License to Kill (Why Krill Fisheries Are In Danger)

Two days ago, the gavel came down in an adjudication decision which may, more than any other recent hammer-strike, determine the future of fishing and sustainability of krill fisheries: The Marine Stewardship Council (MSC) officially bestowed its blue-and-white fish-check label to a massive factory operator that targets Antarctic krill.

This is not a good thing.

Antarctic krill are tiny shrimp-like crustaceans that cluster in vast multitudes (known as “blooms”) in the waters of the Southern Ocean.  They form a critical building block in the oceanic food web: small fish consume the krill before being eaten themselves by seals, penguins, toothfish, and other animals. 

Krill are also a primary source of nourishment for migratory whales — in fact, the majority of the world’s baleen whales journey to the southern ocean to feed on krill and replenish their energy supplies after depleting their reserves during their mating and calving seasons.

While krill in their vast numbers do seem on the surface to be an “inexhaustible resource,” one would hope that, by this time, we have learned that this mindless assumption will never be accurate in regard to any of the inhabitants of our finite planet.  There is no such thing as an inexhaustible resource.  Ask any great auk or passenger pigeon, they’ll tell you.

Oh, wait — you can’t ask them.

Because there aren’t any left.

Because there’s no such thing as an inexhaustible resource.

Trouble bath

There are a few things that we are certain of about krill.  The first is that the tiny animal, like many other sea creatures — especially crustaceans — is vulnerable to climate change, especially through the ocean acidification trends resulting from the rising levels of carbon dioxide in our atmosphere.  Nowhere in the Marine Stewardship Council certification system are the potential effects of climate change even discussed, let alone taken into account by the methodology.  Strike one.

Next, we know that Antarctic krill exist in the Southern Ocean – an area adjacent to a land mass that is uninhabited by humans.  The simple fact that we are sending fishing vessels into this area bespeaks an unsustainable paradigm, known as finite expansion. 

There is a certain amount of ocean on this planet.  That we continue to fish farther, deeper, and longer simply underscores the fact that we are not approaching the management of our oceanic resources from a sensible and comprehensive standpoint that would account for the idea that one day – one day quite soon, actually – these fishing boats are going to bump up against the ice shelf.  No more expansion.  What then? 

The Marine Stewardship Council methodology again fails to even consider these perspectives, concentrating instead on discrete management techniques that do not consider the idea that sustainability is more than a fishery-by-fishery label – it is a way of looking at the world.  Strike two.

Little critter, big mystery

Finally, we know that we have only a very rudimentary understanding these tiny animals.  Krill have been studied only cursorily and we have almost no knowledge of their life history and behavior.  It is irresponsible in the extreme to proceed with the certification of a fishery that is so cloaked in mystery – we have no idea what kind of damage we could be doing.  Strike three.

And yet in the face of all these worries, the rubber stamp comes down and the MSC pronounces the krill fisheries to be sustainable.  Let’s not forget that vehement objections to this certification have already been lodged by the Pew Environment Group and the Antarctic and Southern Ocean Coalition.  These objections were overruled — but let us not forget that the three strikes listed above were not taken into account in the decision, as they are simply not part of the MSC methodology… and if something isn’t part of the system, it apparently doesn’t have any relevance on reality.  Or so the adjudication decision would lead one to believe.

In search of pink gold

There is a conceptual concern here too.  The certification of this fishery gives an unofficial nod to the basic idea that vacuuming up the tiny life forms forming the foundations of the oceanic ecosystem is an acceptable practice.  In reality, it’s not.  Even the United States fishery management authorities banned fishing for krill in US waters, specifically to allow it to remain in the ocean as a food source for other organisms.  Legitimizing and expanding Antarctic krill fishing is simply transferring our unceasing resource demand to a hitherto unrecognized protein source.  This is not the way to move forward – in fact, pulling too hard on this loose yarn just might unravel the whole tapestry.

The certification of krill makes no sense.  It’s a minuscule building-block animal on the other side of the world that simply doesn’t belong to us.  We can’t even eat it – the krill will just be used to make oil, fish food, and other rendered products.  And for this, we may end up short-changing whales, toothfish, seals, and other animals – all because the powers that be refuse to look at the entire issue from a larger perspective. 

Fishing for krill will not feed the world — but it just might end up starving it.

source https://sustainablesushi.net/krill-fisheries-in-danger/

What Exactly is Sushi?

