1.0Reef Checkhttps://www.reefcheck.orgreefcheckdevhttps://www.reefcheck.org/author/reefcheckdev/rich600338<blockquote class="wp-embedded-content" data-secret="T0FIiEyME9"><a href="https://www.reefcheck.org/why-does-reef-check-california-record-some-species-even-if-they-are-not-on-transects/">Why does Reef Check California record some species even if they are not on transects?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.reefcheck.org/why-does-reef-check-california-record-some-species-even-if-they-are-not-on-transects/embed/#?secret=T0FIiEyME9" width="600" height="338" title="“Why does Reef Check California record some species even if they are not on transects?” — Reef Check" data-secret="T0FIiEyME9" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> https://www.reefcheck.org/wp-content/uploads/2011/06/Black_sea_bass_P.jpg350233During our Reef Check California surveys we record 73 species of fish, invertebrates and algae. Most of them are only recorded if we encounter them on one of the transect lines we lay out to estimate their population densities