fisheries
Are bigger moms better moms?
We know that larger female fish produce more eggs, but does this really mean they produce more young that grow into the next generation?
Sunday brunch: Lox with… lice?
Lox and lice. Not a combination of critters you envision when planning your Sunday brunch. Unfortunately, an increase in drug resistant sea lice is threatening both wild and farmed salmonid populations.
Watch out guys, pregnant whale sharks are on the loose!
Whale sharks have become an increasingly popular tourist attraction, but much of their life history remains largely unknown. This study sets off to observe whale sharks around Darwin Island to help understand more about their habitat use, population size, and seasonal appearances. And what they find is a whole lot of pregnant whale sharks.
Bottom trawling changes bodies: the new seafloor diet
Seafloor trawling inevitably captures more than the species it is targeting. This means that when the remaining fishes line up at the buffet table, the options they have to choose from may be different than what they like to eat. In this article, Johnson et al., investigate whether two fish species in the Irish Sea are going hungry under different trawling conditions.
The Language of Fishes
Coral reefs are composed of hundreds of different species, who all use different acoustics to communicate, just like we use different languages around the world to communicate. Researchers set out to better understand and record the language of fishes in hopes of building a species-specific soundscape of the coral reef community.
Cartilaginous Conundrum: Are Sharks and Skates Safe to Eat?
While smooth dogfish may not be on your list of favorite seafood, cartilaginous fish (mainly sharks and skates) may increasingly find their way onto your dinner plate due to the decline of more traditional fisheries. While increased demand for these species as a food item could help struggling seafood industries, recent proposals to use dogfish in federal food programs beg the question: Is it safe to eat shark?
The Ghastly Impacts of Ghost Fishing Gear
Derelict fishing traps, or DFTs, are abandoned traps that may still be actively capturing marine organisms, in a phenomenon known as “ghost fishing.” In this study, a group of scientists put together a qualitative assessment on the ecological and economic impacts these traps may be having on coastal ecosystems throughout the United States.
Beware! Shellfish are taking over the fishing industry
Overfishing has created a cascading effect in the marine food web. Once, large apex predators, such as cod, dominated the fishing industry, but now, shellfish have taken over and contribute to more than half the fisheries stock.
How will climate change affect coastal fisheries production?
Forecasted impacts of climate changes on fisheries production in coastal ecosystems suggest modest changes on average with significant increases in primary production in high latitude systems and declines near the equator. Fisheries in developing nations are most at risk. However, declining productivity may be buffered by responsible management practices.
It’s all about color for the rainbow wrasse
Male rainbow wrasses actively defend their territory and the amount of red light entering the water column has been found to have an effect on how aggressive these males will be towards intruding wrasses.
You Are What Your Fish Eats: how an invasive seaweed is contributing to the decline in nutritional value of commercial fish
Invasive species are known to be harmful to native species, biodiversity, and ecosystem function. But recent research has shown that certain invasive species may be affecting the nutritional quality of your food!
Annual fishing weir catches may be under-reported to the U.N. by Persian Gulf Nations
Scientists from the University of British Columbia who are a part of the Sea Around Us Project use Google Earth to estimate fish catches in the Persian Gulf. Their findings show that the estimated catch is up to six times greater than official figures from the United Nations Food and Agriculture Organization (FAO).
Cooked fish: Ocean warming and global fisheries
Global fisheries are expected to change as ocean temperatures warm. A recent study by Cheung et al. uses mean temperature of catch, a metric based on species’ average thermal preferences, to determine whether fisheries are changing to include more warm-water species.
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