Latest Fish migration Stories
Atlantic Salmon Federation (ASF) research to determine why significant numbers of migrating salmon leave rivers but so few return to spawn is the focus of a documentary, Atlantic Salmon -
A new model built around biological data from electronic tags, ear bone microchemistry and fisheries catch data for Atlantic bluefin tuna indicates fishing on one side of the Atlantic influences the other side.
Stocks of Atlantic salmon (Salmo salar) are facing new challenges in the Gulf of Maine, where changing spring wind patterns, warming sea surface temperatures and new predators along altered migration routes are affecting their survival.
Case study: Juvenile Salmon Acoustic Telemetry System detected 98 percent of tagged fish.
PORTLAND, Ore., Dec.
Attempts to avoid dams decrease survival in adult fishScientists have discovered that management efforts intended to assist migrations of salmon and steelhead trout can have unintended consequences for fish populations. Juveniles that are transported downstream on boats can lose the ability to migrate back to their breeding grounds, reducing their survivorship and altering adaptations in the wild.Transportation programs have been in place for over three decades to improve the survival of fish...
Canadian and U.S. biologists say they have, for the first time, successfully tracked juvenile salmon in both rivers and oceans. The achievement, officials said, was made possible by newly developed miniature tagging and tracking technologies that can follow small salmon over vast distances.
By Pondella, Daniel J II Froeschke, John T; Wetmore, Lynne S; Miller, Eric; Valle, Charles F; Medeiros, Lea Abstract: The yellowfin croaker, Umbrina roncador Jordan & Gilbert, 1882, is a common nearshore and surf-zone species in the southern California bight.
By Ad Crable Only a few years ago, it all seemed so promising. American shad, once a prized spring staple of locals' diet and an economic linchpin up and down the Susquehanna, at last seemed headed for a comeback amid a multi-state and federal restoration plan.
Thousands of marine animals could be tracked under a $150 million project to understand threats to life in the oceans with technology perfected for supermarket checkouts, scientists said on Monday.
The Brown Trout (Salmo trutta) is originally a European species of salmonid fish. It includes both purely freshwater populations, referred to Salmo trutta morpha fario and S. trutta morpha lacustris, and anadromous forms referred to as the sea trout, S. trutta morpha trutta. The latter migrates to the oceans for the majority of its life and returns to freshwater only to spawn. The specific handle trutta comes from the Latin trutta, meaning, literally, “trout”. The lacustrine morph of...
The Three-Spined Stickleback, Gasterosteus aculeatus, is a fish native to much of northern Europe, northern Asia and North America. It has been introduced into parts of southern and central Europe. Three subspecies that are currently recognized by the IUCN are Gasterosteus aculeatus aculeatus, which is found in most of the species range, and is the subspecies most strictly termed the Three-Spined Stickleback; its common name in England is the Tiddler, although "tittlebat" is also sometimes...
The American shad or Atlantic shad, Alosa sapidissima, is a species of anadromous fish in family Clupeidae of order Clupeiformes. The shad is a member of the herring family. Description The American shad is the largest member of the herring family. Shad have silver bodies and a green back, with large scales and a deeply forked tail. The males (or "bucks") are smaller than the female, weighing about 1 to 3 pounds when spawning; females are generally 3 to 8 pounds. Both genders tend to...
- The deadly nightshade, Atropa Belladonna, which possesses stupefying or poisonous properties.
- A sleeping-potion; a soporific.
- To mutter deliriously.