337:
slows down further and the rate of nest advancement becomes more variable. At the entrance of the nest (the end nearest the base of the blade) the surface layer of the blade is grazed by the amphipod while at the other end of the nest the central tissue of the blade is also consumed. The oldest part of the blade becomes senescent and sloughs off. The amphipod does not occupy the nest continuously but sometimes moves elsewhere on the host kelp, leaving a small grazing scar to show where it has foraged. Sometimes the nest is abandoned and a new nest may be built in a different location. Researchers studying this amphipod (Cerda, Hinojosa & Thiel, 2012) hypothesised that the position chosen for the nest might be a location where the maximum nutritional value of the tissue coincided with a decrease in production of defensive chemicals by the alga.
37:
329:. It then secures the edges of the blade to each other with a silken thread, produced from glands on the third and fourth pairs of pereopods, manipulating the thread with the first and second pairs. The weaving process continues rhythmically at the rate of about 24 silk attachments per minute, alternately on the left and right sides of the blade, and a tube is formed.
325:(gas-filled bladders) and it is on these blades that the amphipod lives. The blades grow continuously from near their bases and the amphipod chooses a position some way along a blade, rolling the edges together to form a tube. It first deposits a mass of silk on the blade and grips this with its 5th, 6th and 7th
336:
from which the blade grows is just above the junction with the pneumatocyst. The rate of elongation of the blade decreases over time and for about six days the nest is extended towards the base of the blade at about the same rate as the blade is growing. After that the rate of growth of the blade
245:. This home is made by rolling the sides of the blade together and securing them with silk. As the kelp blade grows, the nest is advanced down the blade towards the base, approximately keeping pace with the algal growth.
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is found in shallow water and can grow to a length of 45 m (148 ft) in a single season. It is attached to the
460:"Phylogenetic analysis of the family Ampithoidae Stebbing, 1899 (Crustacea: Amphipoda), with a synopsis of the genera"
36:
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from which grow several long slender stems. These are clad in numerous small leaf-like blades growing from
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monophyletic, with the species intermingled within a clade, the two genera were synonymised and
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is a tubicolous (tube-forming) amphipod that feeds and makes its home on the giant kelp
920:
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World
Amphipoda Database. Horton, T.; Lowry, J.; De Broyer, C.; et al. (eds.).
391:
World
Amphipoda Database. Horton, T.; Lowry, J.; De Broyer, C.; et al. (eds.).
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235:. It is a herbivore and constructs a tubular nest-like home on a blade of the
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has been reported from the
Caribbean Sea, Venezuela and the Southern Ocean.
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in 1982. Following a phylogenetic analysis that found neither
520:
Cerda, Osvaldo; Hinojosa, Iván A.; Thiel, Martin (2010).
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530:(Linnaeus) C. Agardh From Northern-Central Chile"
358:Lowry, J., De Broyer, C. (2014). Lowry J (ed.).
253:The species was originally described in 1845 as
8:
458:Peart, Rachael A.; Ahyong, Shane T. (2016).
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522:"Nest-Building Behavior by the Amphipod
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942:Taxa named by Henrik Nikolai Krøyer
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932:Crustaceans of the Atlantic Ocean
437:World Register of Marine Species
402:World Register of Marine Species
372:World Register of Marine Species
35:
1:
937:Crustaceans described in 1845
464:Journal of Crustacean Biology
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477:10.1163/1937240X-00002449
199:Peramphithoe gaudichaudii
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137:
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32:Scientific classification
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23:
499:. Natural History Museum
368:World Amphipoda database
263:Peramphithoe femorata'
207:Peramphithoe peregrina
183:Peramphithoe falklandi
678:Peramphithoe femorata
546:10.1086/BBLv218n3p248
526:(Krøyer) on the Kelp
524:Peramphithoe femorata
430:Peramphithoe femorata
362:Peramphithoe femorata
275:Peramphithoe femorata
259:Henrik Nikolai Krøyer
202:(Milne-Edwards, 1840)
191:Peramphithoe femorata
175:Peramphithoe brevipes
25:Peramphithoe femorata
16:Species of crustacean
585:Sunamphitoe femorata
528:Macrocystis pyrifera
495:Macrocystis pyrifera
395:Sunamphitoe femorata
306:Macrocystis pyrifera
301:Sunamphitoe femorata
290:Sunamphitoe femorata
279:Sunamphitoe femorata
242:Macrocystis pyrifera
221:Sunamphitoe femorata
141:Sunamphitoe femorata
534:Biological Bulletin
239:of the giant kelp
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823:Ampithoe femorata
780:Open Tree of Life
648:Open Tree of Life
577:Taxon identifiers
255:Ampithoe femorata
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167:Ampithoe femorata
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432:(Krøyer, 1845)"
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497:(giant kelp)"
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132:Binomial name
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501:. Retrieved
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285:Distribution
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267:Peramphithoe
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210:(Dana, 1852)
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194:Krøyer, 1845
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186:(Bate, 1862)
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178:(Dana, 1852)
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170:Krøyer, 1845
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122:
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79:Malacostraca
24:
18:
860:iNaturalist
793:SeaLifeBase
271:Sunamphitoe
233:Ampithoidae
110:Sunamphitoe
99:Ampithoidae
927:Corophiida
921:Categories
503:2014-06-06
443:19 January
408:19 January
377:2014-06-06
341:References
311:brown alga
237:sporophyte
229:crustacean
69:Arthropoda
838:Q49507725
600:Q63724790
327:pereopods
315:substrate
296:Behaviour
117:Species:
89:Amphipoda
55:Kingdom:
49:Eukaryota
878:10857803
832:Wikidata
746:11093966
693:Q7842454
687:Wikidata
594:Wikidata
562:12067862
554:20570848
334:meristem
319:holdfast
277:renamed
249:Taxonomy
226:amphipod
158:Synonyms
95:Family:
65:Phylum:
59:Animalia
45:Domain:
852:5177551
785:2985143
772:1735344
733:2216218
666:1007411
653:2985143
640:1007411
627:9507868
309:. This
151:, 1845)
105:Genus:
85:Order:
75:Class:
904:492239
891:202762
865:260500
811:237282
759:202761
720:318636
560:
552:
149:Krøyer
899:WoRMS
873:IRMNG
806:WoRMS
741:IRMNG
707:76RLP
661:WoRMS
614:53G2V
558:S2CID
317:by a
886:ITIS
847:GBIF
798:8769
767:NCBI
754:ITIS
728:GBIF
635:OBIS
622:GBIF
550:PMID
445:2023
410:2023
332:The
269:nor
715:EoL
702:CoL
609:CoL
542:doi
538:218
472:doi
257:by
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147:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
