{"id":40077050,"date":"2019-01-07T00:00:00","date_gmt":"2019-01-06T18:30:00","guid":{"rendered":"http:\/\/china-dialogue-ocean-staging.darkbluehq.com\/uncategorized\/5932-nile-perch-overfishing-east-africa\/"},"modified":"2022-02-10T23:00:47","modified_gmt":"2022-02-10T17:30:47","slug":"5932-nile-perch-overfishing-east-africa","status":"publish","type":"post","link":"https:\/\/dialogue.earth\/en\/ocean\/5932-nile-perch-overfishing-east-africa\/","title":{"rendered":"Nile perch threatened in East Africa"},"content":{"rendered":"<p>Eunice Atieno Ong\u2019iro, 34, slices open a Nile perch and pulls out an off-white organ, hardly a fistful in size. She places it on a scale, jots down its weight in a notebook and stores it away in a plastic bag. In just a few seconds the process is complete and she is ready to do it again.<\/p>\n<p>\u201cThey come every three days to collect the maw,\u201d she says, referring to the traders who purchase the organs for resale.<\/p>\n<p>A thriving east African trade in fish maw (otherwise known as swim bladder) has taken hold of the local communities on the shores of Lake Victoria. It is threatening to make the Nile perch locally extinct.<\/p>\n<p>One of these communities is Obenge Beach, a two-hour drive south-west of Kisumu, the third largest city in Kenya. It developed because of its proximity to Lake Victoria, and the economy it generates for the region.<\/p>\n<p>\u201cTraders in maw will only say how much they are willing to pay, but will never tell you how much they sell it for,\u201d says Victor Mungu, the secretary of the Obenge Beach Management Unit, which works with the local community to support better management of local fisheries.<\/p>\n<p>The harvesting of the organ, prized by some Asian cultures as a delicacy with skin-healing qualities, has spawned a <a href=\"https:\/\/dialogue.earth\/7735-aquaculture-lake-victoria-east-africa\/\">lucrative business in the lake region<\/a> that is raising concerns of overfishing.<\/p>\n<p>Ironically, Nile perch is an <a href=\"https:\/\/www.nationalgeographic.org\/media\/impact-invasive-species\/\" target=\"_blank\" rel=\"noopener noreferrer\">invasive species<\/a>, introduced to the lake in the 1950s, and since blamed for worsening the threat to a number of native species, including East African cichlids.<\/p>\n<div class='cdo-shortcode--image'><\/p>\n<p><figure id=\"attachment_5946\" aria-describedby=\"caption-attachment-5946\" style=\"width: 1440px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5946 size-article-inline-full\" src=\"https:\/\/dialogue.earth\/content\/uploads\/2019\/01\/The-Nile-perch-being-weighed-before-harvesting-of-the-maw-1440x960.jpg\" alt=\"Nile perch threatened\" width=\"1440\" height=\"960\" \/><figcaption id=\"caption-attachment-5946\" class=\"wp-caption-text\">Weighing Nile perch before harvesting the maw. (Image: Geoffrey Kamadi)<\/figcaption><\/figure><\/p>\n<p><\/div>\n<h2>A secretive trade<\/h2>\n<p>The trade in fish maw is conducted by local merchants who understand its market value, unlike the artisanal fishermen who are locked out. Sales are made covertly.<\/p>\n<p>In Tanzania, the trade is subject to strict licensing and taxation, forcing it into the shadows. Whereas in Uganda, on the other side of the lake, the trade is out in the open. Buyers from China and Japan travel to Uganda to purchase bladders smuggled from Kenya and Tanzania.<\/p>\n<p>Because of this secrecy, would-be buyers at boat landing sites in Kenya are unlikely to come across traders or foreign buyers. Instead they find women employed to gut the perch and extract its precious maw, known locally as <em>mondo <\/em>in the Luo dialect (loosely meaning internal organ).<\/p>\n<p>Mungu makes a living by renting his two boats, which can accommodate two fishermen each. He charges a commission of 30% of the total catch price, so long as it does not fall below 2,000 Kenyan shillings (US$20). Otherwise, he charges the crew a flat rate of 700 shillings, equivalent to the daily minimum wage in Kenya.<\/p>\n<p>But the rise of the maw trade has hurt his business.<\/p>\n<p>\u201cAfter catching the Nile perch, fishermen remove the maw while still in the open water, hide it to sell elsewhere, throw away the gutted fish and return to shore with a diminished catch,\u201d he laments.