| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Tubingen, Fac Sci, Dept Biol, D-72076 Tubingen - Germany
[2] Univ Sao Paulo, FFCLRP, Dept Biol, LBSC, BR-14040901 Ribeirao Preto, SP - Brazil
[3] UFSB, IHAC JA, BR-45613204 Itabuna, BA - Brazil
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | Brazilian Journal of Oceanography; v. 63, n. 3, p. 207-216, JUL-SEP 2015. |
| Web of Science Citations: | 6 |
| Abstract | |
AbstractDecapod species have evolved with a variety of reproductive strategies. In this study reproductive features of the palaemonid shrimp Leander paulensiswere investigated. Individuals were collected in the coastal region of Ubatuba, São Paulo, Brazil. In all, 46 ovigerous females were examined in terms of the following reproductive traits: fecundity, reproductive output, brood loss and egg volume. Leander paulensis produces a large number of small eggs with an average fecundity of 635 ± 246 eggs. Egg volume increased significantly from early (0.034 ± 0.008 mm3) to late development stage (0.05 ± 0.012 mm3). The reproductive output did not correlate with female size. The weight of females bearing stage 2 eggs was significantly higher than that of females carrying stage 1 eggs. We assume that the reason for this weight gain is the recovery of female reserves that have been depleted for egg production. Moreover, we emphasize that this weight gain must be considered when evaluating weight-dependent variables such as reproductive output or brood loss in relation to female weight. Otherwise, an overestimation of these variables might lead to inaccurate results. (AU) | |
| FAPESP's process: | 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics) |
| Grantee: | Fernando Luis Medina Mantelatto |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |