18. maaliskuuta 2021

18. helmikuuta 2021

11. helmikuuta 2021

Obscuring my tidepool observations in SF Bay Area counties

A sad decision. It may not help as much as other more tangible measures to stop the widespread taking/destruction of the local reefs that began in early 2020, but I don't want my personal iNat observations to assist tech-saavy foragers in any way. For now, this means Mollusks in San Francisco, Marin, San Mateo, Santa Cruz and Monterey counties only and genus Cancer crabs statewide.

Yes, it will now look like some tidepool creatures were seen miles inland. Sorry about that... If this affects your conservation project, and you need the precise locations of my observations, please message me privately, I'm happy to help.


Lähetetty 11. helmikuuta 2021 23:58 käyttäjältä anudibranchmom anudibranchmom | 12 kommenttia | Jätä kommentti

13. tammikuuta 2021

Eastern Pacific Nudibranch News: Tritoniidae: 1) reinstated Tritonia exulsans and 2) New genus Tritonicula (affects 5 species)

Two recent taxon splits from a new paper from Tatiana Korshunova and Alexander Martynov (citation below). Action is only required on the first change.

Change #1: Tritonia exsulans has been reinstated - most recently it was included in Tritonia tetraquerta - and all iNat Observations WILL need to be re-reviewed since the ranges overlap. The super short, nonscientific answer on the visual difference/range is:

T. exsulans: Pink or salmon color, with white lines on the oral veil and between the dorsolateral appendages (range is California to British Columbia)
T. tetraquerta: Orange color, no white lines (range is Oregon to Kamchatka and Kuril Islands)

Change #2: Tritonicula: A new genus name for five species of Family Tritoniidae (Lamarck, 1809). I made the change to the new names in iNat this morning, and no manual changes are required (yay!). The new species names are:

Tritonicula bayeri (Ev. Marcus & Er. Marcus, 1967)
Tritonicula hamnerorum (Gosliner & Ghiselin, 1987)
Tritonicula myrakeenae (Bertsch & Osuna, 1986)
Tritonicula pickensi (Ev. Marcus & Er. Marcus, 1967)
Tritonicula wellsi (Er. Marcus, 1961)

Here's the full paper: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0242103

Lähetetty 13. tammikuuta 2021 18:22 käyttäjältä anudibranchmom anudibranchmom | 0 kommenttia | Jätä kommentti

23. syyskuuta 2020

Eastern Pacific Nudibranch News: Triopha catalinae AND Triopha modesta

New paper: https://link.springer.com/article/10.1007/s12526-020-01107-2 The external morphological difference is the shape of the lateral tubercles. Dendritic/short = T. modesta, Conical/rounded = T. catalinae. Close to all, if not 100%, of my SF Bay area observations are T. catalinae.

Lähetetty 23. syyskuuta 2020 04:42 käyttäjältä anudibranchmom anudibranchmom | 2 kommenttia | Jätä kommentti

21. elokuuta 2019

My California Nudibranch Articles

Heterobranch Sea Slug Range Shifts in the Northeast Pacific Ocean Associated with the 2015-16 El Nino by Goddard et al. (2018): https://www.researchgate.net/publication/328038414_Heterobranch_Sea_Slug_Range_Shifts_in_the_Northeast_Pacific_Ocean_associated_with_the_2015-16_El_Nino


Here are the links to my lightweight articles and guest blog posts for the Morro Bay National Estuary Program and the Fitzgerald Marine Reserve:

MORRO BAY’S ‘GATEWAY NUDI:' OPALESCENT NUDIBRANCH (July 12, 2019): https://www.mbnep.org/2019/07/12/sea-slug-of-the-month-morro-bays-gateway-nudi-opalescent-nudibranch/

YELLOW BLOBS OF AWESOMENESS: SEA GODDESSES, SEA LEMONS AND THAT ONE WITH THE TENTACLES (Aug 9, 2019): https://www.mbnep.org/2019/08/09/sea-slug-of-the-month-yellow-blobs-of-awesomeness/

