Article
Ecology
Ellen Vlaminck, Esther Cepeda, Tom Moens, Carl Van Colen
Summary: This study investigates the effects of ocean acidification on the feeding and irrigation activities of two common macrofaunal ecosystem engineering species. The results show that these species adapt their behavior in response to future pH conditions, which may have cascading effects on seafloor biodiversity and functioning.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2023)
Article
Ecology
Justin C. Tiano, Jochen Depestele, Gert Van Hoey, Joao Fernandes, Pieter van Rijswijk, Karline Soetaert
Summary: Dynamic sandy environments are generally less vulnerable to mechanical stress compared to silty low-energy habitats. However, biogenic reef communities may provide an exception to this. This study explores the effects of bottom trawl fishing on a coastal ecosystem dominated by the tube-building polychaete Lanice conchilega.
Article
Geosciences, Multidisciplinary
Daphnie S. Galvez, Svenja Papenmeier, Lasse Sander, Alexander Bartholomae, Karen Helen Wiltshire
Summary: Traditional seafloor sediment mapping relies on the experience and expertise of practitioners. However, recent advancements in automated seafloor mapping offer objective methods for practical application. This study used ensemble modelling to classify sediment classes in a large-scale seafloor area in the German North Sea. The resulting seafloor sediment map demonstrates five sediment classes with an overall accuracy of 73%. The study found that ensemble mapping performs well in characterizing coarse materials and provides comparable maps to manual classification.
GEO-MARINE LETTERS
(2022)
Article
Environmental Sciences
Guillaume Brunier, Simon Oiry, Yves Gruet, Stanislas F. Dubois, Laurent Barille
Summary: In this study, a UAV-based survey was conducted in October on Noirmoutier Island in France to map the distribution of reefs and the colonization of epibionts using topographic indices and multispectral indices. The results provide data support for further research on the health index of intertidal reefs.
Article
Ecology
Meggie Hudspith, Jasper M. de Goeij, Mischa Streekstra, Niklas A. Kornder, Jeremy Bougoure, Paul Guagliardo, Sara Campana, Nicole N. van der Wel, Gerard Muyzer, Laura Rix
Summary: The ability of organisms to combine autotrophy and heterotrophy gives rise to the successful nutritional strategy of mixotrophy. This study focuses on the contribution of photoautotrophy to the respiratory demand and carbon diet of the sponge Chondrilla caribensis in low-light environments. The findings suggest that photoautotrophy can provide an important supplemental source of carbon for sponges residing in low-light habitats.
Article
Ecology
Alexander W. Mott, Stacy A. Krueger-Hadfield, April M. H. Blakeslee, Amy E. Fowler
Summary: Novel facultative mutualisms can develop between native and non-native ecosystem engineers, resulting in the retention of the non-native partner. This study found that the native decorator worm Diopatra cuprea exhibits a preference for decorating with the non-native red alga Gracilaria vermiculophylla. Preference plays a role in facilitating the persistence and spread of non-native organisms, potentially altering habitat availability and community interactions.
Article
Ecology
Theresa M. Davenport, A. Randall Hughes, Philine S. E. zu Ermgassen, Jonathan H. Grabowski
Summary: Research on restored reefs shows differences in enhancing nekton recruitment between restored and natural reefs, with insufficient information on characteristics such as size and vertical relief of restored reefs, impacting the return on restoration investments.
