Sentences with phrase «range ocean habitat»

As opposed to their natural wide - range ocean habitat, these intelligent, social marine mammals will be forced to live out their lives in -LSB-...]

Not exact matches

More than half the species for oceans and tropical forests are on a special watch list because of small and declining populations, limited ranges and severe threats to their habitats.

They live in all oceans of the world from the equator to polar latitudes, and occupy a wide range of habitats from coral and rocky reefs, seagrass and algal beds, to sand and mud soft substrates.

Researchers found that due to warming waters, the edge of the sharks» range could shift as much as 40 miles poleward per decade, pushing the sharks away from the warming oceans near the equator into different habitats.

Well - controlled laboratory as well as large - scale field experiments were conducted with keystone species and natural communities in a wide range of habitats in the North and Baltic Sea, the Atlantic and Arctic Ocean, and off Papua New Guinea, among other places.

In fact, each of the nine teams of EPA divers averages over 100 logged missions each year in all varieties of aquatic habitats, ranging from freshwater lakes, rivers, and quarries, to brackish estuaries and the salty waters of the open ocean.

King penguins have adapted to a precise habitat range: they favour a scatter of islands in the Southern Ocean, away from the sea ice but close to an oceanic upwelling called the Antarctic Polar Front, which concentrates colossal quantities of fish into a small area.

As ocean temperatures continue to rise, the range of suitable habitat for many commercially important fish and shellfish species is projected to shift northward.

The length of the growing season in interior Alaska has increased 45 % over the last century7 and that trend is projected to continue.8 This could improve conditions for agriculture where moisture is adequate, but will reduce water storage and increase the risks of more extensive wildfire and insect outbreaks across much of Alaska.9, 10 Changes in dates of snowmelt and freeze - up would influence seasonal migration of birds and other animals, increase the likelihood and rate of northerly range expansion of native and non-native species, alter the habitats of both ecologically important and endangered species, and affect ocean currents.11

For example, reductions in seasonal sea ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.134