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203 results for “harbour”
Skutholmen - Harbour area
The area next to the natural harbour on the island of Skutholmen in the Fjällbacka archipelago, Bohuslän Sweden. Source: Objaverse 1.0 / Sketchfab
Falmouth Harbour model
Falmouth Harbour Falmouth Harbour is a horseshoe-shaped bay and natural harbour on the far southern coast of the island of Antigua in Antigua and Barbuda. It is located within Saint Paul Parish. The small township and port of Falmouth lies close to its northern shore. English Harbour is located close to its eastern shore. Its geographic coordinates are 17°1′0″N 61°46′0″W.[1] The harbour lies close to the eastern end of the Shekerley Mountains, a range of hills along Antigua's southern coast. Monk's Hill, the easternmost peak in the range, lies immediately to the north of the bay. Source: Objaverse 1.0 / Sketchfab
Data from: Harbour porpoises respond to small boats by speeding up and moving away
<p>Recreational boats are common in many coastal waters, yet their effects on cetaceans and other sensitive marine species remain poorly understood. To address this knowledge gap, we used drone videos to quantify how harbour porpoises (<em>Phocoena phocoena</em>) responded to a small motorboat approaching at different speeds (10 or 20 knots). The experiment was carried out in shallow waters near Funen, Denmark (55.51° N, 10.79° E) between July and September 2022. Porpoises moved further away from the boat path during approaches at both boat speeds. In addition, porpoises swam faster when approached at 20 knots but not when approached at 10 knots, and they had a higher likelihood of moving away from the boat path when approached at 10 knots but not at 20 knots. Importantly, the received sound level did not depend on how fast the boat approached, suggesting that differences in porpoise responses were related to the speed of the boat's approach rather than to sound itself. The porpoises' behaviour during the minute where the boat was closest did not differ from their behaviour before boat exposure, indicating that the direct impact of small vessels on porpoise behaviour was most likely small. Nevertheless, repeated exposure to noise from small vessels could influence porpoises' foraging efforts and cause them to relocate from disturbed areas. The approach used in this study increases our understanding of recreational boats' impact on harbour porpoises and can be used to inform efficient mitigation measures to help conservation efforts.</p>
Fig. 1 in Spatio-temporal variation of the invasive copepod Oithona davisae in the zooplankton community of Kavala harbour Abstract
Fig. 1: A) Map of Greece, B) Map of the sampling stations in Kavala's harbour.
Data for the project: Shifts in habitat suitability for harbour porpoises leads to reduced importance of Marine Protected Areas
<p><span>Location data from 111 tracked harbour porpoises were collected over the period 1997–2022 as part of a long-term satellite telemetry monitoring program in Denmark</span><span>. Individual harbour porpoises were fitted with Argos satellite tags after being incidentally trapped in pound nets, which are used in near-shore commercial fisheries in the Inner Danish waters</span><span>. </span><span>Argos tags were programmed to make a limited number of daily satellite uplinks and acquire a location at pre-defined times (time of day and duty cycles) to increase the battery lifetime. Duty cycles of the tags varied between 1 and 4 days. Pre-processing of l</span><span>ocation data included filtering out unlikely locations using the Argos-Filter v7.03 </span><span>and the removal of locations on land and those collected within 24 hours after tagging to reduce behavioural bias caused by capture and tagging</span><span>.</span><span> After the data cleaning process, 9 345 <span>locations collected by 111 harbour porpoises were included in this study with an average tracking duration of 118.5 days per individual (min = 8 days, max = 522 days).</span></span></p> <p><span><span>Dataset includes coordinates (latitude and longitude ) of each location and the season and time period it was collected.</span></span></p>
Dataset accompanying: Directional biosonar beams allow echolocating harbour porpoises to actively discriminate and intercept closely-spaced targets
<p>These datasets accompany the manuscript "Directional biosonar beams allow echolocating harbour porpoises to actively discriminate and intercept closely-spaced targets". Three XLSX spreadsheets contain data for trial-specific variables (Dataset A, n=120, used for trial duration, discrimination success, number of scans, buzz duration, range to target at buzz onset, range to target at discrimination), on-axis click candidates (Dataset B, n=1810, used for delta T, delta EL), and true on-axis clicks (Dataset C, n=906, used for SL and bearing calculations). Units of each variable are denoted in the column headers. Details on data collection, curation, and analysis can be found in the Malinka<em> et al</em>. publication ([insert link to DOI once available]).</p> <p>For comments/questions, please contact chloe.e.malinka [at] bio.au.dk</p>
Field Data associated with study: Investigating the water movements around a shallow shipwreck in Big Tub Harbour of Lake Huron: implications for managing underwater shipwrecks.
