colonizing a bottle in Lake Constance
GBIF ID 1323006812 (www.gbif.org)
iNaturalist observation 4194918 (www.inaturalist.org)
Dead zebra mussels on the gate of the lock at Black Rapids on the Rideau Canal in Ottawa, Ontario, Canada.
Zebra mussels are freshwater bivalves native to the Black Sea region of Eurasia. Both species were believed to have been introduced in the late 1980s by ballast water from transoceanic ships carrying veligers (larvae), juveniles, or adult mussels.
Zebra mussels are capable of heavily colonizing hard and soft surfaces, including, docks, boats, break walls, and beaches. These colonizations are also responsible for clogging intake structures in power stations and water treatment plants.
Zebra mussels are found throughout all the Great Lakes, Lake St. Clair, and the Mississippi River watershed. Unlike the zebra mussel, quagga mussels are found to be limited to the southern Great Lakes; Lake Ontario, Michigan, Huron, and Erie. They have also been found in the St. Lawrence River and north to Quebec city.
Windrowed Zebra Mussel (Dreissena polymorpha) shells have been piled up by waves on the shores of a Lake Winnebago. This is a familiar sight on the Great Lakes. More about Lake Winnebago: www.lakeandwetlandecosystems.com/fox-wolf-winnebago/lake-...
Sony a65v slt
Sigma 17-70mm f2.8-4 Macro HSM
A Redhead Duck with a zebra mussel gets caught up in a flock of Long-tailed Ducks trying to take off. The Long-tailed Duck takes awhile to get up and flying.
Dead zebra mussels (infestation) at Hartwell Locks on the Rideau Canal in Ottawa, Ontario, Canada.
Female zebra mussels lay around 1 million eggs a year.
Zebra mussels are freshwater bivalves native to the Black Sea region of Eurasia.
Both species were believed to have been introduced in the late 1980s by ballast water from transoceanic ships carrying veligers (larvae), juveniles, or adult mussels.
Zebra mussels are capable of heavily colonizing hard and soft surfaces, including, docks, boats, break walls, and beaches. These colonizations are also responsible for clogging intake structures in power stations and water treatment plants.
Zebra mussels are found throughout all the Great Lakes, Lake St. Clair, and the Mississippi River watershed. Unlike the zebra mussel, quagga mussels are found to be limited to the southern Great Lakes; Lake Ontario, Michigan, Huron, and Erie. They have also been found in the St. Lawrence River and north to Quebec city.
Rowing sculls destined for Shawnigan Lake School were inspected for quagga and zebra mussels and decontaminated by one of BC’s mussel inspector teams Monday, June 13, 2016. Watercraft owners are encouraged to always Clean, Drain, Dry their boats and equipment to help prevent the spread of invasive mussels. It is mandatory for all watercrafts entering into BC to be inspected for invasive aquatic species, to keep the Province quagga and zebra mussel free.
Rowing sculls destined for Shawnigan Lake School were inspected for quagga and zebra mussels and decontaminated by one of BC’s mussel inspector teams Monday, June 13, 2016. Watercraft owners are encouraged to always Clean, Drain, Dry their boats and equipment to help prevent the spread of invasive mussels. It is mandatory for all watercrafts entering into BC to be inspected for invasive aquatic species, to keep the Province quagga and zebra mussel free.
Rowing sculls destined for Shawnigan Lake School were inspected for quagga and zebra mussels and decontaminated by one of BC’s mussel inspector teams Monday, June 13, 2016. Watercraft owners are encouraged to always Clean, Drain, Dry their boats and equipment to help prevent the spread of invasive mussels. It is mandatory for all watercrafts entering into BC to be inspected for invasive aquatic species, to keep the Province quagga and zebra mussel free.
Dead zebra mussels (infestation) at Hartwell Locks on the Rideau Canal in Ottawa, Ontario, Canada.
Female zebra mussels lay around 1 million eggs a year.
