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Journal articles on the topic 'Merluccius spp'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Cipriani, Paolo, Gian Luca Sbaraglia, Michela Paoletti, et al. "The Mediterranean European hake, Merluccius merluccius : Detecting drivers influencing the Anisakis spp. larvae distribution." Fisheries Research 202 (June 2018): 79–89. http://dx.doi.org/10.1016/j.fishres.2017.07.010.

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2

Oliva, Marcelo E., Leyla Cárdenas, Isabel M. Valdivia, Paulina Bruning, Luis Figueroa-Fabrega, and Rubén Escribano. "Spatial Pattern of Genetic Diversity in the Blood Fluke Aporocotyle argentinensis (Digenea, Aporocotylidae) from South American Hakes (Pisces: Merluccidae)." Diversity 14, no. 9 (2022): 772. http://dx.doi.org/10.3390/d14090772.

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Distribution of blood fluke Aporocotyle spp. parasitizing Merluccius species from the coasts of South America (Peru, Chile and Argentina) constitutes an excellent opportunity to evaluate the geographical amplitude in which a parasite can exploit the same host species. Phylogenetic analyses (partial sequences of SSU rDNA, LSU rDNa, and cox1 gene) were performed to characterize the genetic lineage of Aporocotyle species described from South American Hake: Merluccius australis, M. gayi, and M. hubbsi. The Phylogenetic analyses (SSUrDNA and LSUrDNA) revealed an absence of genetic variability in Ap

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Mladineo, Ivona, and Vedran Poljak. "Ecology and Genetic Structure of Zoonotic Anisakis spp. from Adriatic Commercial Fish Species." Applied and Environmental Microbiology 80, no. 4 (2013): 1281–90. http://dx.doi.org/10.1128/aem.03561-13.

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ABSTRACTConsumption of raw or thermally inadequately treated fishery products represents a public health risk, with the possibility of propagation of liveAnisakislarvae, the causative agent of the zoonotic disease anisakidosis, or anisakiasis. We investigated the population dynamics ofAnisakisspp. in commercially important fish—anchovies (Anisakis), sardines (Sardina pilchardus), European hake (Merluccius merluccius), whiting (Merlangius merlangus), chub mackerel (Scomber japonicus), and Atlantic bluefin tuna (Thunnus thynnus)—captured in the main Adriatic Sea fishing ground. We observed a sig

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Fuentes, Màrius V., Elena Madrid, Clara Cuesta, et al. "Anisakid Nematodes and Potential Risk of Human Anisakiasis through the Consumption of Hake, Merluccius spp., Sold Fresh in Spanish Supermarkets." Pathogens 11, no. 6 (2022): 622. http://dx.doi.org/10.3390/pathogens11060622.

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Nematode parasite species belonging to the Anisakis simplex complex are the most important cause of human anisakiasis through the consumption of (mainly) undercooked, previously not frozen, or conveniently treated fish. In Spain, the consumption of hake has been recognized as an important source of this parasitosis. With the aim of shedding light on the risk factors that can influence the potential risk of human anisakiasis in Spain through the consumption of fresh hake sold by nationwide supermarket chains, a total of 536 small hake specimens belonging to the species Merluccius bilinearis cau

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Ramilo, Andrea, Helena Rodríguez, Santiago Pascual, Ángel F. González, and Elvira Abollo. "Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds." Animals 13, no. 2 (2023): 197. http://dx.doi.org/10.3390/ani13020197.

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The European hake, one of the most commercially valuable species in ICES fishing areas, is considered an important neglected source of zoonotic risk by nematode parasites belonging to the genus Anisakis. Merluccius merluccius is, by far, the most important host of Anisakis spp. at the European fishing grounds, in terms of demographic infection values, and carries the highest parasite burden. These high parasite population densities within an individual fish host offer a chance to explore new sources of variations for the genetic structure of Anisakis spp. populations. A total of 873 Anisakis s

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Santos, Maria J., Matilde Matos, Lisa Guardone, et al. "Preliminary Data on the Occurrence of Anisakis spp. in European Hake (Merluccius merluccius) Caught Off the Portuguese Coast and on Reports of Human Anisakiosis in Portugal." Microorganisms 10, no. 2 (2022): 331. http://dx.doi.org/10.3390/microorganisms10020331.

