Results 11 to 20 of about 375,913 (253)
Epidemiology of Salmonid Rickettsial Septicemia (SRS) in Farmed Salmon: The Role of Sea Lice Infestations in Mortality Risk. [PDF]
ABSTRACT Piscirickettsia salmonis, the causal agent of salmonid rickettsial septicemia (SRS), is the main pathogen affecting farmed salmonids in Chile. Outbreaks of SRS lead to substantial economic losses for producers. Many determinants related to SRS outcomes are still poorly understood.
Diethelm-Varela B +7 more
europepmc +2 more sources
Is hypoxia a stressor to American bullfrog tadpoles? [PDF]
The aim of this study was to evaluate alterations to the physiological profile of cortisol in pro-metamorphose phase tadpoles of Lithobates catesbeianus exposed to hypoxia stressor in a capture experiment and in a crowding experiment.
Patricia C. Teixeira +5 more
doaj +4 more sources
Comparative growth and performance of two generations of tilapia (Oreochromis niloticus)
The growth of generations of the Genomar Supreme Tilapia (GST) strain, specifically G20 and G25, was evaluated. Tilapias 8 g were reared in a recirculating aquaculture system with 0.25 m³ tanks, 80 fish m-³, with four replicates.
Vander Bruno dos Santos +5 more
doaj +1 more source
Analisa-se as memórias de pescadores artesanais da comunidade de Quatipurú Mirim (Tracuateua/PA) sobre a inserção de trabalhadores na pesca. Opera-se com a História Oral como metodologia na produção das fontes. Os depoimentos articularam-se à memória coletiva para gerar sentido sobre o trabalho infanto-juvenil, a primeira pesca (a de zangaria), o papel
Alan Crhistian ALVÃO Quadros +1 more
openaire +1 more source
A qualidade da água de 30 pesque-pague da região metropolitana de São Paulo foi avaliada através de variáveis abióticas nos períodos seco e chuvoso em setembro de 2001 e fevereiro de 2002.
Cacilda Thais Janson Mercante +4 more
doaj +1 more source
This work examines the economic advantages of probiotic use in the diet of Nile tilapia broodstock during the reproductive period. For this purpose, Bacillus subtilis was applied as a feed additive.
Danielle de Carla Dias +7 more
doaj +1 more source
Analytical stock assessment of sardine (Sardina pilchardus, Walb.) in the Adriatic Sea from 1975 to 1999 was performed taking into account the occurrence of discarding at sea of sardine caught by the Italian fleet.
Alberto Santojanni +8 more
doaj +1 more source
A Pesca enquanto Atividade Humana: Pesca Artesanal e Sustentabilidade [PDF]
This monographic work is a about the human relation with the marine fish resources, namely the evolution of the Portuguese and Brazilian relation with these ...
Santos, Marco Pais Neves dos +7 more
openaire +2 more sources
Understanding the local livelihood system in reosurce management: the pelagic longline fishery in Gouyaye, Grenada [PDF]
There is a need to include social objectives in fisheries management, and this paper focuses on one set of social considerations, those regarding livelihood.
Berkes, F., Brierley, J., Grant, S.
core +4 more sources
Investigación para la Comisión PECH: Prohibición de los descartes, obligación de desembarque y RMS en el Mediterráneo Occidental: el caso de España [PDF]
Las pesquerías demersales del mar Mediterráneo sufren una importante sobrepesca, pero la obligación de desembarque no contribuirá a lograr el RMS, porque no reducirá la mortalidad por pesca.
Bellido, José María +7 more
core +1 more source

