Amaran Air Merah di Pantai Barat Sabah

  Satu amaran kesihatan yang melarang orang awam makan kerang, dikeluarkan berikutan penemuan kewujudan air merah di sepanjang pantai barat Sabah.

Pengarah Jabatan Perikanan, Rayner Stuel Galid mengingatkan orang ramai untuk tidak makan kerang yang dikutip dari kawasan-kawasan terjejas selepas ujian rutin menunjukkan kepekatan tinggi toksin keracunan paralitik kerang (PSP). Beliau turut memberitahu para nelayan untuk tidak mengumpul atau menjual kerang beracun ini.

Menurut jabatan itu, sampel kerang yang diambil dari perairan Kota Kinabalu, Pulau Gaya, Teluk Sepanggar, Teluk Likas, Papar, Putatan, daerah Tuaran dan daerah sejauh Kuala Penyu juga diuji positif bagi toksin PSP.

Spesies kerang terdedah kepada keracunan PSP termasuk semua spesies kerang iaitu kerang (Kerang), tiram (Tiram) dan kupang (Kupang). Selain itu, Rayner berkata, sampel air laut dari kawasan yang terjejas juga mendedahkan kepekatan tinggi PSP yang menyebabkan organisma. Beliau melaporkan bahawa sebelum ini, kejadian air merah di Sabah menunjukkan kepekatan toksik dalam kerang-kerangan adalah setinggi 8,000MU (mouse unit) di atas paras 400MU yang dianggap tahap risiko minimum untuk kegunaan manusia.

Data terbaru yang dikumpul daripada sampel kerang menunjukkan kepekatan berbahaya tahap toksik dengan 4,010 MU di Papar dan 1,270MU di Tuaran.

“Ada kemungkinan tinggi yang air merah itu akan merebak ke daerah-daerah berdekatan di masa depan. Juga dijangka bahawa kerang akan menjadi lebih toksik berikutan dinoflagellates menjadi lebih banyak di laut,” kata Rayner.

Walaupun kebanyakan jenis ikan, udang dan spesies ketam selamat dimakan, jabatan menyarankan pengguna untuk membuang insang dan semua bahan daripada perut semua jenis ikan dan memastikan ia dibasuh dengan teliti. Bagaimanapun, katanya, mana-mana ikan kering, ikan masin dan lain-lain produk ikan yang diproses adalah selamat untuk dimakan.

Air Merah digambarkan sebagai keadaan di mana penapis pemakanan kerang mengumpul toksin akibat pemprosesan semulajadi alga marin.

Menurut Rayner, gejala keracunan PSP bermula dengan cucukan sensasi dalam mulut, sakit kepala, loya yang berlaku dengan pantas dalam masa beberapa minit atau sekurang-kurangnya sejam selepas makan kerang yang terjejas. Bergantung pada jumlah yang dimakan kerang tercemar, toksin menyerang sistem saraf pusat manusia, yang boleh membawa maut.

Tiada penawar untuk keracunan PSP dan orang ramai digesa mendapatkan rawatan perubatan dengan segera di klinik atau hospital berdekatan jika mereka mengalami sebarang gejala yang dinyatakan.

“Jabatan kami akan bekerja rapat dengan Jabatan Kesihatan untuk menjalankan persampelan dan ujian lanjut kehidupan laut yang dikutip di kawasan-kawasan lain dan akan terus memantau keadaan” kata Rayner. – Insight Sabah

Diterbitkan pada Disember 18, 2012

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沙巴西海岸的紅潮警報

  隨著沙巴西海岸爆發紅潮,當局已向公衆發表警報,勸告公衆勿使用貝殼類海產。

漁業局總監雷納警告公衆,當局在例行檢查中,發現部分沿海地區的貝類類海產被檢查出含有麻痹性貝類毒素(PSP),因此促請公衆暫勿食用從受影響海邊的貝殼類海產。

 

漁業局總監雷納漁業局總監雷納

據該局指出,他們在亞庇縣岸外、加雅島、實邦加灣、里卡士灣、吧巴、必打丹、斗亞蘭甚至是瓜拉班尤所收集到的貝殼類樣本中,檢驗出含有麻痹性貝殼類毒素。

容易中麻痹性貝殼類毒素的貝殼類海產包括所有的蛤種,如蚶,牡蠣和貽貝。雷納補充,他們在受影響地區的海水中,也檢測出高濃度造成麻痹性貝殼類毒素的藻 類。他透露,以前在沙巴出現的紅潮中,貝殼被檢測出的毒素最高為8000MU(用鼠單位),遠遠超過人體可使用最低毒素危險線的400MU。

