Sentences with phrase «in sea lampreys»
«Remarkably, we didn't set out to study sex determination in sea lampreys — we were planning to study environmental effects on growth rates only,» said Nick Johnson, a USGS scientist and the lead author of the study.
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We first examined the morphology and development of the dorsal ridge in sea lamprey at various developmental stages (Fig. 2; supplementary material Fig.
Not exact matches
The jawless, blood - sucking sea lamprey found its way into the Great Lakes in the early 20th century through man - made canals, and has been disturbing the peace ever since.
This discovery could be a critical step in developing advanced technologies to control sea lamprey.
«The results of this study could be a critical step toward developing advanced technologies to control sea lampreys in the Great Lakes, which have caused unparalleled damage to fisheries,» said David Ullrich, chair of the GLFC.
Scientists had seen that dead sea lampreys in a tank caused live ones to freak out and try to escape.
They compared 146 genes in many chordates, including hagfish and lamprey (considered the most primitive vertebrates) and larvaceans, which are sea - faring relatives of sea squirts.
And indeed the 50 - centimeter - long, eellike creatures can wreak havoc on freshwater communities when they invade from the sea, with a single sea lamprey able to kill 18 kilograms of fish in its lifetime.
Sea lampreys are a particular problem in the Great Lakes regions of the United States and Canada.
When sea lampreys (Petromyzon marinus) mature, growing their jawless toothy gapes and sucking blood of other fishes, iron concentrations in blood drop — to about 10 times healthy human levels.
Studies of the modern species» blood - feeding physiology got a solid source of new data in 2013 when an international team decoded the genetic instruction book of the sea lamprey, a notorious invader of the Great Lakes.
His specialty is explaining scientific studies for lay audiences, including recent stories about riverless urban areas in the Great Lakes Basin, the impact of climate change on rare plants and the use of sex pheromones to combat the invasive sea lamprey.