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Parasitic nematodes of the genus Anisakis are among the most important biological hazards associated with seafood. A survey of Anisakis spp. in European hake (Merluccius merluccius) was undertaken as this species is a staple of the Portuguese diet. Moreover, a literature review of cases of anisakiosis reported from Portugal, a country with one of the highest levels of fish consumption in the world, was also carried out. Seventy-five European hake caught in the Atlantic Ocean off the northern coast of Portugal were analyzed to determine the infection levels and site distribution of Anisakis spp

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Luca, F., A. Vovlas, A. Troccoli, and N. Vovlas. "A polyphasic approach with molecular phylogeny for the characterization of Anisakis pegreffii (Anisakidae: Nematoda) in fishes from Adriatic Sea." Helminthologia 50, no. 2 (2013): 112–18. http://dx.doi.org/10.2478/s11687-013-0118-2.

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AbstractIn this study we investigated the morphometric and molecular characterization of a liver encapsulated third-stage larval population of Anisakis spp. infecting Merluccius merluccius and Lophius piscatorius caught in the Adriatic Sea waters (southern Italy). A polyphasic approach based on PCR-RFLP profiles of the ITS region, mitochondrial COI (cytochrome c oxidase subunit 1), sequencing and molecular phylogeny of ITS and mitochondrial COI was used to identify Anisakis larvae collected from fish samples. PCR-RFLP analysis showed three banding pattern corresponding to the peculiar pattern

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Garcia-de-Vinuesa, Alfredo, Iván Sola, Federico Quattrocchi, Francesc Maynou, and Montserrat Demes. "Linking trawl fleet dynamics and the spatial distribution of exploited species can help to avoid unwanted catches: the case of the NW Mediterranean fishing grounds." Scientia Marina 82, S1 (2018): 165. http://dx.doi.org/10.3989/scimar.04755.17a.

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With the full implementation of the landing obligation on 1 January 2019, In European waters it will become mandatory for the trawling fleet to land at port all catches of certain species because, according to Article 15 of the new European Common Fisheries Policy, the species subject to the minimum conservation reference size (MCRS) cannot be discarded. Additionally, since 2005, trawlers over 15 m in length are required to carry an onboard vessel monitoring system (VMS), which generates information on fleet dynamics. The objective of this work was to provide a tool for avoiding unwanted catch

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9

Caputo, M., S. Elwen, T. Gridley, et al. "Dietary plasticity of two coastal dolphin species in the Benguela upwelling ecosystem." Marine Ecology Progress Series 669 (July 8, 2021): 227–40. http://dx.doi.org/10.3354/meps13755.

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Defining the trophic relationships of marine predators and their dietary preferences is essential in understanding their role and importance in ecosystems. Here we used stable isotope analysis of skin samples (δ15N values reflecting trophic level and δ13C values reflecting foraging habitat) to investigate resource partitioning and spatial differences of the feeding ecology of dusky dolphins Lagenorhynchus obscurus and Heaviside’s dolphins Cephalorhynchus heavisidii from 2 coastal study sites separated by 400 km along the coast of central (Walvis Bay) and southern (Lüderitz) Namibia in the Beng

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10

Díaz-Formoso, Lara, Vanessa Silva, Diogo Contente, et al. "Antibiotic Resistance Genes, Virulence Factors, and Biofilm Formation in Coagulase-Negative Staphylococcus spp. Isolates from European Hakes (Merluccius merluccius, L.) Caught in the Northeast Atlantic Ocean." Pathogens 12, no. 12 (2023): 1447. http://dx.doi.org/10.3390/pathogens12121447.

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The indiscriminate use of antibiotics has contributed to the dissemination of multiresistant bacteria, which represents a public health concern. The aim of this work was to characterize 27 coagulase-negative staphylococci (CoNS) isolated from eight wild Northeast Atlantic hakes (Merluccius merluccius, L.) and taxonomically identified as Staphylococcus epidermidis (n = 16), Staphylococcus saprophyticus (n = 4), Staphylococcus hominis (n = 3), Staphylococcus pasteuri (n = 2), Staphylococcus edaphicus (n = 1), and Staphylococcus capitis (n = 1). Biofilm formation was evaluated with a microtiter a

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11

Silva, Alex, María Teresa Rojas, Pamela Morales, Tamara Muñoz, and Álvaro Machuca. "Anisakid nematodes prevalence in Chilean hake (Merluccius gayi gayi) commercialized in the city of Talca, Chile." Latin American Journal of Aquatic Research 48, no. 1 (2020): 136–40. http://dx.doi.org/10.3856/vol48-issue1-fulltext-2300.

