Common logperch

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Common logperch
Percina caprodes.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Percidae
Genus: Percina
Species:
P. caprodes
Binomial name
Percina caprodes
(Rafinesque, 1818)
Synonyms [2]
  • Catostomus fasciolarisRafinesque, 1820
  • Percina manitou D.S. Jordan, 1877
  • Percina (Perca) nebulosaHaldeman, 1842
  • Pileoma semifasciatum DeKay, 1842
  • Pileoma zebra Agassiz, 1850

The common logperch (Percina caprodes), sometimes simply known as the logperch, is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. Like other logperches, it has the typical vertical barring along the flank and a subterminal mouth.

Contents

This is the most widespread logperch, commonly found in large parts of the eastern United States and Canada. Like other logperches, they inhabit clear, gravelly streams and lakes, reaching a maximum size of about 18 centimeters (7.1 in) and a maximum age of about 3 years. They play a key role in the reproduction of the snuffbox mussel (Epioblasma triquetra). [3]

Abstract

The common logperch is a darter species naturally occurring as far north as the St. Lawrence River in Canada, as far west as the Great Lakes, and south throughout the Mississippi River down to the Rio Grande. The common logperch is also found as far west as California, where it was introduced in 1953. [4] Logperch are benthic, nonguarding egglayers, whose embryos drift to lentic areas after hatching. The population distribution of the common logperch may be under increased predatory pressure from stocked saugeyes. [5] Dams may also exert stress on the fish, by obstructing migratory pathways and inhibiting gene flow. [6] Percina caprodes have also been found to be extremely susceptible to nitrite poisoning. [7] While the common logperch is not currently listed as a threatened or endangered species, humans should be aware of our negative impact on the species, and the ways in which we can minimize this impact; most notably, by limiting the construction of dams, by increasing oxygen levels in the tailwaters of existing dams, by limiting the number of predatory gamefish stocked (such as saugeye), by decreasing the amount of silt and debris deposited in streams, and by monitoring nitrite levels in common logperch habitats. Also, a monitoring plan should be created, in which a routine census is taken of the fish in each area of its distribution, and in which invasive species that outcompete the common logperch, such as Neogobius melanostomus , are removed. [8]

Geographic distribution of species

Percina caprodes 1.jpg

The common logperch exhibits a rather large geographic distribution and range. The common logperch occurs naturally as far north as the St. Lawrence River system in Quebec, and as far south as the Rio Grande system in southern Texas and northern Mexico. Westwards, logperch are most heavily distributed in the Mississippi River drainage system, and their range extends eastward in freshwater habitats all the way to the Atlantic Ocean. Currently, however, the range of the common logperch has been artificially extended into California, where it was released into the wild in 1953. [4] The range of the common logperch, while impressive, has nevertheless been reduced due to the construction of dams, [6] the introduction of stocked predatory species such as walleye and sauger, [5] the introduction of invasive competitors (specifically Neogobius melanostomus), [9] and possibly by erosion around drainage systems.

Ecology

The common logperch, like most darter species, dwells in benthic habitats where it forages for food. It prefers clear, swift water with rocky or sandy substrate; however, it may be found in any temperate water in their geographic distribution. Its diet consists primarily of benthic invertebrates, which it hunts by flipping over stones with its snout. It appears that logperches are not especially fastidious when foraging, and that they are actually very opportunistic feeders. [10] That being said, chironomids constitute the largest part of a darter's diet (~54% volumetric contribution), whereas trichopterans and simuliids constituted roughly 15% and 22% volumetric contribution, respectively. [10] However, prey consumption can vary largely by location and season. Some competition surely exists between the common logperch and other benthic species with the same native distribution and diet. It is an invasive species, Neogobius melanostomus (round goby), however, that poses the largest competitive threat to the common logperch. Studies indicate that this is most likely because Neogobius melanostomus better utilizes its space in the environment for shelter, decreasing the range of the common logperch, because Neogobius melanostomus is also a more aggressive than the relatively passive common logperch, and because N. melanostomus reproduces at a higher rate than the common logperch. [9] Natural predators of the common logperch consist most notably of carnivorous piscivores from the Sander, Micropterus, and Esox genera. [5]

Human induced changes that might reduce the abundance of the common logperch include the excess stocking of piscivorous fish species, the damming of rivers, introduction of chemicals into watersheds, and erosion caused from human activities. While the top-down effects the addition of excess predators can cause on prey species are relatively well studied, the effects and mechanisms of the other aforementioned human activities may not be so clear.

Life history

The common logperch does not reach sexual maturity until approximately 2 years of age. The common logperch spawns numerous times in the warmer months of the year, typically during spring and summer. [11] They lay small demersal adhesive eggs that stick between rocks and substrate . Because of this, logperch tend to spawn in shallow rocky shoals, with high oxygen availability. Upon hatching, the pelagic embryos drift to lentic areas where plankton are more abundant in order to feed. Logperch eggs hatch much earlier than typical darter eggs. Thus, the common logperch has maintained its ancestral reproductive tendencies, and therefore has not evolved any new adaptations in comparison to other darter species. [12] Some human-induced changes with negative effects on the life history of the common logperch include the construction of dams and erosion around water drainages.

