Coral Reefs & Ocean Biodiversity

Study Finds Ocean Impacts Nearly Double Economic Cost of Climate Change. (2026). Ucsd.edu. https://today.ucsd.edu/story/study-finds-ocean-impacts-nearly-double-economic-cost-of-climate-change

 

This article explains a new study which, unlike others, includes the study’s damages to the ocean in order to determine the “social cost” of carbon, helping researchers measure the economic harm caused by carbon emissions. Researchers from the Scripps Institution of Oceanography at UC San Diego discovered that when ocean impacts are included, carbon’s social cost doubles. This ultimately shows how climate change significantly impacts the temperature and acidity of ocean water. These impacts further lead to damaging marine ecosystems such as coral reefs and fisheries. In previous years, these issues have commonly been ignored, even though the world population depends on the oceans in many ways such as for food and job opportunities. Researchers have created a “blue” social cost of carbon which helps individuals grasp the severity of our oceans health by putting a price on hypothetical losses that come from these impacts.  These results show how climate change causes economic and social harm and provide an alternative tool to help improve environment policy making.

 

This article is fascinating to me because it puts a dollar value on ocean damage that is commonly ignored when talking about environmental issues. This approach reminds me a lot of the carbon taxes that we have learned about in class, and I believe that this would be a beneficial approach to look at because it makes the problems more visible to companies and policy makers. This article connects to environmental science because it discusses the comparison between climate change effects and economics in order to highlight damages done by humans. This “Blue” social cost idea of carbon shows how the negative impacts of climate change on environments affects human society and ecosystems, especially through biodiversity loss. Overall, this article displays a parallel between environmental science and economics and how they can help fix environmental problems through policies. 

US secures record bluefin tuna quota increase

NF Staff. (2025, December 22). US secures record bluefin tuna quota increase. National Fisherman. https://www.nationalfisherman.com/us-secures-record-bluefin-tuna-quota-increase

 

The United States secured the largest single-year increase in its Atlantic bluefin tuna quota during the 2025 International Commission for the Conservation of Atlantic Tunas (ICCAT) meeting. US negotiators secured an extra 231 metric tons of bluefin tuna, which is about a 17% increase in the total amount US fishermen are usually allowed to catch each year. This decision gives both commercial and recreational fishermen more opportunities while still following international rules for sustainable fisheries and fishing. In addition to the increased limit of fish, the US worked with countries to discuss future management of tuna stocks, including using research and tagging studies to better understand where the tuna populations are and how they move. The meeting also addressed other species, like swordfish and skipjack tuna, and focused on enforcing fair and safe fishing practices.

 

This article highlights sustainable fishery management, a key part in protecting ocean ecosystems. By increasing the bluefin tuna catch limit for the US, the US has to balance providing more seafood to our markets while making sure tuna populations remain healthy for the future. I find this interesting because the research on tuna behavior and population trends is helping guide international decisions, and collaboration with other countries ensures these policies are being carried out, combining the science aspect with the policy aspect of fishery management. It’s a reminder that environmental science is used to  make practical choices that affect both people and the planet, speaking to the importance of it in our world. Also, focusing on specific species of fish is super important because the circumstances for each species is different and it shows the US’s efforts to maintain biodiversity and help each individual species of fish.

Combating illegal fishing and leveling the playing field for our Nation’s Fisheries:\ Opportunities for U.S. leadership

Masterton, M. (2025). Combating illegal fishing and leveling the playing field for our Nation’s Fisheries:\ Opportunities for U.S. leadership. NRDC. https://www.nrdc.org/bio/molly-masterton/combating-illegal-fishing-and-leveling-playing-field-our-nations-fisheries

 

Illegal, unreported, and unregulated (IUU) fishing is a major global problem that harms ocean ecosystems, depletes fish populations, and distorts seafood markets. IUU fishing accounts for roughly one third of the world’s catch and is linked to human rights abuses in the seafood industry. While it occurs worldwide, its effects are felt in the US through reduced seafood availability, unfair competition for US fishermen, and economic losses estimated in the billions. Not only does IUU fishing harm marine ecosystems, but it also involves labor abuses and undermines national security by exploiting ports and maritime infrastructure. In response, the US has implemented policies like the Seafood Import Monitoring Program (SIMP), trade enforcement measures, and international agreements to ensure only legally and sustainably harvested seafood enters the US. These efforts involve cooperation between multiple federal agencies, the Coast Guard, and foreign governments to combat unsafe and unfair fishing practices.

