Biology of the Nazca and Sala y Gòmez Submarine Ridges, an Outpost of the Indo-West Pacific Fauna in the Eastern Pacific Ocean: Composition and Distribution of the Fauna, its Communities and History

Парін, Н. В.; Миронов, А. Н.; Nesis, K. N.

doi:10.1016/s0065-2881(08)60017-6

Cited by 146 publications

(196 citation statements)

References 38 publications

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“…According to Acuña et al (2008), the frequency of occurrence for the Chilean jagged lobster in 29 evaluation cruises for demersal crustaceans off the central Chilean coast was 27.6%. Depth distribution: in the Nazca ridge, this species has been recorded at depths between 225 and 420 m (Arana & Venturini, 1991;Arana & Soto, 1994;Parin et al, 1997). Around the Desventuradas Islands between 286-406 m (National Geographic-Oceana, 2014), and in the Robinson Crusoe and Santa Clara islands some Chilean jagged lobsters have been captured at depths of approximately 250 m (Arana & Vega, 2000).…”

Section: Distributionmentioning

confidence: 99%

“…Geographical distribution: this species is abundant in the Nazca submarine ridge, especially east of 84°W, off Peru (Prosvirov, 1990;Rudjakov et al, 1990;Parin et al, 1997) where it has been commercially fished by industrial vessels (Parin et al, 1997;Arana & Venturini, 1991). It is also found around the Desventuradas Islands and the Juan Fernández Archipelago (Dupré, 1975;George, 1976;Retamal, 1981Retamal, , 1994Andrade, 1985;Báez & Ruiz, 1985; (Báez & Weinborn, 1983).…”

Section: Distributionmentioning

confidence: 99%

“…This ridge is made up of numerous seafloor elevations, extending towards the southeast-northeast for about 1100 km and is 200 km wide, being subducted under the South American plate off the coast of Peru. It includes several seamounts differing greatly in form, summit depth, degree of isolation and oceanographic conditions (Parin et al, 1997). This ridge attaches to the Salas y Gómez Ridge, at around 83°W, runnig east to west up to the junction with East Pacific dorsal, with Easter Island (27°08'S, 109°25'W) and Salas y Gómez Island (26°27'S, 105°28'W) as emerging peaks near the Nazca Ridge, are the Desventuradas Islands, comprised of the San Felix (26º17.2'S, 80°05.5'W), and San Ambrosio islands; the González islet and the Roca Peterborough.…”

Section: Environmentmentioning

confidence: 99%

“…According to Parin et al (1997), the summits of the Nazca ridge seamounts show remnants of coral atolls, suggesting that after the Miocene, these summits would have been 300-375 m higher than at present, so that many of the peaks would have formed islands. At present, several of these mountains posses the shape of guyots with vast flat summits, possibly caused by abrasion during the sinking process.…”

Section: Environmentmentioning

confidence: 99%

“…The optimum organoleptic characteristics and abundance of the Chilean jagged lobster in the Nazca ridge area motivated that, initially, ships from the former USSR and subsequently a Soviet-Chilean company to perform fishing operations with the use of a factory vessel between December 1990 and February 1991 (Weinborn, 1992;Parin et al, 1997). Thereafter, the company Pesca Chile S.A. carried out an exploratory fishing campaign in the same area in order to determine the technical and economic feasibility of extracting this lobster, testing traps with a variety of designs (shape, size and functionality) in order to establish the most appropriate gear for extraction of this species (Arana & Venturini, 1991).…”

Section: Introductionmentioning

confidence: 99%

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Chilean jagged lobster, Projasus bahamondei, in the southeastern Pacific Ocean: current state of knowledge

Arana

2014

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ABSTRACT. The Chilean jagged lobster (Projasus bahamondei) is a deep-water crustacean (175-550 m) occurring in certain areas of the southeastern Pacific Ocean, including the Nazca Ridge, Desventuradas Islands, the Juan Fernandez archipelago and ridge, and the continental slope off the central coast of Chile. This review describes the taxonomic status, geographical and bathymetric distribution, some biological aspects and habitat characteristics of this species. Additionally, both artisanal and industrial exploitation attempts made within the region are detailed, as well as fishing operation results, chemical composition, different elaboration procedures and the destination of the catch. The main objectives of this review are to contribute to the knowledge of P. bahamondei as a component of the deep-sea ecosystem and to highlight its importance as a potential fishery resource. Keywords: Projasus bahamondei, Chilean jagged lobster, distribution, biology, fishing, southeastern Pacific.Langosta enana, Projasus bahamondei, en el océano Pacífico suroriental: estado actual de conocimiento RESUMEN. La langosta enana (Projasus bahamondei) es un crustáceo de aguas profundas (175-550 m) presente en el océano Pacífico suroriental: en la cordillera de Nazca, islas Desventuradas, archipiélago y cordón submarino de Juan Fernández y en el talud continental frente a la costa central de Chile. Se describe su estatus taxonómico, distribución geográfica y batimétrica, diferentes aspectos sobre su biología y las características del hábitat donde vive. Adicionalmente, se detallan los intentos de explotación realizados en la región, tanto a nivel artesanal como industrial, así como los resultados de las operaciones de pesca, su composición química, los diferentes procesos de elaboración y el destino de las capturas. El principal objetivo de esta revisión es contribuir al conocimiento de P. bahamondei, como componente del ecosistema de aguas profundas, así como destacar su relevancia como recurso pesquero potencial en el océano Pacífico suroriental.

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Section: Distributionmentioning

confidence: 99%

Section: Distributionmentioning

confidence: 99%

Section: Environmentmentioning

confidence: 99%

Section: Environmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chilean jagged lobster, Projasus bahamondei, in the southeastern Pacific Ocean: current state of knowledge

Arana

2014

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Biogeography and Biodiversity of Seamounts

Stocks¹,

Hart²

Seamounts: Ecology, Fisheries &Amp; Conservation

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This chapter evaluates the emergent community properties of biodiversity, endemism, and biogeography at seamounts. As with all deep-sea environments, the paucity of sampling, varying, and incompatible methods create problems, but certain patterns emerge, which differ between the pelagic and benthic components of the community. Pelagic fishes and plankton found over seamounts do not seem to be strongly differentiated from nearby oceanic pelagic communities. Abundances may vary, with certain species concentrated or depleted over a seamount, but the same suite of species is often found, and endemics (species restricted to one seamount or seamount chain) are not commonly reported. This indicates that the management of pelagic fisheries over seamounts should be within the context of a regional or stock-wide management plan. It also raises the potential for bioregionalization schemes, such as Longhurst's pelagic provinces, to be used to categorize seamount communities globally, for use in management and to prioritize future research. The benthic community of fishes and invertebrates, in contrast, can differ more strongly from either the surrounding deep seafloor or nearby continental margins of similar depth. Rates of endemism between 10% and 50% have been reported in medium and large-scale studies, though these numbers will likely change with more deep-sea sampling. Overall benthic abundances are often elevated on seamounts compared to soft-sediment deep-sea communities, though there is no clear trend towards seamounts supporting either an elevated or a depressed number of species (species richness) compared to the deep sea or an continental margins. Biogeographically, when endemic species are not considered, the seamounts appear to support a subset of the regional species pool. However, the rates of endemism are high enough, and the types of communities supported are distinct enough, that categorizing the benthic communities on seamounts by the larger biogeographic region they fall within may not be a useful approach. It also indicates that seamounts need to be recognized and managed as distinct habitat types, and not simply as part of a larger region.

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