<p>Field data (Water temperature, pressure, currents, summary of boat presence data) used in analysis of the study (and paper with the same name) titled: Investigating the water movements around a shallow shipwreck in Big Tub Harbour of Lake Huron: implications for managing underwater shipwrecks.</p>
Field Data Associated with Internal Swash Zone Study in Hamilton Harbour, Lake Ontario
<p>Compiled Field data associated with the study:</p> <p>Flood, Bryan, Mathew Wells, Jonathan D. Midwood, Jill Brooks, Yulong Kuai, and Jingzhi Li. "Intense variability of dissolved oxygen and temperature in the internal swash zone of Hamilton Harbour, Lake Ontario." <em>Inland Waters</em> (2021): 1-18.</p> <p>Data is organized by field year, and data type. Metadata is included.</p>
Harbour porpoise hydrophone array data recorded on a gill net
<p><span>Entanglement in net fisheries (static and drift) is the largest known cause of direct anthropogenic mortality to many small cetacean species, including harbour porpoise (<em>Phocoena phocoena</em>), in UK waters. Despite this, little is known about the behaviour of small cetaceans in proximity to nets. </span></p> <p>We have developed a passive acoustic monitoring (PAM) system for tracking the fine scale three-dimensional (3D) movements of echolocating cetaceans around actively fishing nets by localising their acoustic clicks. The system consists of two compact four-channel acoustic recorders with sample-synchronised sensor packages that use 3D motion tracking technology to accurately log orientation, depth, water temperature and ambient light level. Two recorders were used in tandem, with each one attached to and floating above the net float-line. The system can be deployed during normal fishing operations by a trained researcher or experienced fisheries observer. Recordings were analysed in PAMGuard software and the 3D positions of echolocating animals in the vicinity of the system were calculated using an acoustic particle filter-based localisation method.</p> <p>We present findings from four deployments in UK waters (each 1-2 days in duration) in which 12 distinct harbour porpoise encounters yielded a sufficient number of detected clicks to track their movements around the net. The tracks show a variety of behaviours, including multiple instances of animals actively foraging in close proximity to the fishing net.</p> <p><span>We show that a relatively inexpensive PAM system, which is practical to deploy from active fishing vessels, is capable of providing highly detailed data on harbour porpoise behaviour around nets. As harbour porpoises are the one of the most difficult species to localise, this methodology is likely to be suitable for elucidating the behaviour of many other toothed whale species in a variety of situations.</span></p>
Harbour protection with dual chamber oscillating water column devices (HARBOUR OWC) - 1/25 scale model tank test
Among various devices of wave energy converters (WEC), oscillating water column (OWC) devices are one of the concepts successfully deployed around the world. Hence, the necessity to design and develop the recent concept of dual-chamber OWC device attached to an existing coastal breakwater emerged. Former investigation in a wave flume already characterized the hydrodynamic performance of the device for a 1:25 scale model with frontal wave excitations. From this study, the effect of the incident wave direction is highlighted and the effect of the air compressibility on the device performances can be determined. The enclosed dataset refers to the experimental work developed at LNEC within the project Harbour OWC (PTDC/EME-REN/30866/2017) and considers the 3D effect of the incoming waves with a 14º angle of incidence. Data of free surface elevation along the tank and inside the device along with total pressure are presented.