<\/p>\n<h2>Saving the perch<\/h2>\n<p>In order to save the perch, which has become commercially indispensable, maw harvesting must be regulated. This of course needs to go hand-in-hand with other measures that affect not only the Nile perch but other fish as well. Overfishing, the use of illegal gear and the water hyacinth, a pervasive weed, are all reducing the number of fish in the lake.<\/p>\n<p>Fish maw is found on the underside of the fish. The bladder inflates or deflates to regulate buoyancy so fish can adjust their depth. It has various applications, including in the manufacture of absorbable stitches for medical use. In China, it is a delicacy usually served in soups or stews, or used as a source of collagen. It is also used in making water-resistant glue and the production of isinglass, a refining agent used in beer and wine.<\/p>\n<figure id=\"attachment_5939\" aria-describedby=\"caption-attachment-5939\" style=\"width: 662px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5939 size-article-inline\" src=\"https:\/\/dialogue.earth\/content\/uploads\/2019\/01\/Fish_maw_soup-662x372.jpg\" alt=\"\" width=\"662\" height=\"372\" \/><figcaption id=\"caption-attachment-5939\" class=\"wp-caption-text\">Fish maw soup. (Image: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Fish_maw_soup.jpg\">ProjectManhattan<\/a>)<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p>Chinese, and a much lower number of Japanese, buyers are the driving force behind this trade, say the fishermen. They first came to Uganda looking for maw in the early 2000s. Today, Kenya\u2019s share of the lake is only a sliver (6%) compared to Uganda\u2019s 43% share.<\/p>\n<p>According to an August 2018 <a href=\"https:\/\/www.lvfo.org\/sites\/default\/files\/field\/Local_Maw_VCA_Report_Sep18.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">report<\/a> commissioned by the German Corporation for International Cooperation (GIZ), in collaboration with the Lake Victoria Fisheries Organisation (LVFO), the Chinese maw agents had good opportunities for business growth relative to others in Uganda.<\/p>\n<p>For instance, Chinese traders gave agents supplying maw a competitive advantage over general fishmongers by providing working capital.<\/p>\n<div class='block--pullout-stat block--pullout-stat--float cd-shortcode--factbox'>\n                <p class='block--pullout-stat__title'>290<\/p>\n                <div class='block--pullout-stat__content'>\n                    <br \/>\nMetric tonnes of swim bladder exported to Asia from Kenya each year<br \/>\n\n                <\/div>\n            <\/div>\n<p>A lack of understanding about this fledgling trade, and the fact that there are currently no guidelines or policy to speak of, are also contributing to unsustainable fishing.<\/p>\n<p>What this means is that even basic data regarding the amount of maw being exported to China, let alone the population of Nile perch caught solely for their swim bladder, is non-existent.<\/p>\n<p><span style=\"font-weight: 400;\">According to a <a href=\"http:\/\/www.fao.org\/docrep\/005\/t0606b\/T0606B06.htm\" target=\"_blank\" rel=\"noopener noreferrer\">report<\/a>\u00a0by the Kenya Marine and Fisheries Research Institute (KMFRI), the bladder comprises an average of 2% of processed Nile perch by-product<\/span>. It estimates that up to 290 metric tonnes of the organ are exported from Kenya to Asia per annum.<\/p>\n<p>\u201cHowever, the [real] quantity is believed to be much larger, given that a significant quantity of the Nile perch swim bladder is exported in covert businesses outside of the processing company\u2019s value chain,\u201d explains Dr Christopher Aura, assistant director of Freshwater Systems Research at the KMFRI\u2019s Kisumu Centre.<\/p>\n<p>According to KMFRI, the price in Kenya ranges from 4,000 Kenyan shillings (US$40), for maw weighing 100-200 grams, to 16,000 shillings for 601-999 grams (one maw weighs 30 grams on average). In a middle-class part of Nairobi, 16,000 shillings will pay a month\u2019s rent for a one-bedroom apartment with hot running water.<\/p>\n<p>In Uganda, the price has been steadily increasing as a result of dwindling supply and rising demand. For example, a kilogramme of maw has tripled from 126,000 Ugandan shillings (US$35) in 2013 to 396,000 shillings today.