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The main objective of this work was to determine the presence of anisakid larvae in fresh Chilean hake Merluccius gayi gayi coming from the coastal area near the city of Talca, Chile, commonly commercialized by a regional fish supply center located in the same city. Flesh and viscera of 214 fish were analyzed via direct observation, and the prevalence of parasitism was calculated. The results showed a prevalence of 100% and 24.3% in viscera and flesh, respectively. Morphologic characterization of 138 randomly selected larvae was performed via diaphanization technique, observing 106 larvae of A

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12

Grant, W. Stewart, and Robin W. Leslie. "Inter-ocean dispersal is an important mechanism in the zoogeography of hakes (Pisces: Merluccius spp.)." Journal of Biogeography 28, no. 6 (2001): 699–721. http://dx.doi.org/10.1046/j.1365-2699.2001.00585.x.

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13

Barnes, Keith N., Peter G. Ryan, and Christian Boix-Hinzen. "The impact of the hake Merluccius spp. longline fishery off South Africa on procellariiform seabirds." Biological Conservation 82, no. 2 (1997): 227–34. http://dx.doi.org/10.1016/s0006-3207(97)00020-7.

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14

Jereb, P., and S. Ragonese. "An Outline Of The Biology of the Squid Illex Coindetii in the Sicilian Channel (Central Mediterranean)." Journal of the Marine Biological Association of the United Kingdom 75, no. 2 (1995): 373–90. http://dx.doi.org/10.1017/s0025315400018245.

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INTRODUCTIONThe genus Illex is likely to constitute a large portion of the annual world ommastrephid squid catches (Roper et al, 1984), even though specific official statistics are difficult to obtain. The broad-tail short-fin squid Illex coindetii is a widespread species ranging from the western to the eastern Atlantic (Roper et al., 1984) and east through the whole Mediterranean Sea (Mangold & Boletzky, 1987). Usually a by-catch of important fisheries, it is caught mainly by trawlers. Although its economic value is lower than that of other squid species (i.e. Loligo spp.), in the Sicilia

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15

Ali, Ashraf, Pietro Di Taranto, Antonio Parisi, et al. "A fish market survey using a novel PCR-sequencing-based protocols for the identification of commercial significant fish species." Potravinarstvo Slovak Journal of Food Sciences 16 (October 12, 2022): 656–69. http://dx.doi.org/10.5219/1777.

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This study developed a simple, specific, and affordable PCR-sequencing-COI gene-based protocol for the simultaneous identification of some important commercial fish species: Merluccius merluccius, Lates niloticus, Gadus morhua, Ruvettus pretiosus, Pangasianodon hypophthalmus, Epinephelus spp. For this study, a local market survey on fish was carried out to evaluate the application of labelling laws and to detect fraudulent actions using the developed PCR protocols. Ten specimens of each fish species of interest were obtained from wholesale fishery plants and were utilized for the protocol deve

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16

Silva-Segundo, Claudia A., Mariela Brito-Chavarria, Eduardo F. Balart, et al. "Clarifying the taxonomic status of Merluccius spp. in the northeastern Pacific: a combined morphological and molecular approach." Reviews in Fish Biology and Fisheries 21, no. 2 (2010): 259–82. http://dx.doi.org/10.1007/s11160-010-9166-6.

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17

REED, CECILE, CHAGANTI KALAVATI, KEN MACKENZIE, CATHERINE COLLINS, and WILLY HEMMINGSEN. "Pseudalataspora vanderlingeni n. sp. (Myxosporea: Bivalvulida) from gall bladders of the Cape hakes Merluccius capensis Castelnau, and M. paradoxus Franca (Teleostei: Merlucciidae)." Zootaxa 4497, no. 3 (2018): 422. http://dx.doi.org/10.11646/zootaxa.4497.3.6.

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A new species of myxosporean parasite is described from the gall bladders of the hakes Merluccius capensis Castelnau and M. paradoxus Franca (Pisces: Teleostei) caught off the west and south coasts of South Africa. The new species, Pseudalataspora vanderlingeni, is described morphologically and molecularly and compared with the 15 other species of Pseudalataspora previously described from marine fish. Although a molecular description is available on GenBank for only one of these 15 species, the morphological description supports the status of P. vanderlingeni as a new species. Earlier reports,

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18

Pérez, Montse, Angie M. Santafé-Muñoz, Miguel Balado, and Pablo Presa. "Methodological evaluation of DNA-based molecular keys to identify categories of mislabelling in commercial products from genus Merluccius spp." Food Chemistry 239 (January 2018): 640–48. http://dx.doi.org/10.1016/j.foodchem.2017.06.138.