當局最近所收集到的貝殼樣本中,被檢測出其所含的毒素已達到危險水平,吧巴縣的樣本檢測出4010MU,斗亞蘭縣的則是1270MU。

“紅潮在未來有很高的可能性會蔓延至其他臨近地區。同時隨著海上有毒甲藻數量更多,貝殼預測也將含有更多的毒素,”雷納說。

至於其他大部分的魚類、蝦和螃蟹則依然可安全食用,不過該局強烈建議消費者應去除所有魚類的魚膽和魚鰓及確保它們已經被徹底洗淨。不過,他說任何曬乾、腌製或其他已加工處理的魚類產品是可以安全使用的。

紅潮是形容濾食性貝殼在食用有毒藻類後所累積一定量的毒素。

據雷納表示,麻痹性貝殼毒素中毒的症狀,是開始時嘴巴會有刺痛的感覺、頭痛和噁心,一般快的話在食用貝殼後數分鐘至至少一小時後就會出現上述症狀。根據所食用已被污染的貝殼的數量,毒素將會攻擊人體中樞神經,嚴重的話或能致命。

目前暫無治療麻痹性貝殼中毒的方法,因此公衆受促若食用貝殼後出現上述症狀,要立即前往鄰近診所或醫院就醫。

“漁業局將會與衛生局合作,進一步收集其他地區的海洋生物樣本進行化驗和持續監督有關情況,”雷納說。 -Insight Sabah

登載於 2012年12月18日

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Red tide warning in Sabah west coast

Borneo Post, 13 Dec 2013

Samples of bivalves taken from Kuala Penyu District, particularly the Setompok Lake area, and from waters off Kota Kinabalu District, including Gaya Island, Sepanggar Bay (Kuala Menggatal included) and Likas Bay as well as Papar, Putatan and Tuaran districts have shown to contain toxic level of PSP toxins

Fisheries Department Director Rayner Stuel Galid

KOTA KINABALU: The Department of Fisheries yesterday advised the people across the state to refrain from consuming any type of shellfish or bivalves immediately following the detection of red tide in the west coast of Sabah.

In issuing the red tide warning, the department’s director Rayner Stuel Galid also advised the public to refrain from collecting shellfish and bivalves from the sea areas in the west coast with the intention to eat or sell them.

“If consumers do wish to eat bivalve shellfish, they are advised to make certain that these bivalves are not obtained from the waters off the west coast of Sabah,” he said.

The shellfish include oysters (tiram), mussels (kupang), cockles (kerang) and any type of clam-like food.

Rayner said the presence of Paralytic Shellfish Poisoning (PSP) toxins has been detected in samples of bivalves (kerang-kerangan) obtained from the sea in parts of the west coast of Sabah.

He said samples of bivalves taken from Kuala Penyu District, particularly the Setompok Lake area, and from waters off Kota Kinabalu District, including Gaya Island, Sepanggar Bay (Kuala Menggatal included) and Likas Bay as well as Papar, Putatan and Tuaran districts have shown to contain toxic level of PSP toxins.

The department also detected the presence of high densities of the PSP-causative organism, that is the dinoflagellate, Pyyrodinium bahamense var compressum, in samples of seawater taken from those affected areas.

Rayner said red tide occurances in Sabah in past years have revealed bivalves to be as toxic as 8000MU (Mouse Unit), where 400MU is considered the lowest limit as the dangerous level for humans.

Some of the shellfish samples taken to date have shown the levels to be as high as 4,010MU in Papar and 1270MU in Tuaran and is considered as very high.

“There is a high possibility that other adjoining districts will be affected (by the red tide) in the future. It is also expected that shellfish will become more toxic as these dinoflagellates become more numerous in the sea,” he said in a statement.

Rayner said safe to eat are all types of prawns and crabs including shovel-nosed lobsters, mantis shrimps, all types of coral fish and fish which are predatory such as sharks and sting rays, barracuda, tenggiri, jacks, etc, and deep sea fishes.

As a prudent measure, consumers are advised to throw away the guts and gills of any fish to be eaten and be washed properly.