Sushi is a hugely popular Japanese cuisine that is a hit with people all over the world. Sushi is a fast and enjoyable snack or meal that you might appreciate. There are several distinct types of sushi and preparation methods, each with its own set of flavors and characteristics. So what exactly is sushi?

What is sushi?

In Japanese, the word sushi means “sour rice” (that’s because the rice is traditionally moistened with rice vinegar). In fact, sushi evolved over time — it comes from the word “su-meshi.” “Su” means vinegar and “meshi” in this context means “rice.” However, over time su-meshi got shortened to “sushi”.

Most people outside of Japan automatically associate raw fish with sushi because most Japanese restaurants serve raw seafood dishes like sashimi, but there are plenty of different types of sushi which include items such as crab meat, octopus, eel, squid, sea urchin, etc.

What exactly is sushi?
What exactly is sushi? Simply put, it’s sour rice — though most people think of fish. Photo by Jakub Dziubak via Unsplash.

The history of sushi

Sushi was first made in southeast Asia to extend the shelf life of fish by putting it in fermented rice. According to a Chinese dictionary from the 4th century, if you search for what is sushi, you’ll find that it’s pickled fish with rice and salt. People discovered that salted fish placed into fermenting rice underwent a pickling process and was preserved.

Sushi of this sort was developed first. Lactic acid bacteria are discharged when cooked rice begins to ferment. The salt interacts with the bacilli to turn the fish pickled.

The history of sushi
Sushi arose in South East Asia as a way to preserve fish. Photo by Frank Zhang on Unsplash.

How is sushi made?

Sushi is a Japanese dish that features tiny pieces of raw fish wrapped in rice and seaweed. The seaweed, known as nori, is gathered using submerged bamboo nets. Sushi produced by robots isn’t as good as hand-made sushi. The best sushi is created by selecting certain types of fish with the highest fat content, color,

The sushi chef chops the fish into tiny pieces and combines them with spices such as ginger root. To flavor sushi rolls, wasabi and soy sauce are frequently employed. The rice used to wrap the fish and spices is flavored using a vinegar produced from fermented rice. Finally, some of the nori is added to the roll.

How sushi is made
How sushi is made depends on what type of sushi you are looking for. Photo by Epicurrence on Unsplash

The different types of sushi

There are many different types of sushi and methods of preparation.

  • Nigiri – A topping of fish served on top of sushi rice
  • Maki – Fish surrounded by rice and seaweed
  • Uramaki – Seaweed-enwrapped fish with rice on the outside
  • Temaki – Cone-shaped handcrafted sushi
  • Sashimi – Fish served plain or with no rice or seaweed, often sliced very thin

Although sashimi is not technically sushi, since there’s no rice, we include it because many people associate it with sushi. Here’s a helpful guide that lays out the difference between sashimi vs sushi.

Different types of sushi include nigiri, maki and sashimi
Wondering what exactly is sushi? Well, there are many different types of sushi include nigiri, maki, and sashimi. Photo by Bladimir Garcia on Unsplash

Can sushi be cooked?

If you’re new to sushi, cooked varieties are a good place to start. Sushi that is cooked includes certain kinds of sushi. A California roll, for example, has imitation crab that has been cooked with avocado and cucumber. It’s always cooked if you order eel sushi.

Can sushi be cooked?
Some of the most popular sushi features cooked seafood. Photo by Riccardo Bergamini on Unsplash.

Can sushi cause illness?

Sushi may cause illness if the fish is contaminated with germs or viruses. It’s doubtful that you’ll become infected with a parasite from the fish in the United States. Fish used in sushi has the same risk of bacterial contamination as other types of meat.

Can sushi make you sick?
Like with any food, you can get sick. But that doesn’t mean sushi isn’t safe. Photo by David Todd McCarty on Unsplash

Sushi grade fish

There is no standard for the use of the term “sushi-grade fish.” When this label appears in a store, it simply indicates that the fish is of excellent quality and that you may eat it raw with confidence. After being caught, fish are flash-frozen on board to eliminate any parasites they might contain.

Sushi has a long and illustrious history, and it’s a delectable dish that many people enjoy. Begin with what you’re most comfortable with and work your way up to trying new kinds of sushi at your local restaurant. If you’re feeling brave, you might give this a try by purchasing high-quality sushi-grade fish, rice vinegar, and rice and seaweed wraps to attempt to create your own.