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19

Lugo-Pérez, Luisana, Iván Vera-Escalona, Mario George-Nascimento, Antonio Brante, and Maribet Gamboa. "Morfometría y diagnóstico molecular de larvas de Anisakis (Nematoda: Ascaridida) en Merluccius gayi (Chordata: Gadiformes) y Dosidicus gigas (Mollusca: Teuthida) en la región del Biobío, Chile." Revista de Biología Marina y Oceanografía 59, no. 1 (2024): 51–67. http://dx.doi.org/10.22370/rbmo.2024.59.1.4461.

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Las especies del género Anisakis (Nematoda: Anisakidae) son parásitos marinos con ciclo de vida indirecto. Los crustáceos planctónicos actúan como primeros hospedadores intermediarios, mientras que peces y cefalópodos intervienen como segundos hospedadores intermediarios o paraténicos, finalmente el ciclo se cierra en los cetáceos, mamíferos marinos que son los principales hospedadores definitivos del género. En el ciclo de vida, las larvas de Anisakis pueden ser ingeridas por el hombre interviniendo como huésped accidental, lo que puede ocasionar anisakiasis, una zoonosis adquirida a través d

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Attwood, Colin G., Samantha L. Petersen, and Sven E. Kerwath. "Bycatch in South Africa's inshore trawl fishery as determined from observer records." ICES Journal of Marine Science 68, no. 10 (2011): 2163–74. http://dx.doi.org/10.1093/icesjms/fsr162.

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Abstract Attwood, C. G., Petersen, S. L., and Kerwath, S. E. 2011. Bycatch in South Africa's inshore trawl fishery as determined from observer records. – ICES Journal of Marine Science, 68: 2163–2174. Ship-based observer data were analysed to describe the volume, composition, utilization, and size structure of catches made by South Africa's inshore trawlers. The sampling rate was 3.5% of all trawls, including unsorted and discard samples. In all, 137 nominal species were recorded. Analysis of species composition separated the trawling grounds into seven areas, providing a framework for stratif

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21

Geoghegan, Paul, Michael Murphy, Maureen Madray, M. McManus, Eric Nestler, and Ann Pembroke. "The structure of the larval fish assemblage of Massachusetts Bay in 2008–2012 and 2015–2022." Fishery Bulletin 123, no. 2 (2025): 105–18. https://doi.org/10.7755/fb.123.2.3.

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Ichthyoplankton samples were collected monthly at 2 stations in Massachusetts Bay from 2008 to 2012 and from 2015 to 2022 to characterize the larval fish assemblage for this area. The fauna was composed of 2 major assemblages that were 87% dissimilar from each other and associated with season and water temperature. A cold-water assemblage of low density (43.26 larvae/1000 m3) occurred from November through May at mean water column temperatures between 4.1°C and 10.3°C, with sand lances (Ammodytes spp.) the dominant taxon as a group. A warmwater assemblage of higher density (432.58 larvae/1000

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Field, J. G., C. G. Attwood, A. Jarre, K. Sink, L. J. Atkinson, and S. Petersen. "Cooperation between scientists, NGOs and industry in support of sustainable fisheries: the South African hake Merluccius spp. trawl fishery experiencea." Journal of Fish Biology 83, no. 4 (2013): 1019–34. http://dx.doi.org/10.1111/jfb.12118.

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23

De Koning, Adrianus J., and Theodora H. Mol. "Rates of free fatty acid formation from phospholipids and neutral lipids in frozen cape hake (Merluccius spp) mince at various temperatures." Journal of the Science of Food and Agriculture 50, no. 3 (1990): 391–98. http://dx.doi.org/10.1002/jsfa.2740500311.

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24

Preti, Antonella, Stephen M. Stohs, Gerard T. DiNardo, et al. "Feeding ecology of broadbill swordfish (Xiphias gladius) in the California current." PLOS ONE 18, no. 2 (2023): e0258011. http://dx.doi.org/10.1371/journal.pone.0258011.

