Tag Archives: illegal fishing

What Shrimp and Beef Have in Common? carbon footprint

Shrimp farms tend to occupy coastal land that used to be covered in mangroves. Draining mangrove swamps to make way for aquaculture is even more harmful to the atmosphere than felling rainforest to provide pasture for cattle. A study conducted in 2017 by cifor, a research institute, found that in both these instances, by far the biggest contribution to the carbon footprint of the resulting beef or shrimp came from the clearing of the land. As a result, CIFOR concluded, a kilo of farmed shrimp was responsible for almost four times the greenhouse-gas emissions of a kilo of beef

Eating wild shrimp is not much better: catches are declining around the world as a result of overfishing. Trawlers can pull as much as 20kg of by-catch from the sea for every kilo of shrimp. And reports abound of the appalling treatment of workers on shrimp-fishing vessels, including human-trafficking and child labour. When UN investigators interviewed a sample of Cambodians who had escaped virtual slavery on Thai fishing boats, 59% of them reported seeing fellow crew-members murdered by the captain.


Most of the world’s shrimp and prawns come from Asia. The continent accounts for 85% of the farmed sort and 74% of the wild catch. Global sales were around $45bn in 2018 and are thought to be growing by about 5% a year. But the industry is controversial, not just because of its part in global warming. Razing mangroves also leaves coastal regions vulnerable to flooding. Many shrimp farms are unsanitary; ponds often have to be abandoned after a few years because of problems with disease and pollution.

All this has given one Singaporean company a brain wave. “Farmed shrimps are often bred in overcrowded conditions and literally swimming in sewage water. We want to disrupt that—to empower farmers with technology that is cleaner and more efficient,” says Sandhya Sriram, one of the founders of Shiok Meats. The firm aims to grow artificial shrimp, much as some Western firms are seeking to create beef without cows. The process involves propagating shrimp cells in a nutrient-rich solution. Ms Sriram likens it to a brewery, disdaining the phrase “lab-grown”….The hitch is that producing shrimp in this way currently costs $5,000 a kilo.

Excerpts from How artificial shrimps could change the world, Economist, Feb. 28, 2020

Fishing in the Arctic: Banned

The Agreement to Prevent Unregulated High Seas Fisheries in the Central Arctic Ocean (CAO) in Ilulissat, Greenland was adopted on October 3, 2018.  The historic agreement represents a collaborative and precautionary approach by ten countries to the management of high seas fish stocks in the Central Arctic Ocean. The agreement covers approximately 2.8 million square kilometers, an area roughly the size of the Mediterranean Sea.

Ice has traditionally covered the high seas of the central Arctic Ocean year-round. Recently, the melting of Arctic sea ice has left large areas of the high seas uncovered for much of the year. The Agreement bars unregulated fishing in the high seas of the central Arctic Ocean for 16 years and establishes a joint program of scientific research and monitoring to gain a better understanding of Arctic Ocean ecosystems. It also authorizes vessels to conduct commercial fishing in the CAO only after international mechanisms are in place to manage any such fishing. This effort marks the first time an international agreement of this magnitude has been proactively reached before any commercial fishing has taken place in a high seas area.

Signatories include the United States, Canada, the Kingdom of Denmark, the European Union, Iceland, Japan, the Republic of Korea, the Kingdom of Norway, the People’s Republic of China, and the Russian Federation.

Excerpt from U.S. Signs Agreement to Prevent Unregulated Commercial Fishing on the High Seas of the Central Arctic Ocean, NOAA Press Release, Oct. 3, 2018

Stop it: Illegal, Unreported and Unregulated Fishing

Large ships are supposed, by international agreement, to be fitted with what is known as the Automatic Identification System (AIS), and to keep it on all the time. Arrangements for small ones vary from country to country, but most require some sort of beacon to be fitted to craft sailing in their waters.

The beacons’ main purpose is to avoid collisions. But monitoring them can also give away who is fishing nefariously, if you develop the software to sift through masses of location data looking for patterns. Beacon-watching has also helped identify hot spots for the transfer of catches at sea from IUU fishing boats to refrigerated cargo vessels, a practice which conceals the origin of a catch. Transshipment hotspots have been identified in this way off west Africa and Russia, and in the tropical Pacific. But beacons can be (and are) switched off.

