On the bathymetric and latitudinal distributions of Coelorinchus cf. cookianus (Gadiformes: Macrouridae): First record documented with a remotely operated vehicle (ROV) in interior waters of the Campana Archipelago in central Patagonia, Chile (48°S)

Gorny, Matthias; Zapata‐Hernández, Germán

doi:10.4067/s0718-686x2018000200029

Cited by 4 publications

(5 citation statements)

References 7 publications

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“…La porción oeste de la RNK y la sección noroeste del Ventisquero Montt son los únicos lugares en Chile donde se ha registrado el pejerata Coelorinchus cf. cookianus, una especie que habita en el Océano Pacifico cerca de Nueva Zelanda (Gorny M., & Zapata-Hernández, 2018).…”

Section: Discussionunclassified

Descripción de la composición y distribución de ictiofauna bentónica por medio de imágenes submarinas en las aguas interiores de la Reserva Nacional Katalalixar (Patagonia Central Chilena)

Femenias¹,

Gorny²

2022

AIP

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Durante 2009, 2017 y 2018 se realizó un estudio sistemático taxonómico de la ictiofauna presente dentro de la Reserva Nacional Katalalixar (RNK), ubicada en el norte de la Patagonia central Chilena. El objetivo de este estudio fue determinar la distribución geográfica y batimétrica además de la composición de especies de peces bentónicos presentes en esta área geográfica. Los muestreos se llevaron a cabo en 32 estaciones mediante filmaciones submarinas con vehículos operados a control remoto (ROVs), entre los 10 y 220 m de profundidad, identificando las especies posteriormente en base a sus características morfológicas. Se registraron un total de 15 especies dentro de la RNK, encontrándose que más del 90% se distribuyen en todos los fiordos y canales de la Patagonia chilena, 79% en la ecorregión denominada Chiloé – Taitao (zona norte de los fiordos y canales australes), 71% en la ecorregión Kawésqar (zona central) y un 71% en la ecorregión Magallanes (zona sur). En la RNK se identificaron 6 especies de nototenidos, lo cual representó la familia más diversa, registrándose también números similares a otras partes de la Patagonia, considerando que existen entre 8 (Chiloé - Taitao, Kawésqar) y 12 (Magallanes) especies de esta familia en cada ecorregión. La especie Sebastes oculatus fue la especie más frecuente con registros en 11 estaciones (34.4%), y distribuido entre 20 y 220 m de profundidad. Los nototenidos también fueron frecuentes y se registraron en 11 estaciones igualmente (34%), pero exclusivamente en aguas someras entre 20 y 50 m de profundidad, la mayoría de las otras especies identificadas en este estudio fueron registradas en una sola estación. Los registros de este estudio amplifican el conocimiento sobre la distribución geográfica y batimétrica de los peces bentónicos de las aguas interiores de la Patagonia central Chilena, siendo un aporte significativo en el monitoreo de posibles cambios de estos parámetros en relación al actual cambio climático, brindando información relevante para el desarrollo de los instrumentos futuros de planificación y preservación de esta reserva nacional.

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Section: Discussionunclassified

Descripción de la composición y distribución de ictiofauna bentónica por medio de imágenes submarinas en las aguas interiores de la Reserva Nacional Katalalixar (Patagonia Central Chilena)

Femenias¹,

Gorny²

2022

AIP

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“…This area includes a wilderness temperate rainforest with a complex ecosystem of islands and fjords (Bell, Pedersen & Newton, 2007). The offshore area (western side) of the Magellan Sub-Antarctic Channels is one of the few places of the Magellan Biogeographic Province (MBP) (43–56°S; Camus, 2001) that has not been explored systematically by scientific expeditions (Gorny & Zapata-Hernández, 2018) (Figs. 1A and 1B).…”

Section: Introductionmentioning

confidence: 99%

A new record of kelp Lessonia spicata (Suhr) Santelices in the Sub-Antarctic Channels: implications for the conservation of the “huiro negro” in the Chilean coast