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The feeding ecology of broadbill swordfish (Xiphias gladius) in the California Current was described based on analysis of stomach contents collected by fishery observers aboard commercial drift gillnet boats from 2007 to 2014. Prey were identified to the lowest taxonomic level and diet composition was analyzed using univariate and multivariate methods. Of 299 swordfish sampled (74 to 245 cm eye-to-fork length), 292 non-empty stomachs contained remains from 60 prey taxa. Genetic analyses were used to identify prey that could not be identified visually. Diet consisted mainly of cephalopods but a

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25

Lomeli, Mark J. M., and W. Waldo Wakefield. "Efforts to reduce Chinook salmon (Oncorhynchus tshawytscha) and rockfish (Sebastes spp.) bycatch in the U.S. west coast Pacific hake (Merluccius productus) fishery." Fisheries Research 119-120 (May 2012): 128–32. http://dx.doi.org/10.1016/j.fishres.2011.11.003.

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26

King, Sarah E., Robert W. Hannah, Steven J. Parker, Keith M. Matteson, and Steven A. Berkeley. "Protecting rockfish through gear design: development of a selective flatfish trawl for the U.S. west coast bottom trawl fishery." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 3 (2004): 487–96. http://dx.doi.org/10.1139/f03-153.

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This study evaluated the potential to reduce the bycatch of rockfish (Sebastes spp.) in a flatfish trawl fishery by developing a selective trawl that separates flatfish from rockfish using differences in their behavior as the trawl net approaches. Using an alternate haul, randomized block design, we compared catches between a commonly used combination trawl and a newly designed, low-rise trawl incorporating a "cutback" headrope. For most of the target flatfish species, the experimental trawl had a 2559% higher catch rate (kilograms) than the control net (P < 0.05), consistent with greater

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Lomeli, Mark J. M., Scott D. Groth, Matthew T. O. Blume, Bent Herrmann, and W. Waldo Wakefield. "Effects on the bycatch of eulachon and juvenile groundfish by altering the level of artificial illumination along an ocean shrimp trawl fishing line." ICES Journal of Marine Science 75, no. 6 (2018): 2224–34. http://dx.doi.org/10.1093/icesjms/fsy105.

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Abstract We examined how catches of ocean shrimp (Pandalus jordani), eulachon (Thaleichthys pacificus), and juvenile groundfish could be affected by altering the level of artificial illumination along the fishing line of an ocean shrimp trawl. In the ocean shrimp trawl fishery, catches of eulachon are of special concern, as the species’ southern Distinct Population Segment is listed as “threatened” under the US Endangered Species Act. Using a double-rigged trawl vessel, with one trawl illuminated and the other unilluminated, we compared the catch efficiencies for ocean shrimp, eulachon, and ju

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SAKUMA, KEITH M., STEPHEN RALSTON, and DALE A. ROBERTS. "High-frequency patterns in abundance of larval Pacific hake, Merluccius productus, and rockfish, Sebastes spp., at a single fixed station off central California." Fisheries Oceanography 16, no. 4 (2007): 383–94. http://dx.doi.org/10.1111/j.1365-2419.2007.00440.x.

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29

Mas-Riera, Josep. "Changes during growth in the retinal structure of three hake species, Merluccius spp. (Teleostei: Gadiformes), in relation to their depth distribution and feeding." Journal of Experimental Marine Biology and Ecology 152, no. 1 (1991): 91–104. http://dx.doi.org/10.1016/0022-0981(91)90137-l.

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30

Bricknell, Ian R., James E. Bron, and Tim J. Bowden. "Diseases of gadoid fish in cultivation: a review." ICES Journal of Marine Science 63, no. 2 (2006): 253–66. http://dx.doi.org/10.1016/j.icesjms.2005.10.009.

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AbstractGiven the rapid development of intensive culture systems for cold-water marine gadoids such as cod (Gadus morhua), haddock (Melanogrammus aeglefinus), hake (Merluccius spp.), and ling (Molva molva), an urgent need exists to examine likely threats posed by disease in intensive gadoid culture. While little is known about diseases that may affect or be introduced by cold-water marine gadoid fish once the animals are brought into intensive commercial culture systems, certain risks can be inferred both from an examination of disease problems experienced during the introduction of intensive

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Oriji, O., and I. U. Nwabekee. "Determination of heavy metals and proximate analysis of <i>Merluccius</i> spp and <i>Clarias gariepinus</i>." Scientia Africana 24, no. 1 (2025): 79–88. https://doi.org/10.4314/sa.v24i1.8.

