Post-mortem examination of the Caribbean spiny lobster (Panulirus argus, Latreille 1804) and pathology in a fishery of the Lesser Antilles

Atherley, Nicole A. M.; Freeman, Mark; Dennis, Michelle M.

doi:10.1016/j.jip.2020.107453

Cited by 8 publications

(12 citation statements)

References 43 publications

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“…In a study outlining complete postmortem and histological assessment of more than 300 Caribbean spiny lobsters caught by fisheries, there were no detailed findings of Vibrio harveyi in apparently healthy wild lobsters. 3 This suggests that research is lacking, and future research investment should focus on the risk V. harveyi poses to wild and captive populations of P. argus , as well as risks to other wild and cultured aquatic animal populations.…”

Section: Discussionmentioning

confidence: 99%

Vibrio harveyi in a Caribbean spiny lobster (Panulirus argus) with hepatopancreas necrosis

et al. 2023

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A Caribbean spiny lobster, Panulirus argus, was submitted for necropsy after a number of species-specific fatalities in a public aquarium. The hemolymph was opaque and did not clot and the hepatopancreas had multiple foci of necrosis centered on gram-negative bacteria. Pure cultures of Vibrio harveyi were isolated, identified initially by matrix laser desorption ionization-time of flight mass spectrometry, and confirmed by multilocus sequencing of the gyrB, recA, rpoA, and pyrH genes. As Caribbean spiny lobsters continue to be used for consumption and displayed in public aquariums, chronicling potential pathogens is warranted to inform differential diagnoses and to develop management strategies to reduce incidence of infectious disease in captive populations.

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Section: Discussionmentioning

confidence: 99%

Vibrio harveyi in a Caribbean spiny lobster (Panulirus argus) with hepatopancreas necrosis

et al. 2023

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“…Local and global stressors, including pollution, habitat deterioration, and habitat destruction, have been hypothesized to contribute to declines in P. argus recruitment and landings in the greater Caribbean Sea [ 6 – 8 ]. Furthermore, diseases including but not limited to microsporidiosis, Panulirus argus Virus 1 (PaV1), tail fan necrosis, and trematode parasites found in this species may cause further complications for P. argus population health [ 9 ]. It is critical to understand the impact of the aforementioned disease agents including emerging pathogens, such as nemertean worms, on individual- and population-level reproductive parameters of P .…”

Section: Introductionmentioning

confidence: 99%

“…The nemertean worm Carcinonemertes conanobrieni has been recorded with variable prevalence in female P. argus populations across different localities of the Caribbean [ 9 , 10 , 12 , 13 , 24 ]. While initially discovered in the Florida Keys, the growing detection of C. conanobrieni among the brood masses of female P. argus brings into question how long this worm has been on the host, undetected, in previous years.…”

Section: Introductionmentioning

confidence: 99%

The effect of the egg-predator Carcinonemertes conanobrieni on the reproductive performance of the Caribbean spiny lobster Panulirus argus

Henríquez¹,

Stephens²,

Gonzalez-Cueto³

et al. 2023

BMC Zool

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Background The Caribbean spiny lobster Panulirus argus is heavily fished throughout its Greater Caribbean and Gulf of Mexico distribution, suggesting a heightened susceptibility to a fisheries collapse. In 2017, a nemertean worm, Carcinonemertes conanobrieni was described from ovigerous females of P. argus in Florida, USA. A year later, the presence of the same egg predator was recorded along the southern Caribbean coast (Colombia). The effect of this egg predator on the reproductive performance, including fecundity, embryo mortality, and reproductive output, of its host is unknown. This study tested whether C. conanobrieni affects embryo mortality, fecundity, and reproductive output in brooding females of P. argus. Results Artisan fishers caught 90 ovigerous lobsters near Pueblo Viejo, Magdalena, Colombia. Each ovigerous female was examined for the presence/absence of the egg predator. Lobster egg mortality (%), fecundity (nº eggs female−1), and reproductive output (%) were estimated. Prevalence of C. conanobrieni in the studied population was 87.78%. The mean intensity of C. conanobrieni (all life stages) in the population was 11.68 (± 1.98) egg predators per brood mass sample. Infected females brooding late-stage embryos exhibited lower fecundity, lower reproductive performance values, and higher embryo mortality compared to infected females brooding early-stage embryos. Embryo stage and worm infection level negatively impacted fecundity and reproductive output. Worm infection level and the number of adult nemertean worms also negatively affected embryo mortality. Conclusions These results demonstrate an adverse effect of C. conanobrieni on the reproductive performance of P. argus. The interactive impact of this egg predator, natural stressors, and anthropogenic stressors on individual P. argus reproductive performance could facilitate losses at large-scale fisheries levels.

