REEF FISHES Out of Africa: Part 2
03 Aug, 2017
A CORAL Magazine excerpt from the July/August 2017 issue
Part 1 | Part 2
by Michael J. Tuccinard
The smoke from a smoldering cooking fire filled the small room and lingered just above the packed-earth floor. I was in the village’s only open “restaurant,” along with a few locals, who were sitting across from me on a rough-hewn wooden bench, quietly finishing an early breakfast. The familiar sounds of early morning in the developing world drifted in through the open door and windows—a rooster crowing apathetically, the far-off drone of a motorbike, and a pack of semi-feral dogs barking just outside. The proprietor of this little restaurant—an outgoing and rail-thin man in his early 60’s—leaned over to pass me my coffee and asked what brought me out to this somewhat remote spot. When I replied “aquarium fishes,” he responded with the bemused, slightly quizzical look I’ve come to expect from that answer. “We have those here?” he asked. “In Kenya?”
Many people, even longtime hobbyists, might ask the same thing. Kenya’s coastline, bordering the far western edge of the Indian Ocean, has been the site of a small but vibrant aquarium fishery for decades. Like many of the small-scale collection locales spread out across the world’s tropical oceans, Kenya’s marine aquarium fishery is relatively unknown and remains poorly studied. But the fishes that make their way into the United States and other import hubs across the world—several of which have populated my own personal aquariums—have held an enduring fascination for me, and for that reason I found myself traveling across the Indian Ocean from Colombo, Sri Lanka, to Mombasa to get a firsthand look at Kenya’s marine aquarium trade.
Arranging to see aquarium fish collectors in action, whether in the South China Sea or the Amazon Basin, is rarely a simple task. Success depends on complex, often last-minute travel plans, good weather, and no small amount of luck. On this trip, however, I had few obstacles to contend with, as I had help from one of the country’s largest fish exporters, Kenya Marine Center. The company’s founder, Jochen, had organized transportation and allowed me to accompany his divers and collectors along the coast for the duration of my visit.
And so, in the tiny village of Gazi, nestled against the mangrove forests along Kenya’s South Coast, I waited for the team of divers to meet me and begin the day. Another watery instant coffee later, they began to trickle in. One of the youngest, having had the good fortune to collect a rare Gem Tang a few days before, was clearly suffering from the after-effects of a long night of celebrating his valuable find. One of them beckoned me to the door, and I followed them out to a wide, sandy beach where the boat was waiting.
FISHERY BACKGROUND: GEOGRAPHY
Over the next few days, I went out with dive teams along the coast to observe fish and invertebrate collection in action, traveling back each afternoon, along with the day’s catch, to their holding facility. Due to the relatively short coastline, most of Kenya’s aquarium trade is concentrated in a few collecting locations, most of which are only a few hours’ drive from export facilities clustered near the international airport in Mombasa.
The sprawling city of Mombasa, which has a population of over one million, is actually an island nestled into the southern edge of the Kenyan coast, less than 60 miles from the border with Tanzania. Its history stretches back over 1,000 years; it has been a Portuguese trading post, a British Protectorate, and a vassal state of the Sultanate of Oman. Today, it is a victim of the uneven pace of Africa’s urban development, and the dense population, heavy ship traffic in and around the port, and largely unregulated sprawl have heavily impacted the waters surrounding the city. Fortunately, the damage to inshore reefs has been localized, and it only takes a short time to reach intact, richly populated reefs just beyond the coast’s pristine beaches. A remarkable percentage of Kenya’s coastline is relatively healthy fringing reef, and the South Coast is home to the most vibrant of these.
This, combined with the proximity and easy road access to export facilities, is why the South Coast remains the favored region for ornamental fish collection in Kenya—and why I found myself on a traditional wooden boat heading out toward the extensive barrier reef outside Gazi, close to a kilometer from shore. The divers and boat crew, at first clearly a bit on edge having a foreigner in their midst, had relaxed and were now preparing for the dive. The majority of the collecting in Kenya is done by fairly well-organized and well-equipped dive teams using SCUBA gear. The reefs with the densest populations of desirable aquarium fishes tend to be around 30 to 60 feet (10–20 m) down, and although some areas had obviously been damaged in earlier bleaching events, these reefs were, for the most part, in good condition. The fish diversity was also remarkable; small schools of Powder Blue Tangs (Acanthurus leucosternon) were visible in every direction, and huge mixed-species groups of wrasses foraged close to the coral heads along the bottom.
