scholarly journals Mangrove horseshoe crab ( Carcinoscorpius rotundicauda Latreille, 1802) populations reveal genetic break in Strait of Malacca, with connectivity along southern coasts of Peninsular Malaysia

2021 ◽  
Author(s):  
Nur Fairuz‐Fozi ◽  
Ludwig Triest ◽  
Nurul Ashikin Mat Zauki ◽  
Anne Marie Kaben ◽  
Bryan Raveen Nelson ◽  
...  
Keyword(s):  
Horseshoe Crab ◽  
Peninsular Malaysia ◽  
Genetic Break ◽  
Strait Of Malacca

scholarly journals Citizen science frontiers horseshoe crab population regain at their spawning beach in East Peninsular Malaysia

2019 ◽  
Vol 232 ◽  
pp. 1012-1020 ◽  
Author(s):  
Nurul Ashikin Mat Zauki ◽  
Behara Satyanarayana ◽  
Nur Fairuz-Fozi ◽  
Bryan Raveen Nelson ◽  
Melissa Beata Martin ◽  
...  
Keyword(s):  
Citizen Science ◽  
Horseshoe Crab ◽  
Peninsular Malaysia ◽  
Crab Population ◽  
Horseshoe Crab Population

The Population Size and Movement of Coastal Horseshoe Crab, Tachypleus gigas (Müller) on the East Coast of Peninsular Malaysia

2015 ◽  
pp. 213-228 ◽  
Author(s):  
Mohamad Faridah ◽  
Noraznawati Ismail ◽  
Amirrudin Bin Ahmad ◽  
Azwarfarid Manca ◽  
Muhammad Zul Fayyadh Azizo Rahman ◽  
...  
Keyword(s):  
Population Size ◽  
Horseshoe Crab ◽  
East Coast ◽  
Peninsular Malaysia

scholarly journals A New Record on the Morphometric Variations in the Populations of Horseshoe Crab (Carcinoscorpius rotundicauda Latreille) Obtained from Two Different Ecological Habitats of Peninsular Malaysia

Our Nature ◽  
1970 ◽  
Vol 8 (1) ◽  
pp. 204-211 ◽  
Author(s):  
T.C. Srijaya ◽  
P.J. Pradeep ◽  
S. Mithun ◽  
A. Hassan ◽  
F. Shaharom ◽  
...  
Keyword(s):  
New Record ◽  
Horseshoe Crab ◽  
Normal Values ◽  
Carapace Width ◽  
Peninsular Malaysia ◽  
Body Parts ◽  
Straight Line ◽  
Different Populations ◽  
Allometric Analysis ◽  
Ecological Habitats

The allometric analysis was used to study the morphometric variability in two different populations of horseshoe crab (Carcinoscorpius rotundicauda, Latreille) collected from Setiu and Gelang Patah (Johor) of Peninsular Malaysia. Values of all parameters in male and female populations of Setiu were recorded high as compared to the horseshoe crab collected from Gelang Patah. In all relationships (total length, carapace length, carapace width and telson length) either with normal values or when values were converted into their logarithmic values, it showed a straight line which indicated that in both populations the increment of all body parts followed an isometric growth.DOI: 10.3126/on.v8i1.4329

scholarly journals The Role of Local Orography on the Development of a Severe Rainfall Event over Western Peninsular Malaysia: A Case Study

2020 ◽  
Vol 148 (5) ◽  
pp. 2191-2209
Author(s):  
Mohd Fadzil Firdzaus Mohd Nor ◽  
Christopher E. Holloway ◽  
Peter M. Inness
Keyword(s):  
Heavy Rainfall ◽  
Flash Floods ◽  
Peninsular Malaysia ◽  
Rainfall Event ◽  
Heavy Rainfall Event ◽  
Limited Area ◽  
Rainfall Events ◽  
Low Level ◽  
Sumatra Island ◽  
Strait Of Malacca

