Occurrence of Chaceon Larvae in Plankton Samples from Slope Waters of the Northeastern Gulf of Mexico

Perry, Harriet M.; Waller, Richard; Stuck, Lidia M.; Stuck, Kenneth C.; Erdman, Robert B.; Blake, Norman J.; Lockhart, Frank; Lindberg, William J.

doi:10.18785/grr.0803.13

Cited by 3 publications

(4 citation statements)

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“…Red crab zoeae in this study had some yolk remaining at the time of hatching and we suspect that this also occurs in nature. Lipid yolk would contribute to the positive buoyancy of first-stage zoeae, thus aiding in the migration from depth to the euphotic zone where larval development occurs (Perry et al 1991). The first-stage zoeae probably metabolize yolk reserves during their ontogenetic migration, the duration of which is not known but which could be days to weeks.…”

Section: Resultsmentioning

confidence: 99%

“…Newly-extruded eggs have a diameter of up to 0.8 mm (Haefner 1977), and are among the largest known for marine brachyurans with planktonic development. Red crab larval development occurs in the upper 200 m of the water column in the Gulf of Mexico (Perry et al 1991), but larval biology is poorly understood because so few zoeae and megalopae have been sampled in the field. Hines (1988) suggested that the large eggs of Chaceon ( = Geryon) spp.…”

Section: Introductionmentioning

confidence: 99%

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Biochemical composition of the deep-sea red crab Chaceon quinquedens (Geryonidae): organic reserves of developing embryos and adults

Biesiot

Perry

1995

Marine Biology

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Deep-sea red crabs Chaceon quinquedens (Smith) were collected in traps at depths of 860 and 1043 m in the northern Gulf of Mexico. Ovigerous crabs were maintained in the laboratory and the developing embryos were sampled every 2 wk until hatching. Proximate analysis (lipid, protein, carbohydrate, and ash) of embryos was performed to determine patterns and rates of organic reserve utilization during embryogenesis. Midgut gland, gonads, and clutch (as appropriate) of adult crabs (males, non-ovigerous females and ovigerous females) were analyzed for the same components as the embryos. Red crab embryos exhibited different patterns of yolk deposition and subsequent depletion of yolk components during embryogenesis. There was a range of lipid to protein (L:P) ratios among the different clutches examined, indicating plasticity in the relative proportions of lipid and protein yolk. The energy used for embryogenesis was estimated by converting the amounts of lipid, protein and carbohydrate in the embryos to their caloric equivalents; final values, taken from 9 mo-old embryos whose siblings were hatching as zoeae, were subtracted from the initial values of sibling embryos sampled at the time of collection (2 to 3 mo old). The amount of energy consumed during embryogenesis in the laboratory was relatively constant (0.12 to 0.13 calegg-1). There was considerable variability among the concentrations of organic reserves in the midgut gland of adult crabs and in the ovaries of females. Variations in midgut gland L:P ratios and ovaries were related to the Communicated by N.H. Marcus, Tallahassee

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biochemical composition of the deep-sea red crab Chaceon quinquedens (Geryonidae): organic reserves of developing embryos and adults

Biesiot

Perry

1995

Marine Biology

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“…While its larval morphology has been described [33], information concerning the depths of its larval occurrence or its behaviour and dispersion is still scarce [34,35]. Concerning other geryonid species, information on this subject is also scarce, but it shows that the first larval stages are also epipelagic [34,36,37] and that early-stage larvae show physiological and behavioural mechanisms that allow them to ascend in the water column, while late stages descend into deep waters [8]. The size-depth relationship reported for juveniles and adults of the closely related species G. trispinosus (but see below) suggests that larval settlement takes place in deeper areas than those at which adult specimens occur [27].…”

