Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Population dynamics of the burrowing shrimp Lepidophthalmus siriboia Felder and Rodrigues, 1993 (Reptantia: Axiidea: Callianassidae) on the Amazonian coast

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Journal of Crustacean Biology

This study provides information on the population structure, reproductive biology, growth, and mortality of Lepidophthalmus siriboia Felder and Rodrigues, 1993 on Algodoal Island in northern Brazil. Each month between June 2007 and May 2008, approximately 100 specimens were collected from a sand-muddy beach. In the laboratory, the specimens were wet weighed, measured – carapace length (CL) and length of the major chela (ChL) – and sexed. The ovigerous females were classified according to the stage of embryonic development. A total of 1268 individuals were analyzed (753 males, 515 females). Females were significantly larger than males throughout most of the year. Males reached sexual maturity at 6 mm and females at 7 mm. The observed overall sex ratio (1.5 male:1 female) was significantly different to the expected sex ratio of 1:1 ( χ 2 = 44 . 3 ; df = 1; p < 0 . 01 ; n = 1268 ). There was a significant female bias (0.7:1) in the specimens with a carapace length of over 10 mm ( χ 2 = 7 . 9 ; df = 1; p < 0 . 01 ; n = 313 ). Ovigerous females occurred throughout the study period, peaking in July, January, and April. The smallest ovigerous female had a carapace length of 7.5 mm. Fecundity was positively and significantly related to carapace length and body weight. Females had a higher maximum asymptotic carapace length and longevity (females: L ∞ = 15 . 3  mm carapace length, longevity = 1.4 years; males: L ∞ = 14 . 9  mm carapace length, longevity = 1.3 years). Males grow faster ( K = 0 . 009 ) than females ( K = 0 . 007 ) before reaching sexual maturity, but as adults, growth rates are similar in both sexes. Estimates of mortality rates varied among methods, but were invariably higher for males.

Affiliations: 1: 1Laboratório de Bentos, Departamento de Oceanografia, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, S/N, Cidade Universitária, Recife, Pernambuco, CEP 50670-901, Brasil; 2: 2Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Av. D. Manoel de Medeiros, S/N, Recife, Pernambuco, CEP 52171-030, Brasil

Loading

Full text loading...

/content/journals/10.1163/1937240x-00002157
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/1937240x-00002157
Loading

Article metrics loading...

/content/journals/10.1163/1937240x-00002157
2013-01-01
2016-12-08

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Journal of Crustacean Biology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation