Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 424593
Title Some lite it hot: the effect of temperature on brood development in the invasive crab Hemigrapsus takanoi (Decapoda: brachyura: Varunidae)
Author(s) Brink, A.M. van den; Godschalk, M.; Smaal, A.C.; Lindeboom, H.J.; McLay, C.L.
Source Journal of the Marine Biological Association of The United Kingdom 93 (2013)1. - ISSN 0025-3154 - p. 189 - 196.
Department(s) IMARES Delta
Aquaculture and Fisheries
Aquatic Ecology and Water Quality Management
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) carcinus-maenas - green crab - shore crab - atlantic coast - sanguineus - grapsidae - hymenosomatidae - penicillatus - california - crustacea
Abstract The duration of brood development in the introduced crab, Hemigrapsus takanoi in the Oosterschelde, The Netherlands, was compared at three different water temperatures. At 12, 18 and 24°C the females took an average of 32, 11 and 8 days respectively to lay eggs, which took 86, 28 and 18 days respectively to complete development. Five stages of development were identified, with each brood stage comprising a similar proportion of the duration time at different temperatures. The duration of each brood stage was also somewhat proportional to the number of females found carrying each brood stage in the field at the beginning of the breeding season. There appears to be a trigger for the breeding season in H. takanoi in the field at around 15°C above which ovary development begins. The results suggest that an increase in water temperature as a result of climate change may result in an increased net reproductive rate in H. takanoi due to earlier onset of the breeding season and increased number of broods per inter-moult period resulting in population growth. Increased temperatures may therefore lead to increased invasiveness of H. takanoi where it is already present, and range extension into locations where its establishment is currently excluded by unsuitable temperature
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