Estrella Malca

Pelagic food web realignment supports resilient larvae of Southern Bluefin Tuna in a warming ocean

Michael R. Landry, Raúl Laiz‐Carrión, Estrella Malca, Rasmus Swalethorp et autres

Many of the oceans' top predatory fishes at low to mid latitudes face an uncertain future as their vulnerable larvae deal with higher environmental temperature and reduced productivity associated with climate change. However, ocean ecosystem models that predict a general decline of …

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Biometrics, identifications, and isotopic values of larval fish and isotopic values of zooplankton from samples collected on R/V Roger Revelle cruise RR2201 (BLOOFINZ-IO) in Argo Basin region off Northwest Australia from January to March 2022

Estrella Malca, Raúl Laiz‐Carrión, José María Quintanilla, Ricardo Borrego‐Santos et autres

This dataset contains larval fish biometrics, larval identifications, and isotopic values. Zooplankton data and corresponding isotopic values are also included. Data are from samples collected on cruise RR2201 of R/V Roger Revelle (BLOOFINZ-IO, January-March 2022) in the Argo Basin region off Northwest …

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Southern Bluefin Tuna (Thunnus maccoyii) dominated the larval tuna assemblage during the 2022 spawning season in the eastern Indian Ocean

Estrella Malca, Carolina Johnstone, Raúl Laiz-Carrión, José M. Quintanilla et autres

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Comparative food-web analysis of bluefin tuna spawning habitats in the eastern Indian Ocean and Gulf of Mexico

Michael R. Stukel, Michael R. Landry, Moira Décima, Christian K. Fender et autres

ABSTRACT Using linear inverse ecosystem modeling as a data assimilation tool, we compare spawning grounds of Atlantic and Southern Bluefin Tuna (ABT and SBT, respectively) based on results from field campaigns in the Gulf of Mexico (GoM) and eastern Indian Ocean off …

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The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic

James G. Ditty, Estrella Malca, Lourdes Vásquez–Yeomans

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Optimal maternal feeding isotopic niche: influence of breeder trophic behaviour on larval growth and survival in bluefin tuna species

José María Quintanilla, Ricardo Borrego-Santos, Estrella Malca, Isabel Mesquita Riveiro et autres

Maternal effects play a fundamental role in shaping early larval growth and survival in marine fishes. This study explores the relationship between maternal trophic ecology and larval growth in bluefin tunas, with a focus on Southern Bluefin Tuna (SBT) and an expanded …

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Hotspots in the heat: Bayesian spatial modeling of Southern Bluefin Tuna larvae in a warming Argo Basin

M.Grazia Pennino, Barbara A. Muhling, Estrella Malca, Raúl Laiz-Carrión et autres

The Argo Basin, located in the eastern Indian Ocean off northwestern Australia, is the primary spawning ground for Southern Bluefin Tuna ( Thunnus maccoyii ). Understanding the environmental drivers of larval distribution in this region is essential to anticipate potential climate impacts. …

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A re-evaluation of Atlantic bluefin tuna (Thunnus thynnus) spawning distribution in the western Atlantic Ocean

David E. Richardson, Katrin E. Marancik, Malgorzata Adamus, Elisabeth A. Broughton et autres

• Atlantic bluefin tuna spawning patterns evaluated with larval and reproductive data. • Direct evidence of bluefin spawning in multiple areas of the western Atlantic • Northern Gulf and Western Slope Sea the most prominent spawning areas. • Data consistent with a …

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Selective feeding of southern Bluefin Tuna (Thunnus maccoyii) larvae on appendicularians in their eastern Indian Ocean spawning region

Rasmus Swalethorp, Estrella Malca, Akihiro Shiroza, Lindsey Kim et autres

We investigated ontogenetic variability in feeding and prey selection by Southern Bluefin Tuna larvae (SBT; Thunnus maccoyii ) in their only global spawning region, located in the eastern Indian Ocean between northwestern Australia and Indonesia. Zooplankton prey and SBT larvae were sampled …

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Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean

Raúl Laiz‐Carrión, Ricardo Borrego‐Santos, J.M. Quintanilla-Hervás, Claudio Quezada- Romegialli et autres

We examined trophic ecology and its influence on larval growth variability for three scombrids, southern bluefin ( Thunnus maccoyii , SBT), albacore ( T. alalunga , ALB), and skipjack tunas ( Katsuwonus pelamis , SKJ), that share a common spawning ground in …

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Revisiting daily growth and survival insights of Southern Bluefin Tuna (Thunnus maccoyii) larvae in the eastern Indian Ocean

Ricardo Borrego‐Santos, J.M. Quintanilla-Hervás, Raúl Laiz‐Carrión, Estrella Malca et autres

This study analyzed the growth patterns and survival of Southern bluefin tuna (SBT, Thunnus maccoyii ) larvae collected during January–February 2022 in their only known spawning area in the eastern Indian Ocean (IO). Otolith microstructure was examined to characterize both population-level and …

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Overview of BLOOFINZ/INDITUN investigations of the southern bluefin spawning region off northwest Australia, January–March 2022

Michael R. Landry, Raúl Laiz‐Carrión, Sven A. Kranz, Karen E. Selph et autres

Southern Bluefin Tuna (SBT, Thunnus maccoyii ) range broadly in rich feeding grounds of the Southern Hemisphere but spawn only in a small tropical region off northwestern Australia directly downstream of the Indonesian Throughflow. Here, we describe goals, physical context, design and …

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