The planktonic copepods of the Marchile I expedition and of the "Eltanin" cruises 3-6 taken in the SE Pacific

Björnberg, Tagea K. S.

doi:10.11606/issn.2526-3366.bzbm.1973.121316

Cited by 17 publications

(5 citation statements)

References 10 publications

(7 reference statements)

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“…The CSUR fauna are mostly of subantarctic origin, however, tropical or subtropical species being scarce or absent. Nearly 35 species of copepods have been cited for the CSUR (Björnberg 1973). The most abundant species of large copepods are Rhyncalanus nasutus and Calanoides patagoniensis (Arcos 1975, Castro et al 1991 and, of euphausiids, Thysanoessa gregaria and Euphausia lucens, which become even more numerous further south in the fjords region.…”

Section: The Central/southern Upwelling Region (Csur)mentioning

confidence: 99%

Physical-Chemical processes and Patterns of Diversity of the chilean eastern boundary pelagic and benthic marine ecosystems: An overview

Escribano¹,

Fernández

Aranís

2003

Gayana (Concepc.)

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The biological diversity of the Chilean marine ecosystem (CME) has recently become an issue of interest to Chilean scientists and authorities concerned about the impact of human activities and ongoing climate change on the structure, functioning, and sustainable use of this large marine region, recognized as one of the most productive ecosystems of the world`s is oceans. In this paper, the available information is examined in order to describe the major environmental characteristics of the CME and its associated flora and fauna, both in the benthic and pelagic systems, with the main goal of identifying environmental discontinuities and boundaries which may serve to define biogeographical units and characterize their biodiversity patterns. Physical and chemical processes are also described. In the pelagic system, three major regions may be identified: (1) the Northern Upwelling Region (18º-30º S), (2) the Central/Southern Upwelling Region (30º-42º S), and (3) the Austral Fjords Region (42º-55ºS). These could be defined as biogeographical units, though biodiversity patterns may still require further analyses. For the benthic system, two major provinces are distinguished: the Peru-Chile province (from Paita in Peru to Valparaíso in Chile) and the Magellanic province (Chiloé Island to Cape Horn). A clear transition zone at about 30ºS has also been described. The limits of these biogeographical regions, however, are not fixed and may vary seasonally and interannually. Diversity patterns, as well as dominant and key species inhabiting these biogeographic compartments, are described on the basis of the available data. The studies now required to obtain better information to describe diversity and to identify the underlying processes are stressed, as well as the needs for initiating large scale and long-term programs for monitoring species and processes in the CME that may allow future analyses of diversity patterns along the Chilean coast for conservation purposes.

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Section: The Central/southern Upwelling Region (Csur)mentioning

confidence: 99%

Physical-Chemical processes and Patterns of Diversity of the chilean eastern boundary pelagic and benthic marine ecosystems: An overview

Escribano¹,

Fernández

Aranís

2003

Gayana (Concepc.)

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“…Distribution records for the regions outside of the Southern Ocean are derived from the latest reference given to each species in Appendix 1. There has been no attempt to correct for differences in sampling intensity among these regions, although the south temperate region has been sampled least (only mentioned in reports by Hulsemann, 1968, andBjörnberg, 1973), and the north temperate, subarctic, and Arctic have been sampled the most.…”

Section: Methodsmentioning

confidence: 99%

“…Only one of the fi ve species, Cornucalanus robustus, occurs throughout the Southern Ocean; recovered it from 37 deepwater stations in the Antarctic and subantarctic regions. Vervoort (1965a) identifi ed fi ve specimens, including two juvenile copepodids in the deep water of the Gulf of Guinea in the tropical Atlantic, and this remained the only record from outside the Southern Ocean until Björnberg (1973) reported it in the southeastern Pacifi c Ocean.…”

Section: Deepwater Calanoids From Antarctic Waters Reported North Of mentioning

confidence: 99%

Species diversity and distributions of pelagic calanoid copepods (Crustacea) from the Southern Ocean

Park¹,

Ferrari²

2009

Smithsonian at the Poles : Contributions to International Polar Year Science

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“…It is clear that C. acutus has an Antarctic distribution and C. macrocarinatus probably has a subantarctic circumpolar distribution as it has been recorded south of South Africa (Brodsky, 1972;De Decker, 1984) and off New Zealand, (personal observation). It is puzzling that C. macrocarinatus hasn't yet been recorded off South America although Bjornberg (1973) records the occurrence of C. patagoniensis in surface waters close inshore between 30-43°S off the Chilean coast in subantarctic water.…”

Section: The Speciesmentioning

confidence: 99%

Review of the taxonomy of the Calanidae (Copepoda) and the limits to the genus Calanus

Bradford¹

1988

Hydrobiologia

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Conflicting systems of classifying the Calanidae (Brodsky, 1972;Bradford & Jillett, 1974) are analysed and a preferred system recommended. Brodsky's system, based on characters with assumed adaptive and functional significance is rejected as is his claim to have produced a phylogenetic scheme. Bradford & Jillett's system, based on a variety of characters, results in a coherent classification which aims to be neutral concerning phylogenetic relationships among genera. Species of Calanoides, Calanus, Nannocalanus, and Neocalanus are surveyed and the need for further taxonomic work is assessed.

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The planktonic copepods of the Marchile I expedition and of the "Eltanin" cruises 3-6 taken in the SE Pacific

Abstract: SUMÁRIO

Cited by 17 publications

References 10 publications

Physical-Chemical processes and Patterns of Diversity of the chilean eastern boundary pelagic and benthic marine ecosystems: An overview

Physical-Chemical processes and Patterns of Diversity of the chilean eastern boundary pelagic and benthic marine ecosystems: An overview

Species diversity and distributions of pelagic calanoid copepods (Crustacea) from the Southern Ocean

Review of the taxonomy of the Calanidae (Copepoda) and the limits to the genus Calanus

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