Macrobrachium (Decapoda: Caridea: Palaemonidae) in the Contiguous United States: A Review of the Species and an Assessment of Threats to Their Survival

Bowles, David E.; Aziz, Karim; Knight, Charles

doi:10.1651/0278-0372(2000)020[0158:mdcpit]2.0.co;2

Cited by 35 publications

(53 citation statements)

References 23 publications

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“…Subgroup C (BLR-C; RB-C) contains shrimps with mature female parasites (with fully formed oostegites and marsupia) and mature male parasites. decades (since the 1930s), abundances and the commercial fishery have declined considerably, particularly in far-upstream populations of the MRS (Huner 1977;Bowles et al 2000). Besides anthropomorphic degradation of habitat, natural factors may also be affecting the sizes of populations of M. ohione.…”

Section: Discussionmentioning

confidence: 99%

“…The Ohio shrimp is endemic to coastal rivers in the central and southeastern United States, and previously occurred in abundance in the Mississippi River System (MRS) from as far north as the Missouri and lower Ohio Rivers down to the Gulf of Mexico (Holthuis 1952;Huner 1977;Taylor 1992;Bowles et al 2000;Barko & Hrabik 2004). Population density has drastically declined in the upper MRS from that of the 1930s (Taylor 1992;Conaway & Hrabik 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Relatively few M. ohione (B9) have been reported in the Ohio River since 1977 (Taylor 1992;Conaway & Hrabik 1997;Poly & Wetzel 2002). This decline is primarily attributed to anthropomorphic habitat disturbance, e.g., the effects of dams, levees, and wing dikes (Bowles et al 2000;Barko & Hrabik 2004). In the lower MRS, particularly in Louisiana, M. ohione is still abundant and an important bait shrimp; in the past, it sustained a commercial food fishery in both the lower and the upper MRS (Huner 1977;Truesdale & Mermilliod 1977).…”

Section: Introductionmentioning

confidence: 99%

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Infection of adult migratory river shrimps, Macrobrachium ohione, by the branchial bopyrid isopod Probopyrus pandalicola

Conner

Bauer

2010

Invertebrate Biology

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Abstract. Macrobrachium ohione is a migratory (amphidromous) river shrimp (Decapoda, Caridea) that may be parasitized by the branchial parasite Probopyrus pandalicola (Isopoda, Bopyridae). The parasite disrupts gonadal maturation and spawning in female shrimps, resulting in the total loss of reproduction. Shrimps are usually infected by bopyrid parasites during the late zoeal or early postlarval stages; in this study, we investigated the apparent parasite infection of adult shrimps. We analyzed the relationships between parasite body size (total length) and host shrimp body size (carapace length) to test the hypothesis that parasite infection of adult shrimps occurs during the shrimps' reproductive migrations. The results presented here indicate that infection of adult shrimps is common in M. ohione in the Atchafalaya and Mississippi Rivers, Louisiana, USA. In the two upriver sites sampled, Butte La Rose (BLR) and River Bend (RB), parasite size was not associated with host body size. In these locations, many parasitized adult M. ohione were infected with immature P. pandalicola (40.3% in BLR and 51.2% in RB), indicating that the shrimps were adults at the time of infection. A possible explanation is that when female shrimps enter the estuary to hatch larvae, they molt and spawn another brood. The smaller male shrimps that accompany the females downstream are also assumed to molt and continue growth. The intermediate host of the parasite is an estuarine copepod, and thus the parasite cryptoniscus larva that infects the host shrimp is primarily estuarine as well. Newly molted shrimps have soft cuticles, which may facilitate their infection by parasite cryptonisci. Our conclusion is that most infections of adult shrimps occur during their migration into estuarine waters, the primary habitat of infective parasite larvae, and that host vulnerability is probably increased following host ecdysis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Infection of adult migratory river shrimps, Macrobrachium ohione, by the branchial bopyrid isopod Probopyrus pandalicola

Conner

Bauer

2010

Invertebrate Biology

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“…It is one of six Macrobrachium species that inhabit coastal river systems emptying into the Gulf of Mexico and along the southeastern Atlantic coast of the United States (Bowles et al, 2000). All of these species have been assumed to be amphidromous (Bowles et al, 2000), primarily because of their geographic distribution and requirement of salt water for larval development (Dugan et al, 1975). Observations on one species, M. ohione, show that it is amphidromous, with both a female downstream hatching migration and an upstream juvenile migration after marine development (Bauer & Delahoussaye, 2008).…”

