The Developmental Stages of Centropages Typicus Kroyer (Copepoda, Calanoida) 1)

Grice, George D.; Lawson, Thomas J.

doi:10.1163/156854070x00806

Cited by 27 publications

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“…At higher magnifications, sexual differences have been observed in the structure of the fifth legs in CIV copepodids of B. hamata (Chapman & Burns 1976), B. opaqua, and C. tasmanica subattenuata (Fairbridge 1945a, 1945b. However, such differences are only apparent in Copepodid V for G. pectinatus, Centropages typicus (Lawson & Grice 1970), Calamoecia lucasi, and 3 other species of Boeckella (Chapman & Burns 1976). Obvious sexual differences in the structure of the fourth legs are also evident in Copepodid V of G. pectinatus.…”

Section: Discussionmentioning

confidence: 95%

“…Detailed illustrations of marine species are provided for Centropages hamatus, C. typicus, and C. furcatus by Oberg (1906), Lawson &Grice (1970), andBjornberg (1972) respectively, and an additional photographic treatment of C. hamatus is provided by Klein Breteler (1982). Koga (1960Koga ( , 1970 illustrated the nauplii only of C. abdominalis and C. tenuiremis (as C. yamadai).…”

Section: Discussionmentioning

confidence: 99%

“…Gladioferens copepodids can be distinguished from those of other genera through examination of legs 1. Comparative numbers of outer edge spines on the terminal segment of the exopod in copepodids I-V are as follows: Gladioferens 3,2,2,2,2; Calamoecia 2,1,1,1,1 (Fairbridge 1945b);and Centropages and Boeckella 4,3,3,3,3 (Fairbridge 1945a;Lawson & Grice 1970). Calamoecia also differs in retaining a 1-segmented endopod in leg 1 in copepodids II-V.…”

Section: Discussionmentioning

confidence: 99%

“…Fairbridge (1945b) found the urosome of the male stage IV of C. tasmanica subattenuata to be "indistinctly" 4-segmented, in contrast to the 3-segmented condition of other centropagids described. Gladioferens pectinatus resembles Centropages typicus (Lawson & Grice 1970) in that the sexes are recognisable at stage IV because of the more robust right antennule in the male. At higher magnifications, sexual differences have been observed in the structure of the fifth legs in CIV copepodids of B. hamata (Chapman & Burns 1976), B. opaqua, and C. tasmanica subattenuata (Fairbridge 1945a, 1945b.…”

Section: Discussionmentioning

confidence: 99%

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The developmental stages ofGladioferens pectinatus(Brady, 1899) (Copepoda: Calanoida)

McKinnon

Arnott²

1985

New Zealand Journal of Marine and Freshwater Research

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

The developmental stages ofGladioferens pectinatus(Brady, 1899) (Copepoda: Calanoida)

McKinnon

Arnott²

1985

New Zealand Journal of Marine and Freshwater Research

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“…The naupliar body of calanoid copepods like Pareuchaeta norvegica (Boeck 1872) and Chirideus armatus (Boeck 1872) does not elongate during development (Nicholls 1934;Matthews 1964). The naupliar body of centropagoideans does elongate posteriorly, but this posterior section is not distinctly separate, nor does it bear spine-like setae (e.g., see Lawson and Grice 1970;Grice 1971;Grice and Gibson 1982). A distinctly separate posterior section of the naupliar body with spine-like setae is present on calanoids like Eucalanus bungi bungi Giesbrecht 1893, Parvocalanus crassirostris (Dahl 1894), Neocalanus tonsus (Brady 1883), Calanoides macrocarinatus Brodsky 1957, and Calanus australis Brodsky 1959 (see Johnson 1937;Lawson and Grice 1973;Bradford et al 1988).…”

Section: Discussionmentioning

confidence: 99%

Naupliar development of Pseudocyclops sp. (Copepoda: Calanoida: Pseudocyclopidae): description of an unusual set of character states

Ferrari¹,

Dahms‬

Kangtia

et al. 2013

Zool. Stud.

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Background: Naupliar development is known for only one other species of the calanoid taxon Pseudocyclopidae as yet. Results: Six naupliar stages are described from an as yet unnamed population of Pseudocyclops cultured at the John G. Shedd Aquarium in Chicago, IL. The naupliar body is divided into a deep anterior section and a shallow posterior section, although the posterior section is poorly defined at NI. The posterior section bears a long, thin mediodorsal seta; short thick setae are added during molts to NIII~NV. The posterior section does not bear limb buds except for the caudal ramus and is presumed to represent the anal segment of the copepod. Throughout naupliar development, the antennule is five-segmented, a uniquely high number for a calanoid copepod. The distal segment is broadened, and three proximal segments are foreshortened during the molt to NIII, and remain so thereafter. Setae are added dorsally and ventrally to the distal segment during each molt. The naupliar arthrite is a simple, seta-like structure on the coxa of the antenna of all naupliar stages. On the exopod of the antenna, setae are added to the segment adjacent to the proximal one during molts to NIV~NVI in a manner consistent with the model of ramal patterning. The gnathobase is added to the coxa of the mandible during the molt to NIV, but its ventral attenuations are lost during the molt to NVI. The endopod of the mandible significantly changes between stages NIII and NIV; setae originate dorsally rather than ventrally on the proximal endopodal segment. These unique changes are reversed during the molt to NVI. Conclusions: Many of these changes have not been reported for any other calanoid. The morphological restoration at NVI is particularly noteworthy.

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Use of the confocal laser scanning microscope in studies on the developmental biology of marine crustaceans

Buttino

Ianora

Carotenuto

et al. 2003

Microscopy Res & Technique

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Confocal Laser Scanning Microscope techniques have been applied to study the developmental biology of marine copepods and decapod larvae. The lipophylic probes DiI and DiOC(6) were used to study both the external and internal morphology of these crustaceans, whereas the same DiOC(6) and the specific nuclear probe Hoechst 33342 were used to study embryonic development of copepods in vivo. To distinguish viable from non-viable copepod embryos, the vital dye dichlorodihydrofluorescein diacetate (H(2)DCFDA) was used. Major advantages and difficulties in the use of these non-invasive techniques in studies of the reproductive biology of marine crustaceans are discussed.

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The Developmental Stages of Centropages Typicus Kroyer (Copepoda, Calanoida) 1)

Cited by 27 publications

References 0 publications

The developmental stages ofGladioferens pectinatus(Brady, 1899) (Copepoda: Calanoida)

The developmental stages ofGladioferens pectinatus(Brady, 1899) (Copepoda: Calanoida)

Naupliar development of Pseudocyclops sp. (Copepoda: Calanoida: Pseudocyclopidae): description of an unusual set of character states

Use of the confocal laser scanning microscope in studies on the developmental biology of marine crustaceans

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