Comparative analysis of two Candida parapsilosis isolates from the patient with a central venous catheter harbouring the Y132F and R398I mutations
<p>This work presents a comparative analysis of 2 clinical isolates of <em>C. parapsilosis</em>; isolated from haemoculture (HC) and central venous catheter (CVC). Both strains harboured Y132F and R398I mutations associated with resistance to fluconazole (FLC). Differences between HC and CVC isolates in terms of virulence, resistance to FLC and lipid distribution were addressed. Expression of the ERG6 and ERG9 genes, lipid analysis, fatty acid composition and lipase activity were assessed by qPCR, thin-layer chromatography/high performance liquid chromatography, gas chromatography and spectrophotometry, respectively. A regulation of the ERG6 and ERG9 genes did not prove any impact on FLC resistance. Analysis of lipid metabolism showed a higher accumulation of lanosterol in both isolates regardless of FLC presence. Additionally, a decreased level in triacylglycerols (TAG) with impact on the composition of total FA was observed for both isolates. Direct impact of the ERG11 mutations to lipid/FA analysis has not been confirmed. The higher lipase activity observed for <em>C. parapsilosis</em> HC isolate could be correlated with the significantly decreased level of TAG. The very close relatedness between both isolates suggests that one isolate was derived from another after the initial infection of the host.</p>
Vessel noise exposures of harbour seals from the Wadden Sea
<p>The North Sea faces intense ship traffic owing to increasing human activities at sea. As harbour seals (<em>Phoca vitulina</em>) are abundant top predators in the North Sea, it is hypothesised that they experience repeated, high-amplitude vessel exposures. Here, we test this hypothesis by quantifying vessel noise exposures from deployments of long-term sound and movement tags (DTAGs) on nine harbour seals from the Wadden Sea. An automated tool was developed to detect intervals of elevated noise in the sound recordings. An assessment by multiple raters was performed to classify the source as either vessels or other sounds. A total of 133 vessel passes were identified with received levels >97 dB re 1µPa RMS in the 2 kHz decidecade band and with ambient noise >6 dB below this detection threshold. Tagged seals spent most of their time within Marine Protected Areas (89 ± 13%, mean ± SD) and were exposed to high-amplitude vessel passes 4.3 ± 1.6 times per day. Only 32% of vessel passes were plausibly associated with an AIS-registered vessel. We conclude that seals in industrialized waters are exposed repeatedly to vessel noise, even in areas designated as protected, and that exposures are poorly predicted by AIS data.</p>
Spatiotemporal variation in pup abundance and preweaning survival of harbour seals (Phoca vitulina) in the St. Lawrence Estuary, Canada (2023)
<p class="MsoNormal"><span>Marine mammal populations worldwide greatly benefitted from conservation measures put in place since the 1970s following overexploitation, and many pinniped populations have recovered. However, threats due to bycatch, interspecific interactions or climate change remain, and detailed knowledge on vital rates, population dynamics and their responses to environmental changes is essential for efficient management and conservation of wild populations. In this study, we quantified pup abundance and survival of individually marked harbour seal (<em>Phoca vitulina</em> Linnaeus, 1758) pups during the preweaning period at Bic Island and Métis sites in the St. Lawrence Estuary from 1998 – 2019. We used mark-recapture models to evaluate competing hypotheses regarding variation in daily preweaning survival rates and capture probability during the pups' first 30 days of life. Pup abundance increased from 76 (95% CI: [59, 101]) to 323 [95% CI: 233, 338] in the past two decades at Bic Island and from 66 [95% CI:47, 91] to 285 [95% CI: 204, 218] at Métis. Preweaning survival was generally higher at Bic (0.73 [95% CI: 0.58,0.82]) than at Métis (0.68 [95% CI: 0.52,0.79]). We hypothesize that differences between habitats and human disturbance contribute to lower preweaning survival at Métis, but behavioural studies are needed to understand the impacts of disturbance on mother-pup interactions during the nursing period. </span></p>
Genotype likelihood (beagle file) and genotype (vcf) files of North Atlantic and Black Sea Harbour porpoises (Phocoena phocoena)