Sushi grade fish
There’s no such thing as sushi grade fish, however, you should only raw fish from trusted sources. Photo by Marta Filipczyk on Unsplash

source https://sustainablesushi.net/what-exactly-is-sushi/

What Is Sustainability?

Good question… what is sustainability? The concept of sustainability has been bandied about so much that one could see it as almost meaningless. Formally introduced in 1987, it has over the last two decades taken on any number of meanings, many of which are competing and contradictory. It is sometimes said that in a room of 10 people there are 10 different definitions of sustainability.

The word is applied in any number of situations, some appropriate and some otherwise. It’s used by companies to sell products and by environmentalists to boycott the same products. It has become a buzzword, a nonsense term. So maybe it’s best to go back to the basics and start at the beginning.

“Sustainability”, according to Webster’s Dictionary, is defined as:

a) of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged (sustainable techniques) (sustainable agriculture),

b) of or relating to a lifestyle involving the use of sustainable methods (sustainable society).

As the formal definition states, sustainability is about stewarding resources in such a way that they are available in the future. At face value this is fairly straightforward. However, once we apply sustainability more broadly to include environmental, economic, and social components it becomes trickier to define. In truth, for a resource to truly be managed sustainably, it must be utilized in a way that takes all three of these concepts into account.

Environmental sustainability

Environmental sustainability is the main focus of this site. In terms of seafood, concerns over environmental sustainability prompt questions such as:

  • How was this fish caught or raised?
  • Is it intrinsically a vulnerable species, due to a long natural life, low reproductive capability, slow maturation rate, or other characteristics?
  • Are we overfishing the stock?
  • Does a given fish farm pollute or have adverse effects on the environment?
  • Does the manner in which we are catching a particular fish harm other species?
  • Does a given fishery negatively impact the earth or the oceans, or our future ability to catch this fish?

Economic sustainability

Economic sustainability has to do with making resource exploitation feasible for industry and providing sufficient employment. To follow with the fishing example, one might ask:

  • Does this fish reproduce quickly enough to form the basis for a solid industry?
  • Is the industry taking climatic and oceanographic trends into account?
  • Is the fish so valuable that we may over-exploit it?

Social sustainability

Social sustainability is about the people involved in the trade, as well as their history and culture. Sometimes we want to steer clear of environmentally unsustainable resources, but what does that mean for the people involved? Questions might include:

  • If we stop all fishing in this area, how will the local fishermen survive?
  • What do our decisions as consumers mean for the people employed in this fishery?
  • Are these fishermen able to sell their product for enough to provide for their families?

It is extremely difficult to consider all of these dimensions without a deep understanding of all aspects of a resource, the industry that exploits it, and the people that make up that industry. Sustainable Sushi is not an attempt to do so. Rather, this site concentrates on the environmental dimensions of the sushi industry. I acknowledge that this does not address all the components of sustainability, but I feel that it is an important and appropriate place to start.

We live in a society that is only now beginning to take the concept of sustainability seriously. Learning to live with it in mind will not be easy, but we must start now, regardless of the discomfort, if we are to save the last vestiges of our once-great fisheries.

On this tiny planet of ours, sustainability is the future. Today the sushi bar, tomorrow the world.

source https://sustainablesushi.net/what-is-sustainability/

Does Whaling In Iceland Still Happen in 2022?

At Sustainable Sushi, we are always keeping an eye on greater sustainability efforts in our seas. With the whaling season in Iceland normally under way in the summer, it is now appears that for the third year running, no whales will be harpooned in Iceland. This has been a huge win for public awareness campaigns like Animal Welfare Institute‘s anti whaling in Iceland initiative, aptly named “Don’t Buy From Icelandic Whalers” campaign.

The International Fund for Animal Welfare (IFAW), which also campaigns for whale security, is encouraged to see that no endangered fin whales will be butchered this year by the last remaining whaling business in Iceland.

Which company is whaling in Iceland?

Only Kristjan Loftsson and his fin whaling company, Hvalur hf, are still around. According to quota regulations, Loftsson is still enabled to kill fin whales, but has refrained from doing so since 2018. This means we may still see him going whaling next year to protect a brand-new five-year quota.”

Minke whale meat is offered in Iceland, though recently much of it was offered to curious tourists instead of citizens. The most recent survey commissioned by IFAW revealed Icelanders themselves have little appetite for whale meat with only one per cent saying they consume whale meat frequently.

In comparison to the limited domestic market for minke whale meat, fin whale meat has actually been exported to Japan considering that 2013 in a not successful attempt to develop an export market.