Zebra mussels are freshwater bivalves native to the Black Sea region of Eurasia.
Both species were believed to have been introduced in the late 1980s by ballast water from transoceanic ships carrying veligers (larvae), juveniles, or adult mussels.
Zebra mussels are capable of heavily colonizing hard and soft surfaces, including, docks, boats, break walls, and beaches. These colonizations are also responsible for clogging intake structures in power stations and water treatment plants.
Zebra mussels are found throughout all the Great Lakes, Lake St. Clair, and the Mississippi River watershed. Unlike the zebra mussel, quagga mussels are found to be limited to the southern Great Lakes; Lake Ontario, Michigan, Huron, and Erie. They have also been found in the St. Lawrence River and north to Quebec city.
This isn't the first invasive species that we've made, but it is the most serious. We've seen warnings of these zebra mussels everywhere we've gone in Cascadia.
Zebra Mussels
thrifted fabric
recycled polyfill stuffing
original drawings by
six-year-old boy
This isn't the first invasive species that we've made, but it is the most serious. We've seen warnings of these zebra mussels everywhere we've gone in Cascadia.
Zebra Mussels
thrifted fabric
recycled polyfill stuffing
original drawings by
six-year-old boy
A macro perspective of the beach surface that we rarely see and on which we casually step in our walks along the shore... Taken with the newly acquired Nikkor 105mm f/2.8 Micro lens... So impressed with this lens! And check out the shutter speed of this shot... 1/7999 of a second!!! The max shutter speed of this wonderful D7000 camera is 1/8000th of a second, so I'm, what, 1/1000th of a second from its maximum speed.... Wow. I'll probably be buying another camera this year, but to say that I love this, my first real camera, is an understatement... A reliable, sweet friend that has made over 200,000 clicks and it's still going strong....
an incredible amassing of zebra mussel shells
quite awe inspiring despite the lake death, invasive aspect . . .
photo date/id: 20140608_3179panoC
Dead zebra mussels (infestation) at the Hogs Back Lockstation on the Rideau Canal in Ottawa, Ontario, Canada.
Female zebra mussels lay around 1 million eggs a year.
Zebra mussels are freshwater bivalves native to the Black Sea region of Eurasia.
Both species were believed to have been introduced in the late 1980s by ballast water from transoceanic ships carrying veligers (larvae), juveniles, or adult mussels.
Zebra mussels are capable of heavily colonizing hard and soft surfaces, including, docks, boats, break walls, and beaches. These colonizations are also responsible for clogging intake structures in power stations and water treatment plants.
Zebra mussels are found throughout all the Great Lakes, Lake St. Clair, and the Mississippi River watershed. Unlike the zebra mussel, quagga mussels are found to be limited to the southern Great Lakes; Lake Ontario, Michigan, Huron, and Erie. They have also been found in the St. Lawrence River and north to Quebec city.
I went to scout out some areas for later photo sessions today. My travels took me to the shores of Lake Erie, specifically to Rock Point Provincial Park, just South-East of Dunnville, Ontario. The point is aptly named, as the sedimentary rock shelves project out from the park into Lake Erie, representing a significant navigation hazard in the already very shallow lake. As luck would have it, Rock Point has a big boulder on the 'beach'. I believe it is an erratic, i.e a rock carried here by glacial action some 10,000 years (or so) ago. The composition of the rock appears to be granitic, unlike the local sedimentary rock formations. Mother nature was not particularly cooperative today, bringing periodic snow flurries in the sub-zero (Celsius) temperatures as heavy clouds obscured most of the sky, but kindly providing a small break for the small 'god-beam' phenomenon seen out over the lake. On the shore near the camera position, you can see a heavy deposit of what appears to be gravel, but which is, instead, shells of zebra-mussels. This invasive species is believed to have been introduced in ballast from European sea vessels in 1988 and now is well established in Lake Erie (among other lakes and waterways). - JW
Date Taken: 2014-12-29
Tech Details:
Taken using a tripod-mounted Nikon D7100 fitted with a Nikkor 12-24mm lense set to 12mm, ISO100, Aperture priority mode, f/11 (to get depth of field required), 1/80 sec. PP in free Open Source RAWTherapee: bring up shadows, reduce highlights slightly to preserve detail in 'god-beam' area, slightly increase black level, boost vibrance, apply noise reduction, sharpen. PP in free Open Source GIMP: load image twice as layers, bottom layer for sky and top layer for shore, adjust the shore layer tone curve to get a good looking shore area disregarding the impact on the sky, adjust the tone curve of the sky layer to get good contrast and highlights disregarding the impact on the shore area, use a soft edged eraser tool to remove the sky from the top/shore layer revealing the better sky in the layer below, create new working layer from the visible result, increase saturation to bring out the colours in the boulder, slightly boost contrast and reduce brightness to get a more natural (to me) look), sharpen, add fine black and white frame, add bar and text on left, scale to 1800 wide for posting.
