Consulta: creatorFacets:"Cranford, Peter J."
Registros recuperados: 4
Data/hora: 05/06/2024 14:13:40

Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review
Provedor de dados: 5
Autores: Callier, Myriam; Byron, Carrie J.; Bengtson, David A.; Cranford, Peter J.; Cross, Stephen F.; Focken, Ulfert; Jansen, Henrice M.; Kamermans, Pauline; Kiessling, Anders; Landry, Thomas; O'Beirn, Francis; Petersson, Erik; Rheault, Robert B.; Strand, Oivind; Sundell, Kristina; Svasand, Terje; Wikfors, Gary H.; Mckindsey, Christopher W.
Knowledge of aquaculture–environment interactions is essential for the development of a sustainable aquaculture industry and efficient marine spatial planning. The effects of fish and shellfish farming on sessile wild populations, particularly infauna, have been studied intensively. Mobile fauna, including crustaceans, fish, birds and marine mammals, also interact with aquaculture operations, but the interactions are more complex and these animals may be attracted to (attraction) or show an aversion to (repulsion) farm operations with various degrees of effects. This review outlines the main mechanisms and effects of attraction and repulsion of wild animals to/from marine finfish cage and bivalve aquaculture, with a focus on effects on fisheries-related...
Tipo: Text
Palavras-chave: Aquaculture; Artificial reefs; Attraction; Farm waste; Fish aggregating devices; Repulsion; Wild population.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00406/51737/52435.pdf

Response of Mytilus edulis to enhanced phytoplankton availability by controlled upwelling in an oligotrophic fjord
Provedor de dados: 5
Autores: Strohmeier, Tore; Strand, Oivind; Alunno-bruscia, Marianne; Duinker, Arne; Rosland, Rune; Aure, Jan; Erga, Svein R.; Naustvoll, Lars J.; Jansen, Henrice M.; Cranford, Peter J.
The controlled upwelling of nutrient-rich deep water in oligotrophic coastal regions has been proposed as a means of increasing phytoplankton and, subsequently, bivalve aquaculture production. This was tested as part of a large-scale upwelling experiment in an oligotrophic environment (Lysefjord, Norway). The mean chlorophyll a concentration in the upwelling area was consistently higher than at the control site (mean ± SD: 3.3 ± 1.9 and 1.5 ± 0.6 mg Chl a m-3, respectively) during the 4 mo of controlled upwelling. After 2 mo with upwelling, the dry flesh weight of 1 yr-old and 2 yr-old mussels was 95% and 24% higher, respectively, than that of the mussels at the control site. The 1 yr-old mussels at the upwelling site achieved up to 2.4-fold higher dry...
Tipo: Text
Palavras-chave: Bivalve aquaculture; Production carrying capacity; Physiology; Fjord ecosystems; Shell growth; Tissue growth.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00241/35200/33704.pdf

Variability in particle retention efficiency by the mussel Mytilus edulis
Provedor de dados: 5
Autores: Strohmeier, Tore; Strand, Oivind; Alunno-bruscia, Marianne; Duinker, Arne; Cranford, Peter J.
Seasonal variation in blue mussel, Mytilus edulis, retention efficiency (RE) responses to natural seston concentrations were investigated in the Lysefjord, Norway. The smallest particles shown to be effectively retained (100%) were approximately 7 μm and this was observed on only one occasion. The most common response was for RE to progressively increase from small to large particles with maximum RE at 30 to 35 μm (8 of 12 experiments). Temporal changes in the seston size distribution towards a dominance of smaller particles coincided with a decrease in the RE maxima to particles between 7 and 15 μm diameter. The RE of 1 μm and 4 μm diameter particles ranged between 14–64% and 12–86%, respectively, showing that small particles occasionally serve as a...
Tipo: Text
Palavras-chave: Bivalve feeding physiology; Retention efficiency; Clearance rate; Marine ecophysiology; Seston; Suspension feeding; Mytilus edulis.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00054/16509/14024.pdf

An ecosystem-based approach and management framework for the integrated evaluation of bivalve aquaculture impacts
Provedor de dados: 5
Autores: Cranford, Peter J.; Kamermans, Pauline; Krause, Gesche; Mazurie, Joseph; Buck, Bela H.; Dolmer, Per; Fraser, David; Van Nieuwenhove, Kris; O'Beirn, Francis X.; Sanchez-mata, Adoracion; Thorarinsdottir, Gudrun G.; Strand, Oivind.
An ecosystem-based approach to bivalve aquaculture management is a strategy for the integration of aquaculture within the wider ecosystem, including human aspects, in such a way that it promotes sustainable development, equity, and resilience of ecosystems. Given the linkage between social and ecological systems, marine regulators require an ecosystem-based decision framework that structures and integrates the relationships between these systems and facilitates communication of aquaculture-environment interactions and policy-related developments and decisions. The Drivers-Pressures-State Change-Impact-Response (DPSIR) management framework incorporates the connectivity between human and ecological issues and would permit available performance indicators to...
Tipo: Text
Palavras-chave: Bivalve aquaculture management; Ecosystem-based approach; DPSIR framework; Indicators; Thresholds; Benthic effects; Pelagic effects; Social-ecological systems.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00099/20997/18624.pdf