Tagging and recapture activities carried out by the Spanish Confederation of Responsible Recreational fishing (ceprr) with the Scientific Coordination of the Spanish Institute of Oceanography (IEO) in the Mediterranean (2008-2011)

During the 2008-2011 period, 1548 specimens of tuna and tuna-like species were tagged by the Spanish Confederation of Responsible Recreational Fishing (CEPRR) with the scientific coordination of the Spanish Institute of Oceanography (IEO). Of these, 1031 bluefin tuna were tagged with conventional tags, whereas 10 other specimens of the same species were tagged with pop-up satellite electronic tags in the Mediterranean. Five pop-up electronic tags remained on the adult specimens up to 110 days. In this period, the specimens stayed in the tagging area except for one of them, which reached Algerian waters in the winter. Similarly, 333 long-finned tuna and up to 184 specimens belonging to other species such as swordfish, little tunny, bonito, frigate tuna and spearfish, were also tagged. Eight bluefin tuna were recaptured, including one adult tuna which was found in the same area where it was tagged (Balearic Islands) 1343 days after release. A juvenile tuna tagged in the Mediterranean was recaptured more than two years after release in the Cantabrian Sea. Over the 2008-2011 period, the IEO provided a number of training courses on conventional and electronic tagging techniques at the different ports where tournaments and/or tagging and release campaigns were carried out. This promoted participation of the CEPRR in the tagging design of the GBYP-ICCAT Atlantic-wide Research Programme on Bluefin Tuna, as well as strategic and scientific interest.Postprin

Physical Properties and Chemical Characterization of Macro- and Micro-Nutriments of Elite Blue Maize Hybrids (Zea mays L.)

Five elite blue maize hybrids and two blue maize landraces were evaluated for various quality characteristics. Hybrids showed physical characteristics demanded by dry-millers and tortilla processors: above 290 g in one hundred-kernel weight test, higher test weight (76.1–78.5 kg hl−1) and lower flotation index (22–61%). Hybrid maize 613 × 27 (9.9%) and 611 × 8 (9.5%) contained the highest protein. Potassium, magnesium, manganese and zinc contents of hybrid maize were higher than landraces by 15, 30, 55 and 41%, respectively. Nutrimental profile showed linoleic acid contents above 50% in 503 × 67, 613 × 27 and 611 × 8 hybrid samples. Lysine levels of landraces and hybrids 503 × 67 (33.9 g kg−1 protein) and 631 × 27 (31.7 g kg−1 protein) were higher than reported for regular white corn (27 g kg−1 protein), as well as the highest tryptophan levels for Chalqueno (6.0 g kg−1 protein) and hybrid 503 × 67 (6.9 g kg−1 protein). Highest protein quality based on its digestibility was found in hybrid 503 × 67. Results indicated that elite blue maize hybrids could be an important source of nutrimental compounds with potential for functional food industries

Análisis de los resultados de las Campañas de marcado de Atún rojo (Thunnus thynnus) del “Tagging GBYP-ICCAT 3ª Fase realizadas en el Golfo de León y Estrecho de Gibraltar durante 2011-12

In the Gulf of Lion Campaign 109 bluefin were tagged with conventional tags measuring between 74 cm and 108 cm fork length (LH). Five of these specimens had an electronic mark mini-patt placed on them. The campaign of the Strait of Gibraltar took place from 5/10/12 to 21/11/12 with 117 days at sea with a total of 1,477 bluefin marked of which 1,432 copies were marked, mainly with a double mainstream brand mark, 20 individuals with an electronic type pop-up (mini-pat) and 25 more fish with internal electronic tags. The tagged fish measured between 70 cm and 130 cm fork length (LH). Likewise, the biological samples which were scheduled were obtained for more than 40 samples of bluefin tuna of all sizes.Postprin

Campañas de marcado de atún rojo juvenil (Thunnus thynnus) juvenil coordinadas por el IEO, previstas en el Programa ICCAT-GBYP y realizadas en el Estrecho de Gibraltar durante Noviembre de 2011 y enero de 2012

This paper presents the results of conventional tagging surveys on juvenile bluefin tuna conducted in the Strait of Gibraltar during different periods of 2011 and 2012 with two vessels from the port of Algeciras that usually fish using pole and bait in that area. The campaigns were carried out within the framework of the Enhanced Research Program for Bluefin Tuna (Thunnus thynnus) (GBYP). In 36 days of activity, a total of 1389 bluefin tuna were tagged, weighing an average of approximately 15 kg, ranging between 7 and 40 kg. In 46% of the specimens, two different tags were placed, and the forecasts established in the Tagging Plan within the ICCAT-GBYP were achieved.GBYP-ICCATPostprin

Biology, incidence and host susceptibility of Pineus boerneri (Hemiptera : Adelgidae) in Colombian pine plantations

