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| BERTINI,G.; FRANSOZO,A.. |
| The purpose of this paper is to investigate the relative growth and heterochely in the hermit crab Petrochirus diogenes. Hermit crabs were collected in the Ubatuba region, SP, from 1993 to 1996; using a commercial fishing boat equipped with two double-rig nets. Body mass of each individual was weighed and their cephalothoracic shield and chelar propodus size were measured. Body mass and chelar propodus size were regarded as dependent variables and plotted against length of cephalothoracic shield according to the allometric equation y = a.x b. A total of 479 individuals were obtained being 307 males and 172 females. Cephalothoracic shield width follows an isometric growth for both sexes. Otherwise, right cheliped dimensions show different relative growth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Relative growth; Hermit crab; Petrochirus; Diogenidae. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000400011 |
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| Ayres-Peres,Luciane; Mantelatto,Fernando L.. |
| A estrutura populacional do ermitão Loxopagurus loxochelis (Moreira, 1901) foi analisada por meio da distribuição de freqüência dos animais em classes de tamanho e da razão sexual. Espécimes foram coletados mensalmente no período de um ano (julho de 2002 a junho de 2003), em sete transectos (5 aos 35 m de profundidade), usando barco equipado com duas redes do tipo double-rig, nas enseadas de Caraguatatuba e de Ubatuba (Estado de São Paulo, Brasil). Em Caraguatatuba foram coletados 366 animais, sendo 222 machos (60,65%), 114 fêmeas não-ovígeras (31,15%) e 30 fêmeas ovígeras (8,20%) e, em Ubatuba, 126 ermitões, dos quais 81 machos (64,28%), 38 fêmeas não-ovígeras (30,16%) e sete fêmeas ovígeras (5,56%). Em Caraguatatuba, a alta incidência de fêmeas ovígeras... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crustacea; Diogenidae; População; Reprodução; Razão sexual. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000100004 |
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| Lemaitre, Rafael; Listyo Rahayu, Dwi; Komai, Tomoyuki. |
| For 130 years the diogenid genus Paguropsis Henderson, 1888 was considered monotypic for an unusual species, P. typica Henderson, 1888, described from the Philippines and seldom reported since. Although scantly studied, this species is known to live in striking symbiosis with a colonial sea anemone that the hermit can stretch back and forth like a blanket over its cephalic shield and part of cephalothoracic appendages, and thus the common name "blanket-crab". During a study of paguroid collections obtained during recent French-sponsored biodiversity campaigns in the Indo-West Pacific, numerous specimens assignable to Paguropsis were encountered. Analysis and comparison with types and other historical specimens deposited in various museums revealed the... |
| Tipo: Text |
Palavras-chave: Diogenidae; Hermit crab; New species; Paguropsina gen n. Paguropsis; Symbiotic anemone. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00620/73241/72753.pdf |
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