Global Fishing Watch—a collaboration between Oceana, a conservation group, Google, a division of Alphabet, and Sky Truth, a charity that uses remote sensing to monitor environmental problems—has turned to America’s National Oceanic and Atmospheric Administration for help. NOAA has long collected satellite data on clouds. These are available to outsiders at no cost. The agency’s Visible Infrared Imaging Radiometer Suite consists of two sensors, each mounted on a different satellite. Between them, these sensors photograph the entire planet every 24 hours. Though their target is cloud cover, they can also see small, bright sources of light. Some of these give away the activities of fishermen. Many marine species are attracted to light, so it is common practice to shine floodlights into the water.

To find those illegals who do not so conveniently illuminate their activities Global Fishing Watch turns to satellite radar data. These are gathered mainly by private companies for sale to customers who want to do things like monitor the logging of forests. Global Fishing Watch, too, has to pay for them. Radar data have proved themselves useful, though. In 2016, for example, radar turned up a fleet of ships off the coast of Chile that had their AIS turned off…. The European Union’s Sentinel satellites now provide radar data free of charge. Global Fishing Watch is working on an automated vessel-detection system that uses these data.

Better detection would certainly help limit IUU fishing. The Port State Measures Agreement, introduced in 2016 and now ratified by 55 countries, is supposed to stop vessels engaged in such fishing from landing their catches. But ports can act against a vessel only if they know what it has been up to. The technology being developed by Global Fishing Watch makes it possible to report offenders quickly, thus giving port authorities time to act.

The future, moreover, looks brighter still—or dimmer, if you are an illicit fisherman. CubeSats, satellites the size of a loaf of bread, are lowering the cost of Earth observation.  making it feasible to track all boats continuously.

Excerpts from Netting the Crooks: Curbing Illegal Fishing, Economist,  Sept. 8, 2018

Fish Poachers in Africa

In Sierra Leone nearly half the population does not have enough to eat, and fish make up most of what little protein people get. But the country’s once-plentiful shoals, combined with its weak government, have lured a flotilla of unscrupulous foreign trawlers to its waters. Most of the trawlers fly Chinese flags, though dozens also sail from South Korea, Italy, Guinea and Russia. Their combined catch is pushing Sierra Leone’s fisheries to the brink of collapse.

Sierra Leone is not alone in facing this crisis. According to the UN’s Food and Agriculture Organisation, 90% of the world’s fisheries are dangerously overexploited. The Africa Centre for Strategic Studies, a think-tank funded by America’s defence department, reckons that about a quarter of fish caught off Africa’s shores are taken illegally.

Excerpt from Poachers afloat: Why Sierra Leone is running out of fish, Economist, Dec. 16, 2017

Data Against Fish Poachers

Australia is at the forefront of efforts to combat poaching. Its patrol ships have chased illegal trawlers almost as far as South Africa, a distance of 4,600 miles, to stop the plunder of prized Patagonian toothfish—sold in the U.S. as Chilean sea bass.  Australian government scientists and Vulcan Inc., Mr. Allen’s private company, have developed a notification system that alerts authorities when suspected pirate vessels from West Africa arrive at ports on remote Pacific islands and South America.

The system relies on anticollision transponders installed on nearly all oceangoing craft as a requirement under maritime law. These devices are detectable by satellite.  A statistical model helps identify vessels whose transponders have been intentionally shut off. Other data identifies fishing boats that are loitering in risk areas, such as near national maritime boundaries…

“On one hand you can’t see them [if their transponder is switched off], but on the other it means they’ve just flagged themselves as avoiding surveillance, and as a risk indicator, that’s at the top of the list,” he said…

And a third of all fish sold in the U.S. is believed to be caught illegally. Seafood consumption in wealthy nations has soared in recent decades, increasing reliance on imports. Between 1980 and 2014, U.S. seafood consumption rose 60%, with imports now meeting 90% of the demand, according to Global Fishing Watch and the World Wildlife Fund….

Illegal fishing causes commercial losses of up to $23 billion a year world-wide, according to the U.N….

The researchers’ satellite-based tracking tool will begin operating in October 2017 and will be free to access. It was set up in response to a treaty aimed at eradicating illegal fishing that came into force on June 2016.The Agreement on Port State Measures…

China is the world’s largest seafood producer, followed by Indonesia, the U.S. and Russia. The most critical area for poaching is off the coast of West Africa, where illegal, unauthorized and unregulated fishing accounts an estimated 40% of fish caught, according to the World Ocean Review. Other areas of concern include the western and southern Pacific and the southwest Atlantic. Illegal trawlers contribute to overfishing that threatens marine ecosystems and food security in some of the poorest countries.