NET-FISHING: AN ACQUIRED SKILL
Divers use barrier nets to collect fishes, deftly laying out the net in a semicircle on the seafloor and using it to corral the desired fishes into a smaller hand net before transferring them into standard plastic fish bags tied to their belts. Aquarium fish collecting in Kenya is, as in several other small-scale aquarium fisheries, a skilled trade requiring years of training and practice, and most of the divers I met had been collecting fishes as their primary source of income for more than five years—and some far longer. As always, I was amazed at the level of local ecological knowledge displayed by these collectors, who (when asked) can usually rattle off detailed information about the seasons for certain fishes at certain sizes, the influence of the tides and lunar cycles on fish abundance, and even what sites offer the best collecting at various times throughout the year. Each diver’s single tank of air is the major constraint on collecting, and they waste no time once in the water, scouting on their descent for groups of fishes to target and fanning out nets as soon as they reach the bottom. In a careful but hurried process, the divers spread out across the reef and pursue their targeted species, which vary according to what the exporter demands.
Although each exporter (there are three or four currently operating in the country) likely uses different methods with his own divers, the fact that Kenya’s fishes go directly from diver to exporter, typically in the same day, is hugely advantageous in terms of both communication and minimizing over-collection. Each dive team I spent time with went out with a rough list of what was needed, and for abundant or easy-to-collect fishes like damsels there was a quota in place—anything above that number would be paid for, but at a much lower price. During the 40- to 45-minute dives, the collectors gradually fill their belts with bags of fishes, from groups of Blue Star Leopard Wrasses (Macropharyngodon bipartitus) to reverse harems of the widely abundant Allard’s Clownfish (Amphiprion allardi), with the occasional larger bag reserved for single specimens of large angels like the Emperor (Pomacanthus imperator) or the sought-after Goldtail Angelfish (P. chrysurus). Above the surface, the boat crew times the dive and keeps close watch on the makeshift buoys, waiting for divers to surface.
Once the divers begin to surface, the crew springs into action and a flurry of activity ensues as the collectors, bags of freshly captured fishes in hand, haul themselves up and over the gunwales of the boat. Oxygen tanks are brought out and the divers and crew begin sorting the catch, re-bagging and changing water when necessary, before inflating the bags with pure oxygen. Each diver’s catch is placed in a separate pile in a shaded spot or under a tarp, and soon the divers begin preparing to repeat the process.
On a typical trip, the collectors make two dives, each lasting around 45 minutes, with a break in between while the boat makes its way to the second site. By the time the hot equatorial sun is high overhead—just around noon—the second dive has usually been completed and it is time to head back to shore. En route, the divers work quickly to re-bag most of their fishes once more, this time sorting them by size and species, performing additional water changes (big grazers like tangs and angels can make quite a mess in a short time) and, finally, marking the bags with scraps of paper on which they’ve written their initials—a simple yet effective system to ensure that each diver gets paid for the fishes he has caught.
Although teams of divers like the ones I traveled with are responsible for the lion’s share of aquarium fishes exported from Kenya, a significant percentage of snorkel-based collection occurs in the shallow inshore areas as well. On my last day in the country, I was able to accompany a group of snorkel collectors while they collected fishes and invertebrates. In contrast to the deeper coral reef habitat, this collecting site was primarily a vast seagrass flat, punctuated by rocky outcroppings with moderate coral coverage. Despite being far from “typical” reef habitat, these seagrass flats were no less productive in terms of fish diversity; dense schools of damsels, small surgeonfishes, and butterflies were easy to spot and approach. Because it requires far less skill and training, snorkel collecting is often an entry-level position for younger fishermen looking for work in the aquarium trade. Over time, snorkel collectors who prove adept at collecting and produce fishes in reliable numbers are offered the opportunity to train as divers, which comes with a substantial increase in earning potential.
Like many marine aquarium fisheries, the commercial trade in Kenya began in the early 1970s (Okemwa et al. 2005), at a time when the combination of improved air transportation and early success keeping marine aquariums drove some enterprising members of the industry to look beyond the established export points in the Philippines and Hawaii. Kenya’s reefs, which boast a wide variety of endemic, aquarium-suitable species (for more information on these, see Part I of this feature in the previous issue), made for an attractive, if logistically challenging target for the growing trade. Although there is no written history of the trade in Kenya, multiple sources relayed to me that one or more German expats began the first collection and export operation in the country. For many years, Kenyan fishes were sought by aficionados of the uncommon, but were only intermittently available. During the 1990s and into the 2000s, Kenya’s marine aquarium industry saw increased involvement by a few major importers in the US and Europe and developed significantly, and once-sporadic shipments became far more regular.
