Inhalation poisoning with palytoxin from aquarium coral: case description and safety advice

Palythoa spp. corals and some other marine organisms contain one of the most poisonous substances ever known – palytoxin (PTX). Due to their modest life requirements and ease of breeding, these corals are popular in home aquariums. Here we refer to a case of PTX poisoning of a middle-aged woman who inhaled poisonous vapours while brushing the corals from live rock and compare it with the available literature. As the case revealed that the symptoms of PTX poisoning are not specific and neither is treatment, our aim was to give a brief tabulated review of the symptoms that may indicate such poisoning. Cases of palytoxin poisoning have been reported worldwide, and severe ones (mostly due to ingestion of contaminated sea food) can end in death. As it appears, most (if not all) poisonings result from unawareness of the risk and reckless handling by aquarists. This is one of the first articles which provides some practical advice about the use of personal protection equipment, including gloves, masks, eyewear, and other clothing during any coral manipulation to minimise the risk. We also draw attention to the lack of marketing/trading regulations for dangerous coral species and/or regulations or instructions dealing with their removal and health protection.

Geography of Chinese rock and roll: cultural, political and economic forces intertwined

<p>This chapter mines the literature to bring out the richness and heterogeneity of Chinese rock. The first part charts the geography of music as the intersection of situated material space and networked topology. Chinese rock thus assembles disparate elements from the two wests: the capitalist-west and, the western China of the silk roads. The second part addresses the live rock scenes that has mushroomed in cities, some as forces of dissenters, some as state-sanctioned role models, or, as a hybrid form of both. </p>

Geography of Chinese rock and roll: cultural, political and economic forces intertwined

<p>This chapter mines the literature to bring out the richness and heterogeneity of Chinese rock. The first part charts the geography of music as the intersection of situated material space and networked topology. Chinese rock thus assembles disparate elements from the two wests: the capitalist-west and, the western China of the silk roads. The second part addresses the live rock scenes that has mushroomed in cities, some as forces of dissenters, some as state-sanctioned role models, or, as a hybrid form of both. </p>

THE POTENTIAL OF ARTIFICIAL LIVE ROCK AS SUBTRATE FOR CORAL SPAT AND EPIBENTHIC ORGANISMS

Over-exploitation on natural live rock promotes the degradation of ocean ecosystem. This concern has been raised since harvesting may reduce the density of marine ornamentals and degrade marine habitat quality. This study aims to develop artificial live rocks (ALR) that potentially to be used as one of the alternatives to reduce the overharvesting activity toward natural live rocks. The study was conducted at Bidong Island, Terengganu started from April to October 2014. There were 2 types of ALR used in this study; rough and smooth surfaces. A total of 64 pieces of ALR were deployed in April 2014 and retrieved in June, August and October 2014 respectively. Identification in terms of coral spat species and macrobenthic organisms was done after the each retrieval. Coral spat was identified based on the morphology of their columella, septa and corallite wall by using Dinolight Digital Camera. Four species of coral juveniles (Pocillopora damicornis, Stylophora pistillata, Seriatopora hystrix and Acropora millepora) were found attached on ALR surfaces. Whereby, there were 11 phyla of epibenthic organisms were found to attach on ALR which dominated by turf algae and red algae. Percentage coverage of epibenthic calculated using Coral Point Count with Excel extension (CPCe) shown ALR was dominated by turf algae after 2 months (69%) and 4 months (20%) of deployment respectively. Afterward, Red algae (31%) dominated after 6 months of deployment. There was significant difference between coral species and the surfaces (p<0.05). However, no significant difference between types of surfaces with sessile macrobenthic organisms (p>0.05). This finding showed that ALR has a potential to be upgraded as artificial reef towards marine habitat restoration.

Rock-cut stratigraphy: sequencing the Lalibela churches

The rock-cut churches of Ethiopia have long intrigued visitors and historians – and have frustrated archaeologists seeking their sequence of construction. Do they belong to one grand ceremonial monastic plan, or a long-lived ritual centre, continually refashioned over time? Since the churches are cut into live rock, the conventional signals of archaeological phasing are hard to find. The authors address these problems at the famous site of Lalibela, showing that, embedded in the cuts and openings, the spoil heaps, and even in the now vanished sediments, the stratigraphic sequence is there to be read.