FLAMING EYE-CANDY IN THE TIDEPOOLS: SPANISH SHAWL NUDIBRANCHS (Sept 13, 2019): https://www.mbnep.org/2019/09/13/flaming-eye-candy-in-the-tidepools-spanish-shawl-nudibranchs-by-robin-agarwal/

IT'S A PARTY: BABKINA FESTIVA MAKES AN APPEARANCE AT FITZGERALD MARINE RESERVE (October 2019, Between the Tides (Newsletter of Friends of Fitzgerald Marine Reserve): http://www.fitzgeraldreserve.org/newffmrsite/wp-content/uploads/2019/11/BetweenTides_10-19_web.pdf

THE "SMALLS:" THE TEENIEST, TINIEST SEA SLUGS IN CALIFORNIA (Oct 11, 2019): https://www.mbnep.org/2019/10/11/the-smalls-the-teeniest-tiniest-sea-slugs-in-california/

A SEA SLUG BY ANY OTHER NAME: SCENTED SEA SLUGS, HOPKINS'S ROSE, and GENUS FLABELLINA (Nov 15, 2019): https://www.mbnep.org/2019/11/15/a-sea-slug-by-any-other-name-guest-post-by-robin-agarwal/

SEA CLOWNING AROUND: TRIOPHA MACULATA AND TRIOPHA CATALINAE (Dec 13, 2019): https://www.mbnep.org/tag/triopha-maculata/

RARE NUDIBRANCH! TWO CITIZEN SCIENTISTS FIND CERBERILLA PUNGOARENA IN THE MORRO BAY ESTUARY (Feb 21, 2020): https://www.mbnep.org/2020/02/21/rare-nudibranch-two-citizen-scientists-find-cerberilla-pungoarena-in-the-morro-bay-estuary/

THE SALT-AND-PEPPER NUDIBRANCH MYSTERY: WHY DOES AEGIRES ALBOPUNCTATUS SAY 'YES' TO FITZGERALD MARINE RESERVE BUT 'NO' TO PILLAR POINT? (March 2020) Between the Tides (Newsletter of Friends of Fitzgerald Marine Reserve): http://www.fitzgeraldreserve.org/newffmrsite/wp-content/uploads/2020/03/BetweenTides_March2020.pdf (Page 6)

THE PERFECT SOCIAL DISTANCING ACTIVITY: EARLY MORNING TIDEPOOLING FOR NUDIBRANCHS IN SAN LUIS OBISPO COUNTY (June 19, 2020) https://www.mbnep.org/2020/06/19/the-perfect-social-distancing-activity-early-morning-tidepooling-for-nudibranchs-in-san-luis-obispo-county/

SEA SLUGS ON THE MOVE: BENT ON WORLD DOMINATION, OR OPPORTUNISTIC TRAVEL BUMS? (Sept 19, 2020) https://www.mbnep.org/2020/09/19/sea-slugs-on-the-move-bent-on-world-domination-or-opportunistic-travel-bums/

--- I'll add more links to this post as they are published.

Lähetetty 21. elokuuta 2019 00:09 käyttäjältä anudibranchmom anudibranchmom | 0 kommenttia | Jätä kommentti

14. joulukuuta 2018

E. Pacific Nudibranch News: Six Deepwater Nudibranchs added to iNat (and CA Nudibranchs Guide)

Happy Holidays! Based on WoRMS (referencing Angel's 2018 paper https://biotaxa.org/Zootaxa/article/view/zootaxa.4526.4.1), I have added six new deepwater nudibranchs to iNat, four of which also were added to the CA Sea Slugs Guide. We can only hope that one will wash ashore someday - or perhaps an MBARI researcher will share a few photos!

