Variation in the trophic niche and food provisioning between the early and late chick-rearing stages in Magellanic penguins Spheniscus magellanicus at Martillo Island, Tierra del Fuego, Argentina DOI
Samanta Dodino,

Luciana Riccialdelli,

Michael J. Polito

et al.

Marine Biology, Journal Year: 2023, Volume and Issue: 170(8)

Published: June 20, 2023

Language: Английский

Multispecies mass mortality in the Beagle Channel associated with paralytic shellfish toxins DOI
Andreana Cadaillón,

Belen Mattera,

Antonela Albizzi

et al.

Harmful Algae, Journal Year: 2024, Volume and Issue: 132, P. 102581 - 102581

Published: Jan. 18, 2024

Language: Английский

Citations

8
The complex network of trophic interactions in a sub-Antarctic oceanic Marine Protected Area DOI Creative Commons

TI Marina,

IR Schloss,

Gustavo A. Lovrich

et al.

Marine Ecology Progress Series, Journal Year: 2024, Volume and Issue: 736, P. 1 - 18

Published: April 24, 2024

The world’s oceans designated under marine protection have increased recently. Most protected areas (MPAs) target vulnerable, keystone, charismatic, and/or endemic species. In the sub-Antarctic, ocean is associated with oceanic islands, except for MPAs Namuncurá-Burdwood Bank I and II (MPA N-BB; ~53-55°S, ~56-62°W), which are a submarine plateau southern deep slope, respectively. We present first analysis of predator-prey network MPA N-BB, applying topological approach to characterise complexity structure food web identify species’ role. N-BB consists 1788 interactions 379 species, connectance 0.01. Almost half consumers feed at more than one trophic level (0.48), displays small-world pattern (short path length, high clustering compartments). This suggests that ecosystem might be vulnerable perturbations targeting highly connected although some properties provide resilience resistance, resulting in rearranged preserves its original functions. Several species arise as being important functioning response perturbations. Generalist mainly fishes, play crucial role bentho-pelagic coupling should considered relevant energy transfer agents ecosystem. argue diversity including both benthic pelagic habitats, responsible securing connectivity within withstand perturbations, thereby contributing stability

Language: Английский

Citations

7
Food web structure and species’ role in the sub-Antarctic Marine Protected Area Yaganes DOI

Melina Scian,

Luciana Riccialdelli,

Tomás I. Marina

et al.

Polar Biology, Journal Year: 2025, Volume and Issue: 48(2)

Published: Feb. 20, 2025

Language: Английский

Citations

0
Plankton metabolic balance in the eastern Beagle Channel during spring DOI
Maité Latorre,

Carla F. Berghoff,

Ricardo Giesecke

et al.

Journal of Marine Systems, Journal Year: 2023, Volume and Issue: 240, P. 103882 - 103882

Published: March 24, 2023

Language: Английский

Citations

9
Spring plankton energy content by size classes in two contrasting environments of a high latitude ecosystem: The Beagle Channel DOI
Daniel O. Bruno,

Constanza Valencia-Carrasco,

María A. Paci

et al.

Journal of Marine Systems, Journal Year: 2023, Volume and Issue: 240, P. 103876 - 103876

Published: March 6, 2023

Language: Английский

Citations

8
Stable isotope spatial patterns for the Southwest Atlantic Ocean towards polar waters DOI

Luciana Riccialdelli,

Samanta Dodino,

Clara M. Iachetti

et al.

Progress In Oceanography, Journal Year: 2024, Volume and Issue: 229, P. 103337 - 103337

Published: Aug. 26, 2024

Language: Английский

Citations

2
Food web structure and species’ role in an oceanic Marine Protected Area in the subantarctic DOI Creative Commons

Melina Scian,

Luciana Riccialdelli,

Tomás I. Marina

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 4, 2024

Abstract The Marine Protected Area Yaganes (MPAY) was created in response to the great deterioration that has been suffering ecosystems due environmental crisis is affecting our planet, with aim protect key ocean habitats and species. Located at southern tip of South America, MPAY home a wide variety marine biodiversity habitats, which makes it ​​special interest for conservation subantarctic environments. For first time, we described potential trophic interactions within MPAY, emphasis pelagic realm. We applied both network-level species-level approach characterise structure complexity properties, aiming comprehend dynamics specific roles certain species food web. In terms complexity, web consists 127 658 predator-prey interactions, density 5.18 connectance 0.04. Regarding its structure, around 69% occupied intermediate levels. Keystone Species Index (KSI), highlighted importance some such as Patagonian toothfish (Dissostichus eleginoides), amphipod Themisto gaudichaudii, euphausiids myctophids, among others,

Language: Английский

Citations

1
Vertically distinct sources modulate stable isotope signatures and distribution of Mesozooplankton in central Patagonia: The Golfo de Penas - Baker Channel connection and analogies with the Beagle Channel DOI
Leonardo R. Castro,

Samuel Soto-Mendoza,

Luciana Riccialdelli

et al.

Journal of Marine Systems, Journal Year: 2023, Volume and Issue: 241, P. 103892 - 103892

Published: April 23, 2023

Language: Английский

Citations

1
The Sub-Antarctic Beagle Channel marine ecosystem: A regional and comprehensive sentinel of global change DOI
Gustavo Ferreyra, Humberto E. González

Journal of Marine Systems, Journal Year: 2023, Volume and Issue: 241, P. 103914 - 103914

Published: June 30, 2023

Language: Английский

Citations

1
Gomeza serrata Dana, 1852 is a trichopeltariid, not a corystid, and a junior synonym of Peltarion spinosulus (White, 1843) (Decapoda: Brachyura: Trichopeltarioidea) DOI

Peter K. L. Ng,

Marcos Tavares

Journal of Crustacean Biology, Journal Year: 2024, Volume and Issue: 44(3)

Published: July 6, 2024

Abstract The corystid Gomeza serrata Dana, 1852, described from Patagonia in South America has rarely been reported and its taxonomy is poorly understood. While superficially similar to G. bicornisGray, 1831 the Indo-West Pacific type species of Gray, 1931, direct comparisons have not recorded. Examination topotypic specimens show that actually a juvenile Peltarion spinosulus (White, 1843), member family Trichopeltariidae. A neotype selected for stabilize taxonomy.

Language: Английский

Citations

0