Monitoring and Making the Most Efficient Use of Skipjack Tuna Resources with No Waste

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1 Special Feature 2 At Sea Monitoring and Making the Most Efficient Use of Tuna Resources with No Waste tuna a fish dear to the Japanese people since ancient times. It is one of the riches of the sea with an essential place in the Japanese kitchen, from dried bonito flakes and stock to sashimi. One of Ajinomoto Co., Inc. s main products, HON-DASHI, has also supported home cooking in Japan as a seasoning to complement stock since it went on sale in In order that it will always be able to provide HON-DASHI, the company has started activities to monitor the state of tuna resources. It is also involved in R&D initiatives aimed at using this precious bounty of the seas as efficiently as possible and without any waste, thereby attempting to create a seamless recycling-oriented cycle of resources. Initiatives to ensure a seamless cycle for the permanent and sustainable utilization of marine resources By-products are turned into fertilizers for turf and tea bushes In the case of HON-DASHI Nutrition for people Raw materials Nutrition for plants and animals Agricultural, livestock & fishery products Dried resources research The Ajinomoto Group makes careful and efficient use of the that is the ingredient of HON-DASHI and delivers them to the dining table in the form of soup stock, calcium and fish sauce. Moreover, the Group uses the heads and innards of the fish in its nutrient-rich and organic Liquid Fertilizer and processes it into feeds to create beneficial products. Web There is a movie on our website explaining the relationship of the Group and tuna. (Japanese only) A series of movies that introduce the Ajinomoto Group activities 15

2 o v e r v i e w What is the current state of our fishery resources? As populations and food consumption have grown, the total catch in the world s oceans has quadrupled over the half-century since the 1950s. This has resulted in global-scale overfishing, and it is believed that around one third of fish species are caught in excessive numbers, while approximately half are hovering around critical point. This means that there is a need for fishery resources management that focuses on the ecosystem as a whole. However, elucidating the marine ecosystem is a task that is fraught with difficulties. It is important that scientific knowledge is built up and the state of marine resources should be monitored at an early stage, before these resources and the ecosystem become threatened. The Ajinomoto Group Initiatives Work for Life Annual catch in the world s oceans from 1950 to 2008 Catch (million tons) (Year) Compiled from United Nations Food and Agriculture Organization (FAO) statistics In order to ensure a constant supply of HON-DASHI The dried bonito that is the main ingredient of HON-DASHI, one of Ajinomoto Co., Inc. s major products, comes from tuna caught mainly in the Western and Central Pacific Ocean. But demand for is soaring across the world. What is the state of tuna resources? has had a profound relationship with the Japanese people in some way or another, and dates back to antiquity. As well as contributing to shaping Japanese food culture through sashimi and dried bonito and so on, the fish has also played a role in traditional customs. The of early summer and the returning of late autumn conveyed a message of the changing seasons, but in fact the main distribution range of the fish lies in tropical waters with most of spending their lives near the equator. The found in Japanese waters are a small section of migrant immature one-year-olds. They rarely spawn in the sort of temperatures found in Japanese waters, but spawn throughout the year in tropical seas starting from about one and a half year old and are famed as a highly productive fish. are now a vital food resource, not only in Japan but also throughout the world as an ingredient in tinned tuna. This has led to a continuous and marked increase in the catch, which in 2009 amounted to 1.8 million tons, the highest on record, in the Western and Central Pacific Ocean the region that accounts for about 70% of the worldwide catch an eightfold increase on the 1972 catch. In particular, the dramatic increase witnessed since the latter half of the 1990s is due to the purse seine fishing that accounts for 90% of the catch. Moreover, more than 90% of the catch takes place within ten degrees north and south of the equator, and most of the used in HON-DASHI derives from these tropical waters. On the other hand, in the Japanese waters that lie in the peripheral areas of the fish s distribution range, recent years have seen very poor catches along the western coast of Japan. In 2004 there was a decline in trolling and small-scale pole-and-line fishing, and catches slumped to a low level by catch in the Western and Central Pacific Ocean from 1990 to 2009 The company has launched activities to monitor stocks, to make sure