scholarly journals First record of Carcinonemertes conanobrieni Simpson, Ambrosio & Baeza, 2017 (Nemertea, Carcinonemertidae), an egg predator of the Caribbean spiny lobster Panulirus argus (Latreille, 1804), on the Caribbean Coast of Colombia

Check List ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 425-429
Author(s):  
Jaime A. Gonzalez-Cueto ◽  
Sigmer Quiroga
Keyword(s):  
New Record ◽  
Spiny Lobster ◽  
Florida Keys ◽  
First Record ◽  
Panulirus Argus ◽  
Egg Mass ◽  
Caribbean Coast ◽  
Egg Predator ◽  
The Caribbean ◽  
First Time

Carcinonemertes conanobrieni Simpson, Ambrosio & Baeza, 2017, an egg predator of the spiny lobster Panulirus argus (Latreille, 1804), is recorded for the first time in Colombian waters and the Caribbean. Worms were isolated from an egg mass of a lobster caught at the Gulf of Salamanca, Magdalena. Little is known about the distribution of this species and currently this record from the Caribbean Coast of Colombia is the only one outside of the Florida Keys, USA. The new record suggests that this parasite might be present in the entire Caribbean Sea. 

scholarly journals Directly ageing the Caribbean spiny lobster, Panulirus argus with validated band counts from gastric mill ossicles

2018 ◽  
Vol 76 (2) ◽  
pp. 442-451 ◽  
Author(s):  
Gaya Gnanalingam ◽  
Mark J Butler ◽  
Thomas R Matthews ◽  
Emily Hutchinson ◽  
Raouf Kilada
Keyword(s):  
Spiny Lobster ◽  
Age Determination ◽  
Florida Keys ◽  
Panulirus Argus ◽  
Gastric Mill ◽  
Coefficients Of Variation ◽  
The Caribbean ◽  
First Time ◽  
Reader Experience

Abstract In crustaceans, ecdysis was long believed to result in the loss and replacement of all calcified structures, precluding the use of conventional ageing methods. However, the discovery of bands in the gastric ossicles of several crustaceans with some correlation with age suggests that direct age estimation may be possible. We applied this method to a tropical spiny lobster, Panulirus argus, one of the most iconic and economically valuable species in the Caribbean. The presence of growth bands was investigated using wild lobsters of unknown age and was validated with captive reared lobsters of known age (1.5–10 years) from the Florida Keys, Florida (USA). Bands were consistently identified in ptero- and zygo-cardiac ossicles of the gastric mill and did not appear to be associated with moulting. Validation with known age animals confirms that bands form annually. Counts between independent readers were reproducible with coefficients of variation ranging from 11% to 26% depending on reader experience and the structure used. This study demonstrates, for the first time, that direct age determination of P. argus is possible.

scholarly journals Discovery of Megachile (Pseudomegachile) lanata (Fabricius, 1775) (Hymenoptera, Megachilidae) in Colombia, an adventive bee species from the Old World

Check List ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Victor H. Gonzalez ◽  
Diego A. Guevara ◽  
Joanna Jaramillo-Silva ◽  
Rodulfo Ospina
Keyword(s):  
Apis Mellifera ◽  
Southeast Asia ◽  
Honey Bee ◽  
First Record ◽  
Diagnostic Features ◽  
Caribbean Coast ◽  
Old World ◽  
The Caribbean ◽  
First Time

We record for the first time for Colombia Megachile (Pseudomegachile) lanata (Fabricius, 1775), a bee species from Southeast Asia. This is the first record of an adventive bee species for the country besides Apis mellifera Linnaeus, 1758, the European honey bee. Megachile lanata appears to have arrived to the Caribbean coast of Colombia nearly half a century ago, reaching the Orinoquia region recently. We provide comments on diagnostic features to facilitate the recognition of this bee species and discuss its possible establishment in Colombia. 