Section: Macrobrachium Ohione An Unusual Amphidromous Speciesmentioning

confidence: 99%

“…Instead of maximum upstream distances of several to a few hundred kilometers from the sea, as in most amphidromous shrimps, substantial reproductive M. ohione populations (with embryo-bearing females) were found as recently as the 1930's and 1940's as far north as 1500-2000 km from the sea (Gulf of Mexico) in the Mississippi/Ohio River System ( fig. 3) (Bowles et al, 2000;Bauer & Delahoussaye, 2008). Such a far-ranging distribution away from the sea in an amphidromous species (M. ohione) presents a puzzle.…”

Section: Macrobrachium Ohione An Unusual Amphidromous Speciesmentioning

confidence: 99%

Amphidromy And Migrations Of Freshwater Shrimps. I. Costs, Benefits, Evolutionary Origins, And An Unusual Case Of Amphidromy

Bauer

2011

New Frontiers in Crustacean Biology

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Many freshwater shrimps (Decapoda, Caridea) have amphidromous life histories, with extended planktonic larval development in the sea. Larvae either are hatched upstream to drift down to the sea or are carried and released there by females. After development, postlarvae (juveniles) must migrate back up to their adult freshwater habitat. An amphidromous life cycle thus involves long distance migrations between marine and fresh waters. Other freshwater shrimps have abbreviated (or direct) larval development (ALD) with a completely freshwater life cycle and without such migrations. The question of which life history pattern (amphidromy versus ALD) is ancestral in freshwater shrimps is discussed in terms of costs, benefits, and phylogeny. Competing hypotheses are presented to explain the unusual distribution of Macrobrachium ohione, an amphidromous shrimp with recently abundant populations located very far (>1500 km) from the sea.

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Forest conversion adversely affects native Macrobrachium shrimp assemblages in tropical Malaysian streams

Gan

Tan

Ahmad

et al. 2022

Aquatic Conservation

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1. Commodity-driven forest conversion represents one of the most severe threats to freshwater biodiversity in Southeast Asia, notably causing population declines and the extinction of freshwater fish species.2. Although a variety of freshwater taxa are likely to be adversely affected by forest conversion, little is known about the impact on ecologically and economically important invertebrates such as decapod crustaceans.3. This study evaluated the impact of forest conversion and land-use change on freshwater Macrobrachium shrimp species, using species richness, abundance, and environmental data collected from 20 streams across southern Peninsular Malaysia.Streams were located in three types of landscape: forest; oil palm plantation; and mixed land use, comprising young secondary forest, small-scale plantations, patches of open and sparsely vegetated areas, and agricultural fields and clearings.4. Generalized linear models showed that even incomplete change from forest habitats to mixed land use and oil palm plantation resulted in significantly lower Macrobrachium native species richness and higher non-native species abundance.Native species richness was positively correlated with canopy cover, leaf litter, substrate size, and dissolved oxygen, and was negatively correlated with water temperature and conductivity. Native species richness was also negatively correlated with non-native species abundance, with non-native species abundance increasing along the human disturbance gradient.5. These results highlight the need for riparian habitat protection to conserve native Macrobrachium and limit the spread of non-native species. A management priority should be to maintain or restore optimum instream habitat conditions for shrimps, which would also benefit fish and other benthic macroinvertebrates. Suitable riparian management requires substantial support and funding from multiple stakeholders, but it can be aligned with other catchment-based strategies to optimize the use of limited resources available for freshwater biodiversity conservation.

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Macrobrachium (Decapoda: Caridea: Palaemonidae) in the Contiguous United States: A Review of the Species and an Assessment of Threats to Their Survival

Cited by 35 publications

References 23 publications

Infection of adult migratory river shrimps, Macrobrachium ohione, by the branchial bopyrid isopod Probopyrus pandalicola

Infection of adult migratory river shrimps, Macrobrachium ohione, by the branchial bopyrid isopod Probopyrus pandalicola

Amphidromy And Migrations Of Freshwater Shrimps. I. Costs, Benefits, Evolutionary Origins, And An Unusual Case Of Amphidromy

Forest conversion adversely affects native Macrobrachium shrimp assemblages in tropical Malaysian streams

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