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Water quality monitoring of Peruvian Amazon based in the Internet of Things

This paper presents a water quality monitoring system using low power hardware based in the Internet of Things. Six sensor nodes for water quality monitoring in pisciculture are installed in three region of the Peruvian amazon. The sensor node is a modular hardware composed by control, communication ...

Self-powered continuous time-temperature monitoring for cold-chain management

Temperature management of the food supply-chain is important for ensuring compliance and the quality of perishable products like vaccines and fish. While conventional strategies have relied on using monitors attached to packaging containers, self-powered time-temperature monitoring is attractive because ...

A CMOS fish resistance to period converter with calibration circuits for fish spoilage detecting applications

In this paper, a CMOS fish resistance to period converter with calibration circuits for fish spoilage detecting applications is newly proposed. Different to previous works, a calibration technique to overcome non-linear effect arising from analog processing circuits is proposed in this work. After calibration, ...

Fell‐Muir Lecture: Fibrillin microfibrils: structural tensometers of elastic tissues?

Summary Fibrillin microfibrils are indispensable structural elements of connective tissues in multicellular organisms from early metazoans to humans. They have an extensible periodic beaded organization, and support dynamic tissues such as ciliary zonules that suspend the lens. In tissues that express ...

Quadriacanthus species (Monogenea: Dactylogyridae) from catfishes (Teleostei: Siluriformes) in eastern Africa: new species, new records and first insights into interspecific ...

Background African catfishes of the families Bagridae and Clariidae are known to be parasitized with monogeneans of Quadriacanthus Paperna, 1961 (Dactylogyridae). The genus remains taxonomically challenging due to its speciose nature and relatively wide host range representing two fish orders, i.e. ...

From Tag to Protect: A Tag-Driven Policy Recommender System for Image Sharing

Sharing images on social network sites has become a part of daily routine for more and more online users. However, in face of the considerable amount of images shared online, it is not a trivial task for a person to manually configure proper privacy settings for each of the images that he/she uploaded. ...

Invasive anisakiasis by the parasite Anisakis pegreffii (Nematoda: Anisakidae): diagnosis by real-time PCR hydrolysis probe system and immunoblotting assay

Background Anisakiasis is a fish-borne zoonosis caused by Anisakis spp. larvae. One challenging issue in the diagnosis of anisakiasis is the molecular detection of the etiological agent even at very low quantity, such as in gastric or intestinal biopsy and granulomas. Aims of this study were: 1) to ...

Lagrangian dynamical geography of the Gulf of Mexico

We construct a Markov-chain representation of the surface-ocean Lagrangian dynamics in a region occupied by the Gulf of Mexico (GoM) and adjacent portions of the Caribbean Sea and North Atlantic using satellite-tracked drifter trajectory data, the largest collection so far considered. From the analysis ...

Designing local solutions for emptying pit latrines in low-income urban settlements (Malawi)

A lack of effective options in local technology poses challenges when onsite household sanitation facilities are eventually filled to capacity in unplanned settlement areas within Mzuzu City, located in northern Malawi. Vacuum trucks currently dominate the market but focus on emptying septic tanks in ...

A Lagrangian UAV swarm formation suitable for monitoring exclusive economic zone and for search and rescue

This paper presents the velocity controllers of the simple rigid-body individuals of a 2-D Lagrangian swarm model that can take up a linear formation which could be used by unmanned aerial dynamical systems for searching large areas. The velocity controllers are derived from a Lyapunov function. The ...

Ecological niche modelling tool for aquatic life population distribution using maximum entropy model

The declining trend of the population of certain marine organisms may be due to lack of management where juveniles are being caught and grown out. In the Philippines, among the marine species affected by this practice is the Plectropomus leopardus, locally known as Lapu-Lapu. Identifying the factors ...

Current Barriers to Large‐scale Interoperability of Traceability Technology in the Seafood Sector

Abstract Interoperability is a critical component of full‐chain digital traceability, but is almost nonexistent in the seafood industry. Using both quantitative and qualitative methodology, this study explores the barriers impeding progress toward large‐scale interoperability among digital traceability ...

The Expanding Role of Traceability in Seafood: Tools and Key Initiatives

Abstract In the last decade, a range of drivers within the seafood sector have incentivized the application of traceability to issues beyond food safety and inventory management. Some of the issues motivating the expanded use of traceability within the global seafood sector include: increased media ...

An improved database of coastal flooding in the United Kingdom from 1915 to 2016

Coastal flooding caused by extreme sea levels can produce devastating and wide-ranging consequences. The ‘SurgeWatch’ v1.0 database systematically documents and assesses the consequences of historical coastal flood events around the UK. The original database was inevitably biased due to the inconsistent ...

A new species of Ophryotrocha ( Annelida, Eunicida, Dorvilleidae) from hydrothermal vents on the Southwest Indian Ridge

Abstract Dorvilleids were collected from hydrothermal vents on the Southwest Indian Ridge by manned submersible Jiaolong. These represent a new species of Ophryotrocha that is here described as Ophryotrocha jiaolongisp. n. This is the first dorvilleid described from vents on the Southwest Indian Ridge. ...

Subchronic toxicity of Nile tilapia with different exposure routes to Microcystis aeruginosa: Histopathology, liver functions, and oxidative stress biomarkers

Background: Toxic cyanobacterial blooms (Microcystis aeruginosa contains microcystins [MCs]) have been reported to induce clinicopathological alterations as well as different oxidative stress in aquatic biota. Aim: Three-week subchronic exposure experiment was carried out on Nile tilapia, to determine ...

Origin and invasion of the emerging infectious pathogen Sphaerothecum destruens

Non-native species are often linked to the introduction of novel pathogens with detrimental effects on native biodiversity. Since Sphaerothecum destruens was first discovered as a fish pathogen in the United Kingdom, it has been identified as a potential threat to European fish biodiversity. Despite ...

A test for paedomorphism in domestic pig cranial morphology

Domestic animals are often described as paedomorphic, meaning that they retain juvenile characteristics into adulthood. Through a three-dimensional landmark-based geometric morphometric analysis of cranial morphology at three growth stages, we demonstrate that wild boar (n = 138) and domestic pigs (n ...

The Earth’s Population Can Reach 14 Billion in the 23rd Century without Significant Adverse Effects on Survivability

This paper presents the results obtained from the study of the sustainable state between nature and human society on a global scale, focusing on the most critical interactions between the natural and anthropogenic processes. Apart from the conventional global models, the basic tool employed herein is ...

Water Environment Assessment as an Ecological Red Line Management Tool for Marine Wetland Protection

A ‘red line’ was established, identifying an area requiring for ecological protection in Tianjin, China. Within the protected area of the red line area, the Qilihai wetland is an important ecotope with complex ecological functions, although the ecosystem is seriously disturbed due to anthropogenic activities ...

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