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Morphological variations of plicofollis species (siluriformes: ariidae) in Peninsular Malaysia: an insight into truss network approach

Siti Waznah Abdurahman, Mohd Azmi Ambak, Shahreza Md Sheriff, Ying GS, Ahmad Azfar Mohamed, Ahmed Jalal Khan Chowdhury

Sains Malaysiana, 2016;45:1-7.

Ariid catfishes, belong to family Ariidae is considered as one of the taxonomically problematic groups, which is still under review by fish taxonomist globally. Species level identification of some ariids often resulted in species misidentification because of their complex characters and very similar morphological characters within genera. A vigilant and detail observation is very important during the species level identification of ariid species. In these contexts, this study was carried out in order to determine the morphological variations of one of the ariid genera, Plicofollis, which have been giving misleading taxonomic information in the south-east Asian countries. A Truss network technique was used throughout the study period. The study was conducted based on 20 truss measurements using 22 to 23 specimens per species, namely P. argyropleuron, P. nella and P. tenuispinis found in Peninsular Malaysian waters. Morphological variations were determined using a multivariate technique of discriminant function analysis (DFA). The results obtained in this study showed that discriminant analysis using truss network measurements has produced very clear separations of all the species in Plicofollis group. Several important morphological characters have been identified, which represent body depth and caudal regions of the fish. The documentary evidences of these variables could be considered as the constructive functional features, which could enable us to assess more accurately to distinguish the species within this complex Ariidae family.

Matched MeSH terms: Tetraodontiformes
Assessment of proximate composition and tetrodotoxin content in the muscle of yellow puffer fish, xenopterus naritus (richardson 1848) from Sarawak, Malaysia

Mohd Nor Azman, A., Samsur, M., Mohammed, M., Fasihuddin, B.A.

International Food Research Journal, 2015;22(6):2280-2287.
MyJurnal

This study is to report the proximate compositions as well as tetrodotoxin (TTX) content in the muscles of yellow puffer fish Xenopterus naritus that collected from Kg. Manggut and Kabong, Sarawak. The internal organs of 26 and 20 specimens from Kg. Manggut and Kabong respectively were removed by the local people that had skills and experiences with the preparation of yellow puffer fish. In general, the moisture contents were ranging between 75.2% and 80.6%. X. naritus from Kabong showed higher crude protein contents (88.2% dry weight) than the same species from Kg. Manggut (87.9% dry weight) and not significantly different (p>0.05). X. naritus from Kg. Manggut demonstrated a significantly higher (p

Matched MeSH terms: Tetraodontiformes
Fulltext Puffer fish poisoning: a family affair

Chua HH, Chew LP

Med J Malaysia, 2009 Jun;64(2):181-2.
PMID: 20058587 MyJurnal

Tetrodotoxin poisoning has been commonly reported in Japan due to consumption of contaminated fugu (puffer fish). Poisoning is possible when the fish is not cleansed and dressed properly. Puffer fish is considered a delicacy by the Japanese as the fish meat is very tender and tasty. A certified chef trained in ways of preparing this poisonous fish should only be allowed to serve this fish. Despite careful preparation, this fish remains a deadly meal for many as 50 deaths are reported annually1 . An outbreak of 34 cases of tetrodotoxin occurred in Johor in May 2008. Here, we would like to report three cases of tetrodotoxin poisoning in a family who consumed this deadly fish and was admitted to Hospital Sultanah Aminah Johor Bahru (HSAJB).

Matched MeSH terms: Tetraodontiformes*
Fulltext Detection of tetrodotoxin and saxitoxin in dried salted yellow puffer fish (Xenopterus naritus) eggs from Satok Market, Kuching, Sarawak

Mohd Nor Azman, A., Wan Norhana, M.N.

International Food Research Journal, 2013;20(5):2963-2966.
MyJurnal

The detection of tetrodotoxin (TTX) and saxitoxin (STX) in dried salted yellow puffer fish (Xenopterus naritus) eggs bought from Satok Market, Kuching, Sarawak was carried out by mouse bioassay method. The amount of TTX and STX detected in the samples ranged from 95.6-195.5 Mouse Unit (MU)/g and 1.72-3.58 MU/g respectively. The results indicate that the dried salted eggs samples were found to contain TTX 9-20 times above the regulatory limit for human consumption (10 MU/g). Although detected, the amount of STX in salted eggs extract was slightly below the accepted threshold limit (4 MU/g). The local public in Sarawak should be educated on the potential danger of consuming dried salted puffer fish eggs in addition to the current warnings on puffer fish.

Matched MeSH terms: Tetraodontiformes
Fulltext Complete life cycle of a pennellid Peniculus minuticaudae Shiino, 1956 (Copepoda: Siphonostomatoida) infecting cultured threadsail filefish, Stephanolepis cirrhifer

Ismail N, Ohtsuka S, Maran BA, Tasumi S, Zaleha K, Yamashita H

Parasite, 2013;20:42.
PMID: 24165196 DOI: 10.1051/parasite/2013041

The complete life cycle of a pennellid copepod Peniculus minuticaudae Shiino, 1956 is proposed based on the discovery of all post-embryonic stages together with the post-metamorphic adult females infecting the fins of threadsail filefish Stephanolepis cirrhifer (Monacanthidae) cultured in a fish farm at Ehime Prefecture, Japan. The hatching stage was the infective copepodid. The life cycle of P. minuticaudae consists of six stages separated by moults: the copepodid, four chalimi and adult. In this study, the adult males were observed frequently in precopulatory amplexus with various stages of females however, copulation occurs only between adults. Fertilized pre-metamorphic adult females carrying spermatophores may detach from the host and settle again before undergoing massive differential growth into the post-metamorphic adult female. Comparison of the life cycle of P. minuticaudae has been made with three known pennellids: Lernaeocera branchialis (Linnaeus, 1767), Cardiodectes medusaeus (Wilson, 1908) and Lernaeenicus sprattae (Sowerby, 1806). Among the compared species, P. minuticaudae is the first ectoparasitic pennellid to be discovered to complete its life cycle on a single host without any change in infection site preferences between infective copepodid and fertilized pre-metamorphic female.

Matched MeSH terms: Tetraodontiformes/parasitology*
Fulltext Stonefish envenomation of hand with impending compartment syndrome

Tay TK, Chan HZ, Ahmad TS, Teh KK, Low TH, Wahab NA

J Occup Med Toxicol, 2016;11:23.
PMID: 27168760 DOI: 10.1186/s12995-016-0112-y

BACKGROUND: Marine stings and envenomation are fairly common in Malaysia. Possible contact to various marine life occurs during diving, fishing and food handling. Even though majority of fish stings are benign, there are several venomous species such as puffer fish, scorpion fish, lionfish, stingray and stonefish that require urgent medical treatment. Stonefish is one of the most venomous fish in the world with potential fatal local and systemic toxicity effects to human.
CASE PRESENTATION: We reported a case of stonefish sting complicated with impending compartment syndrome.
CONCLUSIONS: Medical staff should be alert about the possibility of this potential emergency in standard management of stonefish stings.

Matched MeSH terms: Tetraodontiformes