Abstract Severe rainfall events are common in western Peninsular Malaysia. They are usually short and intense, and occasionally cause flash floods and landslides. Forecasting these local events is difficult and understanding the mechanisms of the rainfall events is vital for the advancement of tropical weather forecasting. This study investigates the mechanisms responsible for a local heavy rainfall event on 2 May 2012 that caused flash floods and landslides using both observations and simulations with the limited-area high-resolution Met Office Unified Model (MetUM). Results suggest that previous day rainfalls over Peninsular Malaysia and Sumatra Island influenced the development of overnight rainfall over the Strait of Malacca by low-level flow convergence. Afternoon convection over the Titiwangsa Mountains over Peninsular Malaysia then induced rainfall development and the combination of these two events influenced the development of severe convective storm over western Peninsular Malaysia. Additionally, anomalously strong low-level northwesterlies also contributed to this event. Sensitivity studies were carried out to investigate the influence of the local orography on this event. Flattened Peninsular Malaysia orography causes a lack of rainfall over the central part of Peninsular Malaysia and Sumatra Island and produces a weaker overnight rainfall over the Strait of Malacca. By removing Sumatra Island in the final experiment, the western and inland parts of Peninsular Malaysia would receive more rainfall, as this region is more influenced by the westerly wind from the Indian Ocean. These results suggest the importance of the interaction between landmasses, orography, low-level flow, and the diurnal cycle on the development of heavy rainfall events.

scholarly journals Horseshoe crab bio-ecological data from Balok, East Coast Peninsular Malaysia

Data in Brief ◽  
2019 ◽  
Vol 22 ◽  
pp. 458-463 ◽  
Author(s):  
Nurul Ashikin Mat Zauki ◽  
Behara Satyanarayana ◽  
Nur Fairuz-Fozi ◽  
Bryan Raveen Nelson ◽  
Melissa Beata Martin ◽  
...  
Keyword(s):  
Horseshoe Crab ◽  
East Coast ◽  
Peninsular Malaysia ◽  
Ecological Data

Epibiont Infestation on Horseshoe Crab Tachypleus gigas (Müller) at Pantai Balok in Peninsular Malaysia

Our Nature ◽  
1970 ◽  
Vol 9 (1) ◽  
pp. 9-15 ◽  
Author(s):  
A.N. Tan ◽  
A. Christianus ◽  
M.K. Abdul Satar
Keyword(s):  
Horseshoe Crab ◽  
East Coast ◽  
Peninsular Malaysia ◽  
Genus Level ◽  
Acorn Barnacle ◽  
Horseshoe Crabs ◽  
One Year ◽  
The Individual

A one year study was conducted at Pantai Balok in the east coast of Peninsular Malaysia to investigate the epibiont infestation on horseshoe crab Tachypleus gigas. Number of horseshoe crabs landed was enumerated and each prosoma size (prosoma length and width) was measured. Prosoma width of the horseshoe crabs was used as a morphometric proxy to estimate the approximate age and instar stage of the individual crabs. All horseshoe crabs examined were adult individuals. The carapaces of horseshoe crabs were carefully examined for epibiont infestation. The epibiont was identified to genus level. In this study, acorn barnacle Balanus, pedunculate barnacle Octolasmis, conical slipper shells Calyptraea and flat slipper shells Crepidula were found on the carapaces of horseshoe crab Tachypleus gigas collected from Pantai Balok. DOI: http://dx.doi.org/10.3126/on.v9i1.5725

scholarly journals A new species and new records of Onchidium slugs (Gastropoda, Euthyneura, Pulmonata, Onchidiidae) in South-East Asia

ZooKeys ◽  
2019 ◽  
Vol 892 ◽  
pp. 27-57 ◽  
Author(s):  
Benoît Dayrat ◽  
Tricia C. Goulding ◽  
Munawar Khalil ◽  
Deepak Apte ◽  
Shau Hwai Tan
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
New Records ◽  
Comparative Anatomy ◽  
Peninsular Malaysia ◽  
Mitochondrial Coi ◽  
Distinct Color ◽  
First Time ◽  
A New Species ◽  
Strait Of Malacca

A new species, Onchidium melakense Dayrat & Goulding, sp. nov., is described, bringing the total to four known species in the genus Onchidium Buchannan, 1800. Onchidium melakense is a rare species with only nine individuals found at three mangrove sites in the Andaman Islands and the Strait of Malacca (western Peninsular Malaysia and eastern Sumatra). The new species is delineated based on mitochondrial (COI and 16S) and nuclear (ITS2 and 28S) DNA sequences as well as comparative anatomy. Each Onchidium species is characterized by a distinct color and can easily be identified in the field, even in the Strait of Malacca where there are three sympatric Onchidium species. An identification key is provided. In addition, Onchidium stuxbergi (Westerlund, 1883) is recorded for the first time from eastern Sumatra, and Onchidium pallidipes Tapparone-Canefri, 1889, of which the type material is described and illustrated here, is regarded as a new junior synonym of O. stuxbergi.

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