Adelgids (Hemiptera) in the genus Pineus have been reported as introduced insect pests causing serious losses to Pinus plantations worldwide. In 2008, Pineus boerneri was recorded for the first time in Colombia, with infestations noted on Pinus kesiya, P. tecunumanii, P. maximinoi and P. oocarpa. The lack of information on this insect in Colombia prompted investigations of its life cycle and infestation levels as well as host susceptibility of the main Pinus species planted in Colombia. In addition, the possibility of using a Ceraeochrysa species, an already established predator of adelgids in Colombia for biological control, was considered. Results showed that P. boerneri in Colombia has an anholocyclic life cycle comprised of four instars with a complete duration between 49 and 97 days. Infestations were higher in the middle and upper part of trees. Pinus kesiya and P. maximinoi had the highest levels of susceptibility in field as well as in greenhouse trials. A survey of naturally infested trees showed P. tecunumanii to be moderately susceptible while P. patula and P. oocarpa had low levels of susceptibility in a greenhouse trial but were not susceptible in the field. Investigations considering the impact of predation of Ceraeochrysa species showed a high predation rate of up to 140 P. boerneri consumed per day by a single Ceraeochrysa individual. Other predators of P. boerneri were recorded but were not sufficiently common to warrant detailed study.Smurfit Kappa Cartón de Colombia and the National Research Foundation (NRF) of South Africa.http://www.tandfonline.com/loi/tsfs20hb201

Posible influencia sobre el comportamiento migratorio del atún rojo (Thunnus thynnus) de las distintas estrategias de marcado electrónico utilizadas en las almadrabas y en jaulas de engorde

The Spanish Institute of Oceanography has been carrying out diverse research projects since 1997 on stock structure and on migration patterns of bluefin tuna (Thunnus thynnus), using the method of electronic tagging of adults. The results are provided to the stock assessment process of this species that the ICCAT Scientific Committee conducts periodically. The tagging is carried out in traps and fattening cages, observing marked differences in the movements of tunas that were tagged in the water from those that were brought on board for tagging. In the latter case, differences were also observed in the behavior of tunas that were released outside the codend of the trap from those that were released together with the rest of the shoal that was in the trap. With regard to the tagging and release of tunas in the fattening cages, it was observed that the behavior after tagging is related to time the tunas spent in the farming installations. The conclusion was reached that this type of tagging affects the natural behavior of bluefin tuna in the first phase, after which they continue with their normal biological cycle and their return to the natural habitat.En prens

El atún blanco (Thunnus alalunga) del Mediterráneo occidental

The situation of the Spanish fishery of albacore (Thunnus alalunga) in the western Mediterranean during the last years is presented. Catch data, fishing effort, CPUEs and size distributions are presented by gear and spatial-time strata. The mean annual catch of albacore in the last ten years reaches 310 MT, which makes a temporary alternative fishing method to the longline fisheries of swordfish. The finding of spawning areas around the Balearic Islands and the information from CPUE analyses by strata, in the future, could contribute, from a qualitative point of view, to important biological information of the species in the western Mediterranean.Le présent document fait état de la situation de la pêcherie espagnole de germon (Thunnus alalunga) dans l’ouest de la Méditerranée au cours de ces dernières années. Les données de capture, l’effort de pêche, les CPUE et les distributions de tailles sont présentés par engin et par strate spatio-temporelle. La capture annuelle moyenne du germon ces dix dernières années a atteint 310 t, ce qui offre aux pêcheries palangrières d’espadon une alternative temporaire. L’existence de zones de frai autour des îles Baléares et l’information que fourniront les futures analyses de CPUE par strate spatio-temporelle et par engin de pêche pourraient apporter, d’un point de vue qualitatif, d’importantes informations biologiques sur l’espèce dans l’ouest de la Méditerranée.Se expone la situación de la pesquería española del atún blanco (Thunnus alalunga) durante los últimos años en el Mediterráneo Occidental. Se presentan datos de captura, esfuerzo, CPUEs y distribuciones de tallas por arte y estrato espacio-temporal. La captura media anual de atún blanco para los últimos diez años alcanza las 310 Tm., lo que supone una alternativa temporal a la pesca de pez espada con palangre de superficie. La existencia de áreas de reproducción en torno al archipiélago Balear, unido a la información aportada por futuros análisis de CPUE por estrato espacio-temporal y arte de pesca, podrían aportar, desde el punto de vista cualitativo, importante información biológica sobre la especie en el Mediterráneo Occidental

Resultados de la encomienda de la SGP al IEO para el estudio del atún rojo (Thunnus thynnus) del stock del Atlántico este (que incluye el Mediterráneo) considerando las almadrabas españolas como observatorios científicos

During the years of 2010-2012 was a research project bluefin tuna traps using Spanish as scientific laboratories. The main objective was to keep the knowledge of the tendency of the index of abundance of bluefin tuna caught with these nets, and it is the most significant index used in the stock assessment process East Atlantic, including the Mediterranean. Likewise studies were developed bluefin tuna biological parameters such as growth, feeding, reproduction, stock structure and migration patterns, the results provide an important advance in the understanding of the biology and behavior of this species.Versión del edito

Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection

Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components. Dendritic cells (DCs) play a key role in the defense against viral infections, for instance plasmacytoid DCs (pDCs), have the capacity to produce vast amounts of interferon-alpha (IFN-α). In COVID-19 there is a deficit in DC numbers and IFN-α production, which has been associated with disease severity. In this work, we described that in addition to the DC deficiency, several DC activation and homing markers were altered in acute COVID-19 patients, which were associated with multiple inflammatory markers. Remarkably, previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+ myeloid DCs and pDCs seven months after SARS-CoV-2 infection. Moreover, the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients, while no restoration of integrin β7 and indoleamine 2,3-dyoxigenase (IDO) levels were observed. These findings contribute to a better understanding of the immunological sequelae of COVID-19