Report on the occurrence of abnormal four-armed red-knobbed starfish Protoreaster linckii (Echinodermata: Astroidea), Tuticorin coast, south-east coast of India

Chelladurai, G.; Balakrishnan, S.; Jayanthi, G.; Kumar, Kiran; Mohanraj, J.

doi:10.1017/s1755267215000470

Cited by 3 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Arm number abnormalities are relatively common in the family Oreasteridae. Other studies have reported similar conditions for the congener P. regulus, a common starfish from the Western Central Pacific (James, 1999;Shanker & Vijayanand, 2014), P. linckii, widely distributed in the Indian Ocean (James, 1999;Chelladurai et al, 2015;Chelladurai & Doss, 2016), and P. nodosus, from the Indo-Pacific region (Chim & Tan, 2012). Abnormal arm number have been attributed to several causes like injury, regeneration errors, malnutrition, congenital issues, or damages in the metamorphosis process (Moore, 1974;Hotchkiss, 1979;Watts, Scheibling, Marsh, & McClintock, 1983).…”

Section: Discussionmentioning

confidence: 58%

“…columbiae Gray, 1840 (Fisher, 1945), Nardoa galatheae (Lütken, 1864) (James, 1999), Pentaceraster regulus (Müller & Troschel, 1842) (James, 1999;Shanker & Vijayanand, 2014), Pisaster ochraceus (Brandt, 1835) (Fisher, 1945), and Protoreaster linckii (Blainville, 1830) (James, 1999;Chelladurai, Balakrishnan, Jayanthi, Ajeesh-Kumar, & Mohanraj, 2015;Chelladurai & Doss, 2016). Other species where abnormal ray numbers have been recorded include Protoreaster nodosus (Linnaeus, 1758), a starfish widely distributed in the Indo-Pacific region (Chim & Tan, 2012) and Archaster angulatus Müller & Troschel, 1842 from the Indian Ocean and western Pacific (Keesing, 2017).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Population size structure and abnormalities in the number of rays of the Sea Star Pentaceraster cumingi (Valvatida: Oreasteridae) in Bahía Chamela, Mexican Pacific

Galván‐Villa

Solís-Marín

2020

RBT

View full text Add to dashboard Cite

Introduction: The Panamic Cushion Star Pentaceraster cumingi is widely distributed along the Tropical Eastern Pacific. This species strictly produces only five arms, but sometimes, this number varies or show another kind of abnormality. Objective: We aimed to evaluate the population size structure and abnormalities occurrence in the radial pattern of P. cumingi in Bahía Chamela, Jalisco, Mexico. Methods: The population was monitored along four years (2016-2019), in two seasonal periods (warm and cold). During fieldwork, a random sample of individuals was collected. Every starfish was measured, weighted, and evaluated to identify any abnormality on its radial pattern. Results: The highest density of P. cumingi was found in October 2019 (2.03 ± 0.05 ind/m-2), the lower in March 2017 (0.66 ± 0.13 ind/m-2). A total of 849 individuals were collected. For 5-armed starfishes, the average length was 123.8 ± 15.2 mm and the average weight of 326.0 ± 62.4 g. The most frequent length classes ranged from 110 to 120 mm. Of the total of individuals sampled 0.82 % had four arms, 1.06 % six, and 1.41 % had one bifurcated arm. Conclusions: There were differences in the population density and size structure of P. cumingi between seasons. The main causes of abnormalities in the starfish could be due to the changes that occur during larval metamorphosis or by an abnormal regeneration of the arms after a predation attempt.

show abstract

Section: Discussionmentioning

confidence: 58%

mentioning

confidence: 99%

Population size structure and abnormalities in the number of rays of the Sea Star Pentaceraster cumingi (Valvatida: Oreasteridae) in Bahía Chamela, Mexican Pacific

Galván‐Villa

Solís-Marín

2020

RBT

View full text Add to dashboard Cite

show abstract

“…The sea star Protoreaster linckii also named as 'Red-knobbed Starfish' are widely distributed throughout the Indo-Pacific region. It has a gorgeous appearance with bright red or orange reticulate patterns on their dorsal sides and it feeds on sponges, sea anemones and soft corals [23]. The Gulf of Mannar, located along the southeastern part of Tamil Nadu, is a marine biosphere reserve extending from Rameswaram to Kanyakumari acts as a nursery ground for this starfish.…”

mentioning

confidence: 99%

Untitled

2019

RJLBPCS

View full text Add to dashboard Cite

The present study was aimed to evaluate the antibacterial potential of the commonly available sea star Protoreaster linckii. The samples were collected from Mandapam, the Gulf of Mannar, southeast coast of India. Four different extracts like methanol, acetonitrile, dichloromethane and ethanol at varying concentrations ranging from 250 to 1000 µg/ml was used for the experiment to study the inhibitory effects on ten selected human urinary tract infectious pathogenic bacteria. A concentration dependent inhibitory effect was observed in all the extracts of star fish. The results of the study suggested that most of the extracts have strong inhibitory activity against different pathogens similar to the standard drugs. Methanolic extracts exhibited a maximum zone of inhibition (17.00±0.1mm) against gram positive Staphylococcus saprophyticus at the higher concentration. Minimum zone of inhibition (0.700±0.35 and 0.800±0.15 mm) were reported in gram positive S. aureus while using the median and higher concentrations of dichloromethane extracts.

show abstract

Can the global marine aquarium trade (MAT) be a model for sustainable coral reef fisheries?

Watson,

Kohler,

Collins

et al. 2023

Sci. Adv.

View full text Add to dashboard Cite

Globally, 6 million coral reef fishers provide ~25% of emergent countries’ catch, but species have low value. The marine aquarium trade (MAT) targets high-value biodiversity, but missing data amplify draconian governance and demand for international prohibition. To stimulate sustainability and reef conservation investment, we generate a fiscal baseline using the first global analysis of numbers, diversity, and biomass of MAT-traded organisms. Each year, ~55 million organisms worth US$2.15 billion at retail are traded comparable with major fisheries, e.g., tuna. A sustainable MAT also requires overexploitation assessments. We identify 25 species/genera with “Extremely High” risk ratios and place the Indonesian and Sulu-Celebes Seas in the highest exploitation category. Despite predicted hobbyist number increases, unabated reef degradation and low governance will transform the MAT into an aquaculture-dominated industry decoupled from communities (i.e., culture located in importing countries). A “MAT-positive” future requires evidence-based management/governance, consumer education, and sustainable practice incentivization but can address the biodiversity and social and economic inequality crises.

show abstract

Report on the occurrence of abnormal four-armed red-knobbed starfish Protoreaster linckii (Echinodermata: Astroidea), Tuticorin coast, south-east coast of India

Cited by 3 publications

References 8 publications

Population size structure and abnormalities in the number of rays of the Sea Star Pentaceraster cumingi (Valvatida: Oreasteridae) in Bahía Chamela, Mexican Pacific

Population size structure and abnormalities in the number of rays of the Sea Star Pentaceraster cumingi (Valvatida: Oreasteridae) in Bahía Chamela, Mexican Pacific

Untitled

Can the global marine aquarium trade (MAT) be a model for sustainable coral reef fisheries?

Contact Info

Product

Resources

About