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

Abstract

Carcinoscorpius rotundicauda and Tachypleus gigas may co-exist and share common spawning grounds elsewhere but at Balok (East Coast of Peninsular Malaysia), C. rotundicauda is an understudied species. Neglected as research candidate because of inaccessible spawning grounds, smaller size and less commercial value than T. gigas and also, difficulty to attain from the wild has made C. rotundicauda population status remaining unidentified at Balok. This standpoint drove the present attempt because anthropic activities like structure placement and mining are pointsource for runoffs that load sediments into Balok River. While erosion-accretion events have altered Balok River width, the shore sediments in Balok Beach were transitioned between medium-fine and fine sand between years 2012 and

Structural Characterization and Antioxidant Potential of Chitosan by γ-Irradiation from the Carapace of Horseshoe Crab

“…Conversely, the horseshoe crab chitosan reaction rate against free radicals increases with the γ-irradiation and dosage concentration; however, it also has an overdose limit that should not exceed the 1:1 w / w ratio. While chitosan from horseshoe crab carapace may seem beneficial to the biomedical industry due to its negligible use in India, this is not the situation in other Asian countries, where T. gigas was discovered [ 52 , 53 , 54 , 55 , 56 ], and another form of chitosan that originates from Orthoptera ( Calliptamus barbarous and Oedaleus decorus ) was proposed [ 57 ]. Regarding this, chitin and chitosan extraction from invasive or pest species may be useful for controlling over-breeding populations because their bioactive compounds are replenishable (large population size) and reducing production costs in food manufacturing industries.…”

A review on introduced Cichla spp. and emerging concerns

“…Unaware to many, this cichlid may also introduce disease causing microbes and parasites into new environments. While transitional weather influences fisheries distribution in river systems ( Nelson et al., 2016a , b ; Nelson et al., 2019b ; Zauki et al., 2019a , b ), it also affects the distribution and availability of microorganisms in the water body. It only takes one compatible intermediate host in oligotrophic waters for microorganisms like parasites to reproduce (sporulation, fission, budding and egg production) or continue with their life cycle ( Hart and Reynolds, 2002 ; Levsen et al., 2008 ).…”

Compendium of hand, foot and mouth disease data in Malaysia from years 2010–2017

“…Information related to molecular ecology were first divided by ascension numbers and location sources [11] , [12] . The crude data were then filtered and sorted first [13] , [14] , [15] before adapted with hierarchy-identification code system [16] , [17] to ease data comprehension and also extraction.…”