 

This is directly related to environmental science because it shows how human actions, like illegal fishing and poor regulation, impact marine ecosystems and the sustainability of fish populations. By addressing IUU fishing and ensuring that only legally and sustainably caught seafood enters US markets, the government is helping to protect ocean biodiversity, prevent overfishing, reduce harm to marine mammals, and be an example for the global community. I think it’s important that the US takes a strong leadership role, not just to protect US fisheries and fishermen, but also to maintain healthier ecosystems and seafood supplies globally for the future. I also feel that programs like SIMP are a smart way to use science and data to make better environmental choices and I hope that continued enforcement and monitoring can create real long-term improvements. I was pretty surprised that the US was such a great example for global fisheries, I thought that it would honestly be a lot worse since we often value the cheaper, imported items, so I’m proud that we are making such a positive impact and I hope we continue to do so.

US to block seafood imports from 240 fisheries failing to meet Marine Mammal Protection Standards

Gairn, L. (2025, September 8). US to block seafood imports from 240 fisheries failing to meet Marine Mammal Protection Standards. WEAREAQUACULTURE. https://weareaquaculture.com/news/fisheries/us-to-block-seafood-imports-from-240-fisheries-failing-to-meet-marine-mammal-protection-standards

 

Starting in January 2026, the United States banned seafood imports from 240 fisheries across 46 countries that do not meet US marine mammal protection standards. This is part of the Marine Mammal Protection Act (MMPA) which requires foreign fisheries to demonstrate that their fishing practices prevent harm to marine mammals and meet the American protection standards. The National Oceanic and Atmospheric Administration (NOAA) Fisheries reviewed over 2,500 fisheries across more than 130 countries, banning the ones that didn’t meet the standards. The 240 banned fisheries can later reapply if they improve their operations. This US policy is intended to protect marine mammals, encourage global sustainable fishing practices, and ensure that American fishermen have fair competition. “Bycatch” is the unintentional capture of marine mammals in fishing gear, which US fishermen have strict rules against, which is why the MMPA ensures it is spread globally or else the fisheries cannot export to the United States.

 

This relates to environmental science because it bans imports from fisheries that harm marine mammals, directly protecting species that are part of ocean ecosystems. Additionally, it considered the unintended consequences of fisheries through “bycatch” and this article directly conveys how the United States is making a global effort to limit these consequences. I think this is a super important step by the US government since it holds foreign fisheries accountable for their environmental impacts while also helping local American fishermen who are also being held to these high standards of fishing. Protecting these vulnerable mammals is essential to the health of our ecosystems. Although this may negatively impact some foreign fisheries since they will face economic challenges, I think it’s much more important to prioritize ecosystem health and sustainable practices across the globe, especially as such a large and impactful country.

Southern governors demand local control over Red Snapper Management, criticize Federal Oversight

FOX 5 Atlanta Digital Team. (2025, June 5). Southern governors demand local control over Red Snapper Management, criticize Federal Oversight. FOX 5 Atlanta. https://www.fox5atlanta.com/news/southern-governors-demand-local-control-over-red-snapper-management-criticize-federal-oversight

 

Governors from Georgia, Florida, and South Carolina are requesting federal approval to manage red snapper and other reef fish locally, arguing that federal oversight has failed coastal communities and harmed local economies. They claim federal regulations, such as Amendment 59 to the Fishery Management Plan for the Snapper-Grouper Fishery, are based on flawed data and restrict access to fisheries despite increasing red snapper populations and that they are no longer being overfished. The governors cited Florida’s success in the Gulf as a model, where state control expanded the recreational red snapper season from 3 days to 127 days. They are requesting an Exempted Fishing Permit (EFP) from the federal government to allow similar state-led management in the South Atlantic, emphasizing benefits for local economies, anglers, and the communities.

 

This article shows how environmental science and fishery management are closely connected, because decisions about who controls fishing directly affects fish populations and ecosystems. By giving states like Florida, Georgia, and South Carolina more control over red snapper management, the states can respond quicker to changes in fish populations using their own local data rather than relying on federal rules that may not reflect the current conditions of marine life. I think this approach could help prevent overfishing while also supporting local economies, but it also comes with risks if states don’t actually carefully monitor the fishery as they are promising to do. I think that the federal government could still play a role in monitoring the fisheries to prevent that from happening. For instance, the states can take over, but the federal government can also continue to check on the data as well. This management plan definitely does balance human needs along with environmental needs, showing that the two can coexist if done correctly. This also highlights how science and policy need to work together because just because fish are abundant does not mean overfishing isn’t still a threat and careful management is needed to keep the environment stable.

