Muskrats don’t cache food for the winter like a beaver so they must find fresh aquatic plants every day under the ice, though they’ll occasionally snack on small fish, clams, snails and turtles, too.
After 40 years of work, retired NIWA fisheries scientist Larry Paul has just published a 793-page bibliography of references to New Zealand marine fishes.For all that the bibliography covers, Larry says new species of fish are still being discovered throughout New Zealand’s waters.
The health of “entire ocean ecosystems” and food security is in jeopardy, said Dulvy, a former co-chair of the shark specialist group of the International Union for Conservation of Nature (IUCN).The number of species of sharks, rays, and chimaeras, known together as chondrichthyan fishes, facing “a global extinction crisis” has more than doubled in less than a decade, according to the paper published September 6 in the journal Current Biology.
Females are bigger than males, and instead of mating then laying eggs, the females drop eggs in sandy nests and then males, which have attached themselves to the females, release sperm directly on top of the eggs, says Berlynna Heres, Florida Fish and Wildlife Commission researcher and lead author of the recent paper “Using Citizen Science to Track Population Trends in the American Horseshoe Crab.”.
My friend, a visiting fish biologist, was thrilled to catch species new to him, like chiselmouth, largescale sucker and northern pikeminnow.It’s time to put the term “trash fish” in the trash, where it belongs, and give these fish the respect (and management) they deserve.
A group of gorgonian octocorals that provide shelter for fish and invertebrates in the deep sea is the subject of NIWA’s latest Biodiversity Memoir.The NIWA Biodiversity Memoir series describe the taxonomy of New Zealand marine life, mostly for invertebrates such as sponges, corals, marine worms, molluscs, crustaceans and sea stars.
“It was so unlike any form of terrestrial locomotion seen in any animal,” says Noah Bressman, lead author of a new paper describing the behavior in the journal Ichthyology and Herpetology .
The numberless catfish who now course through social media , the ones who devastate lives with sophisticated online masquerades, exist to beguile and disturb.In this way, she is akin to Nev's catfish, Angela, who turned him from a defeated dropout to a man with a purpose.
That’s how Wesley Daniel, the database coordinator and a fisheries biologist at the USGS, recently learned that a zebra mussel had turned up on an imported moss ball in a Seattle Petco.
“This higher ingestion rate for flounder could be due to microplastics accumulating in marine sediments which makes up more of their diet compared to other species, or it could be because the flounder samples were all obtained from the Waitemata Harbour, which is closer to Auckland as a potential microplastic source,” she said.
© Jacob Karst I’m on a quest to catch a fish in each of the 50 U.S. states – and to use each adventure as a means to explore conservation, the latest fisheries research and our complicated connections to the natural world.
The funding from Germany's KfW development bank will support FAO's efforts to build the resilience of resource-poor producers, pastoralists and fishers in three of the world's most food insecure countries - the Democratic Republic of the Congo, Somalia and Yemen, work undertaken in partnership with other UN agencies.
“If you inadequately monitor these fisheries resources, successful and sustainable management cannot take place in a timely manner,” says Dr. Richard Ogutu-Ohwayo, who has studied and worked on Africa’s Great Lakes for over 40 years and is currently the Executive Director of AFLANET, the African Lakes Network.
How TNC is leading the way on applying technology to protect fisheries in the digital age Balancing a thriving fishing industry with ocean health presents a growing challenge.
Opportunities to Improve Fisheries Management through Innovative Technology and Advanced Data Systems.Yet, despite the proliferation of relevant consumer technology, integration of technologically advanced data systems into fisheries management remains the exception rather than the rule.
The researchers argue that this is a sign of struggle, preserved for millions of years in the fossil record: As a worm dragged a wriggling fish down into its lair, sediment would spill in to fill the void.
It is designed to spend months at sea mapping the seafloor with powerful sonar devices, while simultaneously scanning the ocean surface for genetic material to identify fish and other marine organisms swimming below.
The ship leaves Wellington and heads south with 20 science staff and 19 crew on board to learn more about key environmental and biological processes in the Ross Sea. Voyage leader and fisheries scientist Dr Richard O’Driscoll says this is the third in a series of voyages focused on providing baseline information about the Ross Sea Marine Protected Area (MPA) established in 2017.
I’m in Wyoming with my friend Brett Prettyman, a communications director for Trout Unlimited, to check out cutthroat fishing and conservation.
We essentially recognized that stocking westslope cutthroat and grayling in the Upper Gibbon was assisting their adaptation to climate change, and ensuring a future for native fish in the park for generations to come.”.
In both goldfish and the carp they were derived from, there are 25 chromosomes, but each fish carries 100 of them—instead of two copies, they have four, or rather two sets of two.
The authors, Jason Schooley and Dr. Dennis Scarnecchia, describe it as “a call to action for states to begin managing and monitoring bowfishing.” I also consider it a call for all of us who value native fish, whether as anglers or biodiversity advocates.
“From the start, we knew almost any structure would attract lionfish,” says Steve Gittings, NOAA National Marine Sanctuaries chief scientist.Attracting, and trapping, a fish as invasive as lionfish requires intense effort.