11 documents found, page 1 of 2
Applicability of the current stock assessment models to the priority azorean fi...
Leal, Wendell Medeiros; Pinho, Mário Rui; Santos, RégisThis work presents a guidance to conduct stock assessment based on ICES Maximum Sustainable Yield framework. A cross-analysis based on the models’ assumptions and inputs and data available for 22 Azorean priority stocks was performed to assess the applicability of each model to each stock. Information currently available for coastal and some demersal/deep-water stocks limits the use of most models validated by ...
Expert knowledge-based co-development of scenarios for maritime spatial plannin...
Calado, Helena; Pegorelli, Camila; Vergílio, Marta H. S.; Hipólito, Cláudia; Campos, Aldino; Moniz, Fabiana; Costa, Ana Cristina; Silva, C. Pereira daScenarios constitute narratives or storylines that reasonably describe how the future is likely to unfold. The usefulness of scenarios in Maritime Spatial Planning (MSP) is now recognised within policy and research, with many institutions urging the development of likely trajectories in the future state of the marine environment and space. However, little progress exists in the actual development and applicatio...
Synopsis of biological, ecological and fisheries-related information on priorit...
Santos, Régis; Leal, Wendell Medeiros; Pinho, Mário RuiStudies on life history and stock structure of marine species have evolved in the Azores region during the last 40 years. This information is essential to feed fishery stock assessment models that fit available data to determine current stock status and provide advice on the optimum (sustainable) exploitation. However, most of these data are only available in a fragmented manner in several scientific papers, bo...
Stock assessment prioritization in the Azores : procedures, current challenges ...
Santos, Régis; Leal, Wendell Medeiros; Pinho, Mário RuiTo implement the Marine Strategy Framework Directive (MSFD) of the European Union (EU) in order to achieve the Sustainable Development Goals (SDGs) of the United Nations (UN) regarding the biological sustainability of marine fisheries, it is fundamental to apply a framework for prioritizing stocks. This process helps the regional managers to make the best use of data and resources for management. The present st...
Estimates of biomass and potential yield for the deep-water red crab, Chaceon a...
Pinho, Mário Rui; Santos, Régis; Melo, Octávio; Isidro, Eduardo; Novoa-Pabon, Ana Maria; Leal, Wendell Medeiros; Gonçalves, João M.Available information on the deep-water red crab, Chaceon affinis and the toothed rock crab, Cancer bellianus, resulting from exploratory research surveys and commercial fishing experiments carried out in the Azorean Exclusive Economic Zone (EEZ), were summarized to estimate the biomass and potential yield (Maximum Sustainable Yield – MSY) for both fishery resources. The fishery potential was estimated through ...
The effect of rapid decompression on barotrauma and survival rate in swallowtai...
Silva, Luís; Rosa, Rui Guedes; Campino, Nelson; Martins, Inês; Pinho, Mário Rui; Correia, João; Morato, TelmoSwallowtail seaperch, Anthias anthias, is a popular fish in the public aquaria industry worldwide, but is subject to barotrauma and high mortality rates if an appropriate decompression profile is not used. Here, we analyze behavioral response to pressure reductions in swallowtail to define protocols for mitigating surfacing mortality. Four different pressure reduction rates were tested (15%, 25%, 35%, and 45%) ...
Considerations on the biology of Plesionika narval (Fabricius, 1787) in the Nor...
Sousa, Ricardo; Henriques, Paulo; Biscoito, Manuel; Pinto, Ana Rita; Delgado, João; Dellinger, Thomas; Pinho, Mário RuiLife history traits of Plesionika narval were studied in the Northeastern Atlantic, Madeira archipelago including growth, age, sexual maturity, recruitment pattern and mortality. A total of 28,262 specimens were sampled over a period of 8 years comprising two time series from 1991 to 1995 and 2004 to 2008. The relative growth pattern showed a negative allometric nature of growth for combined sexes, males, femal...
Annotated list of fishes caught by the R/V ARQUIPÉLAGO off the Cape Verde archi...
Menezes, Gui M.; Tariche, Oksana; Pinho, Mário Rui; Duarte, Pedro N.; Fernandes, Ana; Aboim, Maria A.A prospective survey was carried out in October - November of 2000, in the Cape Verde archipelago, by the R/V ARQUIPÉLAGO. The main objective was to determine the species composition and relative abundance of the demersal fish resources living in the waters of the Cape Verde archipelago. A list of fishes caught with bottom longline during the survey is presented in this document, along with information about th...
Trends in the fishery and catch patterns of kitefin shark, Dalatias licha (Bona...
Machado, Pedro B.; Pinho, Mário Rui; Duarte, Pedro N.During the last two decades the Azorean fishing community has profited from the kitefin shark fishery which in the year 2000 generated an estimated revenue of approximately €12,500. This resource has been targeted mainly by small fishing vessels operating in the Azores archipelago since the late 1970s. The vulnerability of this species to exploitation has raised the concern about the impact of the fishery on th...
Staining techniques for ageing tope shark, Galeorhinus galeus (Linnaeus, 1758),...
Duarte, Pedro N.; Silva, Alexandre A.; Menezes, Gui M.; Pinho, Mário RuiA vertebrae sample of tope shark, Galeorhinus galeus (Linnaeus, 1758), stratified by sizeclasses,was used to test between different staining techniques of enhancing vertebral growth ring visibility. Four techniques were tested: alizarin red, silver nitrate and cobalt nitrate staining, and the “deep-coned vertebrae” technique. The latter was discarded due to its unsuitability for tope shark vertebrae. The cobalt...