Overview

Brief Summary

Biology

The adults spawn in May and June, and the eggs are deposited into depressions in the riverbed. As in river lampreys, a number of males mate with one female (5). The larvae (known as ammocoetes) live for three to seven years in the sand or mud, and filter organic matter from the water for nourishment (5). As they mature they develop eyes and the sucker-like mouth, and as sexual maturity is approached they stop feeding entirely. A few weeks after spawning the adults die (5). Unlike river and sea lampreys this species does not migrate out to sea, but spends the whole life-cycle in fresh water (it is not anadromous) (4).
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Description

Lampreys are some of the most primitive vertebrates alive today, they are known as cyclostomes, which means 'round mouths' and refers to the fact that they are jawless, having instead a round sucker-like mouth. A further primitive characteristic is that the skeleton consists of cartilage and not bone (2). Lampreys are similar in shape to eels, and have a series of uncovered round gill openings (known as gill pores) on the sides of the head and a single nostril on the upper surface of the head (4). The brook lamprey is the smallest of the British lampreys (4), and has two dorsal (back) fins which are in close contact (2). It is grey-blue to green in colour and during the spawning period the areas around the mouth and the anal opening become rusty red (5). Brook lampreys are also known as 'pride' (6).
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Comprehensive Description

Biology

Found in the lowland, piedmont and montane zone in clear, well oxygenated brooks (Ref. 59043). Lives exclusively in freshwater; in middle and upper reaches of small streams and rivers, occasionally in lakes. Larvae lie buried in the substrate while adults live in the open water. Larvae of this species can serve as mid-term bio-indicators (Ref. 57699). They live in detritus-rich sands or clay sediments (Ref. 59043). Filter feeding larvae, non-feeding adults (= non-parasitic). Reproduction takes place upstream, from April to May. Because of its small size and the mediocre quality of its meat, it is rarely fished. The larvae are utilized as bait (Ref. 30578).
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Distribution

Range Description

Great Britain north to Scottish highlands, rivers draining to North Sea north to Scotland and about Stavanger (Norway), Baltic Sea basin, Atlantic as far south as Adour drainage (France, Spain) and an isolated population in Tagus (Portugal), Mediterranean basin in France and western Italy (south to about Tevere drainage). Locally in Ireland, upper Volga, upper Danube and some of their tributaries, and Pescara drainage on Adriatic coast of Italy.
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Europe: Great Britain north to Scottish highlands, rivers draining to North Sea north to Scotland and about Stavanger (Norway), Baltic Sea basin, Atlantic as far south as Adour drainage (France, Spain) and isolated populations in Sado, Tagus and Douro drainages (Portugal), Mediterranean basin in France and western Italy (south to about Cilento drainage). Locally in Ireland, upper Volga, upper Danube and some of their tributaries and Pescara drainage on Adriatic coast of Italy. Appendix III of the Bern Convention (protected fauna).
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Europe.
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Range

The brook lamprey has declined in some areas of the UK but is relatively widespread and common in parts of England. In Scotland it is generally absent north of the Great Glen (7). In Europe it extends from Sweden to France (6), and has declined in parts of this range (7).
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
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Size

Maximum size: 200 mm TL
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Max. size

20.0 cm TL (male/unsexed; (Ref. 2163)); max. reported age: 7 years (Ref. 12315)
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Diagnostic Description

Poorly developed fins, dorsal fins in contact in mature adults, blue-green back, yellow flanks, white ventral portion.Sigmund Freud (Ref. 72450, 72451 ) described the development of the central nervous system of brook lamprey.
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Ecology

Habitat

Seine River Demersal Habitat

This taxon is one of a number of demersal species in the Seine River system of Western Europe. Demersal river fish are found at the river bottom, feeding on benthos and zooplankton

The Marne and Yonne exhibit the greatest torrential flows, due to the percentage of their courses underlain by impermeable strata, in combination with the river gradients. Although the Loing manifests the highest percentage of impermeable strata of all the tributaries, its low gradient mitigates against torrential velocities. Thus the majority of the Seine and its tributaries exhibit a relaxed generally even flow rate.

