scholarly journals Life history of Sacculina carcini Thompson, 1836 (Cirripedia: Rhizocephala: Sacculinidae) and the intermoult cycle of its host, the shore crab Carcinus maenas (Linnaeus, 1758) (Decapoda: Brachyura: Carcinidae)

2018 ◽  
Vol 38 (4) ◽  
pp. 413-419 ◽  
Author(s):  
Jørgen Lützen ◽  
Knut Helge Jensen ◽  
Henrik Glenner
Keyword(s):  
Life History ◽  
Carcinus Maenas ◽  
Shore Crab ◽  
Sacculina Carcini ◽  
History Of

scholarly journals Notes on the life history of Sacculina carcini Thompson

1940 ◽  
Vol 24 (1) ◽  
pp. 253-264 ◽  
Author(s):  
G. E. H. Foxon
Keyword(s):  
Life History ◽  
Breeding Season ◽  
Carcinus Maenas ◽  
Breeding Period ◽  
Sacculina Carcini ◽  
History Of ◽  
Ultimate Fate ◽  
Length Of Life ◽  
Clyde Sea ◽  
Sea Area

The life history of Sacculina carcini parasitic on Carcinus maenas in the Clyde sea area is discussed and the breeding period and the time of the emergence of the young externa are indicated. The time and duration of the breeding season are compared both with what has been found at Plymouth and Roscoff for the same species of parasite on the same host crab, and also with what was found by Day (1935) who worked in the Mersey area on Sacculina carcini but parasitizing Portunus holsatus.The length of life of the Sacculina externa and their ultimate fate are discussed. It is shown that in male crabs which act as hosts the liability of the secondary sexual characters to modification is correlated with size.

scholarly journals Life History and Population Dynamics of Green Crabs (Carcinus maenas)

Fishes ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 4 ◽  
Author(s):  
Alan M. Young ◽  
James A. Elliott
Keyword(s):  
Population Dynamics ◽  
Life History ◽  
Larval Development ◽  
Habitat Preferences ◽  
Carcinus Maenas ◽  
Ecological Impacts ◽  
Ecosystem Dynamics ◽  
Shore Crab ◽  
Restrictive Temperature ◽  
Important Species

Carcinus maenas (the “shore crab” or “European green crab”) is a very proficient invader (considered to be one of the world’s 100 worst invaders by the IUCN) due to its phenotypic plasticity, wide temperature and salinity tolerance, and an extensive omnivorous diet. Native to Atlantic Europe, it has established two well-studied nonindigenous populations in the northwestern Atlantic and northeastern Pacific and less-studied populations in Australia, Argentina and South Africa. Green crabs are eurythermal and euryhaline as adults, but they are limited to temperate coastlines due to more restrictive temperature requirements for breeding and larval development. They cannot tolerate wave-swept open shores so are found in wave-protected sheltered bays, estuaries and harbors. Carcinus maenas has been the subject of numerous papers, with over 1000 published in the past decade. This review provides an up-to-date account of the current published information on the life history and population dynamics of this very important species, including genetic differentiation, habitat preferences, physical parameter tolerances, reproduction and larval development, sizes of crabs, densities of populations, sex ratios, ecosystem dynamics and ecological impacts in the various established global populations of green crabs.

Observations on two infectious agents found within the rootlets of the parasitic barnacle, Sacculina carcini

2000 ◽  
Vol 80 (2) ◽  
pp. 373-374 ◽  
Author(s):  
J.D. Russell ◽  
G. Walker ◽  
R. Woollen
Keyword(s):  
Electron Microscopy ◽  
Carcinus Maenas ◽  
Infectious Agent ◽  
Yeast Cells ◽  
Shore Crab ◽  
Infectious Agents ◽  
Transmission Electron ◽  
Sacculina Carcini ◽  
The Common ◽  
Respective Host

Two types of infectious agent within rootlet cells of the parasitic barnacle, Sacculina carcini have been recognized by transmission electron microscopy. The rootlets were dissected from the common shore crab, Carcinus maenas, collected from two locales—Plymouth and Pwllheli. Yeast cells were identified within cells of S. carcini rootlets from crabs collected at both locations and an iridovirus was also found, but only in rootlets from Plymouth crabs. These infectious agents were never found co-occurring in the rootlets from Plymouth crabs. Both agents, when present in rootlets, were also present in the respective host crab tissues. It is therefore concluded that S. carcini rootlets are susceptible to invasion from natural infectious agents of the host crab.

