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

Bradford, Janet M.

doi:10.1007/bf00026295

Cited by 26 publications

(11 citation statements)

References 21 publications

(35 reference statements)

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“…For ease examination and distinguish between recently living from dead sample of 10 mL were stained with 10 mL Rose Bengal for 24 hours g of Rose Bengal to 1liter of distilled water). This method is commonly used n has relied on special and general keys and guides for plankton and benthos of the Indian Ocean and the Indo-Pacific region [20,21,22,23,24]; using dissecting binocular zoom 40X, model Wagtech,…”

Section: Methodsmentioning

confidence: 99%

Presence and Composition of Planktons’ Organisms in Ships Ballast Water Discharged in Al-Mukalla Harbor, Gulf of Aden

Aideed¹,

Habshi

Alamoudi³

2018

AJFAR

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This was the first study in Yemen, and Gulf of Aden aims to investigate the marine organisms in ballast water and sediments, and gives baseline information defines the zooplankton, phytoplankton and invertebrates, associated fuel tankers. Samples from Ballast water were taken from three ships that arrived at Mukalla Port, the Hadhramout coast from ports of Hamriyah port, U.A.E; ports of Taheri, Iran; and Bosaso Somalia (MT: Gulf Petroleum III, MT: Prime Royal, and M T: Breu) respectively. The marine organisms in samples were presented by three taxonomic groups, phytoplankton, zooplankton and benthos. Fifty-eight taxa were identified within this study; which consisted of 17 phytoplankton, 18 zooplanktons and 23 Benthos. The highest density of phytoplankton was 21 Ind/L, with the occurrence of 17 species found in ballast water, while 22 Ind/50cc of 2 species in sediment samples of the tanker Beru, and fewer densities were in Gulf Petroleum and Prim Royal. The most common phytoplankton observed were Coscinodiscus granii, Coscinodiscus jonesianus and Thalassiosira eccentric. The low Zooplankton density was 13 Ind/L with an occurrence of 18 species found in Prim Royal tanker. Copepods were the most dominant zooplankton among the three tankers. Paracalanus parvus had the highest value of dominance followed by Calanopia parathompsoni, Acrocalanus gracilis and Paracalanus denudatus had the lowest occurrence over three tankers. Seven taxa of Dinoflagellates were identified; two of them Ceratium fusus and polykrikos sp. are known to be harmful species.

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Section: Methodsmentioning

confidence: 99%

Presence and Composition of Planktons’ Organisms in Ships Ballast Water Discharged in Al-Mukalla Harbor, Gulf of Aden

Aideed¹,

Habshi

Alamoudi³

2018

AJFAR

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“…All eight genera recognized by Bradford (1988) are represented by species whose morphology is known in great detail, seven of which are the type species of their respective genera [Canthocalanus pauper (Giesbrecht, 1888) Giesbrecht, 1902, Calanus propinquus Brady, 1883) (see Bradford-Grieve 1994). Neocalanus contains two groups (Bradford-Grieve 1994) represented here by Neocalanus gracilis (Dana, 1949) and Neocalanus tonsus (Brady, 1883).…”

Section: Ingroup Taxamentioning

confidence: 99%

“…Brodsky 1972;Bradford and Jillett 1974;Bradford 1988;Taniguchi et al 2004). The morphology of taxa within the Calanidae was extensively examined in the 1970s (Brodsky 1972) and a provisional phylogeny was proposed.…”

Section: Introductionmentioning

confidence: 97%

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Phylogenetic relationships among genera in the Calanidae (Crustacea: Copepoda) based on morphology

Bradford‐Grieve

Ahyong

2010

Journal of Natural History

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Cladistic analysis of Calanidae recovered two major clades: a tropical epipelagic clade composed of species without ontogenetic vertical migration (Canthocalanus + Cosmocalanus + Nannocalanus + Undinula); and a clade of ontogenetically migrating genera (Neocalanus + Calanoides + Calanus + Mesocalanus). The latter clade is least well supported although its Calanoides and Neocalanus lineages are well supported. Morphology-based topologies are largely congruent with published molecular trees, differing chiefly in the positions of Mesocalanus and Calanus. Independent homoplasious trends in character states in the male leg 5 include: reduction in segmentation and number of setae, increasing asymmetry as well as the probable retention of larval characteristics. The monophyly of Calanoides, Neocalanus and Calanus is well supported. It is postulated that Calanidae radiated during the mid to late Triassic from a bathypelagic megacalanid which was adapted to low oxygen conditions. High latitude locations may have been the first epipelagic environments to be recolonized.

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“…recognized by classical systematists on the basis of morphological criteria consist of reproductively isolated taxa. As a result, it is increasingly being recognized by zooplankton systematists (Einsle, 1980(Einsle, , 1988Frey, 1982;Bradford, 1988) that it is difficult to delimit species boundaries using morphological criteria alone.…”

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confidence: 99%

A genetic determination of cryptic species (Copepoda: Calanoida) and their postglacial biogeography in North America

Boileau

1991

Zoological Journal of the Linnean Society

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Allozyme electrophoresis of Hesperodiaptomus clrrliru3 (Marsh) sensu lato at subarctic Churchill, Canada revealed significant deviations from random mating in several populations, as shown by the complete absence of certain heterozygous types. A broad geographic survey of 20 enzyme loci in 1077 individuals from 27 ponds at 1 1 arctic and alpine sites west of Hudson Bay drmonstratcd that there were three genetically distinct types. Morphological analysis of genetically classified populations uncovered consistent morphological differences that had been ignored previously. These morphological characteristics were used to rrclassify preserved museum and private specimens from additional sites from the entire North American distribution of H . arclitus sensu lato. A detailed study of two of the distinct types co-occurring at Churchill showed reproduction timing and habitat differences consistent with reproductive isolation. I concluded that there are three species and each have different distributions. Most regions examined must have been repopulated by dispersal from glacial refugia after deglaciation. The nominal species is apparently restricted to westc'rn arctic localities in the vicinity of the Alaskan refugium while the other two putative taxa have dispersed widely into previously glaciated regions.

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

Cited by 26 publications

References 21 publications

Presence and Composition of Planktons’ Organisms in Ships Ballast Water Discharged in Al-Mukalla Harbor, Gulf of Aden

Presence and Composition of Planktons’ Organisms in Ships Ballast Water Discharged in Al-Mukalla Harbor, Gulf of Aden

Phylogenetic relationships among genera in the Calanidae (Crustacea: Copepoda) based on morphology

A genetic determination of cryptic species (Copepoda: Calanoida) and their postglacial biogeography in North America

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