Whaling as an issue has disappeared from the political agenda within Iceland. The topic was an infamous theme in Icelandic election campaigns for decades, but given that 2016, it has actually reduced in prominence. Young voters are more worried about environment modification, and the favorable function living whales play in creating healthy communities in the ocean and their contributions towards co2 (CO2) absorption from the environment.

When did Iceland resume commercial whaling?

More than 1,500 fin and minke whales have actually been killed in Iceland since 2003– the year the nation resumed business whaling after a 13-year hiatus.

For several years, Icelandic whalers hunted threatened fin whales along with minke whales. Whilst the fin whale meat was exported to Japan, the majority of the minke whale meat was served to travelers.

The great news is that no whales have actually been killed since the end of the 2018 season. Minke whaling officially ended in 2020.

Between 2006 and 2018, a total of 852 fin whales were killed. This figure is even more tragic, given that the fin whale is the 2nd largest animal in the world. Each whale is special in its own right of course, however an animal this size also plays an important role in maintaining the health of the marine community. As if this was insufficient, the fin whale is noted as ‘threatened’ by the IUCN (International Union for the Conservation of Nature).

Iceland returned to commercial whaling in 2006 and since then has killed more than 1,000 whales. In December 2013, the government of Iceland issued a new five-year quota for fin and minke whales, under which it approved the slaughter of nearly 2,000 whales.

Iceland’s domestic market for whale products is small; it exports most of the whale meat and blubber to Japan, defying a global ban on international commercial trade in whale products.

In Europe and North America, conservation and animal protection NGOs have been encouraging the public not to buy fish from whalers, putting pressure on fish suppliers and retailers to ensure they do not source from Icelandic companies linked to whaling.

Consumer pressure helped end whaling in Iceland

Campaigns like Don’t Buy From Icelandic Whalers were very successful in getting this message out. If you buy seafood, ask your local supermarket, big-box store, wholesale club or restaurant to verify that their seafood products do not come from a source linked to Icelandic whaling.

Dont buy from iclandic whalers ad
Awareness campaigns like DontBuyFromIcelandicWhalers.com were successful in bringing consumer attention to the problem.

If they cannot guarantee to you that the Icelandic seafood products are not “whaling free,” don’t buy from them until they can. Also, please write to the company’s customer service department and ask for assurances that its products are not linked to Iceland’s whale hunt. 

The Don’t Buy from Icelandic Whalers Coalition has joined forces with groups in Europe and is calling on Iceland’s leading seafood export company, HB Grandi, to stop its support of commercial whaling. We have identified key companies that buy seafood from HB Grandi and its subsidiaries (see information below) and have written to ask them to ensure that they are not purchasing seafood supplied by these companies. Please, tell them that they should not support the killing of endangered fin whales, a protected and iconic species. 

source https://sustainablesushi.net/whaling-in-iceland/

Hokkigai – Surf Clams

Source: Wild

Mercury Risk: Low

With its triangular shape and swollen red foot, hokkigai is one of the most easily identifiable options at the sushi bar, alongside more popular fish options. Known both as the arctic surf clam and Stimpson’s surf clam, hokkigai is a long-lived burrowing bivalve usually caught in the waters off Quebec, Nova Scotia, and Newfoundland.

Surf clams don’t reach sexual maturity until five to eight years of age and can live for many decades in their natural habitat. Although they have been heavily targeted by Canadian clammers, there is very little information on the strength of surf clam stocks. This is a concern, but the larger issue is the way these clams are harvested.

Surf clams are caught using a hydraulic dredge—a portable high-powered vacuum that literally tears the ocean floor apart in search of its quarry. Any number of cohabiting species, such as groundfish, other invertebrates, or aquatic plants, can be severely impacted by dredging. At best they are forced to relocate, but many creatures are injured or killed in the process.

In some sushi bars, particularly on the East Coast of the United States, it may be possible to find local Atlantic surf clams as hokkigai. While this is extremely rare, it is likely a better option than Canadian product as more is known about the sustainability of the domestic fishery. Still, these clams are hydraulically dredged in a manner similar to their arctic relatives to the north, which is far from an optimal collection process.