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This study investigated the heavy metal concentrations and proximate composition in stockfish and catfish samples from the Choba market near the University of Port-Harcourt, Rivers State. The research aimed to provide comprehensive data on the safety and nutritional value of these commonly consumed fish species. Five samples of each fish species were analyzed for heavy metals using Atomic Absorption Spectrophotometry and proximate composition following standard analytical procedures. The results revealed that stockfish contained higher protein levels (61.38%) and ash content (15.10%) compared

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Antonelis, George A., Brent S. Stewart, and Wayne F. Perryman. "Foraging characteristics of female northern fur seals (Callorhinus ursinus) and California sea lions (Zalophus californianus)." Canadian Journal of Zoology 68, no. 1 (1990): 150–58. http://dx.doi.org/10.1139/z90-022.

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The foraging characteristics of northern fur seals (Callorhinus ursinus) and California sea lions (Zalophus californianus) from San Miguel Island, California, were studied during the 1985 summer breeding season. A radio transmitter was attached to 25 postpartum females of each species and used to determine their locations at sea and the frequency and duration of their feeding trips. Northern fur seals usually foraged in the oceanic zone where the mean water depth was 933 m (n = 12). California sea lions principally were found in the neritic zone, where water depth averaged 323 m (n = 9). Most

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Kyrova, Veronika, Pavla Surmanova, Vladimir Ostry, Irena Rehurkova, Jiri Ruprich, and Marie Jechova. "Sea fish fraud? A confirmation of Gadoid species food labelling." British Food Journal 119, no. 1 (2017): 122–30. http://dx.doi.org/10.1108/bfj-03-2016-0113.

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Purpose Gadoid fish and hake are the species of fishes most frequently imported to the Czech Republic. The purpose of this paper, cross-country hygiene study, is to determine sea fish fraud labelling on the Czech market and catering. Design/methodology/approach In total, 57 samples of commercial Gadoid fish product from different manufacturers, distributors and catering facilities were gathered. Gadidae family, hake (Merluccius spp. Raf.), saithe (Pollachius virens L.), Atlantic cod (Gadus morhua L.), Alaska pollock (Theragra chalcogramma Pall.), were detected in fish meat, fish products and f

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Bernal Bajo, A., LR Castro та D. Costalago. "Elucidating trophic pathways of the most abundant fish larvae in northern Patagonia using δ13C and δ15N isotopes". Marine Ecology Progress Series 650 (17 вересня 2020): 253–67. http://dx.doi.org/10.3354/meps13374.

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The alternation of the classic and microbial food-webs in spring and winter, respectively, and the trespass towards higher trophic levels represented by fish early stages, are not well understood in Patagonia. These trophic routes were investigated in the inner Sea of Chiloe, an estuary of high ecological relevance in northern Patagonia. The isotopic values of δ13C and δ15N of ichthyoplankton and particulate organic matter were analyzed in late winter and spring 2017 to evaluate whether seasonal changes (e.g. in the composition of the freshwater discharge) were reflected in the isotopic signal

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Milano, Ilaria, Massimiliano Babbucci, Alessia Cariani, et al. "Outlier SNP markers reveal fine-scale genetic structuring across European hake populations (Merluccius merluccius)." Molecular Ecology 23, no. 1 (2013): 118–35. http://dx.doi.org/10.1111/mec.12568.

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36

Cuende, Elsa, Luis Arregi, Bent Herrmann, Manu Sistiaga, and Mikel Basterretxea. "Release efficiency and selectivity of four different square mesh panel configurations in the Basque mixed bottom trawl fishery." Scientia Marina 84, no. 1 (2020): 39. http://dx.doi.org/10.3989/scimar.04975.17a.

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Reduction of discards from the Basque mixed bottom trawl fishery is a challenge. To improve the selective properties of the gear used by the fleet and supplement codend size selection, a square mesh panel (SMP) installed in the upper panel of the trawl was introduced in 2006. However, recent studies have shown that the release efficiency of this SMP is low due to lack of contact between the fish and the SMP. In this study, we tested the release efficiency of the SMP for four different gear configurations. We tested the effect of adding LED lights at two different positions and altering panel s

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Westgaard, Jon-Ivar, Arved Staby, Jane Aanestad Godiksen, et al. "Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic." ICES Journal of Marine Science 74, no. 5 (2017): 1300–1310. http://dx.doi.org/10.1093/icesjms/fsw249.

