Gaussia princeps (Scott) (Copepoda, Calanoida, Metridinidae) from the Indo-Pacific, with Notes on the Zoogeography of the Genus

Soh, Ho Young; Ohtsuka, Susumu; Imabashi, Hiromichi; Sawamoto, Shozo

doi:10.12782/specdiv.3.169

Cited by 5 publications

(24 citation statements)

References 13 publications

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“…The marine mesopelagic copepod genus Gaussia Wolfenden, 1905, which belongs to the calanoid family Metridinidae Sars, 1902, was a monotypic taxon for decades. Currently, this genus contains four bioluminescent species, which have different distributional patterns in the world's ocean (Vervoort 1965;Björnberg & Campaner 1988, 1990Soh et al 1998;Defaye 1998). The most widely distributed species is G. princeps (Scott, 1894), known from temperate and tropical latitudes of all major oceans (Vervoort 1965;Soh et al 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Currently, this genus contains four bioluminescent species, which have different distributional patterns in the world's ocean (Vervoort 1965;Björnberg & Campaner 1988, 1990Soh et al 1998;Defaye 1998). The most widely distributed species is G. princeps (Scott, 1894), known from temperate and tropical latitudes of all major oceans (Vervoort 1965;Soh et al 1998). The original description of this widespread species was based on a single male from the Gulf of Guinea, in the eastern Atlantic (Scott 1894); females have been briefly illustrated from different geographical areas (Owre & Foyo 1967;Saraswathy 1973b;Björnberg & Campaner 1988).…”

Section: Introductionmentioning

confidence: 99%

“…The original description of this widespread species was based on a single male from the Gulf of Guinea, in the eastern Atlantic (Scott 1894); females have been briefly illustrated from different geographical areas (Owre & Foyo 1967;Saraswathy 1973b;Björnberg & Campaner 1988). The morphological differences distinguishing the known species of Gaussia are subtle but consistent (Defaye 1998;Soh et al 1998).…”

Section: Introductionmentioning

confidence: 99%

“…intermedia Defaye, 1998; the male of G. asymmetrica Björnberg & Campaner, 1988 remains unknown. A complete redescription of G. princeps, published by Soh et al (1998), inclued adult males and females from the Indian Ocean and compared the male to the holotype from the Gulf of Guinea. There are no detailed illustrations or descriptions for male specimens of G. princeps from the western Atlantic.…”

Section: Introductionmentioning

confidence: 99%

“…During a survey of the oceanic zooplankton of the western Caribbean Sea, a single male specimen of G. princeps was collected. This specimen is described and illustrated in full, including an analysis of the integumental pore pattern on all the appendages; it is compared with the existing descriptions and illustrations of this species but particularly with the redescription by Soh et al (1998) in order to explore intraspecific differences between specimens from the Indo-Pacific,the eastern Atlantic, and the Caribbean. The variability of the pore pattern on the swimming legs, the right male antennule, and the male fifth legs is compared among the species of Gaussia for which this information is available.…”

Section: Introductionmentioning

confidence: 99%

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The mesopelagic copepod Gaussia princeps (Scott) (Calanoida: Metridinidae) from the Western Caribbean with notes on integumental pore patterns

Suárez‐Morales

2007

Zootaxa

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The mesopelagic calanoid copepod Gaussia princeps (Scott, 1894) was originally described from the eastern Atlantic. It has been recorded in tropical and subtropical latitudes of the world, but has been reported only occasionally from the northwestern tropical Atlantic (NWTA). Comparative morphological studies, particularly of males, have not included specimens from the NWTA. Based on a collection of zooplankton from the Caribbean Sea, an adult male of G. princeps is illustrated in detail and its morphology compared with other sources in order to explore intraand interoceanic differences within the species. The proportions and structure of the Caribbean specimens agree with the description of specimens from the eastern Atlantic and the Indian Ocean, except in details of the ornamentation of some appendages. Additional intraand interspecific differences were found in the number of integumental pores on the male antennules, swimming legs 1–4, and fifth legs. Integumental pores are consistently fewer in the Caribbean male than in the IndoPacific and eastern Atlantic counterparts, but G. princeps remains as the species of the genus with the largest number of pores on the swimming legs, a potential species-defining character within the genus. The Caribbean record, at 25–50 m deep, is the shallowest occurrence known for this mesopelagic form in the NWTA and represents the first finding of the genus and species in the western Caribbean and in Mexican waters.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The mesopelagic copepod Gaussia princeps (Scott) (Calanoida: Metridinidae) from the Western Caribbean with notes on integumental pore patterns

Suárez‐Morales

2007

Zootaxa

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Divergent patterns of zooplankton connectivity in the epipelagic and mesopelagic zones of the eastern North Pacific

Matthews,

Blanco‐Bercial

2023

Ecology and Evolution

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Due to historical under‐sampling of the deep ocean, the distributional ranges of mesopelagic zooplankton are not well documented, leading to uncertainty about the mechanisms that shape midwater zooplankton community composition. Using a combination of DNA metabarcoding (18S‐V4 and mtCOI) and trait‐based analysis, we characterized zooplankton diversity and community composition in the upper 1000 m of the northeast Pacific Ocean. We tested whether the North Pacific Transition Zone is a biogeographic boundary region for mesopelagic zooplankton. We also tested whether zooplankton taxa occupying different vertical habitats and exhibiting different ecological traits differed in the ranges of temperature, Chl‐a, and dissolved oxygen conditions inhabited. The depth of the maximum taxonomic richness deepened with increasing latitude in the North Pacific. Community similarity in the mesopelagic zone also increased in comparison with the epipelagic zone, and no evidence was found for a biogeographic boundary between previously delineated mesopelagic biogeochemical provinces. Epipelagic zooplankton exhibited broader temperature and Chl‐a ranges than mesopelagic taxa. Within the epipelagic, taxa with broader temperature and Chl‐a ranges also had broader distributional ranges. However, mesopelagic taxa were distributed across wider dissolved oxygen ranges, and within the mesopelagic, only oxygen ranges covaried with distributional ranges. Environmental and distributional ranges also varied among traits, both for epipelagic taxa and mesopelagic taxa. The strongest differences in both environmental and distributional ranges were observed for taxa with or without diel vertical migration behavior. Our results suggest that species traits can influence the differential effects of physical dispersal and environmental selection in shaping biogeographic distributions.

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Soh¹,

Suh²,

Yu³

et al. 2001

Hydrobiologia

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Gaussia princeps (Scott) (Copepoda, Calanoida, Metridinidae) from the Indo-Pacific, with Notes on the Zoogeography of the Genus

Cited by 5 publications

References 13 publications

The mesopelagic copepod Gaussia princeps (Scott) (Calanoida: Metridinidae) from the Western Caribbean with notes on integumental pore patterns

The mesopelagic copepod Gaussia princeps (Scott) (Calanoida: Metridinidae) from the Western Caribbean with notes on integumental pore patterns

Divergent patterns of zooplankton connectivity in the epipelagic and mesopelagic zones of the eastern North Pacific

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