<p><span>The Harbour porpoise (<em>Phocoena phocoena</em>) is a highly mobile cetacean species primarily occurring in coastal and shelf waters across the Northern hemisphere. It inhabits heterogeneous seascapes broadly varying in salinity and temperature. Here we produced 74 whole genomes at intermediate coverage to study Harbour porpoise's evolutionary history and investigate the role of local adaptation in the diversification into subspecies and populations. We identified ~6 million high-quality SNPs sampled at 8 localities across the North Atlantic </span><span>and adjacent waters</span><span>, which we used for population structure, demographic, and genotype-environment association analyses. Our results suggest a genetic differentiation between three subspecies (<em>P.p. relicta</em>, <em>P.p. phocoena,</em> and the recently proposed <em>P.p meridionalis</em>), and three distinct populations within the subspecies <em>P.p. phocoena</em>: Atlantic, Belt Sea, and Proper Baltic Sea. Effective population size and Tajima's D levels suggest a population contraction in Black Sea and Iberian porpoises, but a population expansion in the <em>P.p. phocoena</em> populations</span><span>. </span><span>Phylogenetic trees</span> <span>indicate a post-glacial colonization from a southern refugium. </span><span>Genotype-environment association analysis identified salinity as a major driver in genomic variation and we identified candidate genes putatively underlying adaptation to different salinity levels. </span><span>Our study highlights the value of whole genome resequencing to unravel subtle population structure in highly mobile species, shows how strong environmental gradients and local adaptation may lead to population differentiation and how neutral and adaptive markers give different perspectives on population subdivision. </span><span>The results have great conservation implications as we found inbreeding and low genetic diversity in the endangered Black Sea subspecies and identified the critically endangered Proper Baltic Sea porpoises as a separate population.</span></p>
Computationally defined and in vitro validated putative genomic safe harbour loci for transgene expression in human cells
<p>Selection of the target site is an inherent question for any project aiming for directed transgene integration. Genomic safe harbour (GSH) loci have been proposed as safe sites in the human genome for transgene integration. Although several sites have been characterised for transgene integration in the literature, most of these do not meet criteria set out for a GSH, and the limited set that do have not been characterised extensively. Here, we conducted a computational analysis using publicly available data to identify 25 unique putative GSH loci that reside in active chromosomal compartments. We validated stable transgene expression and minimal disruption of the native transcriptome in three GSH sites <em>in vitro</em> using human embryonic stem cells (hESCs) and their differentiated progeny. Furthermore, for easily targeted transgene expression, we have engineered constitutive landing pad expression constructs into the three validated GSH in hESCs.</p>
Trial of Continuous Once Daily Oral Treatment Using BIBW 2992 (Afatinib) Plus Sirolimus (Rapamune®) in Patients With Non-small Cell Lung Cancer Harbouring an EGFR Mutation and/or Disease Progression F
ClinicalTrials.gov study NCT00993499. IPD Sharing: Not stated. Countries: 1. Publications: 1.
A Phase II Trial of Afatinib(BIBW 2992) in Third-line Treatment for Patients With Stage IIIB/IV Adenocarcinoma of the Lung Harbouring Wild-type Epidermal Growth Factor Receptor[EGFR]
ClinicalTrials.gov study NCT01003899. IPD Sharing: Not stated. Countries: 1. Publications: 1.
A Study of Tarceva (Erlotinib) as First Line Therapy in Participants With Non-Small Cell Lung Cancer Harbouring Epidermal Growth Factor Receptor (EGFR) Mutations
ClinicalTrials.gov study NCT01310036. IPD Sharing: Not stated. Countries: 4. Publications: 1.
Data from: Accuracy and precision of an umbilical-based method for estimating birthdates of pre-weaned harbour seal pups
Open the record for dataset details and reuse information.
Genotype likelihood (beagle file) and genotype (vcf) files of North Atlantic and Black Sea Harbour porpoises (Phocoena phocoena)
Open the record for dataset details and reuse information.
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