Current management

The common logperch is currently not a threatened or endangered fish species. Consequently, no apparent steps are being taken to manage the species.

While logperches are not currently a threatened species, several human-created changes are negatively influencing the common logperch. One of these human-induced changes is the construction of dams. Dams are detrimental to logperch for numerous reasons. Dams typically create less oxygen in their tailwaters. The water pushed into dam tailwaters comes from oxygen-poor parts of the dam's reservoir. This lack of oxygen can cause undue stress on the lungs of common logperch larvae which require oxygen rich water. [12] Large amounts of silt created by the constant change of water flow by dams for hydroelectric generation is also detrimental to logperch species. The rocky substrate where Logperch hunt and spawn are covered and masked by these silt deposits. Human-initiated erosion also affects logperch. As a result, the common logperch obtains food less efficiently, and cannot spawn as efficiently.

The overuse of pesticides and fertilizers near watersheds can also have a deleterious effect on the common logperch by killing or altering aquatic insect life, and by increasing nitrite levels. But perhaps the most deleterious impact on the common logperch comes from the introduction of the round goby, Neogobius melanostomus, which outcompetes it. [9] Through careful farm and land management, the introduction of chemicals to watersheds could be greatly reduced. Erosion can largely be avoided by halting deforestation, and the induction of invasive species may be reduced simply by better informing the public of the detrimental effects caused by releasing non-native species into the wild.

Taxonomy

The common logperch was first formally described as Sciaena caprodes in 1818 by the French polymath Constantine Samuel Rafinesque (1783-1840) with the type locality given as the Ohio River. [13] Samuel Stehman Haldeman created Percina as a subgenus of Perca and he described Perca (Percina) nebulosa was its only species, this is a synonym of P. caprodes. This means that the common logperch is the type species of the genus Percina. [14]

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<i>Percina</i> Genus of fishes

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References

  1. ↑ NatureServe (2013). "Percina caprodes". IUCN Red List of Threatened Species . 2013: e.T202572A18231706. doi: 10.2305/IUCN.UK.2013-1.RLTS.T202572A18231706.en . Retrieved 20 November 2021.
  2. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Percina". Catalog of Fishes . California Academy of Sciences . Retrieved 31 October 2020.
  3. ↑ Stokstad, E (16 November 2012). "Nearly Buried, Mussels Get a Helping Hand". Science. 338 (6109): 876–8. Bibcode:2012Sci...338..876S. doi:10.1126/science.338.6109.876. PMID   23161968.
  4. 1 2 Cooper, JE (1978). "Eggs and Larvae of the Logperch, Percina caprodes". The American Midland Naturalist. 99 (2): 257–269. doi:10.2307/2424804. JSTOR   2424804.
  5. 1 2 3 Denlinger, J; Hale; Stein, R A (2006). "Seasonal consumptive demand and prey use by stocked saugeyes in Ohio reservoirs". Transactions of the American Fisheries Society. 135 (1): 12–27. doi:10.1577/t05-029.1. hdl: 1811/36713 .
  6. 1 2 Haponski, A E; Marth, T A; Stepien, C A (2007). "Genetic divergence across a low-head dam:a preliminary analysisusing logperch and greenside darters". Journal of Great Lakes Research. 33 (2): 117–126. doi:10.3394/0380-1330(2007)33[117:GDAALD]2.0.CO;2. S2CID   55491789.
  7. ↑ Lewis, W M; Morris, D P (1989). "Toxicity of Nitrite to Fish: A Review". Transactions of the American Fisheries Society. 115 (2): 183–195. doi:10.1577/1548-8659(1986)115<183:TONTF>2.0.CO;2.
  8. ↑ Bergstrom, M; Mensinger, A (2009). "Interspecific resource competition between the invasive round gobe and three native species: logperch, slimy sculpin, and spoonhead sculpin". Transactions of the American Fisheries Society. 138 (5): 1009–1017. doi:10.1577/t08-095.1.
  9. 1 2 3 Balshine, S; Verma, A; Chant, V; Theysmeyer, T (2005). "Competitive interactions between round gobies and logperch". Journal of Great Lakes Research. 31 (1): 68–77. doi:10.1016/s0380-1330(05)70238-0.
  10. 1 2 Alford, J B; Beckett, D C (2007). "Selective predation by four darter (Percidae) species on larval chironomids (Diptera) from a Mississippi stream". Environmental Biology of Fishes. 78 (4): 353–364. doi:10.1007/s10641-006-9159-4. S2CID   2779346.
  11. ↑ Platania, S. 1990. Reports and verified occurrence of logperches in Colorado. Southwestern Naturalist. 35:87-88
  12. 1 2 Paine, M D; Balon, E K (1984). "Early development of the northern logperch, Percina caprodes semifasciata according to the theory of saltatory ontogeny". Environmental Biology of Fishes. 11 (3): 173–190. doi:10.1007/bf00000463. S2CID   22658108.
  13. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Sciaena caprodes". Catalog of Fishes . California Academy of Sciences . Retrieved 31 October 2020.
  14. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Percina". Catalog of Fishes . California Academy of Sciences . Retrieved 31 October 2020.
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