Natural food, foregut clearance-rate and activity of the crab Scylla serrata

Hill, B. J.

doi:10.1007/bf00390752

Cited by 167 publications

(105 citation statements)

References 12 publications

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“…Various species of crabs studied earlier viz., Scylla serrata (Hill, 1976;Joel and Raj, 1986;Prasad and Neelakantan, 1988); Callinectus sapidus (Laughlin, 1982); Scylla tranquebarica (Joel and Raj, 1986) and Thalamita crenata (Cannici et al, 1996) were found to consume mixed diets of polycheates, crustaceans, molluscs and fishes. Whenever food was found in stomach, it always consisted of a mixture of various groups.…”

Section: Resultsmentioning

confidence: 99%

Taxonomy, length-weight relationship, food and feeding habits of flower moon crab Matuta planipes Fabricius, 1798 from coastal waters of Gopalpur, Odisha, India

Behera

Tenjing²,

Das³

et al. 2017

Indian J. Fish.

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Taxonomy, length-weight relationship, food and feeding habits of flower moon crab Matuta planipes Fabricius, 1798 from coastal waters of Gopalpur, Odisha, India ABSTRACTThe relationship between carapace length (CL), carapace width (CW) and total weight (TW) in the flower moon crab Matuta planipes Fabricius, 1798 was studied and found to be CL = 0.144+1.319 CW and CL = 0.356+1.273 CL for males and females respectively. In case of the carapace width and total weight, the relationships were: TW = 0.272 CW 3.011 and TW = 0.474 CW 2.555 for males and females respectively. The relationships of carapace length and total weight were: TW = 0.128 CL 2.917 for males and TW = 0.184 CL 2.650 for females. A linear pattern was found between the relationship of CL and CW for M. planipes, whereas a curvilinear pattern was found between the relationship of CL/CW and TW in the present study. It was also observed that M. planipes is an opportunistic omnivore, seaweed being the most dominant food item followed by crustaceans, seagrass, amphipods and miscellaneous matter.

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Section: Resultsmentioning

confidence: 99%

Taxonomy, length-weight relationship, food and feeding habits of flower moon crab Matuta planipes Fabricius, 1798 from coastal waters of Gopalpur, Odisha, India

Behera

Tenjing²,

Das³

et al. 2017

Indian J. Fish.

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“…Determination of crustacean diets based on gut contents is associated with several wellrecognized limitations, due to the effects of mastication and under-representation of readily homogenised food items (e.g. Hill, 1976 These results imply that although there are overall trophic differences among species, individuals within species can exhibit a range of foraging strategies. Work on other phenotypically diverse lacustrine species flocks has shown that closely related endemics often exploit a broader range of resources than what would be expected based on their specialized feeding morphologies (Liem &Osse, 1975;Liem, 1980;Genner et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Ecological correlates of species differences in the Lake Tanganyika crab radiation

Marijnissen

Michel

Kamermans

et al. 2008

Patterns and Processes of Speciation in Ancient Lakes

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The endemic crabs of Lake Tanganyika include a phenotypically diverse clade that exhibits recent divergence and low phylogenetic species resolution. There are indications that ecological niche segregation has played a prominent role in the divergence of this clade. We used habitat surveys, gut content analyses and stable isotope analyses to test the extent to which morphological species are ecologically different. Our data show some interspecific segregation in depth, substrate type and mean stable isotope signatures. At the same time, a considerable level of ecological niche overlap is evident among species of Platythelphusa that coexist in rocky littoral habitats. We consider these results in the framework of adaptive radiation theory, and we discuss general ramifications for the maintenance of species diversity in Lake Tanganyika.

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“…The dominance of porcellanids was likely constrained by their suspension-or detritusfeeding habit (Trager et al 1992, Achituv andPedrotti 1999). On the other hand, Kyomo (1999) reported Pilumnus vespertilio (Fabricius 1793) as omnivorous, tending to herbivory, and a common feeding habit among brachyurans (see Hill 1976, Barros et al 2008. Although pilumnids and porcellanids shared the same habitat and were both abundant, they avoid competition by exploiting different food sources.…”

Section: Brachyurans and Anomurans Associated With S Unicornismentioning

confidence: 99%

Brachyuran and anomuran crabs associated with Schizoporella unicornis (Ectoprocta, Cheilostomata) from southeastern Brazil

Alves

Barros-Alves

Lima

et al. 2013

An. Acad. Bras. Ciênc.

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The main goals of this investigation were to describe the community structure of anomuran and brachyuran crabs inhabiting reefs constituted by colonies of Schizoporella unicornis, and to provide a species importance ranking for this community. Collections were carried out on S. unicornis reefs at two-month intervals from May 2003 to May 2004, in the rocky sublittoral of the southeastern Brazilian coast. Relative abundance and occurrence were used to rank these species in the hierarchy importance. A total of 2,018 individuals were obtained, in 11 families, 22 genera and 31 species. Porcellanidae and Pilumnidae were the most abundant families, comprising respectively almost 60% and 15% of individuals sampled. The species ranking indicated four main groups A, B, C and D, with group A subdivided. Subgroup A1 contained 9 species, including the species of greatest ecological importance for community regarding abundance and occurrence. The great abundance of crabs associated with S. unicornis seems to be the result of its recognized importance during the crab developmental cycle, and as shelter and food for some Decapod species. These observations reveal the importance of conserving the areas occupied by these reef colonies, which appear to be an important environment for maintaining local biodiversity.

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Natural food, foregut clearance-rate and activity of the crab Scylla serrata

Cited by 167 publications

References 12 publications

Taxonomy, length-weight relationship, food and feeding habits of flower moon crab Matuta planipes Fabricius, 1798 from coastal waters of Gopalpur, Odisha, India

Taxonomy, length-weight relationship, food and feeding habits of flower moon crab Matuta planipes Fabricius, 1798 from coastal waters of Gopalpur, Odisha, India

Ecological correlates of species differences in the Lake Tanganyika crab radiation

Brachyuran and anomuran crabs associated with Schizoporella unicornis (Ectoprocta, Cheilostomata) from southeastern Brazil

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