| effects of acoustic alarms, designed to reduce small cetacean bycatch in gillnet fisheries, on the behaviour of north sea fish species in a large tank. | world-wide many cetaceans drown incidentally in fishing nets. to reduce the unwanted bycatch in gillnets, pingers (acoustic alarms) have been developed that are attached to the nets. in the european union, pingers will be made compulsory in some areas in 2005 and in others in 2007. however, pingers may effect non-target marine fauna such as fish. therefore in this study, the effects of seven commercially-available pingers on the behaviour of five north sea fish species in a large tank were quant ... | 2007 | 17316783 |
| ultrastructural aspects of hepatic coccidiosis caused by goussia lusca n. sp. (apicomplexa: coccidia) infecting trisopterus luscus (gadidae) from the ne atlantic ocean. | goussia lusca n. sp. is described from the liver of pouting trisopterus luscus from the ne atlantic ocean in ibero-atlantic portuguese and spanish waters. mature oocysts were 31.7 (28.8 to 35.4) microm in diameter. each oocyst contained 4 ellipsoidal sporocysts arranged in an aleatory position, and measuring approximately 13.7 x 9.2 microm. each sporocyst contained 2 sporozoites. ultrastructurally, the sporocyst wall consisted of a dense inner layer 115 nm thick, transversely striated, regularly ... | 2006 | 16921998 |
| energy profiling of demersal fish: a case-study in wind farm artificial reefs. | the construction of wind farms introduces artificial hard substrates in sandy sediments. as atlantic cod (gadus morhua) and pouting (trisopterus luscus) tend to aggregate in order to feed around these reefs, energy profiling and trophic markers were applied to study their feeding ecology in a wind farm in the belgian part of the north sea. the proximate composition (carbohydrates, proteins and lipids) differed significantly between liver and muscle tissue but not between fish species or between ... | 2013 | 24210053 |
| anisakid parasites of the pouting (trisopterus luscus) from the cantabrian sea coast, bay of biscay, spain. | an epidemiological survey was undertaken of anisakids in 139 specimens (length: 13.2-24.5 cm) of pouting or bib (trisopterus luscus) captured off the coast of northern spain in the cantabrian sea. third-stage larvae of two species of nematodes, anisakis larvae type i and hysterothylacium aduncum, were isolated. one adult female h. aduncum was also detected in the intestine of one pouting. total prevalence of anisakids was 88.5%. hysterothylacium aduncum and anisakis showed, respectively, prevale ... | 2008 | 18593503 |
| assessment of pollution along the northern iberian shelf by the combined use of chemical and biochemical markers in two representative fish species. | muscle concentrations of organochlorinated compounds as well as biliary levels of polycyclic aromatic hydrocarbons (pahs) and alkylphenols (apes) were determined in two different fish species, the four-spotted megrim (lepidorhombus boscii) and the pouting (trisopterus luscus) collected along the northern iberian coast. additionally, a set of biochemical markers namely, 7-ethoxyresorufin o-deethylase (erod), udp-glucuronosyltransferase (ugt) and catalase (cat) were measured in liver subcellular f ... | 2008 | 18162268 |
| hepatic levels of metal and metallothioneins in two commercial fish species of the northern iberian shelf. | metal levels (cd, pb, hg, cr, fe, cu, zn) together with metallothioneins (mts) were determined in the liver of two commercial fish species collected along the northern iberian coast. the four-spotted megrim (lepidorhumbos boscii) and the pouting (trisopterus luscus) were selected as representative species of the middle/outer (200-500 m) and inner shelf (70-120 m), respectively. metal pollution in the middle/outer shelf was mostly detected in the asturias and basque country areas, whereas in the ... | 2008 | 18054994 |
| [anisakiasis in fresh fish sold in the north of córdoba]. | anisakiasis is a parasitic zoonosis caused by live larvae of the anisakidae family found located in the body cavities and in the muscular systems of osseous fish and cephalopod mollusks. humons inadvertently ingest these larvae when eating raw or undercooked infested fish. symptoms are characterized by gastrointestinal disorders. the purpose of this study is that of ascertaining the frequency of anisakid larvae parasite infestation in fresh fish marketed in northern section of the province of co ... | 2000 | 11217241 |
| the distribution and abundance of lernaeocera lusci (copepoda) on hake (merluccius merluccius) and bib (trisopterus luscus) (teleostei). | distribution patterns, mean intensity and prevalence of lernaeocera lusci (copepoda, pennellidae) in its hosts trisopterus luscus (teleostei, gadidae) and merluccius merluccius (teleostei merlucciidae) were examined, together with parasitic abundance and aggregation in relation to the size of the host. the mean parasite abundance and variance to mean abundance ratio increased with host size, suggesting that the accumulation of this parasite had no noticeable impact on the structure of either hos ... | 1996 | 9024889 |
| huffmanela sp. (nematoda: trichosomoididae) muscular parasite from trisopterus luscus captured off the portuguese coast. | four samples of trisopterus luscus exhibiting unusual black spots on their musculature were obtained from catches made on different days and were rejected as unsuitable for consumption. bipolar eggs somewhat resembling those of the nematode genus huffmanela (nematoda: trichosomoididae) were identified as the cause of these black spots. microscopic analysis revealed the presence of dark-shelled trichinelloid embryonated eggs dispersed throughout the muscle tissue, 73 to 94 x 40 to 59 microm in si ... | 2009 | 19565703 |
| morphological and morphometric study of crustacean parasites within the genus lernaeocera. | two species of lernaeocera are present in the southeastern north sea. lernaeocera lusci infects bib trisopterus luscus, dragonet callionymus lyra and sand goby pomatoschistus minutas. l. minuta is a junior synonym of l. lusci. the second valid species, l. branchialis, infects whiting merlangius merlangus. the two species can be morphologically separated by the antennary processes, which are present in l. lusci and absent in l. branchialis. discriminant functions allow complete separation between ... | 1995 | 8719951 |