Stone crabs close to the Antarctic Continent: Lithodes murrayi Henderson, 1888 (Crustacea; Decapoda; Anomura) off Peter I Island (68�51?S, 90�51?W)

Klages, Michaël; Gutt, Julian; Starmans, Andreas; Bruns, T.

doi:10.1007/bf00236128

Cited by 37 publications

(37 citation statements)

References 3 publications

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“…Most species recorded from waters south of the polar front inhabit the deep sea or seamounts, at measured in situ temperatures as low as 1 to 2.2°C (Klages et al, 1995;Collins et al, 2002;Thatje et al, 2008). This lower threshold of lithodid temperature tolerance may also explain the absence of species from this decapod family from the high-Antarctic continental shelves, where sub-zero water temperatures are prevailing (for review see Aronson et al, 2007).…”

Section: Larval Development At Temperature Limitsmentioning

confidence: 99%

Energetic changes throughout lecithotrophic larval development in the deep-sea lithodid crab Paralomis spinosissima from the Southern Ocean

Thatje

Mestre

2010

Journal of Experimental Marine Biology and Ecology

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Adult populations of the lithodid crab Paralomis spinosissima thrive at the lower temperature boundary of about 1°C for the Lithodidae, and are endemic to deep waters off South Georgia, Southern Ocean. Here, we present evidence for lecithotrophic development throughout the early ontogeny of this species over a period of 14 months. At constant 5°C (± 0.5), development of the Zoea I and II, the megalopa, and the crab I instar lasted about 12, 24, 108, and 290 days, respectively. Successful development and moult at lower temperatures could not be observed. Changes in biomass and elemental composition (W, C, and N) were studied throughout larval and early megalopa development. Initial biomass was about twice as high as in lecithotrophic larval developments previously reported for subantarctic lithodids, and only a minimal shift (9.2 to 8.9) in C:N mass ratio was observed from the Zoea I to the megalopa stage; at the same time an even decrease of both C and N indicated no bias toward the depletion of lipids. Very thin exuviae cast at moult support the view of energy-saving adaptations throughout larval development. The cost of higher maternal investment into single offspring and the lack of evidence for successful larval development at temperatures typical of Southern Ocean deep waters, pose questions with regard to the frequency of successful recruitment events of lithodid crabs at their lower physiological temperature tolerance. Significant intraspecific variability in larval energetic fitness at hatching between females, suggesting variability in offspring fitness, may additionally constrain on offspring survival.

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Section: Larval Development At Temperature Limitsmentioning

confidence: 99%

Energetic changes throughout lecithotrophic larval development in the deep-sea lithodid crab Paralomis spinosissima from the Southern Ocean

Thatje

Mestre

2010

Journal of Experimental Marine Biology and Ecology

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“…The increased records of lithodid crabs in deeper waters and on seamounts surrounding the Antarctic continent in recent years raised the question of established lithodid crab populations in the Southern Ocean (López Abellan and Balguerías 1993; Klages et al 1995;Arana and Retamal 1999;Thatje and Arntz 2004;Thatje and Lörz 2005). Although the origin and especially the timescale of lithodid radiation in the Southern Ocean remains obscure , there is consensus that these largest arthropods currently inhabiting the oceans are the most likely candidates to invade the shallow waters of the Antarctic continental shelf under conditions of climate change (Meredith and King 2005;.…”

Section: Introductionmentioning

confidence: 99%

Encounter of lithodid crab Paralomis birsteini on the continental slope off Antarctica, sampled by ROV

et al. 2008

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A population of stone crab (Lithodidae) was encountered on the continental slope oV Antarctica in the Bellingshausen Sea between 1,123 and 1,304 m water depths using the ROV-Isis during leg 166 of the RV James Clark Ross, in January 2007. Specimens were video recorded and one specimen was retrieved by ROV for morphological and molecular identiWcation. Based on morphology and molecular data from the mitochondrial COI gene, this specimen identiWed as P. birsteini, Macpherson, 1988a. The signiWcance of the molecular data and their implications for biogeography and evolution of lithodids in the Southern Ocean are brieXy discussed.

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“…Arntz et al, 1994Arntz et al, , 1997Klages et al, 1995;Gorny, 1999;Zaklan, 2002). Recent experimental studies suggested that this deviating distributional pattern of the Lithodidae among the reptant decapods is due to special adaptations of their early life-history stages to conditions of cold and food-limitation in high latitudes, namely tolerance of low temperatures and lecithotrophic (i.e.…”

Section: Introductionmentioning

confidence: 99%

Larval and early juvenile development of Lithodes santolla (Molina, 1782) (Decapoda: Anomura: Lithodidae) reared at different temperatures in the laboratory

Anger

Lovrich

Thatje

et al. 2004

Journal of Experimental Marine Biology and Ecology

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The southern king crab, Lithodes santolla Molina, is distributed in cold-temperate and subantarctic waters ranging from the southeastern Pacific island of Chiloé (Chile) and the deep Atlantic waters off Uruguay, south to the Beagle Channel (Tierra del Fuego, Argentina/Chile). Recent investigations have shown that its complete larval development from hatching to metamorphosis, comprising three zoeal stages and a megalopa, is fully lecithotrophic, i.e. independent of food. In the present study, larvae were individually reared in the laboratory at seven constant temperatures ranging from 1 to 18 jC, and rates of survival and development through successive larval and early juvenile stages were monitored throughout a period of 1 year. The highest temperature (18 jC) caused complete mortality within 1 week; only a single individual moulted under this condition, 2 days after hatching, to the second zoeal stage, while all other larvae died later in the zoea I stage. At the coldest condition (1 jC), 71% of the larvae reached the zoea III stage, but none of these moulted successfully to a megalopa. A temperature of 3 jC allowed for some survival to the megalopa stage (17 -33% in larvae obtained from two different females), but only a single individual passed successfully, 129 days after hatching, through metamorphosis to the first juvenile crab instar. At all other experimental conditions (6, 9, 12 and 15 jC), survival through metamorphosis varied among temperatures and two hatches from 29% to 90% without showing a [T]). The same model was also used to describe the temperature dependence of cumulative periods of development from hatching to later larval or juvenile stages. One year after hatching, the 7th (6 jC) to 9th (15 jC) crab instar was reached. Under natural temperature conditions in the region of origin of our material (Beagle Channel, Argentina), L. santolla should reach metamorphosis in October -December, i.e. ca. 2 months after hatching (taking place in winter and early spring). Within 1 year from hatching, the crabs should grow approximately to juvenile instars VII -VIII. Our results indicate that the early life-history stages of L. santolla tolerate moderate cold stress as well as planktonic food-limitation in winter, implying that this species is well adapted to subantarctic environments with low temperatures and a short seasonal plankton production. D

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Stone crabs close to the Antarctic Continent: Lithodes murrayi Henderson, 1888 (Crustacea; Decapoda; Anomura) off Peter I Island (68�51?S, 90�51?W)

Cited by 37 publications

References 3 publications

Energetic changes throughout lecithotrophic larval development in the deep-sea lithodid crab Paralomis spinosissima from the Southern Ocean

Energetic changes throughout lecithotrophic larval development in the deep-sea lithodid crab Paralomis spinosissima from the Southern Ocean

Encounter of lithodid crab Paralomis birsteini on the continental slope off Antarctica, sampled by ROV

Larval and early juvenile development of Lithodes santolla (Molina, 1782) (Decapoda: Anomura: Lithodidae) reared at different temperatures in the laboratory

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