Sentences with phrase «early fish likely»

Larval fish can exchange ions through their skin, and early fish likely used rudimentary gill structures known as branchial baskets.

Not exact matches

They became a big fish in a small (er) pond earlier in their life cycle, and most likely reaped major benefits because of it.

The last common ancestor of sharks and bony fishes probably didn't have gill arches arranged like those in modern sharks — which, in turn, suggests that the oldest known species of bony fishes can likely provide more information about the earliest jawed vertebrates (a group that today includes humans) than early chondrichthyans can, the researchers contend.

Correction (10/28/15): An earlier mention of placoderms has been removed to reflect the general consensus that this fish had likely gone extinct prior to the Permian period.

Fish Washing Up Dead, Geese Coated in Oil Though experts say it's too early to assess the full environmental damage, dead fish are washing ashore, Canada geese have been spotted coated in oil, and the expected impact on invertebrates, amphibians and any mammals coming into contact with oil at water's edge is likely to be significFish Washing Up Dead, Geese Coated in Oil Though experts say it's too early to assess the full environmental damage, dead fish are washing ashore, Canada geese have been spotted coated in oil, and the expected impact on invertebrates, amphibians and any mammals coming into contact with oil at water's edge is likely to be significfish are washing ashore, Canada geese have been spotted coated in oil, and the expected impact on invertebrates, amphibians and any mammals coming into contact with oil at water's edge is likely to be significant.

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