MONITORING ARTISANAL FISHERIES
For a time, even corals were exported and the main collection point, Shimoni, on the Southern Coast, became something of a well-known name among importers and members of the trade. To this day, the Kenya Tree Coral (Capnella sp.)—which, if I recall correctly, was the first coral I ever bought—remains a staple of the hobby, although its namesake country no longer allows the collection or export of any coral species. Today, a handful of exporters continue to ship fishes and invertebrates regularly from Mombasa International Airport, primarily to Europe and the United States. Although the “boom years” of the business have probably passed, aquarium fish collection remains an important business for those involved.
Like nearly all small-scale aquarium fisheries, Kenya’s has been poorly studied and would be considered data-deficient by nearly any standard. The country’s artisanal food fisheries, however, are fairly well-documented in the scientific literature, and many of its reefs have been monitored and studied for decades. This allows at least some insight into the fishery on an ecosystem level and, combined with what limited data does exist on aquarium fish collection, helps paint a picture of where the aquarium trade in this country, and the ecosystems that sustain it, stand today. Perhaps unsurprisingly, given the degraded state of coral reefs worldwide, this is a bit of a mixed bag. Generally speaking, Kenya’s food fish trade has remained small-scale, and they have never had a massive industrialized fishing fleet like those seen in other Indian Ocean countries. This has almost certainly helped protect reef habitat from widespread destruction due to trawling and rampant overfishing, but even small-scale fisheries can have a significant impact. Research indicates that after a peak in the late 1970s, overall catch per unit effort (CpUE, an important indicator of fishery health) has declined for all types of artisanal fishing along the coast (Samoilys et al. 2016). While this decline has not been nearly as precipitous as in some other regions, it is still indicative of trouble ahead for many of the important food fish families.
Kenya’s coral reefs, while still considered to be in relatively good health, have suffered a great deal in recent years. Major bleaching events in 1997–98 and 2007–08 caused significant loss of coral cover in many areas, although periods of recovery helped regain some of what was lost. Kenya also has an extensive range of marine protected areas along its coast, covering over 10 percent of its offshore area in total. Although enforcement of these areas (which includes strict no-take national parks) has varied in the past, a number of studies indicate strong recovery of fish and coral abundance and species diversity both in and around these areas. As is often the case, very little research has been done into the specific impacts of the ornamental trade, but given its small, localized nature and relatively low volume of locally abundant species, it is likely that the negative effects have been limited. Divers I spoke to, although keenly aware of lower numbers of food fish species in their collecting sites, generally did not see this decline extending to the aquarium species they targeted.
In an age of increasing concern about unsustainable sourcing of all manner of consumer products and widespread global decline of coral reefs, it remains surprisingly difficult to make purchasing choices for our reef aquariums that don’t contribute to either. Even defining what is and what is not sustainable with regard to the trade and hobby remains a fraught discussion, especially given the lack of research into most marine aquarium fisheries. In Kenya’s case, however, there are, at the very least, a few indicators that this fishery is among the better options for sourcing aquarium fishes and invertebrates. First and foremost, cyanide use and other destructive collecting practices are unknown in the country’s reefs. Also of great importance is the relatively direct route that freshly collected fishes take from reefs to export facilities just a few hours away. This dramatically improves survival rates and prevents the over-collection that results from poor communication between collector and buyer or the need to offset the high mortality rates associated with long, complex supply chains. Finally, Kenya’s extensive marine protected areas offer an important reservoir for species diversity and likely create what is known as the “spillover effect,” in which stocks of fishes and invertebrates in the surrounding areas are augmented. In the absence of hard data, it is difficult to support claims either for or against the sustainability of aquarium fisheries like Kenya’s, but these small-scale fisheries increasingly seem to be a better sourcing option for hobbyists looking to minimize the impact their aquariums have on wild reefs.
Part 1 | Part 2
See even more images in the lavish full version, published in the July/August 2017 issue of CORAL Magazine. Subscribers can access the digital edition to view this issue in the digital archives, or you can purchase a single-issue copy of the printed magazine through our web store.
Images by Michael J. Tuccinardi unless otherwise noted.