that stock is always available, and so that its bounty can be forever enjoyed by people in Japan and elsewhere throughout the world. What about resource management? Various international fishery management organizations composed of the nations concerned, conduct the resource management of tuna which migrate across the wide seas. In the case of the Western and Central Pacific Ocean, the body in charge is the Western and Central Pacific Fisheries Commission (WCPFC). At the 6th Regular Session of the WCPFC s Scientific Committee (SC6) that was held on the South Pacific island country of Tonga in August 2010, an assessment of the tuna species in the Western and Central Pacific Ocean was conducted. Ajinomoto Co., Inc., as a company that has started initiatives to monitor, was keen to clearly understand the circumstances surrounding stocks and their management, and therefore participated in SC6 and directly listened to the discussions of researchers from various countries. The resources assessment at SC6 The assessment stated that stocks in the Western and Central Pacific Ocean were still plentiful and that they were moderately exploited and subject to neither overfishing nor overfished. However, the indicators showing the state of the resources suggested that there were some signs indicating decrease of the population in recent years. The assessment stated that since there had been a rapid rise in catches and the indicators of the state of the resources were changing, monitoring would be necessary for any further attempts to increase the catch. Furthermore, it has been hypothesized that the increase in exploitation in the equatorial region may be causing the distribution range of resources to shrink. This could possibly be the cause of the declining number of that reach the waters on the periphery of their distribution, in other words in latitudes further from the equator, such as the seas of Japan, Australia, and New Zealand. State of and tuna species resources in world s major fishing grounds Compiled from WCPFC data Aggregate catch from 1990 to 2009 (tons) 1,000, , ,000 Pole-and-line Purse-seine Other State of catch F/Fmsy Bluefin tuna (also known as bluefin ) (2006) Bigeye tuna (Average for 2005 to 2008) Yellowfin tuna Use of (Average for 2002 to 2005) is moderate B/Bmsy 1 State of resources Critical region Cautionary region Overfished but resources fairly abundant Cautionary region Catch small, but resources low too Safe region Overfished and low on stocks Catch small and resources abundant 1. An indicator used in marine resources management. A fishing mortality at maximum sustainable yield (F/Fmsy) of over 1 indicates overfishing, and a biomass at maximum sustainable yield (B/Bmsy) of less than 1 means that the resource is scarce. Source: International organizations managing the world s main fishing fields. The data for, bigeye and yellowfin tuna is from the WCPFC; the data for bluefin tuna is from International Commission for the Conservation of Atlantic Tunas (ICCAT). are thought to live for six to seven years. The in Japanese waters are generally between 40 to 50 centimeters in length, but in tropical waters they grow up to around one meter. 16

3 Special Feature 2 At Sea Cooperation in tagging to deepen understanding of sea life (Above) The pointed tags are inserted into a straw-shaped metal tube and attached to the fish. (Right) Archival tags enable the position of migrating s to be estimated, and record the sea temperature and depth. Understanding and monitoring stocks. As an initiative to collaborate and contribute in these efforts, in fiscal 2009 Ajinomoto Co., Inc. started the Joint Tagging Survey into Pacific Coast in conjunction with the National Research Institute of Far Seas Fisheries (NRIFSF) of the Fisheries Research Agency (FRA). The NRIFSF has hitherto conducted tagging surveys on many species of fish for the purpose of investigating into the ecosystem and stocks of marine resources, but this fully-fledged research into the waters of Western Japan is the first of its kind. In this sur vey, the caught with pole -andline methods are tagged and released. When the fish are recaptured, on which reporting is made via the fisheries cooperatives, it is possible to estimate from the time and place what route the fish travelled, how much they grew en route, and the size of the stocks. Takayuki Matsumoto, and Albacore Section, Tuna and Resources Division, NRIFSF, participated in the survey Tagging procedures 1 Choosing the Measuring the Fishermen on a small poleand-line fishing boat catch the fish. The researchers wait on the deck, choosing a healthy-looking specimen from among the fish that spill down from the bow. The place and time where they were caught, and their length, are all recorded The ground bait for used in the waters around Amami Oshima contains silver-stripe round herrings and Japanese anchovies, but the poor catches of recent years are forcing the fisherman to make a boat journey up to Kagoshima to buy them.

