| Enregistrements |
| Auteur |
Lacoste, E.; McKindsey, C.W.; Archambault, P. |
| Titre |
Biodiversity–Ecosystem Functioning (BEF) approach to further understanding aquaculture–environment interactions with application to bivalve culture and benthic ecosystems |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Reviews in Aquaculture |
| Volume |
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Numéro |
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Pages |
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| Mots-Clés |
aquaculture–environment interactions; benthic system; biodiversity; ecosystem functioning; shellfish |
| Résumé |
Coastal benthic ecosystems may be impacted by numerous human activities, including aquaculture, which continues to expand rapidly. Indeed, today aquaculture worldwide provides more biomass for human consumption than do wild fisheries. This rapid development raises questions about the interactions the practice has with the surrounding environment. In order to design strategies of sustainable ecosystem exploitation and marine spatial planning, a better understanding of coastal ecosystem functioning is needed so that tools to quantify impacts of human activities, including aquaculture, may be developed. To achieve this goal, some possible directions proposed are integrated studies leading to new concepts, model development based on these concepts and comparisons of various ecosystems on a global scale. This review draws on existing literature to (i) briefly summarize the major ecological interactions between off-bottom shellfish aquaculture and the environment, (ii) introduce research on the influence of benthic diversity on ecosystem functioning (BEF relationships) and (iii) propose a holistic approach to conduct aquaculture–environment studies using a BEF approach, highlighting the need for integrated studies that could offer insights and perspectives to guide future research efforts and improve the environmental management of aquaculture. |
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en |
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| ISSN |
1753-5131 |
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WOS:000514024900001 |
Approuvé |
pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection  |
2720 |
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| Auteur |
Tribot, A.-S.; Deter, J.; Claverie, T.; Guillhaumon, F.; Villeger, S.; Mouquet, N. |
| Titre |
Species diversity and composition drive the aesthetic value of coral reef fish assemblages |
Type |
Article scientifique |
| Année |
2019 |
Publication |
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Revue Abrégée |
Biol. Lett. |
| Volume |
15 |
Numéro |
11 |
Pages |
20190703 |
| Mots-Clés |
aesthetics; biodiversity; conservation; coral reef fish; ecosystem services; functional diversity; human interest; landscape; nature's contribution to people; quality |
| Résumé |
Cultural and recreational values of biodiversity are considered as important dimensions of nature's contribution to people. Among these values, the aesthetics can be of major importance as the appreciation of beauty is one of the simplest forms of human emotional response. Using an online survey, we disentangled the effects of different facets of biodiversity on aesthetic preferences of coral reef fish assemblages that are among the most emblematic assemblages on Earth. While we found a positive saturating effect of species' richness on human preference, we found a net negative effect of species abundance, no effect of species functional diversity and contrasting effects of species composition depending on species' attractiveness. Our results suggest that the biodiversity-human interest relationship is more complex than has been previously stated. By integrating several scales of organization, our study is a step forward in better evaluating the aesthetic value of biodiversity. |
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English |
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| ISSN |
1744-9561 |
ISBN |
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| Notes |
WOS:000504840300013 |
Approuvé |
pas de |
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MARBEC @ isabelle.vidal-ayouba @ |
collection |
2713 |
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| Auteur |
Fernandez-Arcaya, U.; Bitetto, I.; Esteban, A.; Teresa Farriols, M.; Garcia-Ruiz, C.; Gil de Sola, L.; Guijarro, B.; Jadaud, A.; Kavadas, S.; Lembo, G.; Milisenda, G.; Maina, I.; Petovic, S.; Sion, L.; Vaz, S.; Massuti, E. |
| Titre |
Large-scale distribution of a deep-sea megafauna community along Mediterranean trawlable grounds |
Type |
Article scientifique |
| Année |
2019 |
Publication |
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Revue Abrégée |
Sci. Mar. |
| Volume |
83 |
Numéro |
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Pages |
175-187 |
| Mots-Clés |
aristeus-antennatus risso; biodiversity; biomass; community; continental slope; decapod crustaceans; deep sea; demersal fish diversity; distribution pattern; fishing impact; impacts; megafauna; red shrimp; relative roles; size; spatial-distribution; western |
| Résumé |
The large-scale distribution pattern of megafauna communities along the Mediterranean middle slope was explored. The study was conducted between 500 and 800 m depth where deep-water fishery occurs. Although community studies carried out deeper than 500 m are partly available for some geographic areas, few large-scale comparative studies have been carried out. Within the framework of the MEDITS survey programme, we compared the megafauna community structure in ten geographical sub-areas (GSAs) along the Mediterranean coasts. Additionally, the spatial distribution of fishing was analysed using vessel monitoring by satellite information. Overall, the community showed a significant difference between sub-areas, with a decreasing eastward pattern in abundance and biomass. Longitude was the main factor explaining variation among sub-areas (by generalized additive models). However, we found a region which did not follow the general pattern. GSA 6 (northern Spain) showed significantly lower abundance and a different composition structure to the adjacent areas. The decrease in community descriptors (i.e. abundance and biomass) in this area is probably a symptom of population changes induced by intense fishery exploitation. Overall, a combination of environmental variables and human-induced impacts appears to influence the bentho-pelagic communities along the slope areas of the Mediterranean. |
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English |
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Edition |
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| ISSN |
