Growth in the brown shrimp<i>Crangon crangon</i>. I. Effects of food, temperature, size, gender, moulting, and cohort

Hufnagl, Marc; Temming, Axel

doi:10.3354/meps09223

Cited by 23 publications

(19 citation statements)

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“…The growth rate was greater for females than for males and for higher temperatures, as commonly reported in previous studies (see Campos et al 2009, Hufnagl & Temming 2011a, and the maximum size was also larger for females. In contrast, maximum segment number was larger for males than for females, as was also found by Tiews (1954).…”

Section: Discussionsupporting

confidence: 70%

“…This compensation also has implications for age estimation, because populations adapted to different temperature regimes will grow differently, stressing once more the need of validating age estimation models for local conditions. Although 'latitudinal compensation' was partly corroborated by the models, as the northern population showed faster growth at higher temperatures than the southern one, the model predictions for the Minho population kept at lower temperatures were too variable to effectively confirm this assumption.Other factors have been reported to influence growth, including the shrimps' cohort and food quality (Meixner 1966, Oh & Hartnoll 2000, Hufnagl & Temming 2011a. In the present study, all observed 181 Aquat Biol 19: 167-184, 2013 shrimps were collected in the same month and fed with mussel meat, reducing the effect of these 2 variables, though probably not eliminating their influence.…”

mentioning

confidence: 70%

“…This variability resulted in significant random effects (individual shrimps) in both models. Such considerable individual variability in growth patterns had previously been described for the same studied populations (Campos et al 2009), as well as for shrimps from the North Sea (Hufnagl & Temming 2011a) and from other locations (for a summary table see Hufnagl & Temming 2011b). As a consequence of this individual variability, field populations consist as a mix of fast-and slow-growing shrimps.…”

Section: Discussionmentioning

confidence: 95%

“…Other factors have been reported to influence growth, including the shrimps' cohort and food quality (Meixner 1966, Oh & Hartnoll 2000, Hufnagl & Temming 2011a). In the present study, all observed shrimps were collected in the same month and fed with mussel meat, reducing the effect of these 2 variables, though probably not eliminating their influence.…”

Section: Discussionmentioning

confidence: 99%

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Age estimation of brown shrimp Crangon crangon: comparison of two approaches applied to populations at the biogeographic edges

Campos¹,

Bio²,

Freitas³

et al. 2013

Aquat. Biol.

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In this study, 2 methods for age estimation of Crangon crangon were compared: one based on total length, the other based on the number of segments in the antennules, as suggested by Tiews' findings (1954: Ber Deut Wiss Kommiss 13:235−269). Shrimps from populations near the species' geographic edges, from Valosen Estuary (Norway) in the north and the Minho Estuary (Portugal) in the south, were used. These showed great individual variability in shrimp size growth and in antennule segment number increment, due to the presence of fast-and slow-growing shrimps in the 2 populations, implying that shrimps of different ages may have similar sizes, as well as similar segment numbers. Additionally, the origin of shrimp population, sex, length and segment number, and water temperature were found to influence growth, both in the length-and the segment-increment models, often being interacting parameters. Both methods resulted in growth curves similar to a typical von Bertalanffy growth curve. The growth rate was higher for females than for males and positively related to temperature; the maximum size was also larger for females. In contrast, maximum segment number was larger for males than for females, as has also been found by Tiews (1954). The 2 models resulted in considerably different age estimates, particularly for older shrimps (i.e. shrimps of larger size or with more antennule segments). The models also suggest site-specific growth rates. Any age estimation approach will therefore need to be validated for each population. KEY WORDS: Crangon crangon · Age estimation · Growth · Moult · Temperature · LatitudeResale or republication not permitted without written consent of the publisher Aquat Biol 19: 167-184, 2013 requires optimum conditions, which under natural environments are seldom observed.Results from these works cannot be generalized for the entire geographic range of the species, given the latitudinal compensation which has recently been described for the growth rate under controlled food and temperature conditions (Campos et al. 2009). Instead of a reduced growth rate of northern shrimps following the latitudinal thermal gradient, as would be expected (i.e. assuming that the lower temperature regime at higher latitudes slows down growth), a 'latitudinal compensation' was observed, whereby northern shrimps grew faster than shrimps from a southern population kept at the same temperature regime. In contrast, a recent field-based study near the southern limit of the species' distribution speculates that southern shrimps grow more slowly, mature earlier and have smaller brood sizes, and that their larvae have a more protracted settlement period than northern populations (Viegas et al. 2012). However, the comparison was made between non-contemporaneous studies, which limits conclusions, since inter-annual fluctuations in both shrimp abundance (Campos et al. 2010) and timing of biological stages are frequent (e.g. Oh et al. 1999).Growth studies on crustaceans are further problematical because no hard str...

