Dead Shrimp Blues: A Global Assessment of Extinction Risk in Freshwater Shrimps (Crustacea: Decapoda: Caridea)

Grave, Sammy De; Smith, Kevin G.; Adeler, Nils A.; Allen, Dave J.; Álvarez, Fernando; Anker, Arthur; Cai, Yong; Carrizo, Savrina F.; Klotz, Werner; Mantelatto, Fernando L.; Page, Timothy J.; Shy, Jhy-Yun; Villalobos, José Luis; Wowor, Daisy

doi:10.1371/journal.pone.0120198

Cited by 109 publications

(72 citation statements)

References 26 publications

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“…The genus Caridina H. Milne Edwards, 1837, comprising 302 species and mainly present in the Indo-Pacific region, is the most diversified genus of the Atyidae (De Grave et al 2015;De Mazancourt et al 2018). Collecting evidence-based information is the foundation for addressing urgent global challenges in biodiversity conservation and sustainable management of native species.…”

Section: Introductionmentioning

confidence: 99%

Two freshwater shrimp species of the genus Caridina (Decapoda, Caridea, Atyidae) from Dawanshan Island, Guangdong, China, with the description of a new species

Chen

Zheng

et al. 2020

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A faunistic and ecological survey was conducted to document the diversity of freshwater atyid shrimps of Dawanshan Island. Two species of Caridina that occur on this island were documented and discussed. One of these, Caridina tetrazonasp. nov. is described and illustrated as new to science. It can be easily distinguished from its congeners based on a combination of characters, which includes a short rostrum, the shape of the endopod of the male first pleopod, the segmental ratios of antennular peduncle and third maxilliped, the slender scaphocerite, and the absence of a median projection on the posterior margin. Live individuals of the new species display a unique coloration pattern with four dark blue transverse bands on the body, and can be easily recognized in the field. So far, despite considerable surveying efforts made on neighboring islands, this species has only been found from a small stream on Dawanshan Island, which suggests that it may have a very limited range, probably endemic to Dawanshan Island. Molecular characteristics of the mitochondrial cytochrome c oxidase subunit I (COI) demonstrate that this species shows sufficient interspecific divergence from its congeners, including C. serrata Stimpson, 1860, which was found in four streams on Dawanshan Island, and has been previously reported on the neighboring islands of Hong Kong, Dong’ao, Wailingding, and Guishan.

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Section: Introductionmentioning

confidence: 99%

Two freshwater shrimp species of the genus Caridina (Decapoda, Caridea, Atyidae) from Dawanshan Island, Guangdong, China, with the description of a new species

Chen

Zheng

et al. 2020

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“…In 2014, the production of crustaceans from aquaculture amounted to 6.9 million tonnes, with an estimated value of US$36.2 billion (FAO, ). Crustaceans are cultured not only for human consumption, but also for a wide variety of commodities and activities, among which aquarium trade for ornamental species has become a very appealing commercial enterprise in recent years (De Grave et al., ; Leal, Rocha, Rosa & Calado, ). Their ornamental status is owed mainly to their beautiful colouration, and brightly coloured red, orange or yellow specimens are usually preferred.…”

Section: Introductionmentioning

confidence: 99%

Assessment of potential trade‐off between maternal colouration and offspring quality in the ornamental “red cherry” shrimpNeocaridina davidi(Bouvier)

Sganga

Greco

2019

Aquac Res

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Maternal colouration based on carotenoids has been proposed to negatively affect offspring quality in several taxa, since females might trade off their limited carotenoid resources between body colouration and eggs. This study investigated in the ornamental “red cherry” shrimp (Neocaridina davidi) the relationship between maternal colouration and female reproductive performance, as well as offspring quality. Females selected displayed a broad array of body colour, from less coloured to intensely red coloured and were paired with transparent males. The first two spawning events of each female were studied and compared. The number of newly hatched juveniles was associated to maternal weight, but not to maternal colouration. Offspring quality was measured in terms of survival at the end of the 90‐day growth period, weight and length increment for 0–30 days and 30–60 days periods, and protein, lipid and glycogen contents in 30‐day‐old offspring. Yet, neither of these variables was associated to maternal colouration. These results indicate that there is no trade‐off between maternal colouration and offspring quality in this species. Furthermore, no association was found between maternal and offspring colouration, evaluated at a similar age. However, body colouration in 180‐day old females was significantly higher than in 90‐day‐old females, indicating that female colouration is strongly influenced by age.

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“…Many human interventions have resulted in an alarming loss of critical ecosystems (Davidson, ), steep declines in species populations (World Wildlife Fund ‐ WWF, ) and one in three freshwater‐dependent species facing a high risk of extinction (Collen et al ., ). Specifically, freshwater‐dependent groups such as amphibians, shrimps and fish are not only facing high levels of extinction risks (Carizzo et al ., ; De Grave et al ., ; Loyola et al ., ), but have several species that have already become extinct (IUCN, ). In spite of this crisis, freshwater biodiversity continues to receive less attention compared with its terrestrial and marine counterparts.…”

Section: Introductionmentioning

confidence: 95%

Protected areas and imperilled endemic freshwater biodiversity in the Western Ghats Hotspot

Raghavan

Das

Nameer

et al. 2016

Aquatic Conservation

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1. Fresh waters and their resources continue to be one of the most imperilled ecosystems on Earth, yet very little emphasis has been placed on identifying and developing in situ conservation mechanisms, such as freshwater protected areas. In the southern region of the Western Ghats Hotspot, India, a globally important eco-region harbouring unique freshwater taxa, there has been very little effort to identify the role played by terrestrial protected areas in freshwater biodiversity conservation.2. Around 130 species of freshwater-dependent fauna belonging to five taxonomic groups (fish, amphibians, crabs, shrimps and odonates) are endemic to the region, of which 25% have a high risk of extinction. More than half of the 130 species are not represented in the current protected area (PA) network, and the distributions of 12 endemic and threatened species (10 fish, one amphibian and one shrimp), of which five are single-location species, also fall wholly outside the PA network.3. Although 44% (58 species) of endemic freshwater-dependent fauna of the region occur either wholly (25 species) or partly (33 species) inside terrestrial PAs, they are rarely subject to species-specific management or monitoring plans.4. To improve freshwater biodiversity conservation at the local level, and to achieve global conservation targets, such as the Convention on Biological Diversity's Aichi targets (for example targets 11 and 12), the PA network of the region should be doubled. This may be achieved by expanding the area of existing PAs to incorporate priority sites for freshwater taxa, creating new PAs by specifically targeting areas that are of significance to freshwater biodiversity, and developing and implementing freshwater-specific management plans in existing PAs of the region.

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Dead Shrimp Blues: A Global Assessment of Extinction Risk in Freshwater Shrimps (Crustacea: Decapoda: Caridea)

Cited by 109 publications

References 26 publications

Two freshwater shrimp species of the genus Caridina (Decapoda, Caridea, Atyidae) from Dawanshan Island, Guangdong, China, with the description of a new species

Two freshwater shrimp species of the genus Caridina (Decapoda, Caridea, Atyidae) from Dawanshan Island, Guangdong, China, with the description of a new species

Assessment of potential trade‐off between maternal colouration and offspring quality in the ornamental “red cherry” shrimpNeocaridina davidi(Bouvier)

Protected areas and imperilled endemic freshwater biodiversity in the Western Ghats Hotspot

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