Seine water pollutant loads of heavy metals, nutrients, sediment and bacteria are relatively high, especially influnced by wastewater and surface runoff from Paris and its suburbs. Parisian pollutant loadings are noted to be particularly high during periods of high rainfall, not only due to high runoff, but also from the inadequate sewage treatment facilities in periods of high combined wastewater/stormwater flow.

Heavy metal concentrations at Poses weir reveal the following levels: copper, 1.9 milligrams per liter; cadmium, 32 mg/l; and lead, 456 mg/l. Concentrations of zinc are also quite high, making the Seine Estuary one of the most highly contaminated estuaries in the world with respect especially to lead and cadmium. Significant amounts of toxic pollutants are also attached to sediments deposited in the Seine during the last two centuries, including mercury, nickel, chromium, toluene, DDT and a variety of herbicides and pesticides. Downriver from Paris, significant quantites of ammonium are discharged into the Seine from effluent of the Achères wastewater treatment plant.

There are a total of 37 fish species inhabiting the Seine, and another two taxa that are known to have been extirpated in modern times. Two of the largest aquatic fauna known to have lived in the Seine are now locally extinct: the 500 centimeter (cm) long sturgeon (Acipenser sturio) and the 83 cm long allis shad (Alosa alosa).

The largest extant native demersal (species living on or near the river bottom) taxa in the Seine are:

the 133 cm European eel (Anguilla anguilla);

the 150 cm northern pike (Esox lucius);

the 120 cm sea lamprey (Petromyzon marinus); and,

the 152 cm Burbot (Lota lota).

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Habitat and Ecology

Habitat and Ecology
Habitat:
Found in the lowland, piedmont and montane zone in clear, well oxygenated brooks. Ammocoetes live in detritus-rich sands or clay sediments.

Biology:
Non-predatory, freshwater resident. Timing of spawning season depends on latitude when temperature exceeds 9°C, starting in February in Italy and mid-June in Finland. Spawning individuals cease their normal daylight avoidance reaction and reproduce on sunny days. Males dig a shallow nest in habitats with moderate current. Spawners form large aggregations. Dies after spawning. Single individuals may survive until September. Ammocoetes stage usually lasts 21/2-3 1/2 years. Feeds on detritus and micro-organisms, starts metamorphosis in June-July (fully transformed individuals usually found in September), overwinters and spawns following spring. There are indications that L. planeri might be an heterogeneous (polyphyletic) assemblage of several lineages evolved independently from different populations of L. fluviatilis (see family introduction).

Systems
  • Freshwater
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Environment

demersal; potamodromous (Ref. 51243); freshwater
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This freshwater species lives in small streams, rivers and lakes (6) with clean gravel beds to spawn in and silt or sand for the larvae (7).
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Migration

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Trophic Strategy

Adults do not feed after metamorphosis (Ref. 6258). The species inhabits mostly submontane brooks and rivulets, the bed is mostly natural, the bottom sandy or gravelly with muddy places (Ref. 57699).
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Life History and Behavior

Life Cycle

They build small depressions in the gravel in the river bed in which they spawn. Adults die after spawning. Larvae hatch after 3-4 days.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Lampetra planeri

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 18 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

CTAGCAGGAAATTTAGCCCACACAGGGGCCTCTGTTGACTTA---ACAATTTTCTCCCTTCACCTAGCTGGTATTTCATCAATTCTAGGGGCAGTCAACTTTATCACAACAATTTTTAATATAAAGCCCCCAACTATAACACAATACCAAATTCCTTTATTTGTTTGATCCGTTTTAATTACTGCAGTCCTCCTTCTTCTATCACTTCCTGTACTTGCAGCC---GCCATTACTATACTTTTAACAGATCGTAATTTAAATACATCTTTCTTCGACCCTGCAGGGGGAGGAGACCCAATTCTTTACCAACATCTATTTTGATTCTTTGGACATCCTGAAGTTTATATTCTAATCTTACCAGGCTTTGGAATTATCTCTCATGTAGTTGCCTATTACTCCGGAAAAAAA---GAACCATTTGGATATATAGGAATAGTCTGAGCAATAATGGCTATTGGGTTGCTAGGGTTTATTGTATGAGCCCATCACATATTTACAGTAGGAATAGATGTTGATACACGAGCCTACTTTACATCAGCCACAATAATTATTGCCATCCCAACAGGAGTTAAAGTTTTTAGCTGACTA---GCTACTCTCCATGGCGGA---AAAATCGTATGACACACCCCCATACTATGGGCCTTAGGCTTTATTTTCTTATTCACTGTAGGAGGACTCACCGGAATCGTTTTATCCAACTCATCACTAGATATTATCCTTCATGATACTTACTATGTAGTAGCCCACTTCCATTATGTA---TTATCCATAGGAGCTGTTTTCGCAATCATGGCGGGCTTCGTCCACTGATTCCCACTATTCACGGGCTATACACTTAACGAAACCTGATCAAAAGCACACTTTGTAATTATGTTTACTGGTGTAAATCTTACATTCTTCCCCCAA
-- end --

