50:
33:
70:
275:
have a thin, encrusting form with a hispid surface due to emerging spicules. Their color is grey unless green from being in symbiosis with zoochlorellae (algae). Their bodies are permeated with pores, chambers, and canals for the flow of water through them. The smaller, more prevalent incurrent pores
251:
is found in both lotic (flowing water) and lentic (still) habitats. Typically in waters of about neutral pH with low to moderate alkalinity and high conductivity; in temperatures of 9 to 23 °C. They are sessile suspension feeders that attach to submerged surfaces such as rocks and logs in most
318:
the gemmules are yellow and spherical with a diameter ranging from 400-700 μm. The gemmuloscleres have birotulates of two notably different lengths. These details of long recurved rays with shaft spines and the shorter more abundant variation along with the length range of gemmuloscleres are
313:
can reproduce sexually or asexually. They can produce live larvae sexually or asexually they may bud or if a section breaks off the cells can reaggragate and grow into new specimens. In times of environmental stress, which is much more often in freshwater sponges, they can reduce their bodies or
293:
are the leuconoid stage of progression which means their form is of many collected channels and chambers clustered together so water moves throughout the specimen. The tissue is called the mesohyl and the water movement occurs through flagellated cells called choanocytes.
338:
live very much within a symbiosis state with many forms of algae (what gives it a green color, see above). This zoochlorellae may augment or supplement their sponge host's nutrition. Also, because of being a susceptible and responsive freshwater animal,
288:
Sponges have no true tissues or germ layers. While the cells are loosely organized, different cells are responsible for different functions within the animal but have the ability to transform into different cell types.
380:
Ricciardi, Anthony, and Reswig, Henry M. "Freshwater
Sponges (Porifera, Spongillidae) of Eastern Canada: taxonomy, distribution, and ecology". Canadian Journal of Zoology, Volume 71, #4 April 1993, 665-682.
298:
have siliceous spicules and collagen fibers to give it its form. Spicules are needle like structures which form the mineral skeleton. Megascleres are large spicules that form the main skeleton. Within
314:
produce gemmules or "cysts" which form a hard, protective coating over the asexual larvae so they can be moved about and grow when the conditions permit or are more favorable. In
366:
Hooper, John N.A, and Van Soest, Rob W.N. Systema
Porifera: A Guide to the Classification of Sponges, Volume 1. Kluwer Academic/Plenum Publishers, New York, NY 2002.
657:
525:
302:
the megascleres are slender, slightly curved acanthoxeas that range in length from 250- 329 μm and in width from 10-15 μm. Microscleres are absent.
644:
499:
327:
May be mistaken for common algae growth on rocks in habitat because of similar green color and flat in morphological types within a given species.
538:
703:
670:
590:
451:
543:
69:
260:
Sponges filter the water through them to collect numerous species of smaller organisms such as bacteria and protozoa.
240:
Nearctic region from Canada (Quebec, New
Brunswick) to Florida and northern Alaska to southern California.
413:
49:
32:
403:
Brusca, Richard C., and Brusca, Gary J. Invertebrates. 2nd. Sinauer
Associates, Inc. Sunderland, MA 2003.
698:
164:
675:
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64:
662:
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631:
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569:
57:
141:
692:
636:
478:
131:
577:
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512:
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121:
622:
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111:
81:
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649:
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40:
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are especially important in nutrient cycling and primary production.
229:
101:
91:
407:
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are the ostia and the larger excurrent pores are the oscula. Within
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species are potentially very valuable indicators of water quality.
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some of the most reliable details to observe in identification.
491:
411:
389:
606:
420:
8:
376:
374:
372:
408:
48:
31:
20:
362:
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284:Cell structure/internal characteristics
268:Physical characteristics (morphology)
193:
7:
14:
68:
280:the oscules are inconspicuous.
1:
466:Anheteromeyenia_argyrosperma
452:Anheteromeyenia argyrosperma
422:Anheteromeyenia argyrosperma
336:Anheteromeyenia argyrosperma
273:Anheteromeyenia argyrosperma
262:Anheteromeyenia argyrosperma
249:Anheteromeyenia argyrosperma
232:found across North America.
225:Anheteromeyenia argyrosperma
174:Anheteromeyenia argyrosperma
25:Anheteromeyenia argyrosperma
720:
704:Sponges described in 1880
192:
185:
170:
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65:Scientific classification
63:
56:
47:
39:
30:
23:
608:Spongilla argyrosperma
211:Spongilla argyrosperma
331:Additional importance
156:A. argyrosperma
236:Geographical range
686:
685:
565:Open Tree of Life
414:Taxon identifiers
323:Misidentification
252:inland habitats.
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16:Species of sponge
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228:is a freshwater
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397:Further reading
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341:Anheteromeyenia
333:
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316:A. argyrosperma
311:Anheteromeyenia
308:
300:A. argyrosperma
296:A. argyrosperma
291:Anheteromeyenia
286:
278:A. argyrosperma
270:
258:
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200:Anheteromeyenia
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143:Anheteromeyenia
67:
17:
12:
11:
5:
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196:Heteromeyenia
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43:cross section
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180:(Potts, 1880)
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165:Binomial name
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34:
29:
26:
22:
19:
699:Spongillidae
607:
421:
385:
340:
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309:
306:Reproduction
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204:argyrosperma
195:
173:
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155:
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142:
132:Spongillidae
112:Demospongiae
24:
18:
578:SeaLifeBase
552:NatureServe
513:iNaturalist
446:Wikispecies
214:Potts, 1880
122:Spongillida
693:Categories
347:References
150:Species:
88:Kingdom:
82:Eukaryota
663:10829380
623:Q7579005
617:Wikidata
557:2.742202
531:10940715
437:Q2925735
431:Wikidata
187:Synonyms
128:Family:
102:Porifera
98:Phylum:
92:Animalia
78:Domain:
58:Spicules
650:2244824
570:2834639
505:2244823
244:Habitat
138:Genus:
118:Order:
108:Class:
41:Gemmule
676:193924
596:167110
518:213623
492:338395
230:sponge
671:WoRMS
658:IRMNG
637:6ZDM2
591:WoRMS
583:50161
544:47735
526:IRMNG
479:5V2BN
645:GBIF
539:ITIS
500:GBIF
256:Diet
632:CoL
487:EoL
474:CoL
461:ADW
695::
673::
660::
647::
634::
619::
593::
580::
567::
554::
541::
528::
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502::
489::
476::
463::
448::
433::
371:^
355:^
202:)
198:(
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