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46 results for “Merluccius merluccius”
Fig. 3 in Identification of the stages of ovarian maturation of the Argentine hake Merluccius hubbsi Marini, 1933 (Teleostei: Merlucciidae): advantages and disadvantages of the use of the macroscopic and microscopic scales
Fig. 3. Merluccius hubbsi: oocyte in perinucleolar stage (center) (0.16mm length field).
Fig. 8 in Identification of the stages of ovarian maturation of the Argentine hake Merluccius hubbsi Marini, 1933 (Teleostei: Merlucciidae): advantages and disadvantages of the use of the macroscopic and microscopic scales
Fig. 8. Merluccius hubbsi: postovulatory follicle (arrow) (1.5mm length field).
Fig. 7 in Identification of the stages of ovarian maturation of the Argentine hake Merluccius hubbsi Marini, 1933 (Teleostei: Merlucciidae): advantages and disadvantages of the use of the macroscopic and microscopic scales
Fig. 7. Merluccius hubbsi: oocyte with nuclear migration (1.5mm length field).
Merluccius bilinearis SPAdes preassembly
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Merluccius hubbsi SPAdes preassembly
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Merluccius productus decontaminated FSCR
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Merluccius hubbsi decontaminated FSCR
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Merluccius bilinearis decontaminated FSCR
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Merluccius bilinearis decontaminated gx
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Merluccius hubbsi decontaminated gx
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Merluccius productus decontaminated gx
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Merluccius polylepis decontaminated gx
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Merluccius paradoxus decontaminated gx
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FIGURE 7 in Pseudalataspora vanderlingeni n. sp. (Myxosporea: Bivalvulida) from gall bladders of the Cape hakes Merluccius capensis Castelnau, and M. paradoxus Franca (Teleostei: Merlucciidae)
FIGURE 7. Maximum Likelihood consensus tree showing relationship of Pseudalataspora vanderlingeni (in bold), isolated from Merluccius capensis, to other Ceratomyza species, based on 18S rDNA sequence analysis. Bootstrap values indicating ≥ than 70% support for Maximum Likelihood and Maximum Parsimony analyses respectively are shown. Host species, geographical origin and accession numbers are listed after species names. 1myxosporean species also isolated from Archamia fucata; 2 also isolated from Cheilodipterus quinquelineatus/ Nectamia fusca/ Ostorhinchus cookii/ Apogon doederleini/; 3also isolated from Plectroglyphidodon leucozonus/ Chrysiptera cyanea/ Pomacentrus chrysurus/ Neoglyphidodon melas; 4 also isolated from Clupea harengus; 5also isolated from Aulopus filamentosus; 6also isolated from Aulopus filamentosus; 7also isolated from Aulopus filamentosus; 8myxosporean species isolated from monogenean Diplectanocotyla sp. on the gills of Megalops cyprinoides; 9also isolated from Belone belone.
FIGURE 1–5. FIGURE 1 in Pseudalataspora vanderlingeni n. sp. (Myxosporea: Bivalvulida) from gall bladders of the Cape hakes Merluccius capensis Castelnau, and M. paradoxus Franca (Teleostei: Merlucciidae)
FIGURE 1–5. FIGURE 1. Pseudalataspora vanderlingeni: unstained disporic sporoblast. FIGURE 2. Pseudalataspora vanderlingeni: unstained spore in anterior/sutural view. FIGURE 3 & 4. Pseudalataspora vanderlingeni: unstained spores in valvular view. FIGURE 5. Pseudalataspora vanderlingeni: spore stained with Giemsa in valvular view. Scale bar = 10 µm.
Merluccius polylepis SPAdes preassembly
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Merluccius productus SPAdes preassembly
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Merluccius paradoxus SPAdes preassembly
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Data from: When homoplasy mimics hybridization: a case study of Cape hakes (Merluccius capensis and M. paradoxus)
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Data from: Outlier SNP markers reveal fine-scale genetic structuring across European hake populations (Merluccius merluccius)
Shallow population structure is generally reported for most marine fish and explained as a consequence of high dispersal, connectivity and large population size. Targeted gene analyses and more recently genome-wide studies have challenged such view, suggesting that adaptive divergence might occur even when neutral markers provide genetic homogeneity across populations. Here, 381 SNPs located in transcribed regions were used to assess large- and fine-scale population structure in the European hake (Merluccius merluccius), a widely distributed demersal species of high priority for the European fishery. Analysis of 850 individuals from 19 locations across the entire distribution range showed evidence for several outlier loci, with significantly higher resolving power. While 299 putatively neutral SNPs confirmed the genetic break between basins (FCT = 0.016) and weak differentiation within basins, outlier loci revealed a dramatic divergence between Atlantic and Mediterranean populations (FCT range 0.275–0.705) and fine-scale significant population structure. Outlier loci separated North Sea and Northern Portugal populations from all other Atlantic samples and revealed a strong differentiation among Western, Central and Eastern Mediterranean geographical samples. Significant correlation of allele frequencies at outlier loci with seawater surface temperature and salinity supported the hypothesis that populations might be adapted to local conditions. Such evidence highlights the importance of integrating information from neutral and adaptive evolutionary patterns towards a better assessment of genetic diversity. Accordingly, the generated outlier SNP data could be used for tackling illegal practices in hake fishing and commercialization as well as to develop explicit spatial models for defining management units and stock boundaries.
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