How America’s Fisheries Rebounded from Collapse and Overregulation

Morrison, D. (2025, November 7). How America’s fisheries rebounded from collapse and overregulation. USA Today. https://www.usatoday.com/story/news/nation/2025/11/07/fishermen-activists-join-forces-crazy-fish-tale/87122579007/

 

For decades, US fisheries were nearly collapsing due to overfishing and rigid regulations that harmed both fish populations and fishermen. Under the old management system, fishermen were limited by short seasons and daily catch limits, forcing them into dangerous “races for fish” where everyone fished at the same time regardless of the weather or market conditions. According to the article, this led to depleted fish stocks, unsafe working conditions, and financial instability. In 2025, President Donald Trump signed an executive order aimed at reducing unnecessary regulations while strengthening sustainable fisheries. An unexpected partnership between commercial fishermen, environmental organizations, and federal regulators led to the adoption of a “catch shares” system. This approach limits the total seasonal catch while allowing fishermen flexibility in when and how they fish, a freedom they weren’t offered before. As a result, fish stocks such as red snapper and yellowtail flounder have significantly rebounded, and more than 50 US fish stocks are now recovered or rebuilding. Commercial fishing jobs also increased substantially since they lowered their operating costs, especially their use of fuel, and increased their profits. However, the previous decline of fisheries have impacted the American market which is now filled with cheap foreign imported fish that are constantly being recalled, but should be switching back to real American seafood.

 

This article highlights how modern fishery management has transformed US fisheries into one of the most sustainable systems. The collapse of US fisheries was a clear example of how overexploitation and poorly designed regulations can disrupt our environment and our economy. The catch shares system reduced fuel use by allowing fishermen to fish less frequently and more efficiently, lowering costs while increasing profits. It also shows that conservation does not have to come at the expense of fishermen’s livelihoods and instead it can make fishing safer, more profitable, and more efficient. I think it is important that this recovery has been bipartisan, as fish are not affected by political divisions. I also found the discussion about buying American seafood interesting, especially as the US market had become dominated by cheaper foreign imports that are often recalled for safety concerns. While American seafood is more expensive, I think it’s so much more important to support local fisheries that also provide higher quality fish and are more sustainable for the environment. Overall, this article shows that environmental science based fishery management is essential for protecting marine ecosystems and allowing fisheries to remain productive for future generations.

How New Pop-Up Gear is Helping California’s Crab Fishery Protect Whales

Taxin, A. (2025, April 14). New Gear could keep California crab fishermen on the water longer, and whales safe. AP News. https://apnews.com/article/california-fishing-whales-crabs-popup-dungeness-b456ecbf07e38f6143ac27db98ed5aa4

 

This article discusses the use of innovative “pop-up gear” in California’s Dungeness crab fishery to reduce the risk of whale entanglements. Due to an increase in whale entanglements over the past couple years, especially with endangered humpbacks, California regulators have shortened the commercial crab season, negatively affecting fishermen. In response, a pilot program started in 2023 introducing remote operated gear that eliminates vertical buoy lines, allowing crab pots to be retrieved safely from the ocean. The gear uses a universal tracking system since the gear isn’t visible from the surface, but when overcrowded, the technology can’t be used as effectively, therefore the gear is currently used in spring seasons when whales are most present. But with time, it may be approved for all seasons by 2026. Although expensive and initially controversial between fishermen, the gear has shown promise in allowing fisheries to continue with less environmental harm. 

 

This article is an example of how environmental science and fishery management must evolve to solve ecological problems. By presenting a new form of technology that still allows fishermen to pot crabs despite the growing issue of whale entanglements caused by traditional crab fishing methods. The development of the pop up gear not only protects the ecosystem, but also preserves the fishermen’s livelihoods. I find this gear very important for the future of environmental science and fishery management, especially because it shows that conservation and industry can coexist. While I understand the financial concerns of the fishermen and the new expensive gear, I believe that protecting our wildlife is much more important, therefore if the technology continues to be as effective as it appears to be, it should be widely supported. Additionally, this gear and technology will pave the way for future solutions for the protection of our wildlife. Ultimately, this article is super important to the management of fisheries and the future of sustainable commercial fishing.

Salmon Season Returns, Partially: California Reopens Recreational Fishing Amid Ongoing Commercial Ban

Gaines, T. (2025, April 16). Recreational salmon fishing is coming back to California. KTVU FOX 2 San Francisco. https://www.ktvu.com/news/recreational-salmon-fishing-is-coming-back-california

 

In June of 2025, California reopened recreational salmon fishing in ocean waters for the first time since 2022, according to the California Department of Fish and Wildlife. Fishing will be allowed during short windows in summer and early fall, with harvest caps of 7,000 in summer and 7,500 Chinook salmon in the fall. This marks a cautious step forward after multiple years of closures because of dangerously low salmon populations due to drought and climate change. However, commercial salmon fishing remains closed for a third consecutive year due to continued low quantity and poor reproduction rates. State officials emphasized that recent wet winters have not yet translated into stronger fish populations. While recreational anglers regain some access, the commercial section continues to face economic challenges. Industry leaders have expressed disappointment, stating that the current salmon levels do not support profitable or sustainable fishery for commercial operations.

