A decade-long cruise time-series (2008–2018) of physical and biogeochemical conditions in the southern Salish Sea, North America

Published: Sept. 28, 2023

Abstract. Coastal and estuarine waters of the northern California Current System southern Salish Sea host an observational network capable characterizing biogeochemical dynamics related to ocean acidification, hypoxia, marine heatwaves. Here we compiled data sets from a set cruises conducted in Puget Sound (southern Sea) its boundary (Strait Juan de Fuca Washington coast). This product provides decade with consistent formatting, extended quality control, multiple units for parameters such as oxygen different end use needs conventions. All obtained high-quality temperature, salinity, inorganic carbon, nutrient, observations provide insight into dynamic distribution physical conditions this large urban estuary complex on west coast North America. At all sampling stations, CTD casts included sensors measuring conductivity, pressure, concentrations. Laboratory analyses discrete water samples collected at stations throughout column Niskin bottles provided measurements dissolved carbon (DIC), oxygen, nutrient (nitrate, nitrite, ammonium, phosphate, silicate), total alkalinity (TA) content. includes 35 research cruises, including 715 oceanographic profiles, > 7490 sensor oxygen; ≥ 6070 samples; 4462 variables (i.e., DIC TA). The comprising cruise compilation collectively characterize spatial temporal variability region ranges (temperature = 6.0–21.8 °C, salinity 15.6–34.0) (oxygen 12–481 µmol kg–1, 1074–2362 1274–2296 kg–1) central understanding acidification hypoxia productive system numerous interacting human impacts ecosystems. conform climate-quality observing guidelines Global Ocean Acidification Observing Network, U.S. National Oceanic Atmospheric Administration's Program, community best practices. on-going time-series supports coastal monitoring objectives Center Administration (NOAA) Research programs, diverse users information needed frame biological research, validate numerical models, inform state tribal fisheries management, support decision makers. 2008–2018 used publication are available https://doi.org/10.25921/zgk5-ep63 (Alin et al., 2022).

Language: Английский

---

Directional fabrication and dissolution of larval and juvenile oyster shells under ocean acidification

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(1991)

Published: Jan. 18, 2023

Biomineralization is one of the key biochemical processes in calcifying bivalve species such as oysters that affected by ocean acidification (OA). Larval life stages are made aragonite crystals whereas adults calcite and/or aragonite. Though both and crystal polymorphs calcium carbonate, they have different mechanical properties hence it important to study micro nano structure oyster shells under OA understand mechanisms which affects biomineralization ontogeny. Here, we studied larval juvenile an economically ecologically estuarine species,

Language: Английский

---

Predictable patterns within the kelp forest can indirectly create temporary refugia from ocean acidification

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 945, P. 174065 - 174065

Published: June 17, 2024

Kelps are recognized for providing many ecosystem services in coastal areas and considered ocean acidification (OA) mitigation. However, assessing OA modification requires an understanding of the multiple parameters involved carbonate chemistry, especially highly dynamic systems. We studied effects sugar kelp (Saccharina latissima) on experimental farm at north end Hood Canal, Washington-a low retentive system. In this field mesocosm study, two oyster species (Magallana gigas, Ostrea lurida) were exposed locations mid, edge, outside array. The Head Sugar Kelp Farm Model outputs used to identify dominating factors spatial temporal dynamics, while wavelet spectrum analyses helped predictability patterns. This was linked measured biological responses (dissolution, growth, isotopes) organisms. Positioned area high (sub)-diel tidal fluxes with retention potential, there no measurable alterations seawater pH study site, demonstrating that array could not induce a direct mitigating effect against OA. beneficial calcifiers still observed, which causes: increased improved provisioning through kelp-derived particulate organic resource utilization as such, habitat suitability indirectly created refugia can serve analogue bay habitats where prevailing physical forcing drives chemical changes. Future macrophyte studies investigate should focus also importance patterns, additionally improve conditions marine vulnerable or compromised by OA, including aquaculture sustainability.

