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O’Connor’s (1985) article on the Irish naturalist, explorer and ship’s surgeon Bernard O’Reilly is updated with new information on his life and death. His banishment from Dublin society after 1818 is a fiction. Instead, he was away working as a ship’s surgeon in the Southern hemisphere. His achievements are discussed. The controversies concerning his 1818 book on Greenland are re-examined through the availability of new online sources and these vindicate him. He can now be recognised for his accomplishments: a voluntary museum curator, a zoologist, an artist, an accomplished author, and a pioneering explorer – rare achievements for an Irishman in the Georgian Era of the British Empire. His connection with the development of Dún Laoghaire Harbour remains to be documented.

Põldma, M; Põllumäe, A., Jaanus, A., Kotta, I., Reisalu, G., Taevere, T., and Teeveer, K., 2024. Monitoring non-indigenous species in port habitats in the Gulf of Finland, Baltic Sea. In: Phillips, M.R.; Al-Naemi, S., and Duarte, C.M. (eds.), Coastlines under Global Change: Proceedings from the International Coastal Symposium (ICS) 2024 (Doha, Qatar). Journal of Coastal Research, Special Issue No. 113, pp. 392-395. Charlotte (North Carolina), ISSN 0749-0208. Role of commercial harbours and recreational marinas in the spread of non-indigenous species (NIS) has been increased globally. Harbour monitoring is important to assess NIS introduction and spread. The 1-year survey (2022) for species composition, abundance and biomass of mobile epifauna and fish, fouling organisms, benthic infauna, and plankton was conducted in 10 different sites in three harbours of southern Gulf of Finland (Baltic Sea): Tallinn's Old City Harbour, Paldiski South Harbour and Muuga Harbour. The study was carried out in accordance with the HELCOM and OSPAR port survey protocol. A total of 70 taxa were identified, including 9 NIS. In comparison with previous surveys, one new NIS arrival was observed: cumacean Nippoleucon hinumensis.

In putting extraterritoriality into practice in the treaty ports, the British state did not simply withdraw rights from the Chinese state; it inhabited the space made by extraterritoriality by building institutions and engaging in practices which had consequences for the development of the treaty ports, and which need to be at the forefront of any attempt to understand colonialism in China. Through a focus both on the creation of law and institutions, and also on the management of British ‘problem populations’ – violent Europeans and ‘martial’ Indians – this book provides a revision of the history of empire and colonialism in China, explaining important features which have to date been glossed over in studies of other aspects of treaty port colonialism. Colonialism in China casts a long shadow, but key aspects of the British state’s central role in this history have before now been little understood.

Worldwide, studies on polycyclic aromatic hydrocarbons (PAHs) especially focusing on fishing harbours have been found in a limited magnitude only. The characteristics of 16 PAHs and their associated ecological adversities in different environmental compartments of Veraval fishing harbour have been investigated. The concentrations of total PAHs in dissolved, particulate and sediment phases varied from 358.19–42,712 ng L−1, 1450.83–15,291.60 ng g−1 dw and 1263.53–217,560.30 ng g−1 dw, respectively. Two approaches adopted for the source apportionment of PAHs, molecular diagnostic ratio (MDR) method and principal component analysis (PCA), implied the impact of potential anthropogenic PAH sources, including petroleum leakage, pollution from boat repairing, maintenance and burning of coal emissions. The interpretation and integration of indices such as the total toxicity equivalence (TEQcarc), mean risk quotient (M-RQ) and mean effect range-medium quotient (M-ERM-Q) indicated that the harbour areas were under severe threat of ecological risk due to the highest concentration of PAHs, while the offshore region signified a high or moderate level of risk. The present study provides effectual scientific insight into the role of fishing harbours in PAH pollution.

Meteorological tsunamis (“meteotsunamis”) are hazardous tsunami-like waves of atmospheric origin. They have typical periods from a few minutes to about 3 h and typical spatial scales from a few hundred meters to approximately 100–150 km. The waves have different local names in different regions of the world: “rissaga” in the Balearic Islands (Spain), “marrobbio” in Sicily (Italy), “šćiga” in the Adriatic Sea (Croatia), “milghuba” in Malta, and “abiki” in Japan. Meteotsunamis have markedly different generation mechanisms than storm surge or rogue waves, and are mainly produced by direct air pressure forcing. Several recent destructive meteotsunami events have attracted considerable attention to the phenomenon. The present paper is one of the first attempts to classify and overview the strongest events. A total of 51 selected events over the past 27 years are examined and described. Some of these events are well known (e.g. the events of 4 July 1992 Daytona Beach, Florida, 15 June 2006 Ciutadella Harbour, Spain, and 13 June 2013 East Coast of USA), while others have only been mentioned in the media and on the Internet. The list of events includes those that have occurred in the Mediterranean, the Black Sea, Japan, South Korea, Australia, the Great Lakes, South Africa, the USA, Canada, Brazil, the Netherlands and other countries and regions. All meteotsunami events are separated into four groups: “Good-weather harbour”, “Good-weather open-coast”, “Bad-weather harbour (storm seiches)” and “Bad-weather open-coast”. “Good-weather” meteotsunamis are most typical for the Mediterranean region, while “bad-weather” events mainly occur on the Atlantic coasts of the USA and Europe.