Download FASTA File
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Statistics of barcoding coverage: Lampetra planeri

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 20
Specimens with Barcodes: 32
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Freyhof, J.

Reviewer/s
Kottelat, M. & Smith, K.

Contributor/s
Kottelat, M.

Justification
Still rare in some areas, but populations have markedly recovered following earlier pollution problems in central Europe.

European Union 27 = LC. Same rationale as above.


History
  • 2008
    Least Concern
    (IUCN 2008)
  • 2008
    Least Concern
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Status

Listed on Annex III of the Bern Convention and Annex II of the EC Habitats Directive (3).
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Population

Population
Abundant.

Population Trend
Unknown
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Threats

Major Threats
No major threats known.
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Least Concern (LC)
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It is likely that the brook lamprey has been affected by pollution, river engineering works and changes in land use (2).
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Management

Conservation Actions

Conservation Actions
No information available.
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Conservation

A number of areas have been proposed as candidate Special Areas of Conservation (SACs) for the brook lamprey. The areas chosen support healthy populations and reflect the geographical range of the brook lamprey in the UK as well as the range of habitat features required by the species (7). Although this should help to improve the conservation status of this primitive fish in the UK, it has been noted that further measures will be required to maintain the species (7). Draft Action Plans have been produced for the three lamprey species found in the UK in order to guide their conservation (2). The Life in UK Rivers Project is helping to conserve this species.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: public aquariums; bait: usually
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Wikipedia

European brook lamprey

The European brook lamprey (Lampetra planeri, also known as the brook lamprey and the western brook lamprey) is a small European lamprey species that exclusively inhabits freshwater. This species should not be confused with the North American species Lampetra richardsoni, which is also called the Western brook lamprey.

Description[edit]

This lamprey is the most common of the northern European species and is also the smallest. Adult brook lamprey measure from 12 to 14 cm (4.7 to 5.5 in). The very elongate body is dark blue or greenish above, lightening to yellowish off-white on the sides and pure white below. Like all lampreys these fish lack paired fins and possess a circular sucking disc instead of jaws. They have a single nostril and seven small gill openings on either side behind the eye. The teeth are blunt and they can be told from the closely related river lamprey (Lampetra fluviatilis) by the fact that the two dorsal fins are more closely linked together.[1]

Distribution[edit]

Although they are found in small streams, as their name suggests, they are also found in larger rivers throughout northern Europe as well as southern France, Italy, Sardinia, the Balkans and the upper reaches of the Volga. It is also found in southeast Alaska.

Biology[edit]

Unlike most species of lamprey, the adults do not migrate to the sea and do not have a parasitic phase. Adult brook lamprey do not feed and in springtime spawn in gravel close to the soft sediment in which they were previously resident. Adult brook lamprey spawn in small groups and die soon after spawning. The eggs hatch within a few days, after which the young larvae bury themselves in soft sediment with only the mouth protruding. The young lampreys are blind filter feeders, feeding on detritus and other organic matter for three to five years before maturing. Metamorphosis begins in the third or fourth year and is complete after the maturation of the gonads. Eyes and suction disk also develops during this time, while the intestinal tract degenerates and loses its function. The full transformation can take up to a year.

References[edit]

  1. ^ "Brook lamprey: Lampetra planeri". NatureGate. Retrieved 2013-12-15. 
  • Animal, Smithsonian Institution, 2005
  • Fishbase
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