Angeles Longa

Angeles Longa
Regulatory Council of the Galician Mussel

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18
Publications
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352
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Publications

Publications (18)
Article
Full-text available
Marine aquaculture takes advantage of marine ecosystem services to produce goods that can be relevant from a food security point of view. However, this activity is subject to multiple stressors as the ones exerted by global climate change. Local stressed conditions due to environmental drivers may be exacerbated by the COVID19 pandemic crisis. In t...
Article
Full-text available
Local environmental conditions can have strong effects on ecophysiological responses in bivalve molluscs. Molluscs must allocate the energetic resources acquired in their habitats to survival and fitness. In this study, we investigated the spatial and temporal patterns of response in relation to byssus strength and soft tissue weight during the max...
Article
Full-text available
Estuarine environments are highly heterogeneous habitats where numerous organisms interact with each other. Aquaculture systems encompass such interactions, and the eventual yields depend on how the cultivated species respond to the environmental heterogeneity. Marine mussels are calcifying organisms that rely on calcium carbonate shell and byssus...
Article
Marine mussel aggregations act as a substratum and refuge for many fouling species. Mussel cultivation in Galicia, Spain, is carried out on hanging ropes in subtidal systems. The fauna associated with this cultivation includes a large number of invertebrates that compete for space or food with the mussels, or use their clusters as a refuge from pre...
Article
Full-text available
We describe the valve-opening behavior of raft-cultivated mussels (Mytilus galloprovincialis) in the Ría de Arousa (Arousa estuary), Spain. Eight rope-grown mussels [mean ± standard error (SEM), shell length 61.6 ± 2.1 mm] were connected to a non-invasive valvometry apparatus that monitored (one measurement min−1) the magnitude of valve openness sy...
Article
The effectiveness of depuration for the removal of hepatitis A virus (HAV), norovirus (NoV) genogroups I (GI) and II (GII), and F+RNA bacteriophage (F+RNA) was evaluated for pullet carpet shell clams (Venerupis pullastra) and Mediterranean mussels (Mytilus galloprovincialis). The objective was to compare the behaviour of the different pathogens und...
Article
The efficacy and kinetic of depuration of hepatitis A virus (HAV) were evaluated under experimental conditions with Mediterranean mussels (Mytilus galloprovincialis) subjected previously to bioaccumulation processes. Seven independent trials (70kg of mussels each) were performed in a closed experimental system using two different water temperatures...
Chapter
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This study evaluates and compares the effectiveness of depuration in clams and mussels subjected to bioaccumulation with murine norovirus (MNV-1), as a surrogate for human norovirus. Ten experiments with artificially contaminated shellfish were performed with clams and mussels (five with each species) using 102 pfu of MNV-1/ml seawater. After 24 h...
Article
Full-text available
Abstract Mussels are the most important bivalves in both European aquaculture and market. Together with mussels produced in EU, the European market also allows the entrance of several mytilid species from up to 16 non-EU countries. Therefore, traceability methodologies are needed for the protection of consumers’ rights and for reinforce labeling re...
Article
Superoxide dismutases (SOD; EC 1.15.1.1) in chestnut (Castanea sativa Mill., cv. 431) leaves were characterized by native polyacrylamide gel electrophoresis. The three molecular forms of SOD were distinguished from each other by their different sensitivity to cyanide and H2O2 Three CuZn-containing SODs were detected (CuZn-SOD I, II. and III), and a...
Article
The prevalence of parasite Bonamia ostreae in the populations of flat oyster has been studied both in natural beds and on rafts and on intertidal beds through the coast of Galicia between 1992 to 2000. The effects of different factors on incidence of the parasitism including system of culture used, origin of the seed, zone and time of culture are a...
Article
Full-text available
Only about a dozen species of animals are known to achieve maximum ages (Amax) exceeding 100 yrs, including the freshwater pearl shell (Margaritifera margaritifera). This species has a life-span of between 100–200 years depending on latitude and environmental conditions. The difference in Amax is 3–7 times when southern populations, with Amax of 28...
Article
Trial culture of the Japanese oyster (Crassostrea gigas) was attempted in Galicia, as a possible alternative to the flat oyster (Ostrea edulis) in those areas affected by Bonamia ostreae. The population of C. gigas was obtained from Galicia hatchery and placed in the estuaries of Ortigueira, Arousa and Vigo, areas where bonamiasis is present. The d...
Article
In this study we report on the prevalence of Bonamia ostreae in stocks of flat oyster (Ostrea edulis L.), from different origins (natural settlement, hatchery, Italy and England), cultured in several areas of the Galician coast (estuaries of Vivero, Ortigueira, Camariñas, Noya, Arosa and Vigo, and inlets of S. Ciprián and Anllóns) during 1994. We f...
Article
Full-text available
The isoenzymatic pattern of Superoxide dismutase (SOD; EC 1.15.1.1) was studied in the symbiosis of Glomus mosseae (Nicol. and Gerd.) Gerd. and Trappe-Trifolium prarense L A Cu.Zn-SOD (M, 40500) was found in spores of G. mosseae. while one Mn-SOD (Mn-SOD I) and two Cu.Zn-SODs (Cu.Zn-SOD 1 and Cu.Zn-SOD II) were present in both roots and leaves of T...

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