4 The Ajinomoto Group Initiatives Work for Life In order to accompany the usual fishing trips, the researchers leave port in the early hours of the morning, spending three or four hours travelling to the fishing fields. During the first research activities in May 2009, 1,000 s were released in the vicinity of Amami Oshima, 34 of which were reported as recovered in Western Japan coasts by the end of the year. The project was expanded in fiscal 2010, with a further 3,000 fishes being released off Amami Oshima and the coast of Kochi. We believe that acquiring the basic data requisite to properly understanding, and providing fisheries stakeholders with information on fluctuations in resources through this research, are vital for sustainable fishing. Moreover, pursuing research into in the temperate region could probably be regarded as a Japanese contribution to the assessment of stocks in the entire Western and Central As it is vital that the members of the fishing community tell Pacific Ocean. The research will us about the recapture of fish, not lead to immediate results, but notices, posters and goods have been made to inform it is an effort that the company them through the fisheries cooperatives. intends to patiently pursue. 3 The Koniya district of Setouchi-cho, on Amami Oshima, an island surrounded by a beautiful coral seas and lush plants such as the flower of the Tiger s Claw tree. There are turtles in Koniya harbor too. voice Supporting sustainable stocks is one of the environmental targets set as a business project by the Seasonings Department. Some of the company s environmental personnel and myself took part in the joint tagging survey, and all of us lent a hand in the survey work carried out on the boat. Seeing for myself how the size of catches varies with the weather and sea conditions over the few days of the survey, I gained a first-hand understanding of just how hard it is to estimate and secure the resources of the sea, and how limited these resources are. In order to keep on supplying HON-DASHI, it is essential to have a stable supply of. Though this research is still in its infancy, I hope that it will serve as the foundation for finding out even more about s and protecting them. Then Section Manager of the Seasonings Department, Ajinomoto Co., Inc. voice The seas are currently undergoing a major and rapid change. The worldwide consumption of fish is rising, but natural fish are a form of wildlife. While the amount caught by humans increases, the number of the fishes themselves will not suddenly rise. In order that we can still eat fish in the future, we need to prevent overfishing with a monitored fisheries management mechanism based on scientific evidence. It is also vital that consumers know about the seas and fishes. We have great hopes for this initiative of the Ajinomoto Group, which seeks to protect with the collaboration of various stakeholders including fishermen, fisheries people, researchers, NPOs and consumers. Aiko Yamauchi Fisheries Officer, Marine Program, Nature Protection Office, World Wildlife Fund (WWF) Japan 4 Attaching the tags Releasing of the fishes Ta g s a r e a t t a c h e d b y slipping them on to the bones of the dorsal fin. Some of the fishes have archival tags attached to their stomachs. The are tagged in t he s pac e of aroun d 10 seconds, in order not to damage their bodies, and are immediately released back to the sea. If they are recaptured, the data on the time and place are collated and analyzed. Yoichiro Ito The back of a freshly caught is a dazzling bluish purple. The fish are so lively that they sometimes have to be pinned down in order to attach the tags. 18

5 At Sea Special Feature 2 Making the most efficient use of the riches of the seas, and creating a cycle of resources that is beneficial both at sea and on the land When are considered as a resource it is important to know about their stocks, but is also vital that we use them without any waste. Ajinomoto Co., Inc. established Bonito Technical Laboratory Co., Inc. jointly with a dried bonito maker in The joint company is engaged in R&D to use all parts of the without any waste. are a food resource widely loved by the Japanese since the old days, and dried bonito has a deep enough link with Japanese food culture to merit a mention in the kojiki : Records of Ancient Matters compiled in the 8th century. It is also used overseas in tinned tuna, and worldwide demand for the fish is rising in line with the increase in fish consumption. Under circumstances such as these, the company believes that it is vital that we make the most efficient use of without waste. inherent in to decompose the residual parts of the fish and turn them into fertilizers and feeds. Currently, experiments are underway to test the efficacy of a liquid fertilizer on green tea fields, and the fertilizer is showing signs of being particularly effective in stimulating the growth of new tea bush shoots. The company expects to popularize the liquid fertilizer now on sale as a product that helps create a permanent cycle of resources, by playing a part in using the goodness of these fishes to nurture fertile fields back on the land. Pursuing high-addedvalue usage methods, and using every ounce of resources the company h o p e s t o ex p re s s i t s gratitude for the riches o f n a t u re t h ro u g h i t s Experimental use of liquid fertilizer on green tea bushes. The tea saplings to which the fertilizer was applied appear to be growing well. business operations. The Bonito Technical Laboratory Co., Inc. s research to turn fish into various food products, and fertilizers that will nurture the fruits of the land Annual production of HON-DASHI, which carefully uses broth and extracts, amounts to approximately 20,000 tons. If soup stock was obtained in the same manner just