‘No ship captain or shipping company wants to strike a whale’
Satellite data about whale movements and ocean conditions have helped scientists create monthly whale hotspot maps that could help avert collisions between ships and marine mammals.
Developed by researchers with NOAA Fisheries, Oregon State University and the University of Maryland, the WhaleWhatch program alerts ships where there may be an increased risk of encountering these endangered whales. NASA helped fund the project, which draws on ocean observations from NASA and NOAA satellites. Continue reading “Satellite mapping could help avert whale-ship crashes”→
Oil and gas exploration would have widespread effects on marine mammals
Conservation advocates have long been saying that blasting the Gulf of Mexico with seismic airguns to find more oil and gas beneath the seafloor would result in unacceptable harm to marine mammals and other marine life, and a new draft environmental study by the Bureau of Ocean Energy Management seems to confirm those concerns.
The study was completed under the terms of a court-ordered settlement of a lawsuit brought by environmental groups. It shows that the blasting would have widespread impacts on marine life, including injuries to endangered sperm whales and Bryde’s whales. The draft report outlines possible mitigation measures, including closure areas where seismic blasting would be banned, and reductions in the amount of activity permissible each year. Continue reading “New federal study outlines impacts of seismic air gun blasting in Gulf of Mexico”→
Continued illegal gill net fishing cited in push for ban on Mexican seafood
In what could be a last-ditch effort to save imperiled vaquita in the Gulf of California, conservation advocates are urging the Obama administration to launch economic sanctions against Mexico to halt that country’s trade in totoaba. According to the Center for Biological Diversity, the sanctions would be justified because Mexico is violating the Convention on International Trade in Endangered Species (CITES) by not enforcing the ban on totoaba trade.
New survey results show as few as 60 remaining vaquita porpoises in the Gulf of California
The population of vaquita porpoises in the Gulf of California may be down to just 60 individuals, according to conservation advocates, who released the results of recent surveys in a press release last week.
Better monitoring and enforcement of gill net ban needed in Gulf of California
So far, Mexico’s efforts to save the Gulf of California’s endangered vaquita haven’t been enough, according to conservation activists tracking the last-ditch attempt to save one of the world’s most endangered marine mammals. By some estimates, as few as 50 vaquita remain.
Study tracks prey base in Southern California coastal waters
Scientists say the large number of recent juvenile sea lion deaths is probably the result of a combination of factors, including a growing overall population and a decline in high calorie prey in important feeding grounds. The investigation started after large numbers of sea lion pups flooding into animal rescue centers in Southern California the last few years.
The new study took a close look at the abundance of four of the main prey species: sardine, anchovy, rockfish and market squid between 2004-2014. The finding show that both sardines and anchovies — both rich in fat that is vital to the growth of young sea lions — have declined since the mid-2000s in the areas around the Channel Islands where the females forage. That has forced the female sea lions to prey instead on market squid and rockfish, which contain far less fat and fewer calories. Continue reading “Is climate change causing sea lion food shortage?”→