scholarly journals Predation intensity of the portunid crabs Charybdis japonica and Portunus pelagicus on the hermit crab Diogenes nitidimanus according to season, predator size, and prey shell type and size

2020 ◽  
Vol 75 (0) ◽  
pp. 35-42
Author(s):  
Naohiko SAKATA ◽  
Kenji YOSHINO ◽  
Tsunenori KOGA
Keyword(s):  
Hermit Crab ◽  
Portunus Pelagicus ◽  
Predation Intensity ◽  
Predator Size ◽  
Shell Type ◽  
Charybdis Japonica ◽  
Diogenes Nitidimanus

Effect of two collapsible pot designs on escape rate and behavior of the invasive swimming crabs Charybdis japonica and Portunus pelagicus

2007 ◽  
Vol 85 (1-2) ◽  
pp. 202-209 ◽  
Author(s):  
Miguel Vazquez Archdale ◽  
Cherry Pilapil Añasco ◽  
Yousuke Kawamura ◽  
Sanae Tomiki
Keyword(s):  
Escape Rate ◽  
Portunus Pelagicus ◽  
Charybdis Japonica ◽  
And Behavior ◽  
Swimming Crabs

A reexamination of adults and larval stages of Diogenes nitidimanus (Crustacea: Decapoda: Anomura: Diogenidae)

Zootaxa ◽  
2008 ◽  
Vol 1693 (1) ◽  
pp. 1 ◽  
Author(s):  
OLGA M. KORN ◽  
ELENA S. KORNIENKO ◽  
TOMOYUKI KOMAI
Keyword(s):  
Larval Development ◽  
Hermit Crab ◽  
Russian Far East ◽  
Far East ◽  
Peter The Great Bay ◽  
Developmental Morphology ◽  
Larval Stages ◽  
Peter The Great ◽  
Two Populations ◽  
Diogenes Nitidimanus

A redescription of adult and larval stages of diogenid hermit crab Diogenes nitidimanus Terao, 1913 is presented. Morphological similarities suggest that D. nitidimanus is allied to D. avarus Heller, 1865, D. granulatus Miers, 1880, D. ovatus Miers, 1881, D. pugilator (Roux, 1838) and D. rectimanus Miers, 1884. Diogenes nitidimanus can be distinguished from the latter four species by different armature or ornamentation of the left chela and/or the shape of the ambulatory dactyli. Zoeal and megalopal stages of this species are described from laboratory-reared material hatched from parental individuals collected from Peter the Great Bay, Russian Far East. Larval development in the Russian population is compared with that described for a population of this species from southern Japan. The developmental morphology between the two populations is generally similar, but some minor differences, which might be attributable to variability, are found. Larvae of D. nitidimanus are morphologically closest to those of D. avarus among eight species of Diogenes for which larval descriptions are available.

Egg production and shell relationship of the hermit crab Pagurus brevidactylus (Anomura: Paguridae) from southern Brazil

2005 ◽  
Vol 55 (2) ◽  
pp. 111-121 ◽  
Author(s):  
Fernando Mantelatto ◽  
Renata Biagi ◽  
Carmem Iossi
Keyword(s):  
Hermit Crab ◽  
Early Phase ◽  
Egg Production ◽  
Reproductive Potential ◽  
Low Frequency ◽  
Early Maturity ◽  
Littoral Region ◽  
Stage Of Development ◽  
Shell Type ◽  
Relationship Of

AbstractThe present study characterised the fecundity of the hermit crab Pagurus brevidactylus as well as the influence of shell type and size on fecundity using the morphometric relationship. Ovigerous females were collected monthly from January to December 1999 in the infra-littoral region of Anchieta Island, using scuba-diving methods. Only the ovigerous females with eggs in the early phase of development were selected for the fecundity analysis. The number of eggs carried by individuals of several sizes (SL, shield length), condition of development, and egg size were determined. A high percentage (77.0%) of ovigerous females with eggs in the early phase of development were captured, with a low frequency (9.2%) of females with eggs in the final stage of development. A total of 157 females with recently produced eggs were analysed. Individual fecundity ranged from 27 (SL = 1.25 mm) to 1075 eggs (SL = 3.19 mm) and mean fecundity was 158 ± 119 eggs. The number of eggs produced during spring was significantly higher than those produced in the other seasons of the year. Considering the two shells most occupied by P. brevidactylus (C. atratum and M. nodulosa), the highest fecundity was observed for ovigerous females occupying M. nodulosa ones, showing that shell type can influence the reproductive potential of ovigerous females. The reproductive aspects of P. brevidactylus were related to the shell species occupied and to strategies developed to compensate for interspecific competition, i.e., continuous reproductive effort and early maturity.

Comparative fishing trials for invasive swimming crabs Charybdis japonica and Portunus pelagicus using collapsible pots

2006 ◽  
Vol 82 (1-3) ◽  
pp. 50-55 ◽  
Author(s):  
Miguel Vazquez Archdale ◽  
Cherry Pilapil Añasco ◽  
Shinji Hiromori
Keyword(s):  
Portunus Pelagicus ◽  
Charybdis Japonica ◽  
Swimming Crabs

The Influence of Shell-Type On Hermit Crab Growth Rate and Clutch Size (Decapoda, Anomura)

Crustaceana ◽  
1981 ◽  
Vol 40 (2) ◽  
pp. 197-205 ◽  
Author(s):  
Mark D. Bertness
Keyword(s):  
Growth Rate ◽  
Clutch Size ◽  
Hermit Crab ◽  
Shell Type
Sign in / Sign up

Export Citation Format

Share Document