Language: Английский

---

Spatiotemporal variability of pH in coastal waters of New Brunswick (Canada) and potential consequences for oyster aquaculture

Anthropocene Coasts, Journal Year: 2023, Volume and Issue: 6(1)

Published: Aug. 25, 2023

Abstract There is a void in the knowledge of acidification status Eastern Canada's coastal waters. This crucial to evaluating threats posed marine life, particularly oyster farming, flagship New Brunswick seafood production. In this study, we measured temporal variability pH and related environmental parameters three bays Northeastern Brunswick. We also evaluated potential impact observed levels on ( Crassostrea virginica Gmelin, 1791), based available literature species’ sensitivity acidification. investigated presence inherent cycles with Fourier transform spectral filtering technique. Our results show that highly variable studied area, values ranging from 7.31 8.90. A seasonal effect was apparent, as fluctuations were set at lowest level winter when cover ice snow bay present. The analysis revealed clear semidiurnal tidal pattern pH, being inversely water summer directly it winter. subtraction all components allowed detection circadian rhythm not pace alternation between day night but rather slowly drifted so troughs occurred during full moon period. Short periodicities circa 8 6 h existed two bays. Based current C. ’s acidification, recruitment, growth, survival are unlikely be impacted by present area. However, further might overcome resilience , especially larvae produced commercial hatcheries.

Language: Английский

---

Ocean acidification will not affect the shell strength of juveniles of the commercial clam species Chamelea gallina: implications of the local alkalinization of seawater.

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 202, P. 106746 - 106746

Published: Sept. 11, 2024

Language: Английский

---

Sensitivity of pteropod calcification to multi stressor variability in coastal habitats

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 204, P. 106868 - 106868

Published: Dec. 12, 2024

Language: Английский

---

Variations in phenotypic plasticity in a cosmopolitan copepod species across latitudinal hydrographic gradients

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: Oct. 20, 2022

Studies assessing latitudinal variations in habitat conditions and phenotypic plasticity among populations yield evidence of the mechanisms governing differentiation potential to adapt current/future changes. The cosmopolitan copepod species Acartia tonsa thrives across ocean clines delimiting Seasonal (30–40° S) Permanent (10–30° Upwelling coastal provinces established during middle–late Pliocene (3.6–1.8 Ma) alongshore South East Pacific (SEP), nowadays exhibiting contrasting variability features related several drivers (temperature, salinity, pH, food availability). Latitudinal variation range environmental can contribute toward shaping divergent A. tonsa’s phenotypes, for example, through specific patterns morphological physiological traits tolerance drivers. With aim contributing understanding these adaptive processes a relatively little studied oceanic region, here we compared expression parental (i.e., adult size, egg production, ingestion rate) offspring size) relation different cohorts two distant (> 15° latitude) inhabiting estuarine upwelling habitats located province, respectively. Mean ranges within varied significantly examined regions vs. Permanent). We also found significant differences coupling trait expression, suggesting that expressions might be variability. divergence was translated cohort-related trade-offs regulating reproduction production efficiency jointly determine level plasticity, genetic structure, or local adaptation. current findings provide novel how phenotypes sustain variable SEP.

Language: Английский

---

Juvenile Dungeness crab foraging behavior and lipid composition is altered more by food quantity than seawater pH in a multi-stressor experiment

Journal of Experimental Marine Biology and Ecology, Journal Year: 2023, Volume and Issue: 563, P. 151897 - 151897