Also, any type of dried, canned, bottled or salted fish products are safe to eat, he added.

The first PSP case in Sabah was recorded in 1976 where 202 people were reported to be suffering from PSP and seven died.

Since then, PSP occurances have been detected every few years off the west coast of Sabah.

Rayner said early symptoms of PSP include tingling of the lips and tongue which may begin within minutes of eating poisonus shellfish or may take an hour or two to develop.

Depending on the amount of toxin a person has ingested, symptoms may progress to a sensation of “pricking of pins and needles” of the skin and then loss of control of arms and legs, followed by difficulty in breathing. Some people have experienced a sense of floating or nausea.

If a person consumes enough poison, muscles of the chest and abdomen become paralysed. Death can result in as little as two hours, as muscles used for breathing become paralysed.

Rayner advised the public to get medical treatment immediately at the nearest hospital or clinic if they experience the symptoms.

“There is no medication available for PSP or Saxitoxin poisoning; in general, supportive measures are the basis of treatment for PSP and in severe cases, with the use of a mechanical respirator or oxygen,” he said.

The department is working closely with the Health Department and will conduct further sampling and testing of other fishes and life sea collected from other districts to determine if they are toxic and dangerous to human health, he said adding further information can be obtain from http://fishdept.sabah.gov.my/download/redtideinfo.doc

Alert over red tide: Fish from Sabah banned

Borneo Post, 15 Dec 2012

BANDAR SERI BEGAWAN: In view of the growing concern of the red tide phenomenon in Sabah, the Department of Fisheries under the Ministry of Industry and Primary Resources has temporarily slapped a ban on the importation of small fish from Sabah, Borneo Bulletin reported.

According to a press release issued by the Department of Fisheries, people are banned from importing the following fishes from Sabah; Tamban, Aur-Aur, Rumahan Bini, Rumahan Laki, Temanong, Selidai, Sanglar, Geronggong, Basong-Basong, Pusu, Kuasi and Termanong Bersurat, Molluscs, including oysters, cockles and mussels from Sabah are also banned.

The latest monitoring and laboratory analysis carried out by the Department of Fisheries yesterday has shown that the waters of Brunei Darussalam are now affected by red tide. The affected areas are Pelumpong and Pancang Hijau.

The Department of Fisheries of Sabah, meanwhile, through its media informed the public that some of the water areas of Sabah are affected by red tide, including Kuala Penyu, Pulau Gaya, Sepanggar Bay, Menggatal Bay, Likas Bay, Papar, Putatan and Tuaran districts.

As a precautionary measure, members of the public are reminded to remove the guts, gills and other internal organs of fish before cooking. The public should also refrain from eating small fish of which their gills, guts and internal organs cannot be removed and also Molluscan shellfish as well as fish from any of the affected areas or from unknown origins.

The Department of Fisheries will continue to monitor the red tide situation. In the meantime, the public, especially fishermen, can assist the department by reporting any water discolouration or mass fish mortality in the country’s water and beaches by calling 2770066, 8614867, 8878833, 8847846, 8787337 or 8675409.

Red tide still at worrying level – Fisheries Dept

Borneo Post, 18 Dec 2012

KOTA KINABALU: The incidence of red tide in Papar, Tuaran, Tasik Sitompok (Kuala Penyu) and here is still at a worrying level.

Fisheries Department senior officer (head of the quality division), Boniface Jintony told The Borneo Post yesterday that the concentration of toxic algal blooms remained high at the affected areas.

“The incident began late November this year and has remained high,” he said.

He added that when the situation returns to normal, the department would issue another reminder to tell consumers that the red tide incident is over.

“As of now, we are still monitoring the situation,” he said.

Boniface also explained that most fish were safe for consumption as long as their gills and intestines were removed.

“We are asking people to avoid eating the ‘slender rainbow sardine’ fish which is also known as Dussumleria sp or ‘ikan tamban’. It is unsafe to eat the fish species because they eat plankton. People should also avoid shells as they accumulate high toxin,” he said.

Commenting on some 300 trawlers moored at the KK market waterfront, he said: “They are moored there because they do not understand the situation.”

He added that the trawler operators could continue to catch and sell fish and were requested to avoid catching and selling the slender rainbow sardine fish as well as shells during the present period.

“They get confused each time we make an announcement of red-tide incidents,” he said.