IN BRIEF - Threats of Aquaculture on African ecology
Friday, November 10, 2017
Fish farming is a method that started showing its negative impact in recent years. Invasive species introduced by aquaculture businesses are invading and changing the ecosystem of places like the Okavango delta, Lake Malawi and Lake Victoria.
Is aquaculture causing more harm than solving fishing crisis?
Fish farming was introduced to Africa by the previous colonial authorities as a way to improve the production in the field of fisheries and accommodate to the growing population’s need. However, economic growth does not always resonate with suitable mindful techniques and environmental wellbeing. Although fish farms are producing an important amount of goods to cater to the needs of the population, their owners are generally unaware of the ecological drawbacks that their business is entailing. These farms are indeed contributing to the wellbeing of the communities benefiting from them but the negative side of the business shouldn’t be overlooked. Raising awareness about the harmful side to introducing certain types of fish should be a priority in this field.
Certain species are said to grow faster than others but according to specialists like Martin Genner “there is zero evidence that Nile tilapia will grow faster or have a better food conversion efficiency than local tilapia species when kept in the same conditions.” He also added “everyone is under the illusion that their problems will be solved by having a different fish species.” Aquaculture has a good potential within the continent if it is wisely and smartly applied.
WUHAN (Xinhua) -- Central China's Hubei Province will permanently ban fishing in 83 nature reserves in the Yangtze basin this year to restore the ecosystem of the river.
The ban has already been implemented on 10 aquatic nature reserves as of Jan. 1, and the others will be added by the end of 2018, according to provincial fisheries department.
The department has set up inspection teams to oversee the implementation of the ban.
The wildlife population in the Yangtze river has declined in recent years, leaving many species on the verge of extinction.
The stock of Yangtze's four species of domestic carp has plunged by 97 percent since the 1950s. The annual fish catch in the river has dropped to less than 100,000 tonnes from more than 400,000 tonnes some 60 years ago.
In 2003, China started imposing an annual three-month fishing ban on the Yangtze and extended the period to four months in 2015.
JAKARTA (Xinhua) -- Indonesian navy starts to build a military base in Anggrek sub-district of Gorontalo province, to strengthen security in waters off central Indonesia where illegal fishing has been rampant, Antara state's news agency quoted an official as saying on Thursday.
The province has 317 km coast line with 52 islands, and the waters are vulnerable on illegal fishing activity as it borders with waters of Thailand, Vietnam, Malaysia and the Philippines, local official Indra Yasin said.
Illegal fishing has triggered a huge financial loss for Indonesia, an archipelagic nation with over 17,500 islands.
Last year the Indonesia maritime and fishery ministry sank at least 217 foreign boats for intruding the country's waters and stealing fish.
Most of the boats in the illegal activity were from Vietnam, followed by the Philippines, Malaysia, Thailand and other nations, according to Maritime and Fishery Minister Susi Pudjiastuti.
The Alaska Seafood Marketing Institute (ASMI) is pleased to announce two new Alaska crab fisheries have been certified to the Alaska Responsible Fisheries Management (RFM) Standard and the three original RFM certified Alaska crab fisheries have earned continued certification.
Alaska Crab Fisheries Newly Certified to Alaska RFM: - Eastern Bering Sea Tanner Crab (Chionoecetes bairdi)
- Aleutian Islands Golden King Crab (Lithodes aequispinus)
Alaska Crab Fisheries Re-Certified to Alaska RFM:
- Bristol Bay Red King crab (Paralithodes camtschaticus)
- St. Matthew Island Blue King crab (Paralithodes platypus)
- Eastern Bering Sea Snow crab (Chionoecetes opilio)
The European parliament on Tuesday voted in favour of a ban on pulse fishing, a decision which it will use in negotiations with the European Commission and which will have a major impact on the Dutch fishing industry, if implemented.
Opponents of the system say it is a cruel and unnecessary method of fishing. It involves sending a current of electricity through sections of the sea bed, partially stunning sole and plaice and forcing some into the net. Its supporters, however, say pulse fishing is less destructive than beam trawling, which involves dragging a heavy metal bar across the sea bed.
Dutch fishermen have invested millions of euros in specialized equipment since the ban on pulse fishing was lifted several years ago under a scheme to allow ‘innovative methods’ in the name of research.
The Netherlands has at least 84 pulse fishing vessels – more than any other EU country. However, the Guardian says that other vessels, officially registered elsewhere in Europe, may also be financed and operated by Dutch owners.
Health authorities in the Japanese city of Gamagori were forced to activate an emergency warning system on Monday after a local supermarket accidentally sold five packages of potentially deadly pufferfish to customers.
The fish, called fugu in Japan, is prized as a delicacy, but has also been dubbed the 'Russian roulette' of dining because it contains a dangerous poison called tetrodotoxin, the consumption of which can be fatal to humans.
In fact, at least 10 Japanese people have died since 2006 from eating the toxic fish, and it used to be far worse – fugu's death toll peaked in 1958 with a stunning 176 victims, when awareness of the dangers was lower.
Since then, fugu chefs have to undergo a rigorous three-year apprenticeship in order to get a licence to serve the notorious seafood, with the training ensuring they know how to safely prepare the fish for diners.
By PETER DOCKRILL/.sciencealert.com | Read more here
Statistics from the Shanghai Entry-Exit Inspection and Quarantine Bureau show that imports of aquatic products for 2017 came out to 52,900 shipments, with their total imported value being $810 million, up 9 percent and 19 percent respectively from 2016, Xinmin Evening News reported Monday.
The imports were from 42 countries and regions in five continents including the US, the Philippines, New Zealand, the UK and Madagascar.
Notably, imported Blue Crab grossed 10,000 tons in 2017, while crayfish, Dungeness Crab, lobsters and eels grossed over 5,000 tons. Moreover, King Crab grossed 35 tons by weight, 10 times higher than in previous years.
Customs officials attributed the recent rise to growing demand from Chinese consumers along with the emergence of new retail channels including online purchasing and live seafood markets, all which have made high-end live seafood more available and affordable to ordinary shoppers.
Scientists at the Chennai-based Central Institute of Brackishwater Aquaculture (CIBA) have completed farming trials on Indian White Shrimp (Penaeus indicus) in all the maritime States in the country, including Nellore in Andhra Pradesh, establishing the species as prime alternative to the exotic vannammei.
A team of scientists led by CIBA Director K.K. Vijayan will share their findings on Indian White Shrimp cultivation with aqua farmers on Thursday (January 11).
The shrimp seed was collected from the Bay of Bengal and other parts of India for the trials which began in 2016 with the support of the National Fisheries Development Board (NFDB).
By T. Appala Naidu/.thehindu.com | Read full article here
Spain and Portugal defend recovery plan for Iberian sardine Spain
Fisheries authorities from Spain and Portugal participated in a technical meeting with the services of the European Commission, to explain in detail the proposal of a multi-year management plan for the recovery of Iberian sardine prepared by both countries.