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Section: Discussionsupporting

confidence: 70%

mentioning

confidence: 70%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Age estimation of brown shrimp Crangon crangon: comparison of two approaches applied to populations at the biogeographic edges

Campos¹,

Bio²,

Freitas³

et al. 2013

Aquat. Biol.

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show abstract

“…Shell disease can also be lethal due to secondary invading pathogens into the epidermis and underlying tissues causing sepsis of the host or impairments of locomotion and feeding functions (Dyrynda, 1998;Hoenig et al, 2017;Smolowitz et al, 1992). In all ectothermic organisms such as C. crangon, temperature determines and interacts with embryogenesis, growth, molting frequencies and also the reproduction and survival (Caudri, 1939;Hufnagl and Temming, 2011a;Lloyd and Yonge, 1947;Siegel et al, 2008;Tiews, 1954). Hence, increasing water temperatures can result in physiological stress and therefore decreased defense mechanisms, which in turn lead to more susceptibility to shell disease as has been shown in the American lobster (Homarus americanus) (Dove et al, 2005;Glenn and Pugh, 2006;Tlusty et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Shell disease in Crangon crangon (Linnaeus, 1758): The interaction of temperature and stress response

Segelken-Voigt

Miller

Gerlach

2018

Journal of Experimental Marine Biology and Ecology

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A B S T R A C TThe prevalence of black spot shell disease is increasing among marine crustaceans worldwide. Rising seawater temperatures -often stressful for ectothermic species -are assumed to enhance the occurrence of shell disease. In the North Sea > 50% of local populations of the brown shrimp (Crangon crangon) are affected by the disease. While fisheries are suffering because diseased crustaceans are barely merchantable, the impact of shell disease on life history traits of crustaceans is little understood. To determine the role of temperature on the development of black spots and its implications for survival and physiology in the brown shrimp, a prolonged (3 months) thermal stress experiment was performed. We measured the increment of shell disease and the effect of molting in shrimps kept at control (15°C = equivalent to the seafloor temperature in the North Sea during sampling) and increased temperature (20°C = according to predictions for the end of the century). The resting metabolic rate was analyzed to determine the physiological state of diseased compared to non-diseased animals. In the present study, the warmer temperature in the range of 20°C did not increase the spot size of shell disease and no differences were observed between the two temperatures. The process of molting thereby seemed to diminish and in most of the cases even completely remove the signs of shell disease. At 15°C but not at 20°C, metabolic rate was reduced in diseased in contrast to healthy individuals. This study showed that shell disease might lead to a higher mortality rate and an impairment of the physiological state in C. crangon.

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A new method to determine in situ growth rates of decapod shrimp: a case study with brown shrimp Crangon crangon

Perger

Temming

2012

Mar Biol

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Shrimps are economically and ecologically very important, yet a lack of ageing techniques and hence unknown growth rates often impairs analytical assessments and management. A new method for the determination of in situ growth rates of shrimps is presented, based on dry weight condition. Since this index oscillates from low values directly after moult to highest values prior to moult in constantly feeding shrimp, the lowest observed premoult condition followed by a moult was introduced as a reference value to separate growing and starving individuals in field data. Experiments with Crangon crangon confirmed that (1) post-moult condition varies in a narrow physiologically optimal range, regardless of recent growth increments, and (2) dry weight condition prior to moult is closely related to the subsequent length increment. The method was applied to estimate growth increments from in situ dry weight condition data of C. crangon. The new method can easily be applied to other related species, since the required data can be obtained from very simple shortterm experiments.

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Growth in the brown shrimpCrangon crangon. I. Effects of food, temperature, size, gender, moulting, and cohort

Cited by 23 publications

References 53 publications

Age estimation of brown shrimp Crangon crangon: comparison of two approaches applied to populations at the biogeographic edges

Age estimation of brown shrimp Crangon crangon: comparison of two approaches applied to populations at the biogeographic edges

Shell disease in Crangon crangon (Linnaeus, 1758): The interaction of temperature and stress response

A new method to determine in situ growth rates of decapod shrimp: a case study with brown shrimp Crangon crangon

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