ECOLOGICAL APPLICATIONS
(2021)
Article
Ecology
Keziya James, V. Kripa, G. Vineetha, Shelton Padua, R. Parvathy, R. Lavanya, Reena Joseph, K. S. Abhilash, Akhil Babu, Seban John
Summary: This study aimed to evaluate the distribution of plastic litter in the benthic habitat and its ingestion by Polychaeta in the coastal waters of Kochi. The results showed the presence of microplastics in sediments, tubes, and the polychaete community, with polyethylene fragments being the most dominant. The ingestion of microplastics varied significantly with season and year, with higher ingestion during the dry season. SEM-EDS analysis revealed cracks and roughness on the microplastic surface, indicating fragmentation, and the presence of toxic elements, signifying potential toxicity to aquatic life.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Hiromi Kayama Watanabe, Chong Chen, Eijiroh Nishi, Yasuhiko Ohara
Summary: Phyllochaetopterus is a diverse genus of tube-dwelling polychaetes found in various marine environments, with a study revealing at least three cryptic lineages in the serpentinite-hosted Shinkai Seep Field. Molecular barcoding using the mitochondrial COI gene showed a close relationship between the Phyllochaetopterus lineages and confirmed the presence of previously unknown diversity. Further integrative taxonomy is needed to fully understand and characterize the true diversity of Phyllochaetopterus.
PLANKTON & BENTHOS RESEARCH
(2021)
Article
Thermodynamics
James Cartlidge, Nafiz Chowdhury, Thomas Povey
Summary: In this paper, the performance characteristics of a Ranque-Hilsch vortex tube were investigated. The experimental results showed that the cold-exit and hot-exit temperature separations increased with pressure ratio, while the non-dimensional cold-exit temperature reached a minimum at a certain cold-gas mass fraction. The coefficient of performance decreased with increasing pressure ratio and had a peak value at a specific cold-gas mass fraction. The isentropic efficiency was relatively insensitive to pressure ratio and had a peak value at a certain cold-gas mass fraction.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Chengjun Li, Juan Hou, Yaran Wang, Shen Wei, Pengkun Zhou, Zhihao He, Yeming Wang, Huan Zhang, Shijun You
Summary: The performances of smooth-tube and corrugated-tube heat exchangers for ice storage are compared in this paper. Numerical analysis and experiments show that the corrugated-tube heat exchanger has a shorter ice storage duration (25% reduction) and melting duration (16% reduction) compared to the smooth-tube heat exchanger. Additionally, the temperature change rate in the corrugated tube is faster than that in the smooth tube during both ice storage and melting processes.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Marine
Yuhua Zheng, Cuiping Kuang, Jiabo Zhang, Jie Gu, Kuo Chen, Xu Liu
Summary: This study revealed the internal flow structure induced by artificial reefs with an aspect ratio of 2.09, filling a gap in existing research through experiments and numerical modeling. The internal turbulence features were dominated by horizontal vortex structures and showed certain symmetry due to the symmetrical reef configuration.
Article
Chemistry, Multidisciplinary
Fares Djeffal, Lyes Bordja, Redha Rebhi, Mustafa Inc, Hijaz Ahmad, Farouk Tahrour, Houari Ameur, Younes Menni, Giulio Lorenzini, Sayed K. Elagan, Taghreed M. Jawa
Summary: The study found that the oval tube's axis ratio and flatness affect thermal-flow characteristics, with O1 and F1 performing the best. O1 had the lowest friction factor at all Re, while F4 showed less friction compared to other tube shapes.
APPLIED SCIENCES-BASEL
(2021)
Article
Thermodynamics
Fithry Mohd Amir, Mohd Zamri Yusoff, Saiful H. Abu Hassan
Summary: The study found that the vertical flat and tilted flat components on the surface of the multi-faceted tube contribute the most to the enhancement of thermal performance, with significantly higher fluid film thickness than a circular tube. The thickness of the fluid film is uniquely characterized by wall shear stress and fluid average velocity.
APPLIED THERMAL ENGINEERING
(2022)
Article
Engineering, Marine
Tao Yuan, Yu Yao, Zhuangzhi Li, Conghao Xu
Summary: This study aims to investigate the characteristics of wave-driven currents across coral reefs through experiments and numerical modeling. The experimental results reveal the impact of waves on the water flow, while the numerical simulations provide insights into the vertical profiles and variations of the flow along the reef.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)