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Preliminary survey of a nemertean crab egg predator, Carcinonemertes, on its host crab, Callinectesarcuatus (Decapoda, Portunidae) from Golfo de Nicoya, Pacific Costa Rica.

Okazaki RK, Wehrtmann IS - Zookeys (2014)

Bottom Line: No nemerteans were observed either in the 19 Callinectesarcuatus from Golfo Dulce (southern Pacific coast) and the 10 Portunusasper from Herradura-Jaco (central Pacific coast).This nemertean is a member of the genus Carcinonemertes, which has been reported from the Caribbean coast of Panama.However, the encountered Carcinonemertes sp. is the first published finding and report from Costa Rica and Pacific Central America.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Zoology, Weber State University, Ogden, Utah, 84408-2505 USA.

ABSTRACT
The possible presence of egg predators in brood masses of portunid crabs from Pacific Central America has not been studied yet. This survey reports the finding of a nemertean crab egg predator on the portunid crab, Callinectesarcuatus, from the Golfo de Nicoya, Pacific Costa Rica. Nemerteans were found in the egg masses of 26 out of the 74 crabs for a prevalence of 35%. The intensity (mean number of worms/ infected crab) was estimated to be 18 with a variance of 1-123 worms/infected crab. No nemerteans were observed either in the 19 Callinectesarcuatus from Golfo Dulce (southern Pacific coast) and the 10 Portunusasper from Herradura-Jaco (central Pacific coast). This nemertean is a member of the genus Carcinonemertes, which has been reported from the Caribbean coast of Panama. However, the encountered Carcinonemertes sp. is the first published finding and report from Costa Rica and Pacific Central America.

No MeSH data available.


Related in: MedlinePlus

A Severe crab egg mortalities (encircled) at lateral base of a pleopod from an ovigerous female Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica. B Nemertean worms (encircled) between the lateral middle and lateral base of a pleopod from an ovigerous female of Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica.
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Figure 4: A Severe crab egg mortalities (encircled) at lateral base of a pleopod from an ovigerous female Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica. B Nemertean worms (encircled) between the lateral middle and lateral base of a pleopod from an ovigerous female of Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica.

Mentions: Worms were found throughout the egg mass, but more often encountered at the base of pleopods. The pleopodal base of one crab showed pronounced egg mortalities (Fig. 4A) and an accumulation of worms in the mid pleopodal regions (Fig. 4B).


Preliminary survey of a nemertean crab egg predator, Carcinonemertes, on its host crab, Callinectesarcuatus (Decapoda, Portunidae) from Golfo de Nicoya, Pacific Costa Rica.

Okazaki RK, Wehrtmann IS - Zookeys (2014)

A Severe crab egg mortalities (encircled) at lateral base of a pleopod from an ovigerous female Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica. B Nemertean worms (encircled) between the lateral middle and lateral base of a pleopod from an ovigerous female of Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4283382&req=5

Figure 4: A Severe crab egg mortalities (encircled) at lateral base of a pleopod from an ovigerous female Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica. B Nemertean worms (encircled) between the lateral middle and lateral base of a pleopod from an ovigerous female of Callinectesarcuatus, Golfo de Nicoya, Pacific Costa Rica.
Mentions: Worms were found throughout the egg mass, but more often encountered at the base of pleopods. The pleopodal base of one crab showed pronounced egg mortalities (Fig. 4A) and an accumulation of worms in the mid pleopodal regions (Fig. 4B).

Bottom Line: No nemerteans were observed either in the 19 Callinectesarcuatus from Golfo Dulce (southern Pacific coast) and the 10 Portunusasper from Herradura-Jaco (central Pacific coast).This nemertean is a member of the genus Carcinonemertes, which has been reported from the Caribbean coast of Panama.However, the encountered Carcinonemertes sp. is the first published finding and report from Costa Rica and Pacific Central America.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Zoology, Weber State University, Ogden, Utah, 84408-2505 USA.

ABSTRACT
The possible presence of egg predators in brood masses of portunid crabs from Pacific Central America has not been studied yet. This survey reports the finding of a nemertean crab egg predator on the portunid crab, Callinectesarcuatus, from the Golfo de Nicoya, Pacific Costa Rica. Nemerteans were found in the egg masses of 26 out of the 74 crabs for a prevalence of 35%. The intensity (mean number of worms/ infected crab) was estimated to be 18 with a variance of 1-123 worms/infected crab. No nemerteans were observed either in the 19 Callinectesarcuatus from Golfo Dulce (southern Pacific coast) and the 10 Portunusasper from Herradura-Jaco (central Pacific coast). This nemertean is a member of the genus Carcinonemertes, which has been reported from the Caribbean coast of Panama. However, the encountered Carcinonemertes sp. is the first published finding and report from Costa Rica and Pacific Central America.

No MeSH data available.


Related in: MedlinePlus