Section: Introductionmentioning

confidence: 99%

Genetic Variability and Connectivity in the Western Mediterranean Populations of the Bathyal Crab Geryon longipes

et al. 2023

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Geryon longipes is a crab species that inhabits the muddy bottoms of the middle and lower slopes, as well as bathyal bottoms ranging from 400 to 2000 m in depth. To assess its molecular diversity, a fragment of 572 bp of the COI (Cytochrome Oxidase subunit I) mitochondrial gene was sequenced in eight Western Mediterranean locations. Within the studied area, two oceanographic fronts are present (Almeria-Oran Front and Ibiza Channel). From the 124 sequences obtained, only 7 distinct haplotypes were identified. The population distribution indicated three well-differentiated regions: the Alboran Sea, the Gulf of Vera and the Levantine/Catalan coasts. The molecular diversity was compared with that obtained in the same year for the same gene in Liocarcinus depurator, a crab species that is captured on the continental shelf and upper slope (40 to 500 m). The estimates of molecular diversity parameters for the COI gene fragment were rather similar between both species, but the number of haplotypes was higher for L. depurator. Finally, the obtained COI sequences of G. longipes were compared to those from other populations of the species distribution range, recovered from the DNA repository. Only one additional, different haplotype was reported (Sicily), whereas all the rest were common with those described in our study. Therefore, the COI gene fragment would indicate that all the sequences analysed in the Mediterranean and NE Atlantic belong to the same species, G. longipes.

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“…Distribution of red crabs in this study was not explained by bottom type, temperature, or interspecific competition, and it was suggested that observed distributional pattems of Chaceon in the eastem Gulf of Mexicomay betied toreproductivestrategies. Basedon the timing of larval release (Erdman and Blake 1988;Erdman et al 1991;Perry et al 1991) and the concentration of females in the northward portion of the study range, a causal role for the Loop Current in red crab population structure was proposed.…”

Section: Introductionmentioning

confidence: 99%

Estimates of Harvest Potential and Distribution of the Deep Sea Red Crab, Chaceon quinquedens, in the North Central Gulf of Mexico

Waller

Perry

Trigg

et al. 1995

GCR

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Harvest potential, relative abundance, and geographic and bathymetric distribution are discussed for the red crab, Chaceon quinquedens, in the northcentral Gulf of Mexico. Harvest potential is expressed as the number of trapable crabs present on fishing grounds defined as depths ranging from 677 m to 1043 m between 87.5O and 88.5OW longitude. Using various estimates of the effective fiihing area (€PA) of a trap, the number oftrapableredcrabsonthefishinggroundsrangedfrom 3 . 7~ 10sto 1 0 . 7~ lo6. Estimatesofcrabnumberssuggest there is a potential for commercial harvest in the northcentral Gulf of Mexico, east of the Mississippi River.However, fishery development must take into consideration the preponderance of females on the defined fishing grounds (MF ratio= 1:2.1) and the high incidence of ovigerous females (-20%) during much of theyear. Females generally dominated at all depth strata, but the proportion of males to females increased with depth. Reduced numbers of red crabs were collected off the western Louisiana coast and a shift in depth distribution was found. Minimum upper depth limit for red crabs west of the Mississippi River was 860 m as compared to 677 m east of the River. The known range of C. femeri is extended to 92O12W longitude.

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Occurrence of Chaceon Larvae in Plankton Samples from Slope Waters of the Northeastern Gulf of Mexico

Abstract: Geographic, seasonal, and bathymetric distributions of Chaceon larvae are described for the northeastem Gulf of Mexico.

Cited by 3 publications

References 3 publications

Biochemical composition of the deep-sea red crab Chaceon quinquedens (Geryonidae): organic reserves of developing embryos and adults

Biochemical composition of the deep-sea red crab Chaceon quinquedens (Geryonidae): organic reserves of developing embryos and adults

Genetic Variability and Connectivity in the Western Mediterranean Populations of the Bathyal Crab Geryon longipes

Estimates of Harvest Potential and Distribution of the Deep Sea Red Crab, Chaceon quinquedens, in the North Central Gulf of Mexico

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