Last year, Argentina’s coast guard opened fire on and sank a Chinese trawler that was fishing illegally in its waters. South Korea’s coast guard fired on Chinese poachers several months later.  Australian authorities have said geopolitical tensions in the South China Sea, a rich fishing ground, may be driving more illegal fishing vessels into the South Pacific from China, Taiwan and Vietnam.

Excerpts from Trawling Scientists Find a Better Way to Reel In Illegal Fishing, Wall Street Journal, June 26, 2017

Endangered Fish as Delicacy

The most recent estimate puts the remaining numbers of vaquita, a porpoise found only in the waters of the Sea of Cortés, Mexico, at just 60, down from 100 two years ago…. The vaquita has been a victim of the shrimp and totoaba fisheries, showing up as bycatch in gillnets.

The totoaba is also an endangered species but its swim bladder is a delicacy in China, selling for as much as US $5,000 per kilogram in the U.S. and a great deal more in China. The matter has been taken up by Agriculture Secretary José Calzada Rovirosa with Chinese officials in an effort to stop the illegal consumption of the bladders.  Vaquitas are not only being killed by totoaba fishing. When illegal fishermen are pursued by the Mexican Navy, they often cut their nets and set them adrift, becoming an additional threat to the porpoise.

Removing these “ghost nets” will be one of the steps taken before the implementation of an assisted breeding program, said marine mammal expert Lorenzo Rojas Bracho from the National Institute of Ecology and Climate Change.

There are doubts about the feasibility of a breeding program as well as concerns about the risk. “We have no idea whether it is feasible to find, capture and maintain vaquitas in captivity much less whether they will reproduce,” said vaquita expert Barbara Taylor of the U.S. National Oceanic and Atmospheric Administration.

Excerpt from Assisted breeding for endangered vaquita?, Mexico News Daily, June 28, 2016

How to Catch Illegal Fishers: port state measures

The Agreement on Port State Measures to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing (the Agreement)  entered into force on June 5, 2016.  The main purpose of the Agreement is to prevent, deter and eliminate illegal, unreported and unregulated (IUU) fishing through the implementation of robust port State measures. The Agreement envisages that parties, in their capacities as port States, will apply the Agreement in an effective manner to foreign vessels when seeking entry to ports or while they are in port. …

The Agreement provides an opportunity for port States to check and verify that vessels not flying their flags and that seek permission to enter their ports, or that are already in their ports, have not engaged in IUU fishing.  The Agreement also enhances flag States control over vessels as the Agreement requires the flag State to take certain actions, at the request of the port State, or when vessels flying their flag are determined to have been involved in IUU fishing….

Furthermore, the Agreement’s seeks to prevent the occurrence of so-called ports of non-compliance (formerly known as ports of convenience). Countries operating ports of non compliance do not regulate effectively the fishing and fishing-related activities that take place in the ports, including determining whether IUU-caught fish are landed, transshipped, processed and sold in the ports. Ratifying and acceding to the Agreement and implementing its measures robustly will reduce the number of ports of non compliance and opportunities for vessels to dispose of IUU-caught fish with relative ease. Port state measures are a cost-effective tool in ensuring compliance with national law and regional conservation and management measures adopted by RFMOs. This is because port States do not have to expend time, effort and resources in monitoring, pursuing and inspecting vessels at sea. Port inspections and controls are very much cheaper and safer than alternative, more conventional air and surface compliance tools. Port State measures, if used in conjunction with catch documentation schemes, have the potential to be one of the most cost-effective and efficient means of combating IUU fishing.

The Agreement’s most potent effect in terms of its potential to curb IUU fishing is that through the implementation of its provisions, including those relating to denial of access to ports, port inspections, prohibition of landing, and detention and sanction, can prevent fish caught from IUU fishing activities from reaching national and international markets. By making it more difficult to market fish through the application of port State measures, the economic incentive to engage in IUU fishing is reduced. In addition, many countries have also decided to prohibit trade with countries that do not have port state measures in place.

Excerpt from Food and Agriculture Organization  FAO Website.