Rosenfeld

Méndez

Calderón

et al. 2019

PeerJ

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The Katalalixar National Reserve (KNR) lies in an isolated marine protected area of Magellan Sub-Antarctic channels, which represent an important area for marine biodiversity and macroalgal conservation. The present study is the first report of the species Lessonia spicata, “huiro negro”, in the Magellan Sub-Antarctic channels. This finding has implications for macroalgal biogeography and conservation concerns in the Chilean coast. In the ecological assessments of the KNR in 2018 we found populations of L. spicata, specifically on rocky shores of Torpedo Island and Castillo Channel. The morphological identification and molecular phylogeny based on nuclear (ITS1) sequences revealed that these populations of Lessonia are within the lineage of L. spicata of central Chile. This report increases the species richness of kelps for the Magellan Sub-Antarctic Channels from two to three confirmed species (L. flavicans, L. searlesiana and L. spicata), and it also extends the southern distribution range of L. spicata. This species has high harvest demand and is moving towards southern Chile; thus, these populations should be considered as essential for macroalgal conservation in high latitudes of South America.

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“…Other features of this family include a chin barbel and eyes that appear to be moderate to large in size (Cohen et al, 1990). Additionally, these fish usually have a light organ located underneath their skin along the abdomen's midline (Gorny and Zapata-Hernández, 2018).…”

Section: Macrouridaementioning

confidence: 99%

Identification of Macrourus species (Teleostei: Gadiformes) found near Prince Edward Islands in the Southern Ocean using molecular and morphological analyse.

Shadamorgan

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The genus Macrourus belongs to the family Macrouridae that consist mainly of deep-sea fish.Macrourus contains five species that have a polar distribution, with one species, M. berglax, found in the Atlantic Ocean, and the other four species, M. carinatus, M. holotrachys, M. whitsoni and M. caml, found in the Southern Ocean. The species found in the Southern Ocean are morphologically similar to each other and have overlapping distributional patterns, as a result there have been instances of misidentifications within this genus. Based on morphological characteristics, previous studies have grouped the Southern Ocean Macrourus species into two pairs, viz M. carinatus and M. holotrachys, and M. whitsoni and M. caml. Despite overlapping occurrence elsewhere, morphological studies conducted in the Prince Edward Islands (PEIs) located in the Southern Ocean, have identified only one Macrourus species, M. carinatus. Since there are known cases of species misidentification using morphological identification and distribution overlap within this genus, there is a need for a molecular study that will complement the morphological data. There are no published molecular studies that reviewed species identification in these islands. This study aimed to identify Macrourus specimens found near the PEIs using molecular and morphological analyses. This assessment was done by sequencing the cytochrome c oxidase subunit 1 gene, and by measuring and counting morphometric and meristic characters. The BLAST search which had a sequence similarity of 99 -100%, showed that there are two species represented in this dataset which were identified as M. carinatus and M. holotrachys. This observation was supported by both the phylogenetic and haplotype network trees, which formed two distinct clades. On the other hand, the morphological data did not separate the two species, supporting previous studies that discovered high levels of morphological similarity between M. carinatus and M. holotrachys, which ultimately led to their grouping and/or misidentification. It can therefore be concluded that there are at least two Macrourus species inhabiting waters around PEIs, which are morphologically similar.

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On the bathymetric and latitudinal distributions of Coelorinchus cf. cookianus (Gadiformes: Macrouridae): First record documented with a remotely operated vehicle (ROV) in interior waters of the Campana Archipelago in central Patagonia, Chile (48°S)

Abstract: Sobre las distribuciones batimétricas y latitudinales de Coelorinchus cf. cookianus (Gadiformes: Macrouridae): primer registro documentado con un vehículo operado remotamente (ROV) en aguas interiores del Archipiélago Campana en la Patagonia central, Chile (48° S

Cited by 4 publications

References 7 publications

Descripción de la composición y distribución de ictiofauna bentónica por medio de imágenes submarinas en las aguas interiores de la Reserva Nacional Katalalixar (Patagonia Central Chilena)

Descripción de la composición y distribución de ictiofauna bentónica por medio de imágenes submarinas en las aguas interiores de la Reserva Nacional Katalalixar (Patagonia Central Chilena)

A new record of kelp Lessonia spicata (Suhr) Santelices in the Sub-Antarctic Channels: implications for the conservation of the “huiro negro” in the Chilean coast

Identification of Macrourus species (Teleostei: Gadiformes) found near Prince Edward Islands in the Southern Ocean using molecular and morphological analyse.

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