Population dynamics and development of the rhizocephalan Sacculina carcini, parasitic on the shore crab Carcinus maenas

2018 ◽  
Vol 131 (3) ◽  
pp. 199-211 ◽  
Author(s):  
KN Mouritsen ◽  
SNS Geyti ◽  
J Lützen ◽  
JT Høeg ◽  
H Glenner
Keyword(s):  
Population Dynamics ◽  
Carcinus Maenas ◽  
Shore Crab ◽  
Sacculina Carcini

Parasites of the shore crab Carcinus maenas (L.): implications for reproductive potential and invasion success

Parasitology ◽  
2010 ◽  
Vol 138 (3) ◽  
pp. 394-401 ◽  
Author(s):  
C. ZETLMEISL ◽  
J. HERMANN ◽  
T. PETNEY ◽  
H. GLENNER ◽  
C. GRIFFITHS ◽  
...  
Keyword(s):  
South Africa ◽  
Carcinus Maenas ◽  
Reproductive Potential ◽  
Population Level ◽  
Invasion Success ◽  
Shore Crab ◽  
Helminth Parasites ◽  
Marine Invasive Species ◽  
Sacculina Carcini ◽  
Host Parasite

SUMMARYThe European shore crab, Carcinus maenas, is one of the most successful marine invasive species. Its success has been in part attributed to the loss of parasites, rekindling an interest in host-parasite interactions and impacts on host fitness in this crab. In the present study, we investigated C. maenas populations from Europe, South Africa and Australia for parasites, and assessed their impact on the fitness of male crabs. For the shore crab, testes weight along with success in mating competition is traded off against other life-history traits. We therefore used this parameter as an indicator both for reproductive fitness and a possible resource trade-off in response to parasite infestation. In the native range, crabs infested with Sacculina carcini showed significantly lower testes weight than uninfected crabs. However, helminth parasites did not generally cause reduced testes weights. Crab populations from South Africa and Australia were either parasitized at very low prevalences, or were completely parasite free. However, no population level effect of this parasite release was reflected in testes weight. These findings do not support a severe fitness impact of helminth parasites on C. maenas, which questions the role of parasites on its population dynamics, both in the native area and for invasive success.

scholarly journals Life History and Population Dynamics of Green Crabs (Carcinus maenas)

2019 ◽  
Author(s):  
Alan M. Young ◽  
James A. Elliott
Keyword(s):  
Population Dynamics ◽  
Life History ◽  
Larval Development ◽  
Habitat Preferences ◽  
Carcinus Maenas ◽  
Ecological Impacts ◽  
Ecosystem Dynamics ◽  
Shore Crab ◽  
Restrictive Temperature ◽  
Important Species

Carcinus maenas (the “shore crab” or “European green crab”) is a very proficient invader (considered to be one of the world’s 100 worst invaders by the IUCN) due to its phenotypic plasticity, wide temperature and salinity tolerance, and an extensive omnivorous diet. Native to Atlantic Europe, it has established two well‐studied nonindigenous populations in the northwestern Atlantic and northeastern Pacific and less‐studied populations in Australia, Argentina and South Africa. Green crabs are eurythermal and euryhaline as adults, but they are limited to temperate coastlines due to more restrictive temperature requirements for breeding and larval development. They cannot tolerate wave‐swept open shores so are found in wave‐protected sheltered bays, estuaries and harbors. Carcinus maenas has been the subject of numerous papers, with over 1000 published in the past decade. This review provides an up‐to‐date account of the current published information on the life history and population dynamics of this very important species, including genetic differentiation, habitat preferences, physical parameter tolerances, reproduction and larval development, sizes of crabs, densities of populations, sex ratios, ecosystem dynamics and ecological impacts in the various established global populations of green crabs.

Sign in / Sign up

Export Citation Format

Share Document