Wednesday, November 21, 2018

Eel trafficking in EU called the ‘largest wildlife crime on Earth’

https://www.japantimes.co.jp/news/2018/11/21/world/crime-legal-world/eel-trafficking-eu-called-largest-wildlife-crime-earth/?fbclid=IwAR0Dcgr_-80ifsNzS7SQ7DcaDFUkfFX42uW8kv_SpiZibuMb7PQVvnAxXno#.W_YZMzgzbcs

WORLD / CRIME & LEGAL

Eel trafficking in EU called the ‘largest wildlife crime on Earth’

AFP-JIJ NOV 21, 2018
Billions of euros worth of critically endangered eels are being trafficked each year from Europe, ending up on tables in China and Japan in what campaigners say is “the largest wildlife crime on Earth.”
Stocks of European eel (anguilla anguilla) have plummeted 90 percent in three decades as mankind has developed the wetlands and dammed the rivers it needs to grow and feed in, and experts fear criminal gangs smuggling the lucrative fish are pushing it toward oblivion.
Despite growing alarm from conservationists, hundreds of tons of eels are still legally and illegally fished each year. In France — which catches more of the fish than any other EU state — the issue has taken on political dimensions.
“There’s around 10 percent of stocks left compared to 30 years ago due to habitat loss and what we’ve done to the migration pathways in Europe,” Andrew Kerr, chairman of the Sustainable Eel Group (SEG) that works to conserve the species, told AFP.
The eel’s vertiginous decline has provoked some action from governments and law enforcement agencies. It is now listed in the CITES international convention on trade in endangered species, resulting in strict national catch quotas.
The problem, according to Michel Vignaud, head of fishing regulation at France’s National Biodiversity Agency, is exploding Asian demand for a product viewed as both a delicacy and an aphrodisiac.
“We cannot legally export eels outside the EU, but the prices are different in Asia. There is a real Asian demand for eel,” he told AFP.
The U.N.’s Food and Agriculture Organization said that in 2016 China produced close to a quarter of a million tons of eel for consumption, far ahead of Japan — where eating eel is seen as bringing good luck and fertility — and the EU.
The bloc’s law enforcement agency EUROPOL estimates as many as 100 tons of baby eels — known as glass eels for their translucent skin — are trafficked abroad each year: equivalent to around 350 million fish.
“Glass eels trafficking involves environmental crime, smuggling, document fraud, tax evasion and money laundering,” a spokesman told AFP.
The live eels are largely caught — legally or otherwise — in Western Europe before being smuggled eastwards in vans or lorries, often falsely labeled as nonendangered fish, police and conservationists say.
Criminal gangs then divide the eels into suitcases, up to 50,000 of the tiny fish per bag, which are then flown by commercial airliner to Asia.
The fish are grown in special farms to their full size — up to a meter and a half — and then sold to market for the equivalent of 10 euros each.
“Prices vary so you can only come up with bracket figures, but we’re talking billions (of euros). It’s the biggest wildlife crime by value on Earth,” said Kerr. “It’s the most trafficked and traveled animal on the planet.”
The European eel’s extraordinary life-cycle begins in the topaz waters of the Sargasso Sea. The eggs drift on the current across the Atlantic, often taking up to two years to reach the feeding grounds of Europe.
The baby eels swim up rivers where they live for up to 25 years, feeding on larvae and worms until fully grown before embarking on the 4,000-mile (6,500-km) journey back home to the Caribbean, where they breed and finally die.
But they are under threat from a host of man-made dangers, including illegal fishing, pollution, and the estimated 1.3 million river barriers blocking their path across Europe.
“Our hope is that any eels still alive are left alone by humans,” said Charlotte Nithart, head of the Robin des Bois conservation group.
She said that France’s current legal eel quota — 60 tons per year, of which 60 percent must go to restocking efforts — was contributing to the species’ decline.
“We have never said that trafficking alone is responsible for the disappearance of eels,” she said.
“We want to cancel or at least dramatically reduce fishing quotas and reinforce the means to fight trafficking.”
For Guillaume de Preillec, who represents the local fishing committee in Brittany, quotas are “justified” for those whose livelihoods depend on the eel fishing season, which began across France last week.
“If you are in commercial fishing people tell you that when you fish more you earn more. So the fishermen always want more,” he said.
As the numbers of fish arriving on Europe’s shores goes down, smugglers are taking greater risks to sate voracious Asian demand.
“Trying to control the traffickers is getting more dangerous. These are people who operate on the sidelines of mass organized crime,” said Vignaud.
EUROPOL has scored a number of major hauls in recent years, including Spanish police busting an eel-smuggling gang in possession of 350 kg of glass eels in April.
But despite such seizures and a handful of ongoing trials, campaigners say the penalties remain flimsy compared with those for other trafficking crimes.
“EUROPOL can act on the level of customs but there’s not a European intervention force to fight trafficking and traffickers,” said Nithart.
Eels are mentioned in England’s 11th-century Domesday Book and used to be an accepted tax payment in medieval times.
But as mass trafficking continues to undermine EU-wide
efforts to save the threatened species, there are fears for the future of one of the world’s most storied fish.
“One of the sad things about today in general is how human beings are losing touch with nature, and the eel really symbolizes this,” said Kerr
.