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Recently, there have been reports of increased abundance and landings of European hake in the northern part of the species range. Biological studies are however scarce and information about finer scale population structure important for stock assessments and fishery management is largely lacking. Here, we report on a population genetic study using neutral and outlier SNP loci assessing population structure in hake in the north-eastern parts of its range in the Atlantic. Hake samples from localities along the west coast of Norway, the Kattegat, the northern North Sea, and one locality in the Ba

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Cuende, Elsa, Manu Sistiaga, Bent Herrmann, and Luis Arregi. "Optimizing size selectivity and catch patterns for hake (Merluccius merluccius) and blue whiting (Micromesistius poutassou) by combining square mesh panel and codend designs." PLOS ONE 17, no. 1 (2022): e0262602. http://dx.doi.org/10.1371/journal.pone.0262602.

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Gear modifications in fisheries are usually implemented to obtain catch patterns that meet management objectives. In the Basque bottom trawl fishery, gear regulations include the use of a square mesh panel (SMP) placed at the top panel of the extension piece of the trawl to supplement diamond mesh codend selectivity. However, the catch patterns obtained with this combination have raised concern among scientists and authorities. This study combines new data on different SMP and codend designs with existing data from the literature to produce new results that are applied to predict the size sele

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Leone, Agostino, Paula Álvarez, Dorleta García, Fran Saborido-Rey, and Naiara Rodriguez-Ezpeleta. "Genome-wide SNP based population structure in European hake reveals the need for harmonizing biological and management units." ICES Journal of Marine Science 76, no. 7 (2019): 2260–66. http://dx.doi.org/10.1093/icesjms/fsz161.

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Abstract Despite its economic importance, the population structure of the European hake, Merluccius merluccius, is unresolved, and the species is assessed based on two stocks (northern and southern) separated by the Capbreton Canyon. In order to shed light into the European hake population structure, we used Restriction-site-Associated DNA sequencing (RAD-seq) to discover and genotype thousands of genome-wide single nucleotide polymorphisms in more than a hundred samples. Our population genetic inferences confirm differentiation of Mediterranean and northeast Atlantic locations and reveal mana

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Landschoff, Jannes, and Rafael Lemaitre. "Differentiation of three common deep-water hermit crabs (Crustacea, Decapoda, Anomura, Parapaguridae) from the South African demersal abundance surveys, including the description of a new species of Paragiopagurus Lemaitre, 1996." ZooKeys 676 (May 23, 2017): 21–45. https://doi.org/10.3897/zookeys.676.12987.

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Deep-water hermit crabs of the family Parapaguridae can be abundant (up to 20 kg or 1000 hermit crab individuals per haul) in the trawl bycatch collected during South African demersal abundance research surveys. Until recently, only two parapagurid species had been recognized in the bycatch; Parapagurus bouvieri Stebbing, 1910, and Sympagurus dimorphus (Studer, 1883). Detailed examination of numerous samples of parapagurid specimens from research surveys revealed the existence of a third, undescribed species previously confounded with S. dimorphus, but in fact belonging to a different genus. T

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El-Asely, Amel M., Reham S. El Madawy, Marwa A. El Tanany, and Gehan S. Afify. "Prevalence and Molecular Characterization of Anisakidosis in both European (Merluccius merluccius) and Lizard Head (Saurida undosquamis) Hakes." GSTF Journal of Veterinary Science 1, no. 2 (2015). http://dx.doi.org/10.7603/s40871-015-0001-3.

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AbstractThis study focuses on Anisakidosis as a disease caused by a number of Anisakid larvae including Anisakis simplex, Pseudoterranova decipiens, Hysterothylacium spp. and Contracaecum spp., through assessing the clinical signs and the clinical examination of the disease in 170 Lizard head (Saurida undosquamis) and 160 European hakes (Merluccius merluccius) during the period from April 2011 to July 2012. In addition, identification of the recovered larvae morphologically and using random modified polymorphic DNA (RAPD-PCR) technique. No obvious clinical signs were observed in the examined f

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Casti, Daniele, Christian Scarano, Maria Cristina Piras, et al. "Occurrence of nematodes of the genus Anisakis in Mediterranean and Atlantic fish marketed in Sardinia." Italian Journal of Food Safety 6, no. 1 (2017). http://dx.doi.org/10.4081/ijfs.2017.6185.

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Anisakiasis is a gastrointestinal fishborne zoonosis caused by the ingestion of third stage larvae of the genus <em>Anisakis</em>. Between January and December 2013, 1112 specimens of four commercial fish species (<em>Engraulis encrasicolus, Merluccius merluccius, Scomber colias</em> and <em>Trachurus mediterraneus</em>) marketed in Sardinia (Italy) were examined for <em>Anisakis</em> sp. The overall prevalence of <em>Anisakis</em> spp larvae was 39.9%, all morphologically identified as Type I. <em>Scomber colias</em> show

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Jouini, Jihene, Nadia Besbes, Saloua Sadok, and Lamia Gargouri. "Does Anisakis spp. infestation affect the proximate composition, fatty acids, and minerals contents of its host Merluccius merlucccius?" Parasitology Research, October 9, 2023. http://dx.doi.org/10.1007/s00436-023-07996-z.