There are better options than hokkigai at the sushi bar. Farmed abalone, scallops, and geoduck are all delicious and taken in a manner far less destructive to their environments.

source https://sustainablesushi.net/hokkigai-surf-clams/

Hirame – Flatfish

Source: Wild

Mercury Risk: Low (Atlantic fluke), Moderate (California & Pacific halibuts)

PCB WARNING

The term hirame can refer to just about any white-fleshed, horizontally oriented, bottom-dwelling fish: halibut, sole, flounder, fluke, turbot, and others. The key to enjoying hirame (or any flatfish sushi) responsibly is to discern which particular fish is on your plate.

The best option we can hope for here in the United States is Pacific halibut (Hippoglossus stenolipus) from Alaska. With well-enforced regulations and thoughtful quota limits, this fishery has been a trendsetting example for progressive management and sustainable harvesting. That being said, decreasing population levels and increasing bycatch, unintended species and juveniles that are caught and discarded, are beginning to become issues in this fishery. The actual term for halibut in Japanese is ohyo.

If the flatfish is not Alaskan halibut, the issue starts to get more complicated. First of all, the names flounder and sole are thrown around very liberally and often can be misleading. True sole occurs only in the Atlantic. This doesn’t prevent us from seeing Pacific Ocean “sole” for sale in the seafood market or finding “flounder” on a menu when what’s actually being served is sole or turbot. There are even large-scale fisheries in the Pacific that target petrale and rex “sole,” both of which are actually flounders. The technical Japanese term for flounder is karei.

The presence of California halibut on the West Coast doesn’t make the situation any simpler. “California halibut” (Paralichthys californicus) is actually a flounder, but nonetheless it is marketed as halibut. A large amount of California halibut is caught on longlines or bottom trawled (caught in large nets dragged along the sea bottom), but a portion of the fishery employs set nets that catch fish by their gills and are known to entangle and kill other animals.

The big problem with many sole and flounder fisheries is the methods used to catch the fish. These flatfish are generally bottom-trawled: A weighted net is dragged across the seabed to snare as many flatfish as possible. Unfortunately, this kind of fishing causes a great deal of habitat disruption and can harm or kill other animals. This practice is especially troublesome in the Atlantic as the populations of many affected species are already flagging.

Which type of fish is best for hirame (flatfish sushi)?

So here’s a quick cheat sheet to help decipher the thorniest parts of the hirame issue:

Pacific halibut from Alaska is a good choice due to positive management and responsible fishing methods. Feel free to enjoy this species as a staple item when you visit the sushi bar. This fish is rarely used for sashimi and nigiri, but is commonly offered in cooked dishes.

Pacific flounder (or sole, or plaice, or turbot) is the runner-up. These species are generally bottom-trawled, but population levels seem to be healthier than in the Atlantic. This fishery is in delicate shape and calls for some moderation.

California halibut caught with a hook and line, or even a bottom trawl, is a reasonable choice, but not a great one.

Chilean flatfish are also beginning to enter the sushi industry for use as hirame. Unfortunately, very little is known about these populations and the way in which they are managed. It is best to be cautious until more is known.

California halibut caught with a set gill net doesn’t merit our support. This fishery has a large amount of bycatch; marine mammals, such as the harbor porpoise, and numerous seabirds are often killed when they get entangled in these nets.

Atlantic sole (or fluke, or plaice) and Atlantic halibut are unsustainable choices due to destructive fishing practices and low population levels. If your sushi restaurant offers Atlantic flatfish sushi as their hirame, try to order a more sustainable white fish, such as US farmed striped bass or barramundi. Alaskan gindara is also an excellent choice when available.

It’s a complex issue, but with a few well-aimed questions we can recognize what’s being offered as hirame and choose whether or not we want to support it.

source https://sustainablesushi.net/hirame-flatfish/

Hiramasa – Yellowtail Amberjack

Source: Farmed, some wild

Mercury Risk: Unknown

In the original edition of the book, Sustainable Sushi, there is only one chapter on amberjack.  Given the growth of the industry and the differences in species, farming techniques, and management protocols, I’ve decided to address these fish on a more individual basis.  So, I’ve split the original chapter into three pages — one on hamachi, one on kanpachi, and this one on hiramasa.

The term hiramasa refers to Seriola lalandi, the yellowtail amberjack.  Although most sushi menus in North America translate hamachi as “yellowtail” (and vice versa), this is erroneous.  When you order hamachi, what you’re actually getting is S. quinqueradiata, the Japanese amberjack.  True yellowtail is much more difficult to find.

