Resilience of<i>Zostera marina</i>habitats and response of the macroinvertebrate community to physical disturbance caused by clam harvesting

Barañano, Carlota; Fernández, Emilio; Méndez, Gonzalo; Troncoso, Jesús S.

doi:10.1080/17451000.2017.1307989

Cited by 9 publications

(2 citation statements)

References 39 publications

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“…Our results suggest that after commercial fisheries and aquaculture, shellfisheries alone represent around 15% of the activities interacting with seagrass ecosystems. Several authors have described negative effects of clam harvesting (and its associated trampling) on seagrass mostly by changes in the species population structure through the reduction of shoot density and total seagrass biomass (Cabaço et al, 2005;Dumbauld et al, 2009;Barañano et al, 2017;Garmendia et al, 2017;De los Santos et al, 2019;Ferris et al, 2019). Mechanical damages by bivalves harvesting (namely clams) and other fisheries were among the main causes of trade-off interaction in our analysis.…”

Section: Discussionmentioning

confidence: 76%

Trade-Offs and Synergies Between Seagrass Ecosystems and Fishing Activities: A Global Literature Review

et al. 2022

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Seagrass ecosystems support human well-being by delivering a wide range of ecosystem services. Particularly important is the significant role they play in food provisioning by supporting fisheries worldwide. Despite their socio-economic importance, it is only recently when they have been considered as important social-ecological systems worldwide. Research focused on the interactions between seagrasses and human activities have been understudied and never addressed from a global approach, even though this knowledge is essential to create relevant policy and management plans, and to promote governance systems, which consider fishers’ needs and rights. Thus, we carried out a global systematic review on trade-offs and/or synergies between seagrasses and fishing activities, aiming to analyse the current state of the art on these interactions, to identify potential gaps in knowledge, and to pinpoint key research priorities. We found a total of 94 publications assessing the relationship between seagrass ecosystems and fisheries, which have tripled between 2001-2021, being most of them empirical studies (90%) with ecological scope (a total of 68). Socioeconomic studies (3%) on the subject were identified as a knowledge gap. Most studies (72%) were carried out in northern hemisphere countries, with an underrepresentation of studies in tropical regions. The studies reporting trade-off (a total of 69) interactions almost tripled those reporting synergies (a total of 31) between seagrass ecosystems and fisheries. Mechanical damage to seagrasses by fishing gear is the main source (51%) of trade-offs, followed by overfishing (28%), while aquaculture cages’ emissions (20%) are also a relevant source of trade-offs. Seafood market demand and conflicts of use were the main drivers for trade-offs. When assessing synergistic interactions, most studies (27 out of 31) reported a larger abundance or recruitment of species with commercial interest mediated by seagrass habitat provision. Globally, seagrass ecosystems are mainly affected by industrial and small-scale fisheries, including aquaculture and shellfisheries, and to a lesser extent, by recreational fisheries. Fisheries management system is not specified in more than half (53) of the reviewed publications, which represents a key knowledge gap with implications for sustainable management. Nevertheless, we document a fast increase in studies covering fishery-seagrass interactions, which, if accompanied by better reporting of the nature of the interactions and the socio-economic context of the fishery, would help improve the sustainable management of both systems.

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Section: Discussionmentioning

confidence: 76%

Trade-Offs and Synergies Between Seagrass Ecosystems and Fishing Activities: A Global Literature Review

et al. 2022

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“…No caso de Galicia, un traballo recente publicado por García-redondo et al (2019) indica que o 80% da superficie cuberta por Zostera marina está afectada polas presións ambientais asociadas á actividade marisqueira. o marisqueo causa perturbacións físicas sobre as pradarías desta especie, podendo chegar a reducir a súa biomasa de xeito moi significativo, aínda que a capacidade de recuperación durante o período de veda da extracción de moluscos pode ser moi elevada (Barañano, Fernández, méndez e Troncoso, 2017). Tense demostrado tamén que a actividade marisqueira reduce nun 50%, aproximadamente, a capacidade de capturar carbono por parte das pradarías mariñas (Barañano, Fernández e méndez, 2018).…”

Section: Marco Científicounclassified

Investigación de Ecoloxía Escolar nunha pradaría de Zostera nolteii

Luna

Suárez

Carrión

et al. 2019

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Analízase a situación da pradaría de Zostera nolteii do banco de marisqueo de bivalvos de Testal (Noia), mediante a investigación desenvolvida por escolares, coa dirección de científicos. A finalidade do programa de Ciencia Escolar de Climántica é contribuír ao coñecemento científico mediante a obtención de series de datos útiles para a realización de investigacións de interese a escala local. Neste caso, analizouse a relación existente entre as abundancias de bivalvos de interese comercial e a presenza da fanerógama Zostera nolteii co obxectivo de capacitar aos alumnos para facer ciencia sobre os impactos humanos sobre os servizos ecosistémicos máis relevantes da súa contorna. Con esta colaboración entre Ciencia e Escola, conseguiuse aumentar a competencia científica do alumnado, ao tempo que se realizaron transferencias bidireccionais ciencia – escola no eido da investigación e educación sobre o cambio global.A actividade que se describe neste traballo ten como obxectivo xeral coñecer a relación existente entre a diversidade de organismos animais do banco do Testal e a presenza e distribución espacial da fanerógama Zostera nolteii, para así entender o seu papel como xeradora de estructura no ecosistema intermareal de sustrato brando.

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Zostera marina meadows in the northwestern Spain: distribution, characteristics and anthropogenic pressures

2019

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Resilience ofZostera marinahabitats and response of the macroinvertebrate community to physical disturbance caused by clam harvesting

Cited by 9 publications

References 39 publications

Trade-Offs and Synergies Between Seagrass Ecosystems and Fishing Activities: A Global Literature Review

Trade-Offs and Synergies Between Seagrass Ecosystems and Fishing Activities: A Global Literature Review

Investigación de Ecoloxía Escolar nunha pradaría de Zostera nolteii

Zostera marina meadows in the northwestern Spain: distribution, characteristics and anthropogenic pressures

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