from dried bonito, 90,000 tons of dried bonito per year would be needed. Ajinomoto Co., Inc. purchases dried bonito for use in HONDASHI from a specialist dried bonito manufacturer. The head, bones and innards are removed during the production process, and around 70% of the fish becomes dried bonito. However, the remaining 30% of the fish that does not become dried bonito is also packed with nutrition, to such an extent that it would be wasteful just to dispose of it. This is why the company uses the bones as a raw material for calcium food products and the concentrated and refined broth as an extract ingredient in HON-DASHI. The heads and innards are also processed for use in seasonings such as fish sauce and soy sauce. Moreover, recent research is looking at ways of using enzymes Web The Bonito Technical Laboratory Co., Inc. s website, including details of the Concept of the World (Japanese only) Bonito Technical Laboratory Co., Inc. s Concept of the World Frozen from waters near the equator arrives at the port of Yaizu. They are stored in refrigerators until the day before processing. In the raw materials for HON-DASHI Raw material Into various food products For fertilizers and feeds Sashimi Boiled in soy sauce soy sauce fish sauce calcium Refining Refining Simmering collagen Semi-dried bonito An initiative that aims to use 100% of the by the effective utilization of all the by-products arising from the production of dried bonito Used as raw material Smoke drying Smoke-dried bonito Molding Dried bonito with mold Liquid seasoning Tinned Shaving Flakes Soup stock Extraction soup stock Packed flakes Noodle sauce Soil additive Feeds 19 Cutting extract 90,000 tons 20,000 tons Based on a calculation in which 175 grams of miso soup uses 3.5 grams of dried bonito and the same amount of miso soup uses grams of HON-DASHI. Liquid fertilizer Feeds Fertilizer The Japanese people have had a long acquaintance with, and the bones of the fish have been found all over Japan in Jomon Era burial sites dating back to around 7,000 to 8,000 years ago. They appear to have been caught using tackle made from deer horns and bones.

6 The Ajinomoto Group Initiatives Work for Life To t h e F u t u r e An amino acid derived from the land ensures the recovery of algae in the sea?! Joint development of Environmentally Active Concrete that helps to grow algae Arginine powder (Middle) Experiment to submerge a plate In recent years the pollution of rivers and seas, the oligotrophication (or nutrient depletion) of seawater and the desertification of coasts due to global warming, a phenomenon in which algae become depleted, have grown into serious problems. Since algae are one of the keystones of the food chain, encouraging their growth will lead to the vitalization of the seas and rivers. This is why a group centering on Ajinomoto Co., Inc., Nikken Kogaku Co., Ltd., and the University of Tokushima s Institute of Socio Techno Sciences (headed by Professor Yasunori Kouzuki) has jointly developed Environmentally Active Concrete1, in which the amino acid arginine is mixed. Arginine is an amino acid found in large quantities in marine products, and it has a growth-promoting effect on plants and certain types of algae. When arginine impregnated concrete was submerged in the sea, there was a notable difference in the growth of microalgae varieties around it compared to ordinary concrete, and fish and shell life were also attracted to it. The results of experiments conducted thus far in seven maritime locations and on one river show that, in comparison with ordinary concrete, there is a marked difference in the growth of the algae and abalone that adhere to it. Further attempts in the future will be made to test on a long term basis and verify the concrete s effects on larger algae like wakame seaweed and kelp, as well as coral. By turning the inorganic concrete used in seas and rivers into an organic material it is hoped that it will be possible to improve the compatibility of natural and manmade objects, and help in supporting the food chain and ecosystem. The arginine created from riches of the fields such as cassava helps to nurture life in the seas. Ajinomoto Co., Inc. s amino acid business, which set out to provide people with tasty food, has blossomed out into medicines and feeds and so on, and is continuing to make fresh challenges in the field of fostering marine resources. 1. Patent jointly applied for by Nikken Kogaku Co., Ltd. and Ajinomoto Co., Inc. Product planned for launch by Nikken Kogaku Co., Ltd. during fiscal Chizuru Tara (left) and Kazuhiro Sato (right) Bio-Industrialization Center, Bioscience Products & Fine Chemicals Division, Ajinomoto Co., Inc. The riches of the fields help to make the marine ecosystem harmonious. We work on our research in the hope that we can make a new amino acid bio-cycle like this. Environmentally active concrete Aamino acid Much is expected of the concrete s efficacy in attracting primary creatures such as fish and shellfish. Below left: Abalone; Below right: Sweetfish Changes in amount of microalgae attached to concrete surface in testing at sea Amount of algae attached Chlorophyll-a2 (μg/cm2) 20 Ordinary concrete Environmentally active concrete Installation: June Chlorophyll-a is a green pigment essential to the photosynthesis process, and is used as an indicator of the amount of algae attached Survey month Compared to the ordinary concrete (back left) the environmentally active concrete in the foreground displays significant algae growth. Checking results in the lab tank Wave-dissipation block cast The environmental consideration taken in the production of HON-DASHI is not limited to materials. The product is available in refill pouches to cut down on waste, and ongoing environmental care is taken with all containers and packaging. 20