The hiramasa offered in a U.S. sushi bar generally hails from Australian farms, where it is known as “kingfish.”  These farming operations aren’t perfect, but they raise their fish from eggs rather than recruiting them from wild stocks, and they use pellet feed instead of sardines (although the fish-in to fish-out ratio is still uncomfortably high). Fish density in Australian farms also tends to be lower than standard levels in Japanese farms.

Australian farmed amberjack is superior to hamachi insofar as it spares wild stocks and uses low-density farms. Management practices seem to be sensitive to disease and parasite issues, but recent science has resulted in some troubling data. Hiramasa farms may not be as eco-friendly as I had once thought.

As a general rule, it’s probably best to avoid hiramasaI’ve no doubt it’s a better option than farmed hamachi, but it’s still a long way from sustainable.  Stick to domestic farmed kanpachi until the Australian hiramasa farms get their disease issues under control.

source https://sustainablesushi.net/hiramasa-yellowtail-amberjack/

Suzuki – Japanese Sea Bass

Source: Wild, Farmed

Mercury Risk: Unknown (Japanese sea bass), Low (Farmed striped bass)

Suzuki fish (or Japanese Sea Bass) is a classic sushi option that is lauded in Japan but somewhat uncommon in the United States. This fish can be found in upscale establishments, but it cannot be considered a staple of the U.S. sushi industry.

While English speakers use the term “sea bass” to refer to many different types of fish, the word suzuki actually has a very precise definition—it refers to the highly sought-after Japanese sea bass, Lateolabrax japonicus. From time to time, one might see the term translated as “sea perch.”

Some suzuki fish is taken from wild stocks, and some is raised in farms. Fishery locations range from inshore reefs off southern Japan to the northern beaches of Australia; the farms are mainly in Japan and China.

Not much is known about the strengths of various suzuki fish stocks. The Japanese sea bass matures quickly and spawns in large numbers, which would suggest an innate resilience to fishing pressure. It is interesting to note, however, that the Japanese sea bass is born male and metamorphoses into a female around age two or three. Fish exhibiting this kind of behavior are particularly vulnerable to fishing operations that target specimens of a certain size or age.

What are the different types of Japanese Sea Bass?

With this in mind, it is interesting to note that different sizes of suzuki fish are actually known by different names in many parts of Japan.  A relatively comprehensive list of these names is as follows:

under 30cm Hane (Hanego)
from 30 to 50cm Seigo
from 50 to 70cm Hukko
from 70 to 90cm Suzuki
over 90cm Nyudo
Different names used for “suzuki” fish in the sushi industry

Naming systems like this often coincide with market value falling heavily on a certain age class, as is the case with kohada.  Age-based differentiation in the market place compounded with inherent qualities that may raise the vulnerability of this fish (in this case, its hermaphrodism) is a good reason to sound an alarm bell.

Is suzuki a sustainable fish?

Suzuki farms also give us cause for pause. Historically, many of these farms have depended on “trash fish”—small fish from unmanaged fisheries in local waters—for feed. Luckily, it seems like a relatively small amount of feed is needed for suzuki fish production.

For suzuki lovers, there is a good alternative to Japanese sea bass. A number of farms in the United States are raising hybridized striped bass (Morone saxatilis crossed with Morone chrysops), both in ponds and in closed containment tanks. Rearing these fish requires relatively low levels of marine resources compared to what is needed to farm other species, such as Atlantic salmon or bluefin tuna. Moreover, these hybrids pose no serious threat to local environments in terms of escapees or disease transfer; the tank-raised fish are an especially good choice.

There are other types of “sea bass” that find their way into U.S. sushi restaurants as well. In summary, the conscientious sushi eater’s priorities should be as follows:

U.S. farm-raised hybridized striped bass is an excellent choice. They don’t require a great deal of fish meal and do not endanger local ecosystems or surrounding fish populations.

Wild suzuki from Asia is potentially a decent option, but there are concerns. It is difficult to assess fishery health due to a general lack of science and records, especially in the fish’s southern habitats. While the innate qualities of L. japonicus likely provide some protection from fishing pressure, it’s probably better to choose the U.S. farmed product until more is known about the Asian fisheries.

Farmed suzuki from Asia is not well understood. It is often referred to as tairiku-suzuki, which may or may not be L. japonicus. It seems that most of the fish are raised in hatcheries and thus are not directly taken from wild stocks, but little is known about the interchange between the farms and their surrounding environment.

source https://sustainablesushi.net/suzuki-japanese-sea-bass/