Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front DOI Creative Commons
Adam J. Reed, Jasmin A. Godbold, Martin Solan

et al.

Ecology and Evolution, Journal Year: 2021, Volume and Issue: 11(11), P. 6900 - 6912

Published: May 2, 2021

Abstract Climate‐induced changes in the ocean and sea ice environment of Arctic are beginning to generate major rapid ecosystems, but effects directional forcing on persistence distribution species remain poorly understood. Here, we examine reproductive traits population dynamics bivalve Astarte crenata star Ctenodiscus crispatus across a north–south transect that intersects polar front Barents Sea. Both present large oocytes indicative short pelagic or direct development do not differ size–frequency between 74.5 81.3º latitude. However, despite gametogenic maturity, found low frequencies certain size classes within populations may indicate periodic recruitment failure. We suggest A. could occur periodically when conditions favorable, while C. characterized by episodic failures. Pyloric caeca indices show food uptake is greatest at, north of, front, providing credence view interannual variations quantity quality primary production its flux seafloor, linked variable extent thickness ice, likely be strong determinants physiological fitness. Our findings provide evidence long‐term survival only simple function adaptive capacity specific environmental changes, will also contingent frequency occurrence years where support reproduction settlement.

Language: Английский

Trait-mediated processes and per capita contributions to ecosystem functioning depend on conspecific density and climate conditions DOI Creative Commons
Trystan Sanders, Martin Solan, Jasmin A. Godbold

et al.

Communications Earth & Environment, Journal Year: 2024, Volume and Issue: 5(1)

Published: Feb. 12, 2024

Abstract The ecological consequences of environmental change are highly dependent on the functional contributions surviving community, but categorical descriptors commonly used to project ecosystem futures fail capture context response variability. Here, we show that intraspecific variability for a range sediment-dwelling marine invertebrates is moderated by changes in density conspecifics and/or climatic conditions. Although these trait-mediated result modifications properties, find individuals functioning not necessarily additive but, instead, alterations per capita performance. Our findings also indicate trait variation within species can exert greater influence than between species. Hence, projections likely outcomes scale from mean values unlikely be robust, highlighting need account how and when results context-dependent community responses change.

Language: Английский

Citations

7
Arctic marine ecosystems face increasing climate stress DOI Open Access
Jiban Chandra Deb, Sarah A. Bailey

Environmental Reviews, Journal Year: 2023, Volume and Issue: 31(3), P. 403 - 451

Published: Feb. 1, 2023

Arctic warming is occurring at a much faster rate than in other parts of the globe, with potentially devastating consequences for diverse array species within ecologically and biologically sensitive areas marine region. However, climate change research this region sparse compared to biomes, hindering conservation efforts. In article, we review synthesize available literature understand observed potential impacts on different ecosystems We reviewed 253 articles reporting changes response (225 studies documenting 28 predicted impacts). The revealed that most effort has been concentrated only subset Large Marine Ecosystems (LMEs) (5/18 LMEs), majority LMEs being poorly studied. papers focused mammals (19%) followed by microalgae (17%). A number documented variability planktonic communities (microalgae, macroalgae, zooplankton), resulting alteration ecosystem structure function. Reproductive failure, decline populations, diet composition, behavior, breeding biology were reported sea birds mammals. Further, shifts spatial distribution fishes several studies. This provides persuasive evidence multiple indices are changing, almost all components biotic (from plankton top predators). identify gaps (such as limited inventory biota, robustness data supporting an Ocean scale, suitability assessment species) where future can help quantify advance understanding their adaptive management.

Language: Английский

Citations

13
Ocean acidification does not overlook sex: Review of understudied effects and implications of low pH on marine invertebrate sexual reproduction DOI Creative Commons
Jacqueline L. Padilla‐Gamiño,

Lindsay Alma,

Laura H. Spencer

et al.

Frontiers in Marine Science, Journal Year: 2022, Volume and Issue: 9

Published: Oct. 28, 2022

Sexual reproduction is a fundamental process essential for species persistence, evolution, and diversity. However, unprecedented oceanographic shifts due to climate change can impact physiological processes, with important implications sexual reproduction. Identifying bottlenecks vulnerable stages in reproductive cycles will enable better prediction of the organism, population, community, global-level consequences ocean change. This article reviews how acidification impacts processes marine invertebrates highlights current research gaps. We focus on five economically ecologically taxonomic groups: cnidarians, crustaceans, echinoderms, molluscs ascidians. discuss spatial temporal variability experimental designs, identify trends performance acidified conditions context early traits (gametogenesis, fertilization, resource allocation), provide quantitative meta-analysis published literature assess effects low pH fertilization rates across taxa. A total 129 studies investigated 122 selected The dependent taxa, specific examined, study location. Our reveals that rate decreases as decreases, but are taxa-specific. Echinoderm appears more sensitive than changes, while data limited, cnidarians may be most sensitive. Studies echinoderms bivalve prevalent, crustaceans cephalopods among least studied even though they constitute some largest fisheries worldwide. lack information has commercial aquaculture, wild fisheries, conservation restoration populations. recommend expose organisms different levels during entire gametogenic cycle, not only final before gametes or larvae released. argue increased associated molecular mechanisms chemistry. recommendations future allow understanding affected rapidly changing environment.

Language: Английский

Citations

16
Reproductive traits and population dynamics of benthic invertebrates indicate episodic recruitment patterns across an Arctic polar front DOI Creative Commons
Adam J. Reed, Jasmin A. Godbold, Martin Solan

et al.

Ecology and Evolution, Journal Year: 2021, Volume and Issue: 11(11), P. 6900 - 6912

Published: May 2, 2021

Abstract Climate‐induced changes in the ocean and sea ice environment of Arctic are beginning to generate major rapid ecosystems, but effects directional forcing on persistence distribution species remain poorly understood. Here, we examine reproductive traits population dynamics bivalve Astarte crenata star Ctenodiscus crispatus across a north–south transect that intersects polar front Barents Sea. Both present large oocytes indicative short pelagic or direct development do not differ size–frequency between 74.5 81.3º latitude. However, despite gametogenic maturity, found low frequencies certain size classes within populations may indicate periodic recruitment failure. We suggest A. could occur periodically when conditions favorable, while C. characterized by episodic failures. Pyloric caeca indices show food uptake is greatest at, north of, front, providing credence view interannual variations quantity quality primary production its flux seafloor, linked variable extent thickness ice, likely be strong determinants physiological fitness. Our findings provide evidence long‐term survival only simple function adaptive capacity specific environmental changes, will also contingent frequency occurrence years where support reproduction settlement.

Language: Английский

Citations

6