[CT Birds] Plankton photos: more plankton questions
boletebill at yahoo.com
Thu Mar 1 09:51:27 EST 2012
Gulls-flock mass feeding....A great discussion of the bird food chain from my point of view.
Thanks for the responses to my questions and the discussion in general. Looking at the pics from CT Audubon they certainly look like barnacle larvae to my eye.
I guess one of my follow-up questions is this one: Given a dense mass of plankton near the surface are there also fish feeding on this food source and if there are fish what are they and how do we know that the gulls are feeding on plankton and not fish? If I missed to answer to this question in the thread already posted my apologies but it seems to me that this is an interesting phenomena and a good one to discuss here. Someone mentioned duck stomachs filled with plankton and I understand this... but gulls seem to be a different category in terms of their food preferences?
"For those who hunger after the earthly excrescences called mushrooms."
--- On Wed, 2/29/12, Scott Kruitbosch <skruitbosch at ctaudubon.org> wrote:
From: Scott Kruitbosch <skruitbosch at ctaudubon.org>
Subject: [CT Birds] Plankton photos
To: "ctbirds at lists.ctbirding.org" <ctbirds at lists.ctbirding.org>
Date: Wednesday, February 29, 2012, 9:47 PM
Charlie Barnard suggested that we put up a couple of photos Twan Leenders took of the samples Charlie provided him last year that he mentioned in detail earlier. Here they are in the CAS blog: http://ctaudubon.blogspot.com/2012/02/plankton-feeding-time-for-gulls.html
See for yourself and tell us what you think. Here's hoping we have many photos of masses of gulls coming in the next few weeks.
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