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“…Sin embargo, es considerada como una especie vulnerable en Colombia (Gracia y Díaz, 2002;Minambiente, 2017), debido a la sobreexplotación de su stock pesquero y a la destrucción sistemática de su hábitat. Adicionalmente, existen factores naturales que han contribuido a la disminución de las poblaciones de P. argus, tales como enfermedades (v. g. Panulirus argus virus 1-PaV1) (Shields y Behringer, 2004) y parásitos (v. g. nemertinos) (Atherley et al, 2020a). Específicamente el parásito Carcinonemertes conanobrieni (Simpson, Ambrosio y Baeza, 2017) es un nemertino que se alimenta de los embriones que las hembras ovadas cargan en sus pleópodos, ocasionando efectos negativos sobre el rendimiento reproductivo de la langosta (Baeza et al, 2016;Simpson et al, 2017).…”

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“…However, it is considered as a vulnerable species in Colombia (Gracia and Díaz, 2002;Minambiente, 2017), due to the overexploitation of its fishing stock and the systematic destruction of its habitat. Additionally, there are natural factors that have contributed to the decline of P. argus populations, such as diseases (e.g., Panulirus argus virus 1-PaV1) (Shields y Behringer, 2004) and parasites (e.g., nemerteans) (Atherley et al, 2020a). Specifically, the parasite Carcinonemertes conanobrieni Simpson, Ambrosio and Baeza, 2017 is a nemertean that feeds on the embryos that ovigerous females carry in their pleopods, causing negative effects on the reproductive performance of the lobster (Baeza et al, 2016;Simpson et al, 2017).…”

mentioning

confidence: 99%

Gen Citocromo Oxidasa I confirma la presencia del nemertino Carcinonemertes conanobrieni, parásito de la langosta espinosa del Caribe (Panulirus argus) en Colombia

Henríquez¹,

Gonzalez-Cueto²,

Colorado³

2022

Bol. Investig. Mar. Costeras

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Morphological identifications complemented with molecular analysis are important for the delimitation of cryptic species. This document contains annotations on the molecular identification of the parasitic nemertine Carcinonemertes conanobrieni in the Caribbean spiny lobsters Panulirus argus. The collected nemerteans were found parasitizing ovigerous lobsters from the Gulf of Salamanca (Puebloviejo), Colombia. DNA was extracted from a specimen and a fragment of the mitochondrial gene Cytochrome Oxidase I (COI) was amplified using Folmer’s universal primers, the sequence was edited with ProSeq 3.5 and aligned with all the C. conanobrienisequences available in GenBank. A sequence of 488 base pairs corresponding to the section of the genetic barcode of the COI gene was obtained, the matrix of genetic distances showed little variation when comparing the obtained sequence with those available in the GenBank database. These results confirm the presence of this nemertean in the Panulirus argus lobsters in Colombia providing valuable information for the correct identification and detection of this parasitic species in the country, thus facilitating its monitoring

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Post-mortem examination of the Caribbean spiny lobster (Panulirus argus, Latreille 1804) and pathology in a fishery of the Lesser Antilles

Cited by 8 publications

References 43 publications

Vibrio harveyi in a Caribbean spiny lobster (Panulirus argus) with hepatopancreas necrosis

Vibrio harveyi in a Caribbean spiny lobster (Panulirus argus) with hepatopancreas necrosis

The effect of the egg-predator Carcinonemertes conanobrieni on the reproductive performance of the Caribbean spiny lobster Panulirus argus

Gen Citocromo Oxidasa I confirma la presencia del nemertino Carcinonemertes conanobrieni, parásito de la langosta espinosa del Caribe (Panulirus argus) en Colombia

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