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ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57

Repeatability of cortisol stress response in the European sea bass (Dicentrarchus labrax) and transcription differences between individuals with divergent responses

Understanding the stress responses of organisms is of importance in the performance and welfare of farmed animals, including fish. Especially fish in aquaculture commonly face stressors, and better knowledge of their responses may assist in proper husbandry and selection of breeding stocks. European ...

A Citizen Science Approach: A Detailed Ecological Assessment of Subtropical Reefs at Point Lookout, Australia

Subtropical reefs provide an important habitat for flora and fauna, and proper monitoring is required for conservation. Monitoring these exposed and submerged reefs is challenging and available resources are limited. Citizen science is increasing in momentum, as an applied research tool and in the variety ...

Dope-Free Technology in Oilfield Tubulars Reduces Environmental Discharge Amongst Other Benefits

Abstract Environmental impact reduction is an essential component that compliments the commitment of every Oil and Gas Operator, Service provider, etc. towards the promotion of a greener environment. From the planning phase of oilfield operations, OCTG- Oil-Country Tubular Goods require the use of ...

Assessing Existing Effluent Analysis Requirements to Improve Effluent Quality Reporting

Abstract Ghanaians have been concerned about the pollution of the surrounding waters of the country since the start of offshore exploration activities (GNA, 2013). Fishermen have complained about the effects on availability of fish, while coastal dwellers have attributed every strange discoloration ...

An Oil and Gas Company Operating in An Area of High Biodiversity - A Model for Sustainable Development and Social Responsibility

Abstract Shell Gabon – a subsidiary of Royal Dutch Shell Plc – has been operating in Gabon since 1960. Since this time Shell's exploration has taken place across a large area of the costal south-west of Gabon, resulting in major discoveries at Gamba (the largest oil field in Gabon at the time) and ...

Making an E&P - Fisheries Management Plan Work in Ghana - A Multi-Stakeholder Approach towards Addressing Implementation Challenges

Abstract The objective of this paper is to describe the process and results of the multi-stakeholder approach to solving marine zone conflicts which could serve as a reference for managing impacts of offshore E&P in other countries. Ghana's fishers and coastal communities had raised many concerns over ...

Role of Recruitment Processes in Structuring Coralligenous Benthic Assemblages in the Northern Adriatic Continental Shelf

Coralligenous biogenic reefs are among the most diverse marine habitats in the Mediterranean Sea. The northern Adriatic mesophotic coralligenous outcrops host very rich and diverse epibenthic assemblages. Several studies quantified the low temporal variability and high spatial heterogeneity of these ...

Consistent individual differences in seed disperser quality in a seed-eating fish

Animal-mediated seed dispersal (zoochory) is considered to be an important mechanism regulating biological processes at larger spatial scales. To date, intra-specific variation in seed disperser quality within seed-dispersing animals has not been studied. Here, I employed seed feeding trials to quantify ...

Impact of ocean acidification on the hypoxia tolerance of the woolly sculpin, Clinocottus analis

As we move into the Anthropocene, organisms inhabiting marine environments will continue to face growing challenges associated with changes in ocean pH (ocean acidification), dissolved oxygen (dead zones) and temperature. These factors, in combination with naturally variable environments such as the ...

The effect of n-3/n-6 polyunsaturated fatty acids on acute reflux esophagitis in rats

Background Polyunsaturated fatty acids (PUFAs) play various roles in inflammation. However, the effect of PUFAs in the development of reflux esophagitis (RE) is unclear. This study is to investigate the potential effect of n-3/n-6 PUFAs on acute RE in rats along with the underlying protective mechanisms. Methods Forty ...

Influence of Endogenous and Exogenous Estrogenic Endocrine on Intestinal Microbiota in Zebrafish

Gender is one of the factors influencing the intestinal microbial composition in mammals, but whether fish also have gender-specific intestinal microbial patterns remains unknown. In this decade, endocrine disrupting chemicals in surface and ground water of many areas and increasing observation of freshwater ...

Characterization of a very rare case of living ewe-buck hybrid using classical and molecular cytogenetics

The natural occurrence of live hybrid offsprings between sheep and goats has been documented in literature, however all the studies have reported the mating of goats with rams, whereas the reciprocal cross was never documented. This study reports on a very rare case of interspecies hybridization occurred ...

Neofunctionalization of zona pellucida proteins enhances freeze-prevention in the eggs of Antarctic notothenioids

The mechanisms by which the eggs of the Antarctic notothenioid fishes avoid freezing are not fully understood. Zona pellucida proteins (ZPs) are constituents of the chorion which forms a protective matrix surrounding the egg. Here we report occurrence of freezing temperature-related gene expansion and ...

Associative Mechanisms Allow for Social Learning and Cultural Transmission of String Pulling in an Insect

Social insects make elaborate use of simple mechanisms to achieve seemingly complex behavior and may thus provide a unique resource to discover the basic cognitive elements required for culture, i.e., group-specific behaviors that spread from “innovators” to others in the group via social learning. ...

Toxic Contents Removal from Gas/Condensate Offshore Produced Water with the Macro Porous Polymer Extraction Technology

Abstract Legislation worldwide is aiming at a good balance between environmental protection and capital expenditure on water treatment systems. There is a clear trend to move from integral discharge parameters like BOD, COD and Dispersed Oil to more focused approaches aiming at Zero Harmful Discharge. ...

A comprehensive investigation of mesophotic coral ecosystems in the Hawaiian Archipelago

Although the existence of coral-reef habitats at depths to 165 m in tropical regions has been known for decades, the richness, diversity, and ecological importance of mesophotic coral ecosystems (MCEs) has only recently become widely acknowledged. During an interdisciplinary effort spanning more than ...

Assessing Existing Effluent Analysis Requirements to Improve Effluent Quality Reporting

Adaptive capacity at the northern front: sockeye salmon behaviourally thermoregulate during novel exposure to warm temperatures

As climate change increases maximal water temperatures, behavioural thermoregulation may be crucial for the persistence of coldwater fishes, such as salmonids. Although myriad studies have documented behavioural thermoregulation in southern populations of salmonids, few if any have explored this phenomenon ...

Are Fish Consumption Advisories for the Great Lakes Adequately Protective against Chemical Mixtures?

Background: The North American Great Lakes are home to > 140 types of fish and are famous for recreational and commercial fishing. However, the presence of toxic substances has resulted in the issuance of fish consumption advisories that are typically based on the most restrictive contaminant. Objectives: We ...

Age, growth, and natural mortality of schoolmaster (Lutjanus apodus) from the southeastern United States

Ages of schoolmaster (n = 136) from the southeastern Florida coast from 1981–2015 were determined using sectioned sagittal otoliths. Opaque zones were annular, forming March–July (peaking in May–June). Schoolmaster ranged in age from 1–42 years; the largest fish measured 505 mm total length (TL) and ...

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