Effects of starvation on energy metabolism and crustacean hyperglycemic hormone (CHH) of the Atlantic ghost crab Ocypode quadrata (Fabricius, 1787)

Vinagre, Anapaula Sommer; Chung, J. Sook

doi:10.1007/s00227-015-2797-3

Cited by 32 publications

(25 citation statements)

References 53 publications

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“…The preservation of glycogen tail muscle may reflect its utility as a fuel in searching for food and/or tail-flip escape reaction. Nevertheless, in brachyuran crabs such as Neohelice granulata (Varunidae) or Ocypode quadrata (Ocypodidae) the muscle glycogen levels gradually decrease after 7 or 15 days of starvation, in order to maintain its energy requirements [ 42 , 43 ].…”

Section: Discussionmentioning

confidence: 99%

Energy reserves mobilization: Strategies of three decapod species

et al. 2017

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In food deprivation assays, several different responses have been observed in crustaceans. However, studying energy reserves utilization among more than one species during the same starvation period has not yet been performed, particularly to discern whether the responses are due to intrinsic and/or environmental factors. We hypothesize that decapod species with similar feeding habits have the same strategies in the use of energetic reserves during starvation, even though they inhabit different environments. The aim of this study was to compare the energy reserves mobilization of three decapods species (Cherax quadricarinatus, Palaemon argentinus and Munida gregaria) with similar feeding habits, exposed to similar food deprivation conditions. The crayfish, shrimp and squat-lobster were experimentally kept at continuous feeding or continuous starvation throughout 15 days. Every 3rd day, the midgut gland index (MGI), and the glycogen, lipid and protein contents were measured in the midgut gland (MG) and pleon muscle. Palaemon argentinus mobilized more reserves during starvation, followed by C. quadricarinatus, and the last M. gregaria. The starved shrimps presented low MGI, whereas MG showed a reduction in glycogen (from day 6 to 15), lipid (from day 3 to 15), and protein levels (at day 9 and 15) while in their muscle, lipid reserves decreased at days 3 and 6. In C. quadricarinatus, the most affected parameters in the MG were MGI, glycogen (from day 6 to 15), and lipids (at day 12 and 15). In the MG of M. gregaria only the glycogen was reduced during fasting from 3 to 15 days. Even though the three studied species have similar feeding habitats, we found that their energetic profile utilization is different and it could be explained by the habitat, life span, temperature, organ/tissue, and metabolism of the species. Our results may be useful to understand the several different responses of crustaceans during starvation.

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Section: Discussionmentioning

confidence: 99%

Energy reserves mobilization: Strategies of three decapod species

et al. 2017

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“…). During stress periods (e.g ., hypothermia, starvation), energy demands are probably met by hepatopancreas lipolysis (Vinagre & Chung ), usually reducing the HSI. During the LA period, individuals of L. uruguayensis remained inside their burrows, probably to escape the low environmental temperatures.…”

Section: Discussionmentioning

confidence: 99%

“…A large hepatopancreas mass (high HSI) usually indicates good nutritional and physiological conditions in Decapoda (Wang & Mcgaw 2014;Han et al 2015;Sacrist an et al 2016). During stress periods (e.g., hypothermia, starvation), energy demands are probably met by hepatopancreas lipolysis (Vinagre & Chung 2016), usually reducing the HSI. During the LA period, individuals of L. uruguayensis remained inside their burrows, probably to escape the low environmental temperatures.…”

Section: Discussionmentioning

confidence: 99%

Temperature influences the reproduction of fiddler crabs at the southern edge of their distribution

Colpo

Greco

2017

Invertebrate Biology

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Understanding the spatial patterns of reproductive biology might provide predictions about fitness and population stability in different locations within the geographical range of a particular species. Leptuca uruguayensis is a fiddler crab that breeds year round in tropical estuaries but only in summer months in temperate salt marshes. In this study, we examined several reproductive attributes of the southernmost population of L. uruguayensis, including the proportion of ovigerous females, the proportion of surface‐active crabs, the developmental status of the gonads and hepatopancreas, and the fullness of seminal receptacles, and related them to environmental factors such as temperature, photoperiod, and sediment organic matter content. We found that temperature was the environmental factor that was most correlated with the reproductive process of the southernmost fiddler crab, since this environmental factor was related to ovarian development, to the fullness of seminal receptacles, and to the hepatosomatic index. At the southern edge of its distribution, the low temperatures of winter restricted reproduction in L. uruguayensis. These winter temperatures might represent the lower limit of the thermal window of this fiddler crab, limiting its extension toward higher latitudes.

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“…The greatest number of molts and ovigerous females was recorded from treatment groups 34/7 and 37/9, which were significantly greater than those data obtained from the control diet, which exhibited the lowest values (Table 3). Weight increase (g) 34/7 34/8 34/9 37/7 37/8 37/9 40/7 40/8 40/9 TC as the basic requirements are met by the available diets (Vinagre & Chung, 2016). This adaptation is largely due to the digestive enzymes of low molecular weight (proteases of 11,000 Daltons) found in the hepatopancreas of crustaceans, which have a high metabolic activity allowing more efficient protein digestion compared to other organisms, and is believed to be exclusive to this group of invertebrates (Zwilling, Dörsam, Torff, & Rödl, 1981).…”

Section: Re Sultsmentioning

confidence: 99%

Protein and lipid requirement for the growth and reproduction of the peppermint shrimp Lysmata wurdemanni

2019

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The effect of dietary protein and lipid level on growth and reproductive efficiency of the pepermint shrimp Lysmata wurdemanni was evaluated over a 90‐day period. The percentage of protein and lipid (%P/L) in the experimental diets varied as follows: 34/7, 34/8, 34/9, 37/7, 37/8, 37/9, 40/7, 40/8 and 40/9, and a commercial diet was used as control (35/7‐Silver Cup®). Fifteen shrimps per treatment and three replicates were used. The number of moults, survival, and growth, number of ovigerous females as well as protein and carbon content of fertilized eggs were evaluated. The shrimps fed experimental diets 37/7 and 40/9 exhibited a survival of 100%, whilst the survival of shrimp fed diet 40/7 was 73%, without significant differences being observed among the treatment groups. The weight gained (g) by shrimps fed diets 37/9 and 40/8 was significantly greater than the control group. The greatest percentage of ovigerous females was observed in those fed 34/7 and 37/9 diets, and the lowest in the control group. The greatest content of protein/carbon in the eggs was found in females fed the 40/8 diet. The results indicated that a P/L relationship of 34/7% promote efficient growth; however, during the reproductive phase it is necessary to increase the P/L to 40/8% to improve the quality and viability of the eggs.

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Effects of starvation on energy metabolism and crustacean hyperglycemic hormone (CHH) of the Atlantic ghost crab Ocypode quadrata (Fabricius, 1787)

Cited by 32 publications

References 53 publications

Energy reserves mobilization: Strategies of three decapod species

Energy reserves mobilization: Strategies of three decapod species

Temperature influences the reproduction of fiddler crabs at the southern edge of their distribution

Protein and lipid requirement for the growth and reproduction of the peppermint shrimp Lysmata wurdemanni

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