ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
A common practice in acoustic data post-processing is to set, a priori, the intervals of volume backscattering strength for small pelagic fishes zooplankton, which may induce a bias in biomass estimations. To reduce this, a method based in the joint probability event to find one of these groups was ...
Merluccius productus is subject of an important fishery in the North Pacific. In Mexico, this fishery is not fully developed; however, this species is considered a potential resource because of its presence in the west coast of the Baja California peninsula and in the Gulf of California. Recent efforts ...
Hydroacoustic techniques are the most suitable means for the remote sensing of the aquatic environments. Passive acoustics is the action of receiving sounds originated by different sources in the surrounding medium. The sound waves produced by a source are captured by a hydrophone and can be used to ...
In a fishery assessment context, Artificial Neural Networks (ANNs), among other techniques, have been intensively tested for the identification of fish species and pursuing the automatic classification of the schools, based on descriptors extracted from digital echosounder recordings. Prediction of ...
We have been using scientific echo-sounders to map and quantify Engraulis anchoita in the Southern coast of Brazil. This is a low trophic level species and a link from primary producers to top predators. Echo-records collected along thousands of nautical miles contain information about migratory habits ...
The distribution of fish in the water column, particularly of demersal species near the seabed, is relevant to the detection and assessment of fish populations. Here, acoustic data recorded during six consecutive seasons on the Patagonian stock of argentine hake (Merluccius hubbsi) provided detailed ...
Identifying the various drivers of marine ecosystem regime shifts and disentangling their respective influence are critical tasks for understanding biodiversity dynamics and properly managing exploited living resources such as marine fish communities. Unfortunately, the mechanisms and forcing factors ...
We developed a 2D deterministic and probabilistic model to describe Jack Mackerel (Trachurus murphyi) potential habitat using satellite oceanography data and positional variables. The period of analysis was from January 2011 to December 2014, one test by fortnight, i.e., 96 tests in 4 years. Catches ...
This study was conducted to determine the effects of mannan oligosaccharide (MOS) on growth, some immune responses and gut lactic acid bacteria of common carp. Four experimental diets containing 0%, 0.05%, 0.10% and 0.20% MOS were prepared. Each diet was randomly allocated to triplicate groups of fish ...
The Karoun River is major source of water for warmwater fish culture industry in southwest of Iran. The aim of the present study was to investigate the distribution of mercury in tissues of marketable common carp and in bottom sediments of fish farms in Khouzestan province. This study was carried out ...
The binding interaction between gallic acid (GA) and lysozyme (LYS) was investigated and compared by molecular dynamics (MD) simulation and spectral techniques. The results from spectroscopy indicate that GA binds to LYS to generate a static complex. The binding constants and thermodynamic parameters ...
There is increasing evidence of the contribution of irrigation water in the contamination of produce leading to subsequent outbreaks of foodborne illness. This is a particular risk in the production of leafy vegetables that will be eaten raw without cooking. Retailers selling leafy vegetables are increasingly ...
Objective Perivitelline fluid (PVF) of the horseshoe crab embryo has been reported to possess an important role during embryogenesis by promoting cell proliferation. This study aims to evaluate the effect of PVF on the proliferation, chromosome aberration (CA) and mutagenicity of the dental pulp stem ...
Tick-borne diseases are a growing public health concern as their incidence and range have increased in recent decades. Lyme disease is an emerging infectious disease in Canada due to northward expansion of the geographic range of Ixodes scapularis, the principal tick vector for the Lyme disease agent ...
The invasion of anthropogenic carbon dioxide (CO2) into the ocean is shifting the marine carbonate system such that saturation states of calcium carbonate (CaCO3) minerals are decreasing, and this is having a detrimental impact on early life stages of select shellfish species. The global, secular decrease ...
Although there are considerable site-based data for individual or groups of ecosystems, these datasets are widely scattered, have different data formats and conventions, and often have limited accessibility. At the broader scale, national datasets exist for a large number of geospatial features of land, ...
Cytochrome P450 monooxygenases (P450s) are heme-thiolate proteins whose role as drug targets against pathogens, as well as in valuable chemical production and bioremediation, has been explored. In this study we performed comprehensive comparative analysis of P450s in 13 newly explored oomycete pathogens. ...
Currently, one alternative for dietary fish oil (FO) in aquafeeds is vegetable oils (VO) that are devoid of omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFAs). Entirely new sources of n-3 LC-PUFA such as eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids through de novo production are ...
The platform STELLA MARE (Sustainable TEchnologies for LittoraL Aquaculture and MArine REsearch) has for objective to bring responses in the management of the sea in relation with the professional fishing. In this paper, we introduce an experiment on the monitoring of Homarus Gammarus. Using a passive ...
The study area encompasses the Puyuhuapi fjord (300 m depth) and Jacaf channel (200-400 m depth), located at ~44° S in Patagonia. The Puyuhuapi fjord is connected to the open ocean by two mouths, where at one mouth, a shallow sill inhibits ventilation of deep fjord water. This study is aimed to improve ...