Late summer, Ascophyllum extremely yellowed in sheltered East Dover, except in the immediate vicinity of a small sewage outfall.

Another small sewage outfall on the far shore results in darker colored rockweed interrupting the otherwise yellow seaweed belt.

Midsummer, 2001, cool-normal temperatures, yet rockweed has prominent "heat-damaged" patches. This is a relatively new sight here.

Spring, 2002, upper edge of Ascophyllum belt in sheltered areas appears 'burnt.' Likely due to lowered resistance to dessication.

Subtidal mature fucus, withered to a brown 'skeleton.' With younger Fucus and very pale Irish moss, mid-summer(...this is my 'seasick' photo...)

Dark pigmentation of rockweed growing inside sewage-polluted Halifax Harbour.

Pale subtidal rockweed heavily colonized by filamentous epiphytes.

Yellowed subtidal Asco, with deteriorating Fucus and yellow Irish moss and 'fuzzy' algae.

Pale rockweed on unpolluted beach, heavily overgrown by brownish 'fluff.'

Extremely withered Fucus low on a beach at Belliveau's Cove, N.S., September, 2001.

White 'hairs' develop on higher-positioned intertidal Fucus under conditions of nutrient shortage. (This is visible most of the year.)

Low intertidal Fucus in sheltered area at Prospect, N.S., extreme withering of older specimen and 'yellow and red' appearance of younger ones.

Subtidal Fucus vesiculosis also shows some degree of 'hair' development, and low pigmentation. Prospect, N.S.

Small rockweed showing consistent length of frond breakage, most likely due to wave action. Another sign of weakness in this plant?

Rockweeds commonly wash ashore with all of the mature tissue shrivelled to thin dark strips. Unusual, compared to drift seaweed gathered in the past.

Extreme withering of older rockweeds is now very visible along this shoreline.

'Singed' appearance of fine yellowed Ascophyllum in spring, near Peggy's Cove, N.S.

More 'singed' Ascophyllum, spring, 2002, Prospect, N.S.