نتایج جستجو برای: red mullet
تعداد نتایج: 150760 فیلتر نتایج به سال:
The influence of environmental variables (oceanographic and climatic) on the catch rates striped red mullet (Mullus surmuletus) by artisanal fishery was investigated using different time series models (Dynamic Factorial Analyses; Min-Max Analyses Generalized Least Square models). Climatic oceanographic survey data were collected at areas Portuguese coast (Northwestern, Southwestern South-Algarv...
Habitat-related heterogeneity of striped red mullet Mullus surmuletus heterospecific foraging assemblages was examined off the coast of Spain. Video-based focal-follows conducted on 122 M. surmuletus assemblages (446 total individuals) revealed an array of attendant species (n = 7) with composition linked to benthic habitat complexity; bare sandy substrata were characterized by homospecific gro...
Gyrodactylus aff. mugili Zhukov, 1970 (Monogenoidea: gyrodactylidae) is recorded and described from the gill lamellae of 11 of 35 greenback mullet, Chelon subviridis (Valenciennes) (minimum prevalence 31%), from the brackish waters of the shatt Al-Arab Estuary in southern iraq. the gyrodactylid was also found on the gill lamellae of one of eight speigler’s mullet, Valamugil speigleri (Bleeker),...
Sagittal otolith shape analysis is one of the most widespread techniques worldwide to discriminate fish stock units, as this proxy integrates both environmental and genetic factors. All previous studies have been carried out using two-dimensional (2D) images, a partial representation whole otolith. However, prior identification unit boundaries, influence other potential drivers controlling must...
52 53 Due to the diversity of fleet characteristics and catch composition in Mediterranean fisheries, the General 54 Fisheries Commission for the Mediterranean has placed emphasis on the direct control of fishing capacity 55 and effort rather than catch limitation. This paper aims to analyse the evolution of fishing effort, landings 56 and métiers in three trawling ports of the western Mediterr...
Stock identification is of primarily importance for population structure assessment of economically important species. This study investigates stocks of striped red mullet using three automatic methods of stock identification based on otolith shape and growth marks. Otolith shape is known to be a promising approach for stock identification but interpreting patterns of variance is a difficult pr...
The monogenean Ligophorus chabaudi was originally described on the gills of the flathead mullet, Mugil cephalus, and was subsequently reported on the So-iuy mullet, Mugil soiuy. However, the morphology of sclerotized parts and multivariate statistical analyses suggest that the form from the So-iuy mullet represents a new species. This study provides a description of the new species Ligophorus p...
Listeria monocytogenes, characterized by a high mortality rate in humans, is bacterium that causes listeriosis and found various aquatic products. The aim of this research was to investigate the presence, serotype distribution, virulence factor genes, antibiotic susceptibility L. monocytogenes strains isolated from total 500 fish samples whiting (Merlangius merlangus euxinus) (n:243) striped re...
A bioeconomic model was built to assess the contribution of more selective trawl nets objectives European Multi-Annual Plan for demersal fisheries in Western Mediterranean (WM MAP). The biological submodel parameterized with age-structured population parameters five target stocks WM MAP (European hake, red mullet, deep-water rose shrimp, Nephrops and shrimp) a sixth stock combining remaining co...
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