Tuesday, November 20, 2018

Cats use hollow papillae to wick saliva into fur

Cats use hollow papillae to wick saliva into fur

Alexis C. Noel and David L. Hu

Tuesday, November 13, 2018

日本究明日本鰻仔稚魚期之遺傳基因可望縮短仔稚魚變態期

日本究明日本鰻仔稚魚期之遺傳基因可望縮短仔稚魚變態期
日本水產研究教育機構於今年9月27日說明已究明日本鰻仔稚魚(leptocephalus)期間是親魚遺傳給孩子之時期。此一成果有可能縮短日本鰻苗大量生產非常困難之仔稚魚期的育種選別。可望對鰻魚人工種苗量產之實用化向前邁進了一大步。此一成果發表於今年8月30日英文期刊「PLOS ONE」。鰻魚之仔稚魚在自然環境下卵孵化後約110-170日變態為玻璃鰻線,而人工飼育環境下約需天然環境之2倍的160-450(平均250天)才變態,此一期間太長妨礙了鰻線之大量生產。因此該機構進行了大規模的育種實驗與遺傳分析而究明仔稚魚之遺傳時期,而且已開始用於集團之育種試驗,預計2019年第一世代之仔稚魚將出世,可望於十至十五年後可縮短仔稚魚期變態時間20-40%。該機構於2010年完成日本鰻之完全養殖,為實現加速鰻魚養殖不需靠野生種苗,此一成果備受期待。
許金漢,摘譯自日刊水產經濟新聞,28 September 2018

臺日韓科學家建議應強化日本鰻之保育管理措施

臺日韓科學家建議應強化日本鰻之保育管理措施
 為管理日本鰻資源,東亞四國於四年前達成了鰻苗入池量進行管制。今年9月20-21日臺日韓三國之科學家在東京舉行首次「日本鰻有關之區域研討會」。各國科學家帶來各自之研究成果並進行發表與討論,彙整出有必要採取比目前更嚴苛之保育管理措施之分析結果。此一非公開性之會議共有40餘人出席。日本與臺灣除派有漁政官員、科學家外,還有產業界人士與會,韓國只有派科學家參與,中國大陸則缺席。大家分享了包含未公開發表之研究結果。發表之領域有來游鰻苗的監測調查,野生鰻魚之漁獲調查,調查船進產卵海域調查之結果,親鰻生息環境的改善等多種多樣領域。
        研討會協商結果是在進行生息環境之保全與降河洄游親鰻的保護外,現階段鰻苗入池量限制,即日本21.7公噸、中國大陸36公噸、韓國11.1公噸、臺灣10公噸,一致認為此一四年前之決議,為強化日本鰻之保育管理,應該還有一些必要之作為,但具體之措施內容則有待預計於明年3月召開之下一次「與鰻魚有關之國際資源保育管理非正式協議會」再討論。另外也一致同意定期召開此一「區域研討會」,以合作持續進行資源評估,及蒐集並共享科學數據。至於已近兩年缺席非正式協商會議之中國大陸,日本水產廳增值促進組漁場資源科生態系保全室室長魚谷敏紀表示:「理由不便公開說明,但會利用一切機會,鼓勵中國大陸返回非正式會議。」另外當初表明以觀察員身分而參加之菲律賓,也因22號颱風之影響而缺席。
李賢忠,摘譯自日刊水產經濟新聞,26 September 2018