Dead zebra mussels (infestation) at Hartwell Locks on the Rideau Canal in Ottawa, Ontario, Canada.
Female zebra mussels lay around 1 million eggs a year.
Zebra mussels are freshwater bivalves native to the Black Sea region of Eurasia.
Both species were believed to have been introduced in the late 1980s by ballast water from transoceanic ships carrying veligers (larvae), juveniles, or adult mussels.
Zebra mussels are capable of heavily colonizing hard and soft surfaces, including, docks, boats, break walls, and beaches. These colonizations are also responsible for clogging intake structures in power stations and water treatment plants.
Zebra mussels are found throughout all the Great Lakes, Lake St. Clair, and the Mississippi River watershed. Unlike the zebra mussel, quagga mussels are found to be limited to the southern Great Lakes; Lake Ontario, Michigan, Huron, and Erie. They have also been found in the St. Lawrence River and north to Quebec city.
The province has ramped up inspections for invasive species such as zebra and quagga mussels on boats and other watercraft to prevent major damage to Alberta’s waterways. Four inspection stations on major entry points will target boats entering Alberta.
Once introduced to a waterbody, non-native mussels are virtually impossible to eradicate. An infestation of invasive mussels is estimated to cost the province more than $75 million annually – including damage to infrastructure and recreational opportunities. bit.ly/11euu3g
Photo credit: National Park Service, Lake Mead, Arizona
Dead zebra mussels (infestation) at the Hogs Back Lockstation on the Rideau Canal in Ottawa, Ontario, Canada.
Female zebra mussels lay around 1 million eggs a year.
Zebra mussels are freshwater bivalves native to the Black Sea region of Eurasia.
Both species were believed to have been introduced in the late 1980s by ballast water from transoceanic ships carrying veligers (larvae), juveniles, or adult mussels.
Zebra mussels are capable of heavily colonizing hard and soft surfaces, including, docks, boats, break walls, and beaches. These colonizations are also responsible for clogging intake structures in power stations and water treatment plants.
Zebra mussels are found throughout all the Great Lakes, Lake St. Clair, and the Mississippi River watershed. Unlike the zebra mussel, quagga mussels are found to be limited to the southern Great Lakes; Lake Ontario, Michigan, Huron, and Erie. They have also been found in the St. Lawrence River and north to Quebec city.
The Zebra mussel is an aquatic invasive species found at Diamond Lake in Umpqua National Forest in Oregon on June 10, 2008. These mussels attach to hard surfaces such as pipes, screens, rock, logs, boats, and ropes. A species is considered invasive it is nonnative to the ecosystem and its introduction causes or is likely to cause economic or environmental harm or harm to human health. The goal of the U.S. Department of Agriculture’s (USDA) Forest Service (FS) invasive species program is to reduce, minimize, or eliminate the potential for introduction, establishment, spread, and impact of invasive species across all landscapes and ownerships. USDA photo by Bob Nichols.