Published: March 13, 2023

Increases in atmospheric, anthropogenic carbon are driving reductions seawater pH, a process referred to as ocean acidification. Reduced pH can influence behavior of marine animals, but little is currently known about how juvenile crustaceans will respond. We conducted lab experiments improve our understanding the consequences exposure and food quantity on Dungeness crab (Metacarcinus magister, (Dana, 1852)) nutritional condition. To understand foraging sensing crab, this interacts with their status, we exposed recently settled second instar juveniles either ambient or reduced for 42-d, crossed 'maintenance'- low-quantity 'challenge' diet treatment. After experimental period, introduced into experiments. In experiment, placed arena unidirectional flow, where measured discovery time allocation activities 300-s trials all individual crab. Food influenced both speed which identified there was no interactive effect factors. For used two-current flume plumbed seawater. This flow-through provided choice between treatment waters allowed us measure amount individuals spent side trials. There prior addition trials, evaluated condition by quantifying total lipid content whole-body tissues fatty acid profile composition fed maintenance during period. The proportional profiles differed based exposure, effects. However, did not detect differences concentrations key summary categories acids (e.g., saturated, monounsaturated, polyunsaturated) exposure. Our results indicate that availability has greater impact than representing 0.3 unit decrease predicted 2100.

Language: Английский

---

Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients

Aquaculture Environment Interactions, Journal Year: 2023, Volume and Issue: 15, P. 287 - 306

Published: July 24, 2023

Ocean acidification threatens many marine organisms, including oysters. Seagrass habitat has been suggested as a potential refuge for oysters because it may ameliorate stressful carbonate chemistry and augment food availability. We conducted an in situ study to investigate whether eelgrass Zostera marina affects the growth of juvenile Pacific Crassostrea gigas influences local or quantity at sites where we expected contrasting conditions two US west coast estuaries. Juvenile were out-planted typical intertidal on-bottom (just above sediment) off-bottom (45 cm culture positions adjacent unvegetated habitats from June September 2019. Water quality was measured with sondes 24 h periods each month, discrete water samples collected conjuncture. Results show that did not alter average (pH, p CO2, Ωcalcite), but consistently reduced available (relative chlorophyll a) . Eelgrass had little no effect on shell tissue have influenced their energy allocation; displayed 16% higher ratio compared when cultured on-bottom. At seascape scale, site-level pH negatively correlated alone. Overall, these findings suggest display compensatory response allocate more than under like acidic and/or altered supply due immersion presence.

Language: Английский

---

Comment on essd-2023-239

Published: Oct. 27, 2023

Abstract. Coastal and estuarine waters of the northern California Current System southern Salish Sea host an observational network capable characterizing biogeochemical dynamics related to ocean acidification, hypoxia, marine heatwaves. Here we compiled data sets from a set cruises conducted in Puget Sound (southern Sea) its boundary (Strait Juan de Fuca Washington coast). This product provides decade with consistent formatting, extended quality control, multiple units for parameters such as oxygen different end use needs conventions. All obtained high-quality temperature, salinity, inorganic carbon, nutrient, observations provide insight into dynamic distribution physical conditions this large urban estuary complex on west coast North America. At all sampling stations, CTD casts included sensors measuring conductivity, pressure, concentrations. Laboratory analyses discrete water samples collected at stations throughout column Niskin bottles provided measurements dissolved carbon (DIC), oxygen, nutrient (nitrate, nitrite, ammonium, phosphate, silicate), total alkalinity (TA) content. includes 35 research cruises, including 715 oceanographic profiles, > 7490 sensor oxygen; ≥ 6070 samples; 4462 variables (i.e., DIC TA). The comprising cruise compilation collectively characterize spatial temporal variability region ranges (temperature = 6.0–21.8 °C, salinity 15.6–34.0) (oxygen 12–481 µmol kg^–1, 1074–2362 1274–2296 kg^–1) central understanding acidification hypoxia productive system numerous interacting human impacts ecosystems. conform climate-quality observing guidelines Global Ocean Acidification Observing Network, U.S. National Oceanic Atmospheric Administration's Program, community best practices. on-going time-series supports coastal monitoring objectives Center Administration (NOAA) Research programs, diverse users information needed frame biological research, validate numerical models, inform state tribal fisheries management, support decision makers. 2008–2018 used publication are available https://doi.org/10.25921/zgk5-ep63 (Alin et al., 2022).

Language: Английский

---