Carcinoscorpius rotundicauda (Latreille, 1802) population status and spawning behaviour at Pendas coast, Peninsular Malaysia

Fairuz-Fozi, Nur; Satyanarayana, Behara; Zauki, Nurul Ashikin Mat; Muslim, Aidy M.; Mohd-Lokman, Husain; Ibrahim, Salihu; Nelson, Bryan Raveen

doi:10.1016/j.gecco.2018.e00422

Cited by 27 publications

(24 citation statements)

References 41 publications

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“…Seagrass organic matter serves as food for the early‐instar horseshoe crabs, and supports the growth of other benthic invertebrates which, in turn, are the food of older juveniles (Fan et al, ; Kwan, Cheung, & Shin, ). Although dietary contribution of mangrove‐derived organic matter to both Asian horseshoe crab species is very low (<3%, Fan et al, ), intertidal areas with mangrove forest near high‐water line can serve as essential spawning habitats for C. rotundicauda (Fairuz‐Fozi et al, ). This finding is consistent with the results that sediment Chl a and/or TOC contents were, in general, higher at areas near mangrove and seagrass beds (Supplementary Material 3).…”

Section: Discussionmentioning

confidence: 99%

Nursery habitat for Asian horseshoe crabs along the northern Beibu Gulf, China: Implications for conservation management under baseline gaps

Xie

Wang

et al. 2019

Aquatic Conservation

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Identification, protection and enhancement of essential habitats are priority issues for management and restoration of exploited species. The shores utilized by Asian horseshoe crabs as nurseries were surveyed and the coastal habitat characteristics were described in the northern Beibu Gulf of China. Regression models were applied to explore species‐habitat relationships. Fourteen and ten nursery sites were identified for Tachypleus tridentatus and Carcinoscorpius rotundicauda populations, respectively. Xiacun and Jinhaiwan in the eastern region of the northern Beibu Gulf were the essential nurseries for T. tridentatus, whereas Shanxin and Jiaodong in the western part were the primary nursery shores for C. rotundicauda. These shores supported high densities (4–6 individuals/100 m2) of juvenile horseshoe crab populations. Mangrove and seagrass coverage area, coupled with sediment physico‐chemical parameters, particularly grain size, and the environmental heterogeneity of nursery habitats explained the distribution pattern of juvenile populations. Most juvenile populations were found along the outer fringe of mangroves in the small shallow estuary, particularly near outflows of tidal creeks with generally higher chlorophyll a and organic carbon contents. The distribution of high‐density juvenile populations of both species also overlapped with areas of seagrass patches. These findings highlight the importance of mangroves and seagrasses in the nursery habitat use of Asian horseshoe crabs. Preserving the estuarine habitats with these vegetation types and identifying the high‐use nursery sites should be prioritised in China and other Asian places to conserve the declining Asian horseshoe crab populations.

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Section: Discussionmentioning

confidence: 99%

Nursery habitat for Asian horseshoe crabs along the northern Beibu Gulf, China: Implications for conservation management under baseline gaps

Xie

Wang

et al. 2019

Aquatic Conservation

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“…The articulated nature of NHMUK PI In 61012-61018 precludes a moulting event [Vrazo, Braddy, 2011], but likely the lack of preferential specimen orientation, and similarity to clusters of extant xiphosurids suggests that the slab records a mating aggregation (sensu Gutiérrez-Marco et al, 2009). It is also interesting to note that the brackish palaeoenvironment that preserved this cluster is comparable to the environment the smallest extant taxon -Carcinoscorpius rotundicauda [Latreille, 1802] -spawns: "brackish estuaries and rivers in muddy sand and mangrove swamps" [Brockmann, Smith, 2009: 200;Fairuz-Fozi et al, 2018].…”

Section: Discussionmentioning

confidence: 99%

Euproops danae (Belinuridae) cluster confirms deep origin of gregarious behaviour in xiphosurids

Bicknell

Pates

Botton

2019

Arthsel

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“…Field visits to Balok River and its estuary, Balok Beach were carried out from January to December 2016 [1] . Gill nets with 2 m × 200 m (size) × 11.43 cm (mesh size) measurements were installed an hour before rising tides at the river mouth, Balok River confluence and upstream meander.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

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

et al. 2019

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The data available in this repository were gathered from Balok, the only most productive spawning site for horseshoe crabs Tachypleus gigas and Carcinoscorpius rotundicauda in East Coast of Peninsular Malaysia. The mangrove horseshoe crab, C. rotundicauda population and spawning data are available in the first table. The horseshoe crabs were retrieved from Balok River using 11.43 cm mesh size gill nets installed at the river mouth, the confluence and last meander. The arthropods were inspected for damage, abnormality and growth before their release into Balok River, particularly at the site of capture. Sediment samples were retrieved at their spawning grounds to ascertain sediment composition and size classifications which were also processed using Logarithmic Method of Moments. Water parameters like temperature, pH and salinity were also investigated during year 2016. All these information are compiled into the second table and arranged according to the period of data availability. The horseshoe crab catch data of years 2012, 2013, 2014, 2015 and 2016 were made available by artisanal fisher and compiled in the third and fourth table for inter-species comparison.

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Carcinoscorpius rotundicauda (Latreille, 1802) population status and spawning behaviour at Pendas coast, Peninsular Malaysia

Cited by 27 publications

References 41 publications

Nursery habitat for Asian horseshoe crabs along the northern Beibu Gulf, China: Implications for conservation management under baseline gaps

Nursery habitat for Asian horseshoe crabs along the northern Beibu Gulf, China: Implications for conservation management under baseline gaps

Euproops danae (Belinuridae) cluster confirms deep origin of gregarious behaviour in xiphosurids

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

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