0214-8358 |
ISBN |
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Médium |
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Expédition |
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Conférence |
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| Notes |
WOS:000504829900014 |
Approuvé |
pas de |
| Numéro d'Appel |
MARBEC @ isabelle.vidal-ayouba @ |
collection |
2699 |
| Lien permanent pour cet enregistrement |
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| Auteur |
Marsac, F.; Galletti, F.; Ternon, J.-F.; Romanov, E.V.; Demarcq, H.; Corbari, L.; Bouchet, P.; Roest, W.R.; Jorry, S.J.; Olu, K.; Loncke, L.; Roberts, M.J.; Ménard, F. |
| Titre |
Seamounts, plateaus and governance issues in the southwestern Indian Ocean, with emphasis on fisheries management and marine conservation, using the Walters Shoal as a case study for implementing a protection framework |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Deep Sea Research Part II: Topical Studies in Oceanography |
| Volume |
176 |
Numéro |
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Pages |
104715 |
| Mots-Clés |
Amended Nairobi Convention; Areas Beyond National Jurisdiction; Benthic biodiversity; Deep-sea fisheries; Deep-sea mining; International Law of the Sea; Marine protected areas; Saya de Malha Bank; South Indian Ocean Fisheries Agreement; Vulnerable Marine Ecosystems |
| Résumé |
There is a growing interest in the management of seamounts of the Southwestern Indian Ocean (SWIO) both in waters under national jurisdictions and in the Areas Beyond National Jurisdiction (ABNJ). New scientific knowledge has been gathered through various oceanographic cruises during the past decade, and new agreements are under consideration globally to promote conservation and sustainable use of the biodiversity in the ABNJ, where the deep sea ecosystems associated with seamounts are a growing matter of concern. SWIO seamounts have attracted the interests of fishers since the 1960s, and contracts for mining exploration have been granted recently. Seamounts are known to shelter rich, fragile and poorly resilient ecosystems whose important ecological functions are threatened by various anthropogenic pressures. Whereas many seamounts and shoals are located in national waters, many others fall in the ABNJ, with no current legal status per se. To ensure conservation of their habitats and biodiversity, it is essential that protection measures are instigated under an internationally recognized legal and institutional framework. In this paper, we review the current state of such a framework relevant to seamounts, with emphasis on fisheries and conservation in the SWIO. An emblematic seamount, the Walters Shoal, is selected as a case study to discuss how it could become a fully-protected space in the ABNJ. As a large part of the SWIO is under the mandate of the Nairobi Convention (as a Regional Sea under the auspices of UNEP), guidelines are proposed to encourage dedicated seamount governance within the framework of this Convention. |
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en |
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| ISSN |
0967-0645 |
ISBN |
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| Notes |
WOS:000556810400007 |
Approuvé |
pas de |
| Numéro d'Appel |
MARBEC @ isabelle.vidal-ayouba @ |
collection |
2689 |
| Lien permanent pour cet enregistrement |
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| Auteur |
Hill, S.L.; Hinke, J.; Bertrand, S.; Fritz, L.; Furness, R.W.; Ianelli, J.N.; Murphy, M.; Oliveros‐Ramos, R.; Pichegru, L.; Sharp, R.; Stillman, R.A.; Wright, P.J.; Ratcliffe, N. |
| Titre |
Reference points for predators will progress ecosystem-based management of fisheries |
Type |
Article scientifique |
| Année |
2020 |
Publication |
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Revue Abrégée |
Fish and Fisheries |
| Volume |
21 |
Numéro |
2 |
Pages |
368-378 |
| Mots-Clés |
adaptive management; Aichi Biodiversity Targets; ecosystem interactions; indirect impacts; management strategy; precautionary approach |
| Résumé |
Ecosystem-based management of fisheries aims to allow sustainable use of fished stocks while keeping impacts upon ecosystems within safe ecological limits. Both the FAO Code of Conduct for Responsible Fisheries and the Aichi Biodiversity Targets promote these aims. We evaluate implementation of ecosystem-based management in six case-study fisheries in which potential indirect impacts upon bird or mammal predators of fished stocks are well publicized and well studied. In particular, we consider the components needed to enable management strategies to respond to information from predator monitoring. Although such information is available in all case-studies, only one has a reference point defining safe ecological limits for predators and none has a method to adjust fishing activities in response to estimates of the state of the predator population. Reference points for predators have been developed outside the fisheries management context, but adoption by fisheries managers is hindered a lack of clarity about management objectives and uncertainty about how fishing affects predator dynamics. This also hinders the development of adjustment methods because these generally require information on the state of ecosystem variables relative to reference points. Nonetheless, most of the case-studies include precautionary measures to limit impacts on predators. These measures are not used tactically and therefore risk excessive restrictions on sustainable use. Adoption of predator reference points to inform tactical adjustment of precautionary measures would be an appropriate next step towards ecosystem-based management. |
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Éditeur |
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en |
Langue du Résumé |
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Titre Original |
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Titre de collection |
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Titre de collection Abrégé |
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Numéro de collection |
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Edition |
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| ISSN |
1467-2979 |
ISBN |
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Médium |
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Expédition |
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Conférence |
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| Notes |
WOS:000505754400001 |
Approuvé |
pas de |
| Numéro d'Appel |
MARBEC @ isabelle.vidal-ayouba @ |
collection |
2684 |
| Lien permanent pour cet enregistrement |