Monday, November 05, 2018

鰻苗價格走勢天知曉

臺灣水產電子報2018/11/06
鰻苗價格走勢天知曉 @ 李武忠
鰻魚是台灣重要養殖產業,目前養殖所需鰻苗係來自天然捕撈,去年由於天然鰻苗捕撈時間延後以及數量減少讓業界大傷腦筋,今年是好是壞只有老天知道,由於數量多寡關係到鰻苗價格以及養殖成本高低(鰻苗占養殖成本五成以上)讓業者忐忑不安。而台灣鰻苗捕撈漁季,將於十一月一日展開,共為期四個月(自107年11月1日至108年2月28日止 ),主管機關漁業署呼籲從事岸際捕撈鰻苗業者,除了向作業當地區漁會辦理登記外,應在漁撈日誌上填報捕撈方法、捕撈地點及捕撈數量,以利後續進行鰻魚(苗)資源科學調查研究及資源管理評估規劃,有助於鰻魚產業永續發展。
日本鰻(Anguilla japonica)魚苗是老天賜與台灣相當珍貴的天然財富,如何確實掌握鰻魚苗資源量,對鰻魚資源管理以及鰻魚產業的穩定發展至關重要。儘管鰻魚產業相當發達,一直以來國內對於實際鰻苗資源量及捕獲量,多採用推估方式並沒有確實數字,徒增管理困難。這些年來由於人為濫捕、棲地遭到破壞、海域遭受汙染、溫度暨洋流改變等等因素,造成天然捕撈日本鰻魚苗數量銳減,已經影響到日本鰻的整體資源量(日本野生成鰻和魚苗的捕撈量分別只剩下全盛時期的1/15、1/40)。為此國際自然保護聯盟組織制(IUCN)把日本鰻與美洲鰻列入紅皮書的瀕危物種(不具法律約束力),瀕危野生動植物種國際貿易公約(CITES,又稱華盛頓公約)會議,繼美洲鰻之後也考慮將日本鰻列入附錄二物種,未來出口該物種必須檢附非違法捕獲以及輸出不危害此物種存續之證明文件,一旦列入勢必嚴重影響整個鰻魚產業的供應鏈(包括台灣養鰻產業),政府須未雨綢繆。
為維護鰻魚苗資源的永續,掌握確實資源量以及捕撈量至為關鍵,有了這些資料,政府才能有效進行鰻苗資源管理包括:制定允許捕撈季節,河川、河口、海域的禁捕、捕撈方式、總量管制等等。遺憾的是,我國政府對於捕撈鰻苗的漁民,始終缺乏有效管理(包括:捕撈資格暨方法限定、捕撈證照申請核發、捕撈數量的申報等),尤其相關的罰責不完備且過輕(僅規定違法捕撈期限者核處新臺幣三萬元以上十五萬元以下罰鍰),沒有遏止作用,致執行效果非常差;不是訂定法規就可以交差,還要有人,有經費去執行,去落實,畢竟徒法不足以自行,這也是台灣漁業管理不斷遭到國內外質疑及批評的原因所在(歐盟黃牌遲遲未解除原因,正因為台灣漁政機關對於取締國人非法漁業行為執行力不佳),政府必須拿出魄力多管齊下,讓漁民樂於守法,是資源護育的重要關鍵。
開發日本鰻人工繁養殖技術,是緩解養鰻產業需依賴野生鰻苗以及野生鰻苗資源銳減的重要關鍵。這項超高難度的挑戰,日本學者經過多年努力已經成功確立日本鰻魚完全養殖技術,但是尚無法達到商業化生產的階段。目前該項繁殖技術並未有智財權,台灣政府應該整合相關研究機構及人才並在過去累積雄厚的基礎上,加快研究腳步迎頭趕上。日本鰻人工魚苗商業化生產技術一旦確立,將會翻轉整個鰻魚資源保護、利用以及產業競爭的態勢,而台灣只要找對人,用對方法,是有機會可以創造歷史,就看國家漁業領導人有無雄心與睿智!