2005 - Whitby Naturalists

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-1. I samc tirne numbers o{ C. helgolutdicus, which is smaller and less palatable to fish, have increased in proportion. C.finmarchfcus prefers cooicr watcr, and C. helgolandicu.s w?lrmer water. Links have been made from this to falling numbers of cod anC flatfish. Sea marnmals are not cxempt trom changes either. Risso's Dolphin, a primariiy warmer water specics, accoun[ed for more than ten per cent oi ceta,ceans seen in a survey hy hlewcastle University's Marine Labi'rratory last year. T'his ciolphin is usually found off the southwesr coast and hardly cvcr in the Nr:rth Sea - that is until very rcccnr years" It is thought that rhey are pursuing squid migraring up fionr rhe English Channcl. One of the iargest sightings of wLrales and dolphins'i,as ir pod of tw' hundred and fifty whitc-Beakcd Dolphins abour thirty miles otT Tyncmouth. This is another species prefl'rring wanner warers. The latest information I havc on fish stocks comes from a prcss release issued by ICES on i7 October <strong>2005</strong>.It provides a very mixed picrure of good and bad news. Sharks, skates and rays appear to be in rrouble. spurdog a'd porbeaglc are in poor condition; spurdog in particular are deplctccl to an ali-rirne low and rhe srock is thought to bc in danger of coilapse. ICES are recommending a zcro catch of this species, along with porbcagle, ccmmon skate antl thornback ray in the North sea. converscly, som.. shark specics are lncrcasing; these inclutle lesser spotted dogfish and smoorh hound. Haddock are srili plenriful (estimated 266,a0a tonnes this year) rcsulting ftom the large number spawned in 1999. Holvcver, frr;m 2000 onward spau,ning ievels have been below average so catch levels will &rll unirss there is another bie spawning year soon. cod stocks on rhe other hand remain well below the levels rccommcnded as a minimum, and ICES advise rh;]t none should be caught commercially. Plaice and sole arc said to need rcduction in catch. Efforts should be made to allow piaice spawning stock to increase and prevent any decline in sole sparvning stock. Sand ccls, on 5l
which so many sea bird coionies rely, are below the minimum recornrnended level of 600,000 tons at about 450,000 tons. Fisheries are closed for this species this year, and ICES recommend that they should remain closed until there is significant recovery in thc stock. - That is good news for birds at least. For anyone with access to the internet there are many interesting sites where you can get up.to-date information abotlt what is happening around our coasts. Two usefui ones are The British Marine Life Stuitry Society's website $,ww.glaucul.orq.tlk, and the rather more technical ICES website u'ww.igeg.dk. 54 PAUL \ilALKER.
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Whitby I{aturalists' Club @-btthy s
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President Vice President Chairman V
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THE CHAIRMAN'S REPORT I find it ver
Page 7 and 8: The Annual Report relies on the rec
Page 9 and 10: 2404 Ocrober 9d October i6'l' Octob
Page 11 and 12: SUMMER PROGRAMME 2OO5 Malr /'h Full
Page 13 and 14: THE COACH ORGANISER'S REPORT The su
Page 15 and 16: we could see out to sea, whcrc some
Page 17 and 18: WHITBY NATURALISTS' CLUB INCOME ACC
Page 19 and 20: THE TREASURERS REPORT As rhis is my
Page 21 and 22: undisturbed or unridy parts of the
Page 23 and 24: GENERAL INFORMATION ON AMPHIBIA' On
Page 25 and 26: In late August during an evening of
Page 27 and 28: THE GEOLOGICAL RECORDER'S REPORT No
Page 29 and 30: Preparations for a successful relca
Page 31 and 32: FIELD VOIE (Microtus dgresris) one
Page 33 and 34: Mavis Rei-rdman took the club to 6n
Page 35 and 36: n \< Xio 6-l -o
Page 37 and 38: Dryad's Saddle fungus - polyporus s
Page 39 and 40: THE BOTANICAL RECORDER'S REPORT Spr
Page 41 and 42: ENTOMOLOGY RECORDER'S REPORT This y
Page 43 and 44: It rnay be illustrated in this repo
Page 45 and 46: BEETLES Early this year I had a few
Page 47 and 48: from June 5.h some slimy black larv
Page 49 and 50: ARCHAEOLOGICAL RECORDERS R'EPORT So
Page 51 and 52: o l8th May, Bullfinches at Upper Es
Page 53 and 54: Nightjar Our evening visit to Harwo
Page 55 and 56: magically calmed the weather and th
Page 57: The researchers fear that ecosystem
Page 61 and 62: It is not crften possible to meet u
Page 63 and 64: ASCS|ltYCCr'FtA HEMIASCOMYCETES Tap
Page 65 and 66: I COb{I}LG ATTRACTIONS ANNUAL LLINC
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2005 - Whitby Naturalists

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