 

By allowing limited recreational fishing while continuing to protect small Chinook populations from commercial fishing is a hard but necessary decision. It’s clear that drought, climate change, and past water management practices have left salmon vulnerable and rebuilding is going to take a lot of time so it’s important to let these species actually have a chance to rebuild. I do feel for commercial fishers who are struggling to find ways to make money, but I wonder what their impact on the climate has been, especially because their operations take a massive toll on marine ecosystems. It is unfair for them to be extremely angry if they are contributing to this ecosystem damage and have lacked any real motivation to help these fish populations succeed so that they can too. Additionally, I think the way that California has handled this is very important for future fishery management styles. Banning 3 years of commercial fishing is a major step towards environmental success and it is clear that the state is trying to help and protect our wildlife even if it is not as successful as they expect it to be.

How Channel Islands MPAs Are Reshaping California’s Fisheries

Canon, G. (2025, May 10). The hidden underwater eden of “California’s Galapagos”, where seals and grizzly bear-sized bass reign. The Guardian. https://www.theguardian.com/us-news/2025/may/10/channel-islands-conservation-oceans

This article examines how marine protected areas (MPAs) around California’s Channel Islands have significantly impacted local fisheries and fish populations. Implemented to restore marine ecosystems, the MPAs prohibit fishing in certain areas, allowing species such as the giant sea bass, sheephead, and lobster to rebound. Data reveals that biomass inside MPAs has increased by 80%, fish species diversity rose by 50%, and lobster production outside of the protected areas grew by 225%. Commercial fishers are largely supportive of the protection, but are worried that more of their fishing areas will be affected. The California Fish and Game Commission is conducting a 10 year review of these protections, weighing 20 stakeholder proposals that suggest expansion, reduction, or alteration of MPAs. The decisions could shift access for commercial fishing. As California continues to face pressure from climate change and politics, researchers stress that protection could enhance biodiversity and sustainability for future generations.

 

I think that the fishery management that has been executed around California’s Channel Islands is a significant model for fishery management and conservation of marine life. It highlights that MPAs are not only protecting marine habitats, but have benefited surrounding fisheries, specifically with the increase in lobster production. I think that these well managed MPAs can actually support the fishing industry by allowing species to reproduce and grow larger before entering commercial fishing areas. I agree with the commercial fishermen though that you cannot revoke all areas, because that loses economic opportunities for these areas. I also think that this is highly influenced by politics, because in the article they mention that President Trump has revoked regulations on 500,000 square miles of federal waters, which is a major threat to the environment and the conservation of these species. To completely open up all waters to commercial fishing is eventually going to harm the species living in these areas along with even eradicating the species’ completely in the future.

California Closes Fish Hatchery Amid “Complete Disaster”

LaFever, M. (2025, May 6). Amid “complete disaster,” California pulls plug on vital hatchery. SF Gate. https://www.sfgate.com/northcoast/article/california-shuts-down-mad-river-hatchery-fishermen-20311544.php

 

The California Department of Fish and Wildlife (CDFW) announced the closure of the Mad River Fish Hatchery in Humboldt County, ending decades of hatchery support for the area’s threatened steelhead trout population. The hatchery, which released approximately 150,000 steelhead annually, is shutting down because of federal regulations, damaged infrastructure, and a costly repair of $40 million. This decision has caused strong criticism from local fishing guides, conservationists, and community members fearing that the steelhead population and economy will suffer. Advocates argue that the hatchery has provided crucial support for steelhead recovery, sport fishing, youth engagement, and most importantly, the local economy. The CDFW claims that the hatchery’s benefits are limited and may even bring negative genetic impacts to the wild steelheads. The hatchery has remained open for public river access, but the operations have stopped, and there is uncertainty for the future of the local environment, community, and economy. 

 

This article highlights the complexity of fishery management, sustainability, and the environment. With the hatchery, the species is able to continuously recover and reproduce to support the demand for fish and the environment, yet it poses a threat to the lack of genetic difference for the wild fish along with funding on conservation efforts. I understand why they are not able to repair the hatchery for $40 million , but I think that it is unfair to simply shut down an entire hatchery without any alternative plan, especially for a threatened species like the steelhead. It is also easy to dismiss the importance of a hatchery, yet it is an extremely beneficial process for threatened species especially in areas where the community depends on the species to support their economy. I think there should have been more community involvement in the decision and more active decisions about the future of the species and the river moving forward.