David Shiffman

1 week ago | therevelator.org | David Shiffman

The single greatest threat to the diversity of life in our oceans over the past 50 years, more than climate change or plastic pollution, has been unsustainable fishing practices. In much of the ocean, there is little to no regulation or oversight of commercial fishing or other human activities. That’s part of the reason about a tenth of marine plant and animal species are considered threatened or at risk. It’s also why countries around the world have been creating marine protected areas.

1 week ago | counterpunch.org | David Shiffman

The single greatest threat to the diversity of life in our oceans over the past 50 years, more than climate change or plastic pollution, has been unsustainable fishing practices. In much of the ocean, there is little to no regulation or oversight of commercial fishing or other human activities. That’s part of the reason about a tenth of marine plant and animal species are considered threatened or at risk. It’s also why countries around the world have been creating marine protected areas.

1 week ago | scubadiving.com | David Shiffman

05/06/2025 -  A great hammerhead shark being pulled up via gurny onto the deck for a workup. Courtesy VASMAP, Batten School and VIMS As a shark conservation scientist, one of the most common questions people ask me is, “How are shark populations doing?” To answer this question, it’s important to understand two types of fishery surveys: fishery-independent and fishery-dependent. Fishery-dependent population surveys gather data from fishermen’s catches.

1 week ago | sportdiver.com | David Shiffman

05/06/2025 -  A great hammerhead shark being pulled up via gurny onto the deck for a workup. Courtesy VASMAP, Batten School and VIMS As a shark conservation scientist, one of the most common questions people ask me is, “How are shark populations doing?” To answer this question, it’s important to understand two types of fishery surveys: fishery-independent and fishery-dependent. Fishery-dependent population surveys gather data from fishermen’s catches.

2 weeks ago | downtoearth.org.in | David Shiffman

The coral reefs of Palmyra Atoll, part of Pacific Islands Heritage Marine National Monument, provide nurseries for many fish species. The single greatest threat to the diversity of life in our oceans over the past 50 years, more than climate change or plastic pollution, has been unsustainable fishing practices. In much of the ocean, there is little to no regulation or oversight of commercial fishing or other human activities.