They are:

  • Aeolidia libitinaria (Undertaker Nudibranch, found under whale bones)
  • Ziminella vrijenhoeki (Vrijenhoeki's Nudibranch - also under whale bones)
  • Tritonia nigritigris (Black Tiger Nudibranch)
  • Zeusia herculea (fanciful but no common name yet - I'm guessing this is a big one?)
  • Cuthona methana (Named re methane seeps, but no common name yet) - OREGON
  • Dendronotus claguei (Clague's Nudibranch) - MEXICO, south of the Gulf of CA

Here's a quick read about them from MBARI, with photos and a cool video.
@kueda will perhaps note some wordier similarities in the opening paragraph of the article with his own intro to the CA Sea Slugs Guide... ;-)

PS. We now have 180 sea slugs in the CA Guide!

Lähetetty 14. joulukuuta 2018 01:18 käyttäjältä anudibranchmom anudibranchmom | 2 kommenttia | Jätä kommentti

9. elokuuta 2018

E. Pacific Nudibranch News: Orienthella trilineata, O. cooperi and O. fogata now active on iNat

Following WoRMS, the genus Orienthella is now active on iNat. As per: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1049561

Lähetetty 9. elokuuta 2018 16:22 käyttäjältä anudibranchmom anudibranchmom | 0 kommenttia | Jätä kommentti

12. huhtikuuta 2018

Pulmonata and Opisthobranchia... and WoRMS

Hi Mollusk Curators/Taxonomy Experts,

We've been called upon to make a group decision! :-O

As curators, our standing orders for iNaturalist mollusk curation are to "follow WoRMS." So today in the interests of keeping iNat tidy, I took a look -- and I noticed that WoRMS has changed the taxonomy for Opisthobranchia and Pulmonata, which are no longer accepted concepts.

So OK, that means it is time to update iNat to align it with WoRMS, right? Or maybe not? Ken-ichi has asked me to ask you what WE want to do, since this is above Order level (and thus off limits to humble curators), and would require some iNat resources to sort out all the observations. How much resources? Well, as of this minute we have 38,000 Opisthobranchia observations (of which 33,000 are Nudibranchs). That's somewhere between Buteos (hawks) at ~34,000 and Larinae (gulls) at ~43,000. So not huge by other Life standards, but according to Ken-ichi, still some processing time as well as the human time would be involved.

The task: We'd have to start with subclass Heterobranchia - still accepted, and 88,000 observations on iNat - and work down, aligning everything with WoRMS. But even the first step seems to get messy, at least to my uneducated eye; take a look at WoRMS and there's terms like 'unassigned' and 'Lower Heterobranchia' -- ?? http://www.marinespecies.org/aphia.php?p=taxdetails&id=14712 And so it goes, on down to our more familiar Nudibranchia-level territory.

Now, not being a trained biologist myself, I'm opinionless - but willing to compile your replies into a document that iNat can either 1) act upon as per WoRMS; or 2) do a few tweaks; or 3) do nothing, and at least have an expert opinion/reason or two for doing so until something else changes in the future.

And of course, at least we'll all know what's going on.

So -- please reply! And thank you for your time!

In no particular order, and feel please free to forward to other curators/experts: @kueda @mcduck @tgosliner @jeffgoddard @bernardpicton @jpsilva @v_s_ @lemurdillo @allisonjgong @rebeccafay @kestrel @susanhewitt @pliffgrieff @sluglust @maractwin @erwinkoehler @johnturnbull

Lähetetty 12. huhtikuuta 2018 06:10 käyttäjältä anudibranchmom anudibranchmom | 11 kommenttia | Jätä kommentti

28. maaliskuuta 2018

New Guide: Opisthobranchs of Baja California Peninsula

Hi Everyone,
Today is Day One of the publication of this guide, so it is likely to be sketchy and full of errors. That's where you come in @jeffgoddard @mcduck @kueda @bahia_de_loreto @claudia_jeannette @nezahualpilli @kestrel @tgosliner and anyone else with an interest! Please message me any additions/removals/unspeakable horrors you notice, and I will gladly fix it.

  • Robin

Lähetetty 28. maaliskuuta 2018 18:27 käyttäjältä anudibranchmom anudibranchmom | 3 kommenttia | Jätä kommentti