Rapid phytoplankton response to wind forcing influences productivity in upwelling bays

Broullón, Esperanza; Franks, Peter J. S.; Fernández-Castro, B.; Gilcoto, Miguel; Fuentes-Lema, A.; Pérez‐Lorenzo, María; Fernández, Emilio; Mouriño‐Carballido, Beatriz

doi:10.1002/lol2.10309

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…Inside the PNMTIAG recreational fishing is prohibited and different uses are regulated (Xunta de Galicia, Conselleira de Medio Ambiente, Territorio y Vivienda, 27/12/2018). Waters surrounding the Cíes islands are subject to upwelling events, rendering them particularly productive and therefore valued as important fishing grounds by the small-scale local fishers (Arístegui et al, 2004;Broullón et al, 2023).…”

Section: Study Arraymentioning

confidence: 99%

Drivers of the spatial behaviour of the threatened thornback skate (Raja clavata)

Papadopoulo

Villegas‐Ríos

Mucientes

et al. 2023

Aquat. Living Resour.

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Fish movements are fundamental to their ecology and survival. Understanding the causes and consequences of the spatial behaviour of fish is of high relevance as it provides critical knowledge for conservation purposes. Skate (Rajidae) populations face an unprecedented global decline due to overfishing. In this study, we used acoustic telemetry to track the movements of nine individuals of the near threatened thornback skate (Raja clavata) around the Cíes Islands, a small marine protected area in the northwest of the Iberian Peninsula. Our results demonstrate the significant impacts of biotic and abiotic drivers on the spatial behaviour of R. clavata. Overall residency inside the study array was low (0.073), differed between sexes (higher for females) and over the course of the year (peaking in summer). The analysis of the direction of the excursions performed by R. clavata individuals revealed high consistency in the exit and entry areas and a strong connectivity with inshore waters connecting with the Ría de Vigo, as compared with offshore waters connecting with the open ocean. Finally, the activity space of R. clavata also varied over the time of the year with a peak in summer. This study provides an important baseline information for understanding the spatial behaviour of R. clavata that can serve as a starting point for planning future conservation actions or studies.

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Section: Study Arraymentioning

confidence: 99%

Drivers of the spatial behaviour of the threatened thornback skate (Raja clavata)

Papadopoulo

Villegas‐Ríos

Mucientes

et al. 2023

Aquat. Living Resour.

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Contrasting resistance of prokaryotic plankton biomass and community composition to experimental nutrient inputs in a coastal upwelling system (NW Spain)

Gutiérrez-Barral,

Fernández,

Hernández-Ruiz

et al. 2023

Hydrobiologia

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Evidence of likely foraging by pygmy blue whales in the Timor Trough during the late austral winter and early austral spring

Burton¹,

Bouchet²,

Gill³

et al. 2023

Mar. Ecol. Prog. Ser.

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Understanding the behavioural context of wildlife movement patterns is imperative to the conservation of migratory species like cetaceans. The traditional model of baleen whale migration entails uninterrupted journeys performed throughout extended periods of fasting, during which individuals sustain the enormous costs of travelling from the poles to the tropics only from energy reserves acquired prior to departure. However, this ‘feast and famine’ paradigm is being challenged by increasing observations of supplemental feeding events along whale migratory routes. In this context, identifying the location of migratory stopovers is key to managing cetacean populations, particularly in data-poor ecosystems subject to changing ocean conditions. We report on likely foraging activity by migrant pygmy blue whales Balaenoptera musculus brevicauda in the Timor Trough (ca. 9.5° S, 126° E), a deep-water habitat south of the species’ presumed breeding grounds. Using photo-identification and generalised additive modelling, we analysed visual sightings collected aboard seismic vessels operating off Timor-Leste in 2007-2008 and demonstrate that (1) whales engage in surface behaviours suggestive of active feeding, (2) some individuals remain within the region for more than 1 d, and (3) whale presence is significantly associated with predictably high chlorophyll a concentrations. Despite previous efforts to examine pygmy blue whale movements at low latitudes using long-term satellite telemetry, knowledge of the species’ behavioural ecology in the tropics remains limited. Our results lend support to previously untested hypotheses about the possible use of the Timor Trough as a foraging site by eastern Indian Ocean pygmy blue whales during the late austral winter and early austral spring.

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Rapid phytoplankton response to wind forcing influences productivity in upwelling bays

Cited by 4 publications

References 31 publications

Drivers of the spatial behaviour of the threatened thornback skate (Raja clavata)

Drivers of the spatial behaviour of the threatened thornback skate (Raja clavata)

Contrasting resistance of prokaryotic plankton biomass and community composition to experimental nutrient inputs in a coastal upwelling system (NW Spain)

Evidence of likely foraging by pygmy blue whales in the Timor Trough during the late austral winter and early austral spring

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