Larval development of Lepidophthalmus siriboia Felder & Rodrigues, 1993 (Decapoda: Thalassinidea) from the Amazon region, reared in the laboratory

Abstract

The complete larval development of the ghost shrimp Lepidophthalmus siriboia Felder & Rodrigues, 1993 was described and illustrated in detail from specimens reared in the laboratory. Ovigerous females were collected at Canela Island in the northeastern region of the State of Pará. The larvae hatch as a prezoea, in which they persist for less than 3 hours. The larval development consists of three zoeal stages and a megalopa. The zoeal development averaged from 69 to 111 hours. The period in the megalopa stage was about 185 hours (about 8 days). The percentage of individuals succeeding in molt into juvenile stage was 91,8%. The first juvenile stage was reached 254 hours (about 10 days) after hatching. Morphological comparisons and their relationship with larvae of congeneric species are briefly discussed.

Developmental morphology of mouthparts and foregut of the larvae and postlarvae of Lepidophthalmus siriboia Felder & Rodrigues, 1993 (Decapoda: Callianassidae)

“…The morphological features of external mouthparts and foregut of L. siriboia were examined from samples of larvae and post larvae obtained from a larval culture for complete larval description carried out in the State of Pará in 2004 by Abrunhosa et al (2005).…”

The complete larval development of Armases benedicti (Rathbun) (Decapoda, Sesarmidae), from the Amazon region, reared in the laboratory

“…At least, 10 larvae and postlarvae were used for illustration and measurements. The terminology used in the morphological descriptions follows DÍAZ & EWALD (1968), BOUSQUETTE (1980), PEREYRA LAGO (1987LAGO ( ,1989LAGO ( , 1993, MARQUES & POHLE (1996a, b), MAGALHÃES & MEDEIROS (1998), CUESTA & ANGER (2001), ISLAM et al (2002ISLAM et al ( , 2004, GUERAO et al (2004) and ABRUNHOSA et al (2005).…”

Density of larval and adult forms of the burrowing crustaceansLepidophthalmus siriboia(Callianassidae) andUpogebia vasquezi(Upogebiidae) in an Amazon estuary, northern Brazil

“…The larval development under laboratory conditions of both L. siriboia (Abrunhosa et al, 2005) and U. vasquezi (Oliveira et al, unpublished data) occurs at higher degrees of salinity, as for other thalassinidean species, such as Callianassa tyrrhena (Petagna, 1792), which reaches its maximal development in the laboratory at a salinity of 29 or higher (Thessalou-Legaki, 1990). Moreover, the spawning of callianassid species is also favoured at salinities greater than 20 (Botter-Carvalho et al, 2007).…”