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

Genome‐wide diversity and habitat underlie fine‐scale phenotypic differentiation in the rainbow darter (Etheostoma caeruleum)

Abstract Adaptation to environmental change requires that populations harbor the necessary genetic variation to respond to selection. However, dispersal‐limited species with fragmented populations and reduced genetic diversity may lack this variation and are at an increased risk of local extinction. ...

Habitat characterization and species distribution model of the only large‐lake population of the endangered Silver Chub (Macrhybopsis storeriana, Kirtland 1844)

Abstract The endangered Silver Chub (Macrhybopsis storeriana, Kirtland 1844) is native to North America and primarily riverine, with the only known large‐lake population in Lake Erie. Once a major component of the Lake Erie fish community, it declined and became nearly extirpated in the mid‐1900s. ...

A taxonomic review of the genus Astrocladus (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) from Japanese coastal waters

Japanese species of the genus Astrocladus (Echinodermata, Ophiuroidea, Euryalida, Gorgonocephalidae) are reviewed. Astrocladus coniferus recently has two junior synonyms, A. dofleini Döderlein and A. pardalis Döderlein, however, status of these species has long been questioned. These species concepts ...

Comparing fish prey diversity for a critically endangered aquatic mammal in a reserve and the wild using eDNA metabarcoding

Using environmental DNA (eDNA) metabarcoding, we compared fish diversity in two distinct water bodies within the Yangtze River Basin with known populations of the critically endangered Yangtze finless porpoise (Neophocaena asiaeorientalis; YFP): the Tian-e-Zhou Reserve and Poyang Lake. We aimed to create ...

Century-long cod otolith biochronology reveals individual growth plasticity in response to temperature

Otolith biochronologies combine growth records from individual fish to produce long-term growth sequences, which can help to disentangle individual from population-level responses to environmental variability. This study assessed individual thermal plasticity of Atlantic cod (Gadus morhua) growth in ...

Explicit integration of dispersal-related metrics improves predictions of SDM in predatory arthropods

Fishing spiders (Dolomedes spp.) make an interesting model to predict the impact of global changes because they are generalist, opportunistic predators, whose distribution is driven mostly by abiotic factors. Yet, the two European species are expected to react differently to forthcoming environmental ...

Emergence and Spread of Piscine orthoreovirus Genotype 3

Piscine orthoreovirus (PRV) is a relevant pathogen for salmonid aquaculture worldwide. In 2015, a new genotype of PRV (genotype 3, PRV-3) was discovered in Norway, and in 2017 PRV-3 was detected for first time in Denmark in association with complex disease cases in rainbow trout in recirculating aquaculture ...

A high-density SNP-based genetic map and several economic traits-related loci in Pelteobagrus vachelli

Background A high-density genetic linkage map is essential for QTL fine mapping, comparative genome analysis, identification of candidate genes and marker-assisted selection in aquaculture species. Pelteobagrus vachelli is a very popular commercial species in Asia. However, some specific characters ...

Anemonefish, a model for Eco-Evo-Devo

Anemonefish, are a group of about 30 species of damselfish (Pomacentridae) that have long aroused the interest of coral reef fish ecologists. Combining a series of original biological traits and practical features in their breeding that are described in this paper, anemonefish are now emerging as an ...

Determination and Classification of Benthic Habitat With Lyzenga Algorithm in Tanjung Piayu Waters, Riau Islands

Batam Island has topographical characteristics including elevation, and coastal ecosystems that are considered complete include coral reefs, macroalgae, seagrasses, and mangroves. Tanjung Piayu waters are found in the southern part of Batam Island, which is adjacent to the Barelang bridge that connects ...

IoT enabled Aquaponics with wireless sensor smart monitoring

Aquaponics is an advanced and emerging farming style in which fish farming and vegetable farming turned out to be more professional and precise. This approach uses the latest technology for hydration and nutrition supply to plants and fish. This paper addresses some technical issues faced by the farmers ...

Method for cultivating paralarvae of the common octopus, octopus vulgaris

Method for cultivating paralarvae of the common octopus, Octopus vulgaris up to their settlement (benthic phase) based on a diet of prey comprising the caprelids Phtisica marina and Caprella equilibra and/or gammarideas of the type Jassa spp. The light conditions, water renewal, temperature, amongst ...

Modular floating structure

A floating wetland structure including a plurality of floating connected modules, each module having a frame that is at least partially hollow and a support structure adapted to support a plurality of containers for growing plants in the wetland.

SISTEMA ACQUAPONICO E METODO DI ALLEVAMENTO E COLTIVAZIONE DI PESCI E CROSTACEI

La presente invenzione riguarda un sistema acquaponico che include un apparecchio per l’allevamento di pesci e crostacei e un apparecchio per la coltivazione idroponica integrati tra loro. I letti di coltivazione sono disposti in due o più stadi verticali. In seguito, nei letti di coltura viene colato ...

Aquaculture facility and cultivation method

The invention relates to an aquaculture facility and a method for cultivating aquatic organisms (2), in particular fish. The aquaculture facility (1) has culture containers (6) with culture water (5) for aquatic organisms (2), containers (22) for cultivating food animals (3), in particular marine worms ...

Twin trawl geometry

Stable isotope evidence for dietary diversification in the pre-Columbian Amazon

Archaeological research is radically transforming the view that the Amazon basin and surrounding areas witnessed limited societal development before European contact. Nevertheless, uncertainty remains on the nature of the subsistence systems and the role that aquatic resources, terrestrial mammalian ...

A salmon diet database for the North Pacific Ocean

The North Pacific Marine Salmon Diet Database is an open-access relational database built to centralize and make accessible salmon diet data through a standardized database structure. The initial data contribution contains 21,862 observations of salmon diet, and associated salmon biological parameters, ...

Identifying patterns in the multitrophic community and food-web structure of a low-turbidity temperate estuarine bay

Food web dynamics outline the ecosystem processes that regulate community structure. Challenges in the approaches used to capture topological descriptions of food webs arise due to the difficulties in collecting extensive empirical data with temporal and spatial variations in community structure and ...

Getting to grips with wildlife research by citizen scientists: What role for regulation?

Wildlife research by citizen scientists, involving the capture and handling of animals, provides clear scientific benefits, but also potential risks to animal welfare. We explore debates about how best to regulate such work to ensure that it is undertaken in an ethical manner. We focus on the UK as ...

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