PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Is Latitudinal Variation Determinant in the Biology of Neohelice granulata? Reproduction and Relative Growth of a Coastal Wetland Key Specie at the Northern Limit of its Distribution
Version 1
: Received: 2 May 2023 / Approved: 4 May 2023 / Online: 4 May 2023 (03:52:38 CEST)
Version 2
: Received: 18 May 2023 / Approved: 19 May 2023 / Online: 19 May 2023 (08:10:55 CEST)
How to cite:
Stauffer, T.; Costa, T. D. M. M. Is Latitudinal Variation Determinant in the Biology of Neohelice granulata? Reproduction and Relative Growth of a Coastal Wetland Key Specie at the Northern Limit of its Distribution. Preprints2023, 2023050177. https://doi.org/10.20944/preprints202305.0177.v1
Stauffer, T.; Costa, T. D. M. M. Is Latitudinal Variation Determinant in the Biology of Neohelice granulata? Reproduction and Relative Growth of a Coastal Wetland Key Specie at the Northern Limit of its Distribution. Preprints 2023, 2023050177. https://doi.org/10.20944/preprints202305.0177.v1
Stauffer, T.; Costa, T. D. M. M. Is Latitudinal Variation Determinant in the Biology of Neohelice granulata? Reproduction and Relative Growth of a Coastal Wetland Key Specie at the Northern Limit of its Distribution. Preprints2023, 2023050177. https://doi.org/10.20944/preprints202305.0177.v1
APA Style
Stauffer, T., & Costa, T. D. M. M. (2023). Is Latitudinal Variation Determinant in the Biology of <em>Neohelice granulata</em>? Reproduction and Relative Growth of a Coastal Wetland Key Specie at the Northern Limit of its Distribution. Preprints. https://doi.org/10.20944/preprints202305.0177.v1
Chicago/Turabian Style
Stauffer, T. and Tarso de M. M. Costa. 2023 "Is Latitudinal Variation Determinant in the Biology of <em>Neohelice granulata</em>? Reproduction and Relative Growth of a Coastal Wetland Key Specie at the Northern Limit of its Distribution" Preprints. https://doi.org/10.20944/preprints202305.0177.v1
Abstract
In order to test the hypothesis that local environmental features are more deterministic than latitudinal variation in crabs’ life history, some aspects of the biology of the burrowing crab Neohelice granulata were studied in the northern limit of this species distribution (Caceribu River, Guapimirim, RJ, Brazil). The sex ratio was female-biased over the year. Males were significantly larger (t-test = 3.53, p<0.05) than females (CW mean = 29.14 mm and 27.32 mm, respectively). Females were predominant in the intermediary-size classes. The reproductive period took place from February to November, with a peak in May. Juveniles were found all over the year. The size at maturity was estimated at 19.0 mm for females and 23.9 mm for males. Average fecundity was 20,419 eggs (±12,627.12) and showed a decrease from the first to the last stage of embryonic development. Most of the results from this study do not corroborate the predictions of the latitudinal gradient in crabs’ life history. This strengthens the hypothesis that the biology of brachyurans is mainly driven by environmental factors than latitudinal variation.
Biology and Life Sciences, Animal Science, Veterinary Science and Zoology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