<\/p>\n<p>On the other hand, the prices on the international market are stable, fetching US$450-1,000 per kilogramme in mainland China, depending on quality and market conditions, according to newspaper <em><a href=\"https:\/\/www.monitor.co.ug\/Business\/Prosper\/Exporting-fish-maws-gets-more-lucrative--competitive-in-Uganda\/688616-3784212-15m40p8z\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\">Daily Monitor<\/a><\/em>. In Hong Kong, a kilogramme of maw can go for up to US$7,700.<\/p>\n<div class='cdo-shortcode--image'><\/p>\n<p><figure id=\"attachment_5949\" aria-describedby=\"caption-attachment-5949\" style=\"width: 1440px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5949 size-article-inline-full\" src=\"https:\/\/dialogue.earth\/content\/uploads\/2019\/01\/Fish-stocks-have-dwindled-in-Lake-Victoria.-1440x960.jpg\" alt=\"Nile perch threatened in Lake Victoria\" width=\"1440\" height=\"960\" \/><figcaption id=\"caption-attachment-5949\" class=\"wp-caption-text\">Fish stocks continue to dwindle in Lake Victoria. (Image: Geoffrey Kamadi)<\/figcaption><\/figure><\/p>\n<p><\/div>\n<p>Mungu, of Obenge Beach, is only too aware of the decline in the lake\u2019s fish stocks.<\/p>\n<p>\u201cTen years ago we would harvest 700kg of Nile perch and 200kg of tilapia per day here,\u201d he recalls, pointing to the lake. These figures have since <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1111\/lre.12203\" target=\"_blank\" rel=\"noopener noreferrer\">plummeted<\/a><span style=\"font-size: 1rem;\">.<\/span><\/p>\n<p>They can now only manage a meagre 150kg of perch and 60kg of tilapia per day.<\/p>\n<p>Tom Guda, regional chairman of the Lake Victoria Beach Management Unit, explains that since the Nile perch is a sight predator, clear waters are paramount for its survival.<\/p>\n<p>The pervasive weed has not only muddied the waters, limiting the perch\u2019s ability to hunt, but is competing for oxygen with the perch, which being an apex predator requires a lot of it.<\/p>\n<p>\u201cWe are left with no option but to venture far deeper into the lake looking for the perch,\u201d says Guda, from Rokwaro Beach, a one-and-a-half-hour drive east of Kisumu.<\/p>\n<p>He says that it now takes five hours from Mbita (a landing site) to Remba to reach the fish.<\/p>\n<p>\u201cAnd you will need a twin-engine speed boat for this mission, otherwise ordinary boats will take up to eight hours,\u201d he says.<\/p>\n<p>Going farther into the lake has its risks, according to Guda. This is where the Kenyan fishermen and their Ugandan counterparts come into contact \u00ad\u00ad\u2013 and conflict \u2013 over rights to the perch.<\/p>\n<p>There are now efforts to formalise trade among the three countries on the lake, promoting taxes, levies and inspection fees to encourage a healthy aquatic environment for the benefit of all.<\/p>\n<p>\u201cAt a regional level, we are planning to develop guidelines to ensure that the trade is regulated as it has an impact on the sustainability of fisheries as the trade targets bigger Nile perch which are very important in stock replenishment,\u201d says Robert Kayanda, a Ugandan marine scientist and an official at the LVFO secretariat.<\/p>\n<p>The prodigious appetite of the perch imperilled indigenous species when it was introduced to Lake Victoria in the 1950s. Without fast action over the hunting of a very small part of its anatomy it may be next to be pushed over the edge.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>China\u2019s taste for swim bladder is pushing the species to the brink in Lake Victoria  \u00a0<\/p>\n","protected":false},"author":0,"featured_media":40066856,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[763,50039901],"tags":[545,40027748,20000237],"hashtags":[],"country":[50040759,50040722,50040743],"class_list":["post-40077050","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-food","category-ocean","tag-fisheries","tag-overfishing","tag-sustainable-development","country-kenya","country-tanzania","country-uganda"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nile perch threatened in East Africa | Dialogue Earth<\/title>\n<meta name=\"description\" content=\"China\u2019s taste for swim bladder is pushing the Nile perch to the brink in Lake Victoria. 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