Two species of Carcinonemertes Coe, 1902 (Nemertea: Carcinonemertidae) infesting the Caribbean spiny lobster, Panulirus argus (Latreille, 1804) (Decapoda: Achelata: Palinuridae), in Saint Kitts, West Indies

2020 ◽  
Vol 40 (6) ◽  
pp. 933-942 ◽  
Author(s):  
Nicole A M Atherley ◽  
Michelle M Dennis ◽  
Mark A Freeman
Keyword(s):  
Spiny Lobster ◽  
Caribbean Sea ◽  
Distinct Species ◽  
Molecular Techniques ◽  
Panulirus Argus ◽  
Egg Mass ◽  
Western Atlantic ◽  
First Report ◽  
The Caribbean ◽  
Eastern Caribbean

Abstract The Caribbean spiny lobster, Panulirus argus (Latreille, 1804), is an important resource in the Western Atlantic Ocean, Caribbean Sea, and Gulf of Mexico. A nemertean egg predator of P. argus, Carcinonemertes conanobrieniSimpson, Ambrosio & Baeza, 2017, was recorded in Florida in 2017 and Colombia in 2018. This study sought to investigate the presence of C. conanobrieni in P. argus in Saint Kitts and Nevis, eastern Caribbean Sea. Nemerteans were observed in the brood masses of P. argus. Molecular techniques confirmed its presence in the P. argus population on Saint Kitts. Egg, juvenile, and adult stages of C. conanobrieni and of an undescribed Carcinonemertes sp. were found in the brood masses of 27 of 31 (87%) ovigerous P. argus. Differences in the shape of the nemertean egg masses (string versus spherical arrangement) were confirmed as two distinct species of Carcinonemertes Coe, 1902 using molecular analyses. The juvenile stage of the undescribed Carcinonemertes sp. was detected in the gills of 72 of 320 (23%) of the P. argus individuals from Saint Kitts. The prevalence of branchial nemertean infestation was not significantly different among male and female P. argus. Female lobsters with ovaries in early stages of gonadal maturation were more likely to have branchial nemerteans relative to those with ovaries in late stages of maturation, suggestive of nemertean migration from gills to egg mass once the host oviposits. This is the first report of C. conanobrieni in the Caribbean spiny lobster from the eastern Caribbean, which is approximately 1,300 miles from Florida and 1,000 miles from Colombia. This is also the first report of an undescribed nemertean worm in P. argus. The high prevalence of Carcinonemertes spp. in P. argus raises concern for the extent to which these egg predators may be impacting P. argus in Saint Kitts, an important fishery on the island.

PaV1 infection in the Florida spiny lobster (Panulirus argus) fishery and its effects on trap function and disease transmission

2012 ◽  
Vol 69 (1) ◽  
pp. 136-144 ◽  
Author(s):  
Donald C. Behringer ◽  
Mark J. Butler ◽  
Jessica Moss ◽  
Jeffrey D. Shields
Keyword(s):  
Disease Transmission ◽  
Spiny Lobster ◽  
Florida Keys ◽  
Unintended Consequences ◽  
Panulirus Argus ◽  
Social Nature ◽  
Pathogenic Virus ◽  
Lobster Fishery ◽  
The Caribbean ◽  
Polymerase Chain

The Caribbean spiny lobster (Panulirus argus) supports the most economically valuable fishery in the Caribbean. In Florida, USA, the majority of the catch is landed in traps “baited” with live, sublegal-sized lobsters that attract other lobsters due to their social nature. This species is also commonly infected by the pathogenic virus Panulirus argus Virus 1 (PaV1). Here we describe a polymerase chain reaction (PCR) based assessment of the prevalence of PaV1 in the lobster fishery from the Florida Keys. We tested the effect of PaV1-infected lobsters in traps on catch and on transmission to other trapped, uninfected lobsters. We found that 11% of the lobsters caught in commercial traps were positive for the virus by PCR, but none of these animals showed visible signs of disease. We also tested whether healthy lobsters avoid diseased lobsters in traps. Traps into which we introduced an infected lobster caught significantly fewer lobsters than traps containing an uninfected lobster. Moreover, uninfected lobsters confined in traps with infected lobsters acquired significantly more PaV1 infections than those confined with uninfected lobsters. This study demonstrates the indirect effects that pathogens can have on fisheries and the unintended consequences of certain fishery practices on the epidemiology of a marine pathogen.

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