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Valero, Adela, María Mar López-Cuello, Rocío Benítez, and Francisco Adroher. "Anisakis spp. in European hake, Merluccius merluccius (L.) from the Atlantic off north-west Africa and the Mediterranean off southern Spain." Acta Parasitologica 51, no. 3 (2006). http://dx.doi.org/10.2478/s11686-006-0032-6.

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AbstractWe studied the parasitization by Anisakis spp. in European hake (Merluccius merluccius) of 40–52 cm from the Atlantic off north-west Africa and the Mediterranean off southern Spain. Infection parameters differed: The fish from the Atlantic showing a prevalence of 87.97% and a mean intensity of 4.69, while, in those from the Mediterranean, these were 41.27% and 1.73, respectively. In both samples the two-third larval stage types were isolated: Anisakis simplex sensu lato and Anisakis larvae type II, with prevalence of 85.71% and 30.83% in fish from the Atlantic and 41.27% and 1.59% for

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"Assessments of the stocks of Cape hakes Merluccius spp. off South Africa." Oceanographic Literature Review 42, no. 7 (1995): 574. https://doi.org/10.1016/0967-0653(95)90988-b.

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ÜNAL, Vahdet, and Fikret ÖNDES. "Foça'da (Doğu Akdeniz, Türkiye) Trol Balıkçılığı Çöküşün Eşiğinde mi?" Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries, January 19, 2023. http://dx.doi.org/10.46384/jmsf.1209173.

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In this study, we aimed to examine the status and historical change of trawl fishing fleet in the Foça in the Aegean Sea. The data of the study representing all actively working trawlers in 1998-1999 and 2019 were collected through face-to-face interviews with trawler boat owners in Foca. The questionnaire consisted of questions related to the characteristics of the vessels, fishing activity, socio-demographics of fishers, running costs, annual landings of species and management issues. The study indicated that the annual landings of the main target species significantly decreased over the las

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Forde, Sarah, Sophie von der Heyden, Alan Le Moan, et al. "Management and conservation implications of cryptic population substructure for two commercially exploited fishes (Merluccius spp.) in southern Africa." Molecular Ecology Resources, June 8, 2023. http://dx.doi.org/10.1111/1755-0998.13820.

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Thompson, Andrew R., Eric P. Bjorkstedt, Steven J. Bograd, et al. "State of the California Current Ecosystem in 2021: Winter is coming?" Frontiers in Marine Science 9 (September 20, 2022). http://dx.doi.org/10.3389/fmars.2022.958727.

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In late 2020, models predicted that a strong La Niña would take place for the first time since 2013, and we assessed whether physical and biological indicators in 2021 were similar to past La Niñas in the California Current Ecosystem (CCE). The Pacific Decadal Oscillation and Oceanic Niño Index indeed remained negative throughout 2021; the North Pacific Gyre Oscillation Index, however, remained strongly negative. The seventh largest marine heatwave on record was unexpectedly present from April to the end of 2021; however, similar to past La Niñas, this mass of warm water mostly remained seawar

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Lyssikatos, Marjorie C., and Frederick W. Wenzel. "What bycatch tells us about the diet of harbor and gray seals and overlap with commercial fishermen." Frontiers in Conservation Science 5 (April 10, 2024). http://dx.doi.org/10.3389/fcosc.2024.1377673.

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Northwest Atlantic harbor (Phoca vitulina vitulina) and gray (Halichoerus grypus atlantica) seal populations are recovering from early to mid-20th century exploitation, increasing their biological interactions and bycatch in Northeastern US commercial fisheries. We evaluated the seals’ diet composition and compared their prey to commercial catches to assess trophic overlap and potential competition with commercial fisherman target catches. We obtained 148 harbor and 178 gray seal stomach samples from bycatch events that occurred between 2004 and 2018. We learned from the hard part remains that

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"The effects of errors in the placement of the boundary between the west and south coast hake Merluccius spp. stocks on the performance of the current hake management procedure." Oceanographic Literature Review 43, no. 5 (1996): 507. https://doi.org/10.1016/0967-0653(96)85278-1.

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