A comprehensive study of Aegean harbours and maritime connectivity, focusing on both major and local infrastructures. It provides a framework for interpreting coastal facilities and examines the Byzantine East's port networks. Thessaly serves as a case study, with diverse maritime landscapes and activities from Late Antiquity to the Middle Ages.

Supermassive black holes are now thought to lie at the heart of every giant galaxy with a spheroidal component, including our own Milky Way. The birth and growth of the first 'seed' black holes in the earlier Universe, however, is observationally unconstrained and we are only beginning to piece together a scenario for their subsequent evolution. Here we report that the nearby dwarf starburst galaxy Henize2-10 (refs 5 and 6) contains a compact radio source at the dynamical centre of the galaxy that is spatially coincident with a hard X-ray source. From these observations, we conclude that Henize2-10 harbours an actively accreting central black hole with a mass of approximately one million solar masses. This nearby dwarf galaxy, simultaneously hosting a massive black hole and an extreme burst of star formation, is analogous in many ways to galaxies in the infant Universe during the early stages of black-hole growth and galaxy mass assembly. Our results confirm that nearby star-forming dwarf galaxies can indeed form massive black holes, and that by implication so can their primordial counterparts. Moreover, the lack of a substantial spheroidal component in Henize2-10 indicates that supermassive black-hole growth may precede the build-up of galaxy spheroids.

The terrestrial subsurface contains nearly all of Earth’s freshwater reserves and harbours the majority of our planet’s total prokaryotic biomass. Although genetic surveys suggest these organisms rely on in situ carbon fixation, rather than the photosynthetically derived organic carbon transported from surface environments, direct measurements of carbon fixation in the subsurface are absent. Using an ultra-low level 14 C-labelling technique, we estimate in situ carbon fixation rates in a carbonate aquifer. We find these rates are similar to those measured in oligotrophic marine surface waters and up to six-fold greater than those observed in the lower euphotic zone. Our empirical carbon fixation rates agree with nitrification rate data. Metagenomic analyses reveal abundant putative chemolithoautotrophic members of an uncharacterized order of Nitrospiria that may be behind the carbon fixation. On the basis of our determined carbon fixation rates, we conservatively extrapolate global primary production in carbonate groundwaters (10% of global reserves) to be 0.11 Pg carbon per year. These rates fall within the range found for oligotrophic marine surface waters, indicating a substantial contribution of in situ primary production to subsurface ecosystem processes. We further suggest that, just as phototrophs are for marine biogeochemical cycling, such subsurface carbon fixation is potentially foundational to subsurface trophic webs. Direct measurements of carbon fixation rates in groundwater suggest a substantial contribution of in situ primary production to subsurface ecosystem processes.

Marine heat waves are predicted to become more frequent and intense due to anthropogenically induced climate change, which will impact global production of seafood. Links between rising seawater temperature and disease have been documented for many aquaculture species, including the Pacific oyster Crassostrea gigas. The oyster harbours a diverse microbial community that may act as a source of opportunistic pathogens during temperature stress. We rapidly raised the seawater temperature from 20 °C to 25 °C resulting in an oyster mortality rate of 77.4%. Under the same temperature conditions and with the addition of antibiotics, the mortality rate was only 4.3%, strongly indicating a role for bacteria in temperature-induced mortality. 16S rRNA amplicon sequencing revealed a change in the oyster microbiome when the temperature was increased to 25 °C, with a notable increase in the proportion of Vibrio sequences. This pattern was confirmed by qPCR, which revealed heat stress increased the abundance of Vibrio harveyi and Vibrio fortis by 324-fold and 10-fold, respectively. Our findings indicate that heat stress-induced mortality of C. gigas coincides with an increase in the abundance of putative bacterial pathogens in the oyster microbiome and highlights the negative consequences of marine heat waves on food production from aquaculture.